Caterpillarmotor grader
Caterpillar 12F
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar 12F is a rigid-frame, direct-drive motor grader built for road maintenance, grading, and general site work. Its moldboard is 3.7 m (12 ft) wide - Cat's "12" model number names blade width, not weight or horsepower. Power comes from an inline six-cylinder diesel: the mechanical D333, naturally aspirated and rated around 93 kW (125 flywheel horsepower) gross, though sources disagree on whether some production instead carries the mechanical, non-electronic 3306 that shares the D333's bore and stroke - confirm the engine actually fitted against the serial prefix and engine tag. Base operating weight runs about 14,027 kg (30,925 lb), more with factory options such as the left blade extension or heavier tire and wheel packages. Transport dimensions run roughly 8.18 x 2.36 x 3.18 m (26'10" x 7'9" x 10'5"). Caterpillar built the 12F from 1965 into the early 1970s as the last rigid-frame model in the No.12 grader line that traces back to the 1930s; it replaced the 12E and was itself replaced by the 12G in 1973-74. Factory configuration included a direct-drive 6F-4R transmission, hydraulic-over-manual blade and steering control with hydraulic assist, standard power steering, and options such as a left-side blade extension, scarifier/ripper attachment, and various tire and wheel packages.
Across the No.12 lineage the biggest jumps were engine output and control technology, not chassis layout. The 12E, introduced in 1959, brought Cat's first six-cylinder grader engine at a de-rated 86 kW (115 hp) with full mechanical blade and steering linkage. The 12F carried that engine family into the mid-to-late 1960s at a boosted output and added power-assisted planetary blade controls plus standard power steering, while staying a direct-drive, rigid-frame machine. Engine sourcing within 12F production is less settled: confirmed 12F serial blocks are documented running the D333, though some factory literature for those same serial ranges is instead bound around the 3306 spec - treat that as an open question rather than a confirmed mid-run change until checked against a specific machine's engine tag. The 12G that followed in 1973-74 dropped the straight frame for an articulated one, added powershift, and gave every blade function full hydraulic control, closing out the mechanical No.12 era. On the used and parts market today, 12F units are valued as simple, all-mechanical graders with no electronics to fail - sought by municipalities, ranches, and collectors running basic equipment. Because the 3306 (and the D333 sharing its bore and stroke) stayed in Cat's engine lineup for decades afterward, core engine parts remain reasonably available, but grader-specific driveline, circle, and drawbar components are increasingly NOS-only or reproduction, and confirming serial number prefix matters before ordering parts.
Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.
Caterpillar 12F specifications
Engine
| Engine | Cat D333, naturally aspirated 6-cylinder diesel, direct drive - sources disagree on whether some production carries the mechanical 3306 instead (it shares the D333's bore and stroke); confirm the engine actually fitted against the serial prefix and engine tag |
| Gross power | 93 kW (125 hp) flywheel, consistent across the production run |
| Displacement | 10.5 L (638 cu in); bore 120.7 mm x stroke 152.4 mm (4.75 in x 6.0 in) |
| Cylinders | 6, inline |
| Emissions tier | None - mechanical diesel predates non-road emissions regulation |
Weights
| Operating weight (standard configuration) | 14,027 kg (30,925 lb) |
| Shipping weight | Not published separately; actual weight varies with scarifier, cab, and rear counterweight options |
| Ground pressure | Not published for this wheeled grader |
Dimensions
| Transport length | 8.18 m (26 ft 10 in) |
| Transport width | 2.36 m (7 ft 9 in) |
| Transport height | 3.18 m (10 ft 5 in) |
| Moldboard (blade) width | 3.66 m (12 ft) standard; 4.27 m (14 ft) with optional 0.61 m (2 ft) left-hand extension |
| Tires, front/rear | 14.00-24 |
| Wheelbase / ground clearance | Not documented in available literature for this model |
Performance
| Transmission | 6 forward / 4 reverse gears, direct drive with oil-clutch main drive; the 89H-prefix line (1969-1973) is factory-listed as a separate variant from the standard direct-drive units, consistent with a power-assist option |
| Travel speed | Gear-by-gear travel speeds not published in available sources for this model |
| Steering | Standard power steering, new to this series versus the preceding 12E |
| Frame / blade control | Rigid (non-articulating) frame; hydraulic-over-manual blade control with hydraulic assist; blade side shift |
| Gradeability | Not published for this model |
Service capacities (summary)
| Fuel tank | 284 L (75 US gal / 62.5 imp gal) |
| Hydraulic system | 32.25 L (8.5 US gal / 7 imp gal) |
| Engine oil (crankcase and flywheel clutch) | 27.5 L (7.25 US gal / 6 imp gal) |
| Cooling system | 41.75 L (11 US gal / 9 imp gal) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
12F fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) - Cat D333/D333C diesel | Not published in the sources reviewed for this exact serial range - confirm against the machine's OMM plate or a Cat dealer before servicing. | Straight-grade engine oil by ambient temperature, per period Cat practice: SAE 30 above 0 C (32 F), SAE 10W below 0 C (32 F). This generation predates Cat's DEO-branded oil line. |
| Cooling system | Not published in the sources reviewed for this exact serial range - confirm against the machine's OMM or a Cat dealer before servicing. | Ethylene-glycol base coolant with a Cat-approved supplemental coolant additive/inhibitor, mixed for the expected ambient range. This generation predates Cat ELC-branded coolant. |
| Fuel tank | Not published in the sources reviewed for this exact serial range - confirm against the machine's OMM or a Cat dealer before servicing. | No.2-D diesel fuel (No.1-D or a winter blend recommended in cold climates to control fuel waxing/gelling). |
| Transmission and rear axle (combined compartment - direct-drive, no torque converter) | No set volume given; the OMM/parts book calls for filling to the top of the filler neck on the rear-axle housing cover rather than a fixed liter/gallon figure. | EP gear oil to SAE 90, ISO 220, or AGMA 5 grade. Multigrade engine-type oils (e.g., 20W-50) are not the preferred choice here even where viscosity overlaps, since they are formulated as engine oil rather than gear oil. |
| Final drives / tandem drive housings (each side) | 22.7 L (6 US gal) per side | SAE 90 gear oil for use above 0 C (32 F); a heavier gear-oil grade is used in colder climates. |
| Hydraulic system / power-control housing (blade-lift and steering-assist circuit, fed from a sight-glass-checked reservoir at the base of the control tower) | 17 L (4.5 US gal) | Crankcase-oil (CO) spec fluid on earlier-production 12F units: SAE 30 above 0 C (32 F), SAE 10W below 0 C (32 F). Later-production 12F units call for a Dexron-type automatic transmission fluid instead, per a mid-production specification change. |
| Grease (chassis and pin lubrication points - spec only, no reservoir capacity) | Per-point application only; no reservoir/system capacity applies. | Multipurpose EP chassis grease, NLGI Grade 2 (Cat Multipurpose Grease or equivalent). |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 12F maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
| Every 6,000 h |
|
Servicing the 12F beyond the schedule
Predictive Maintenance & Fluid Analysis
The 12F has no controller, no codes, and no telematics - predictive care means oil sampling and manual checks. Pull engine oil samples each interval and watch for iron and copper trending up, a sign of worn cam followers or injection pump plungers on the D333 or 3306. Sample tandem case oil for metal fines that flag chain and sprocket wear before a chain snaps. Track circle-to-drawbar shim clearance over time; growing slop predicts binding or gear damage long before it happens.
Corrective & Common Repairs
Typical 12F repairs center on the chain-driven tandems and the mechanical blade-lift gears. Stretched drive chains and worn sprockets inside each tandem case are the most common wear-driven fix; catch them before a chain jumps and tears up the case. Circle wear usually traces back to grease reaching the bull gear and packing dirt into the rim - keep it dry and shimmed, not greased. Injection pump and fuel line issues cause most no-start and power-loss complaints; bleed air from the fuel system first before chasing anything deeper.
Overhaul & Rebuild Points
Rebuild-grade wear on a 12F concentrates in three spots: the engine long block (rings, liners, and injection pump reconditioning once oil consumption or smoke climbs), the tandem cases (chains, sprockets, and bearings run to their service limit, not replaced piecemeal), and the circle-drawbar assembly (bushings, shims, and wear plates at the ball-and-socket and center pivot). Hydraulic-assist cylinders and pumps for steering and blade lift are the fourth point: reseal or replace once drift or slow response appears, since this system predates full hydraulic circuits.
Seasonal & Environment Servicing
Cold-climate 12Fs need a winter-weight engine oil change and a coolant antifreeze check before frost, since the mechanical injection pump is unforgiving of fuel wax and slow cranking. In dusty, high-abrasion ground work, shorten air cleaner service and inspect the dry-type element more often than the base interval - there is no electronic derate to protect the injection pump from ingested dirt. In wet or muddy conditions, purge water from tandem case and circle grease points at every service so trapped moisture doesn't accelerate chain and bushing corrosion.
12F common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 1P-2299 | Filter As-Fuel | Fuel system service | Check fitment → |
| 5S-9665 | Fuel Filter | Fuel system service | Check fitment → |
| 4N-5121 | Primary Fuel Filter | Fuel system service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
12F fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| No CID/FMI/MID diagnostic code (none displayed) | The 12F has no electronic control module and no Cat Data Link, so it cannot generate or display a CID-FMI or SPN-FMI style fault code. | The 12F predates Caterpillar's electronic engine and machine controls entirely; both the D333 and the 3306 some sources tie to this model use mechanical governors and mechanical injection pumps with no ECM. | Diagnose with the mechanical service manual, a multimeter, and direct gauge/pressure checks; there is no diagnostic port or scan tool interface on this machine. |
| Engine oil pressure warning lamp / gauge low reading | Dash oil pressure gauge (or warning lamp on some panel variants) drops into the low/red zone. | Low engine oil level, worn oil pump, plugged filter, or a failed oil pressure sender/switch. | Stop the engine immediately, check oil level and filter condition, and verify the pressure sender before restarting. |
| Coolant temperature gauge in red zone | Engine coolant temperature gauge reads above the normal operating band. | Low coolant level, slipping or broken fan belt, plugged radiator, or thermostat failure. | Idle the engine down, check coolant level and belt tension, and inspect the radiator for blockage before shutting down. |
| Ammeter / charging indicator showing discharge | Charging gauge or lamp shows the battery is discharging instead of charging. | Loose or broken generator/alternator belt, worn brushes, or a faulty voltage regulator. | Check belt tension and charging circuit wiring, then bench-test the generator/alternator output and regulator. |
| Circle drive shear pin failure (clatter on circle rotation) | Sudden clattering noise and loss of drive when rotating the circle in one direction, caused by the pin that protects the circle drive shearing. | Circle drive overload, worn or misadjusted circle guides, or an out-of-round circle. | Stop the machine, inspect and replace the sheared pin, then check circle guide adjustment and circle roundness before returning to service. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
12F attachments & work tools
Moldboard / grading blade
Rigid-frame 12F carries a 12 ft (3.7 m) class moldboard consistent with the No. 12 lineage; some configuration listings show 14 ft (4.3 m) achieved with 2 ft (0.6 m) end extensions, so treat exact cataloged width as varies by configuration/series. Hydraulic side shift is available; blade lift/angle runs through the 12F's power-assisted mechanical linkage with hydraulic assist rather than the full hydraulic circuit used on later articulated models.
Front scarifier
Light-duty scarifier hangs off the front lift group ahead of the front axle, used to break up compacted material, thin asphalt, or rocky subgrade before grading. Depth control and forward visibility are limited compared with a mid-mounted unit because of its position ahead of the steering wheels.
Mid-mount scarifier
Mounts behind the front axle for better cut-depth control, improved operator sightline to the shanks, and the ability to fracture harder material than the front-mount unit. Common upgrade path over the front scarifier on this size class of grader.
Rear ripper / scarifier
Multi-shank ripper bolts to the rear frame extension behind the tandems for breaking hardpan, rock, or old pavement ahead of a grading pass; shank count and spacing on surviving 12F units vary by dealer-installed kit. Heavier ripper shanks are used for hard breaking, lighter scarifier shanks where maximum surface fracture is wanted.
Front push block
Flat push plate bolts to the nose plate and doubles as a counterweight for a rear ripper and as a light dozing/push point. Shares the front mounting area with the front lift group rather than needing its own hydraulic circuit.
Front lift group
Mounting and lift frame at the nose of the machine for hanging a front scarifier or push block; the lift function ties into the grader's own hydraulic valve bank rather than a standalone kit. Bracketing on this era of grader is model-specific bolt/pin hardware, not a shared quick-coupler across tool types.
Snow removal attachments
Class-level options documented across this generation of Cat grader include a front snow plow and a mast or mastless snow wing hung to one side of the moldboard for wide-path clearing; wing fold/tilt needs its own hydraulic cylinder fed from the machine circuit. Tie to the 12F specifically is general to the size class rather than model-documented, so verify with a dealer for exact fitment.
Cab, ROPS and guarding
Open operator canopy with ROPS is the era-standard configuration; an enclosed cab with heater and, later, air conditioning shows up as a factory or dealer retrofit option on surviving units. Radiator screens and added mirrors/guarding appear as dealer-fitted options rather than a cataloged factory package.
Tires
14.00-24 bias-ply is the standard fitment documented across 12F listings and matches the wheel/tire size carried into the later 12-series graders of this class.
All 12F assemblies by section
Every catalogued assembly group for the Caterpillar 12F. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Central Structure
Camshaft (2p6202 N/S)
| 2P***02 | Camshaft Group-Single; Single Camshaft Group | 1 |
4n5163 Cylinder Block Cover Group
| 4N***63 | Cover Group; Cylinder Block Cover Group | 1 |
Cylinder Block Cover (2p6256 N/S)--Type 1
| 2P***56 | Cover Group; Cylinder Block Cover Group | 1 |
Cylinder Block Cover (2p6256 N/S)--Type 2
| 2P***56 | Cover Group; Cylinder Block Cover Group | 1 |
Cylinder Block Cover (4n5164 N/S)
| 4N***64 | Cover Group-Cylinder Block; Cylinder Block Cover Group | 1 |
Cylinder Block Cover (2p6517 N/S)--Type 2
| 2P***17 | Cover Group-Cylinder Block; Cylinder Block Covers Group | 1 |
Cylinder Block And Cover (2p6517 N/S)--Type 1
| 2P***17 | Cover Group-Cylinder Block; Cylinder Block Covers Group | 1 |
Cylinder Block Cover (4n8675 N/S)
| 4N***75 | Cover Group-Cylinder Block | 1 |
4n7693 Crankshaft Assembly--Field Replacement
| 4N***93 | Crankshaft As | 1 |
9s3057 Crankshaft Assembly--Field Replacement
| 9S***57 | Crankshaft Assembly | 1 |
Crankshaft Bearings And Thrust Plate Group
| 4S***81 | Bearing (.010 In. Undersize); Bearing (0.25 mm Undersize) | 7 |
| 4S***83 | Bearing (.020 Undersize); Bearing (.020 Undersize) | 7 |
| 4S***85 | Bearing (.030 In. Undersize); Bearing (0.76 mm Undersize) | 7 |
Crankshaft (2p6222 N/S)
| 2P***22 | Crankshaft Group; Crankshaft Group | 1 |
Crankshaft (2p6220 N/S)
| 2P***20 | Crankshaft Group | 1 |
2p6220 Crankshaft Group--Type 2
| 2P***20 | Crankshaft Group | 1 |
Crankshaft Seal (2p7309 N/S)
| 2P***09 | Crankshaft Seal | 1 |
6n221 Crankshaft Seal Group
| 6N***21 | Crankshaft Seal Group | 1 |
Crankshaft Seal (4n5028 N/S)
| 4N***28 | Crankshaft Seal Group | 1 |
2p8776 Cylinder Block Assembly
| 2P***76 | Cylinder Block As | 1 |
Cylinder Block Cover (2p6558 N/S)
| 2P***58 | Cylinder Block Cover | 1 |
Cylinder Block (2p6558 N/S)
| 2P***58 | Cylinder Block Cover | 1 |
2p6560 Cylinder Block Group
| 2P***60 | Cylinder Block Group; Cylinder Block Group | 1 |
Connecting Rod And Piston (9s8912 N/S)--6 Required
| 9S***12 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
Connecting Rod And Piston (2p6272 N/S)--6 Required
| 2P***72 | Piston & Rod Group | 1 |
Connecting Rod And Piston (4n4028 N/S)--6 Required
| 4N***28 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
Crankshaft Seal (6n220 N/S)
| 6N***20 | Seal Group-Crankshaft | 1 |
2p6483 Crankshaft Seal Group
| 2P***83 | Seal Group-Crankshaft | 1 |
2p6226 Crankshaft Seal Group
| 2P***26 | Seal Group-Crankshaft; Seal Group-Crankshaft | 1 |
2p6224 Crankshaft Seal Group
| 2P***24 | Seal Group-Crankshaft; Crankshaft Seal Group | 1 |
2p6223 Crankshaft Seal Group
| 2P***23 | Seal Group-Crankshaft; Crankshaft Seal Group | 1 |
Crankshaft Seal (2p7308 N/S)
| 2P***08 | Seal Group-Crankshaft | 1 |
Cooling System
Engine Oil Cooler (2p7738 N/S)
| 2P***38 | Cooler Group-Engine Oil; Engine Oil Cooler Group | 1 |
2p6215 Engine Oil Cooler Group
| 2P***15 | Cooler Group-Engine Oil; Oil Cooler Group Engine | 1 |
Transmission Oil Cooler (2p6515 N/S)
| 2P***15 | Cooler Group-Transmission Oil; Transmission Oil Cooler Group | 1 |
Transmission Oil Cooler (2p6510 N/S)
| 2P***10 | Cooler Group-Transmission Oil; Transmission Oil Cooler Group | 1 |
Transmission Oil Cooler (2p6508 N/S)
| 2P***08 | Cooler Group-Transmission Oil; Transmission Oil Cooler Group | 1 |
Transmission Oil Cooler (2p7736 N/S)
| 2P***36 | Cooler Group-Transmission Oil; Transmission Oil Cooler Group | 1 |
Engine Oil Cooler (4n3719 N/S)
| 4N***19 | Engine Oil Cooler | 1 |
Housing And Regulator Gp(2p8175 N/S)
| 2P***75 | Housing & Regulator Group; Regulator And Housing Group | 1 |
Housing And Regulator (2p8173 N/S)
| 2P***73 | Housing & Regulator Group; Regulator And Housing Group | 1 |
Housing And Regulator (2p8174 N/S)
| 2P***74 | Housing & Regulator Group; Housing And Regulator Group | 1 |
Housing And Regulator (3n3271 N/S)
| 3N***71 | Housing & Regulator Group; Housing And Regulator Group | 1 |
Housing And Regulator (2p8176 N/S)
| 2P***76 | Housing & Regulator Group | 1 |
Housing And Regulator (2p8170 N/S)
| 2P***70 | Housing & Regulator Group | 1 |
Housing And Regulator (2p8177 N/S)
| 2P***77 | Housing & Regulator Group | 1 |
Housing And Regulator (2p8171 N/S)
| 2P***71 | Housing & Regulator Group; Housing And Regulator Group | 1 |
Housing And Regulator (2p8172 N/S)
| 2P***72 | Housing & Regulator Group; Regulator And Housing Group | 1 |
Housing And Regulator (4n3712 N/S)
| 4N***12 | Housing And Regulator | 1 |
Housing And Regulator (2p8178 N/S)
| 2P***78 | Housing And Regulator; Housing And Regulator Group | 1 |
2p6188 Water Lines Group
| 2P***88 | Lines Group-Water; Water Lines Group | 1 |
2p7740 Water Lines Group--Elbow
| 2P***40 | Lines Group-Water; Water Lines Group--Elbow | 1 |
2p7741 Water Lines Group--Pipe
| 2P***41 | Lines Group-Water; Water Lines Group-- Pipe | 1 |
Water Lines (2p7730 N/S)
| 2P***30 | Lines Group-Water; Water Lines Group | 1 |
2p7728 Water Lines Group--Elbow
| 2P***28 | Lines Group-Water; Water Lines Group (Elbow) | 1 |
Water Lines (2p7728 N/S)--Elbow
| 2P***28 | Lines Group-Water; Water Lines Group (Elbow) | 1 |
2p661 Water Pump Group
| 2P***61 | Pump Group-Water; Water Pump Group | 1 |
2p662 Water Pump Group
| 2P***62 | Pump Group-Water; Water Pump Group | 1 |
Transmission Oil Cooler (4n9068 N/S)
| 4N***68 | Transmission Oil Cooler | 1 |
4n6646 Transmission Oil Cooler Group
| 4N***46 | Transmission Oil Cooler Group; Oil Cooler Group Transmission | 1 |
Transmission Oil Cooler (4n6646 N/S)
| 4N***46 | Transmission Oil Cooler Group; Oil Cooler Group Transmission | 1 |
Electrical System
2p1204 Alternator Group--24 Volt, 19 Ampere
| 2P***04 | Alternator Group | 1 |
2p7836 Alternator Group--24 Volt, 19 Ampere
| 2P***36 | Alternator Group-Charging; Charging Alternator Group | 1 |
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 2 Of 2
| 5S***88 | Alternator Group-Charging | 1 |
Alternator (2p7835 N/S)--24 Volt--50 Ampere
| 2P***35 | Alternator Group-Charging | 1 |
Alternator (4n5090 N/S)--24 Volt, 19 Ampere
| 4N***90 | Alternator Group-Charging | 1 |
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 1 Of 2
| 5S***88 | Alternator Group-Charging | 1 |
2p7836 Alternator Group--24 Volt--19 Ampere
| 2P***36 | Alternator Group-Charging; Charging Alternator Group | 1 |
2p6162 Electric Starting Motor Group--Prestolite--24 Volt--Part 1 Of 2
| 2P***62 | Electric Starting Motor Group | 1 |
2p6162 Electric Starting Motor Group--Prestolite--24 Volt--Part 2 Of 2
| 2P***62 | Electric Starting Motor Group | 1 |
4n3180 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 2 Of 2
| 4N***80 | Electric Starting Motor Group | 1 |
4n3180 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 1 Of 2
| 4N***80 | Electric Starting Motor Group | 1 |
5s8501 Glow Plug Group
| 5S***01 | Glow Plug Group; Glow Plug And Wiring Group | 1 |
Solenoid Shut-Off (7s9480 N/S)--24 Volt
| 7S***80 | Shut-Off Group; Solenoid Shut-Off Group | 1 |
9s7976 Solenoid Switch Assembly
| 9S***76 | Solenoid As | 1 |
7s3622 Electric Starting Motor Group--24 Volt--Type 1
| 7S***22 | Starting Motor Group-Electric; Electric Starting Motor Group | 1 |
4n3182 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 2 Of 3
| 4N***82 | Starting Motor Group-Electric; Electric Starting Motor Group-- Delco-Remy | 1 |
Electric Starting Motor (7s5410 N/S)--24 Volt
| 7S***10 | Starting Motor Group-Electric; Electric Starting Motor Group | 1 |
Electric Starting Motor (7s4090 N/S)--24 Volt
| 7S***90 | Starting Motor Group-Electric | 1 |
4n7752 Electric Starting Motor Group--Prestolite--24 Volt--Part 1 Of 2
| 4N***52 | Starting Motor Group-Electric; Electric Starting Motor Group --Prestolite | 1 |
2p2502 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 2 Of 2
| 2P***02 | Starting Motor Group-Electric | 1 |
3p6 Electric Starting Motor Group--Prestolite--24 Volt--Part 1 Of 2
| 3P***06 | Starting Motor Group-Electric; Electric Starting Motor Group-Prestolite | 1 |
4n3182 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 3 Of 3
| 4N***82 | Starting Motor Group-Electric; Electric Starting Motor Group-- Delco-Remy | 1 |
2p2502 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 1 Of 2
| 2P***02 | Starting Motor Group-Electric | 1 |
7s3622 Electric Starting Motor Group--24 Volt--Type 2
| 7S***22 | Starting Motor Group-Electric; Electric Starting Motor Group | 1 |
4n7752 Electric Starting Motor Group--Prestolite--24 Volt--Part 2 Of 2
| 4N***52 | Starting Motor Group-Electric; Electric Starting Motor Group --Prestolite | 1 |
4n3182 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 1 Of 3
| 4N***82 | Starting Motor Group-Electric; Electric Starting Motor Group-- Delco-Remy | 1 |
3p6 Electric Starting Motor Group--Prestolite--24 Volt--Part 2 Of 2
| 3P***06 | Starting Motor Group-Electric; Electric Starting Motor Group-Prestolite | 1 |
6n5123 Solenoid Switch Assembly--24 Volt
| 6N***23 | Switch As-Solenoid | 1 |
1p9181 Solenoid Switch Assembly
| 1P***81 | Switch As-Solenoid | 1 |
4n8985 Coolant Flow Switch Group
| 4N***85 | Switch Group | 1 |
Engine Arrangement
8s3874 Arrangement
| 2P***90 | Engine Ar | 1 |
| 2P***62 | Normalizing Arrangement; (See 3306 Engine 3n1 To 3n24132 Inclusive) | 1 |
| 8S***74 | Arrangement | 1 |
8s3875 Arrangement
| 2P***91 | Engine Ar | 1 |
| 2P***62 | Normalizing Arrangement; (See 3306 Engine 3n1 To 3n24132 Inclusive) | 1 |
| 8S***75 | Arrangement | 1 |
4n7361 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 2P***62 | Pump Group-Water; Water Pump Group | 1 |
4n7366 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
4n7373 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
4n7365 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
4n7364 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 2P***62 | Pump Group-Water; Water Pump Group | 1 |
4n3571 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 2P***62 | Pump Group-Water; Water Pump Group | 1 |
4n7363 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 2P***62 | Pump Group-Water; Water Pump Group | 1 |
4n7372 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
2p6788 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***74 | Torque Control | 1 |
6n0486 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
2p6791 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
2p6812 Engine Ar
| 1P***45 | Engine Decelerator Control | 1 |
| 1P***46 | Fuel Pump Housing And Governor | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
2p6800 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
2p6795 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
2p6802 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
2p6798 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
2p6796 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
2p6793 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
6n0482 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
2p6792 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
2p6808 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 2P***62 | Pump Group-Water; Water Pump Group | 1 |
4n4993 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 2P***62 | Pump Group-Water; Water Pump Group | 1 |
2p6801 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
2p6811 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
4n4463 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
4n4439 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 2P***61 | Pump Group-Water; Water Pump Group | 1 |
4n7367 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
2p6810 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
2p6803 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***80 | Turbocharger | 1 |
2p6789 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***74 | Torque Control | 1 |
4n4994 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 2P***62 | Pump Group-Water; Water Pump Group | 1 |
4n6521 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
6n0484 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
2p6794 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
2p6809 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
4n7374 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
2p6799 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
2p6790 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
4n5359 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
2p6804 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
2p6807 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 2P***62 | Pump Group-Water; Water Pump Group | 1 |
2p6806 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 2P***62 | Pump Group-Water; Water Pump Group | 1 |
2p6797 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
2p6805 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 2P***62 | Pump Group-Water; Water Pump Group | 1 |
6n0488 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
2p9637 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***52 | Turbocharger Group | 1 |
4n7368 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
4n8132 Engine Arrangement
| 2P***88 | Engine Ar | 1 |
| 4N***36 | Refrigerant Compressor Arrangement | 1 |
| 4N***61 | Basic Engine Arrangement | 1 |
2p8947 Arrangement
| 2P***04 | Engine Ar | 1 |
| 2P***43 | Trunnion Group | 1 |
| 2P***47 | Engine Arrangement | 1 |
4n7370 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
4n7377 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
1p32 Arrangement
| 1P***32 | Engine Arrangement | 1 |
| 2P***93 | Engine Ar | 1 |
| 2P***73 | Normalizing Arrangement; Normalizing Arrangement Engine Parts | 1 |
4n7371 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
3p0075 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***52 | Turbocharger Group | 1 |
1p9587 Engine Ar
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1P***81 | Flywheel Group; Flywheel Group | 1 |
4n7376 Engine Ar
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
| 1P***44 | Breather Group | 1 |
2p9573 Normalizing Arrangement
| 2P***22 | Crankshaft Group; Crankshaft Group | 1 |
| 2P***24 | Seal Group-Crankshaft; Crankshaft Seal Group | 1 |
| 2P***73 | Manifold Group-Exhaust | 1 |
2p9562 Normalizing Arrangement
| 2P***22 | Crankshaft Group; Crankshaft Group | 1 |
| 2P***73 | Manifold Group-Exhaust | 1 |
| 2P***46 | Air Lines Group | 1 |
This Chart Shows Various Vehicles Using 3306 Vehicular Engine Serial No. 3n1 To 3n24132 Followed By
Front Structure
Belt Tightener (2p9558 N/S)
| 2P***58 | Belt Tightener Group | 1 |
4n6050 Front Housing Cover Group
| 4N***50 | Cover Group | 1 |
Front Housing Cover (2p6528 N/S)
| 2P***28 | Cover Group-Front Housing; Front Housing Cover Group | 1 |
Front Housing Cover (2p6529 N/S)
| 2P***29 | Cover Group-Front Housing; Front Housing Cover Group | 1 |
4n5162 Front Housing Cover Group
| 4N***62 | Cover Group-Front Housing; Front Housing Cover Group | 1 |
Damper (3p17 N/S)
| 3P***17 | Damper | 1 |
Damper (4n3239 N/S)
| 4N***39 | Damper Group; Damper Group | 1 |
Damper (4n3238 N/S)
| 4N***38 | Damper Group; Damper Group | 1 |
Damper (4n4365 N/S)
| 4N***65 | Damper Group | 1 |
Damper (2p7838 N/S)
| 2P***38 | Damper Group; Damper Group | 1 |
Damper (2p2503 N/S)
| 2P***03 | Damper Group-Pulley & Cshft; Crankshaft And Pulley Damper Group | 1 |
Fan Drive (4n8537 N/S)
| 4N***37 | Drive Group-Fan; Fan Drive Group | 1 |
2p7831 Fan Drive Group
| 2P***31 | Drive Group-Fan; Fan Drive Group | 1 |
Support (2p7744 N/S)
| 2P***44 | Engine Support Group | 1 |
Support (4n3506 N/S)
| 4N***06 | Engine Support Group | 1 |
Fan Drive (3p18 N/S)
| 3P***18 | Fan Drive | 1 |
4n5122 Front Housing Fastener Group
| 4N***22 | Fastener Group-Front Housing; Front Housing Fastener Group | 1 |
2p6498 Front Housing Fastener Group
| 2P***98 | Fastener Group-Front Housing; Front Housing Fastener Group | 1 |
Front Gear (2p7782 N/S)--Timing
| 2P***82 | Front Gear Group | 1 |
2p6211 Front Gear Group--Timing
| 2P***11 | Front Gear Group; Front Gear Group-Timing | 1 |
Front Housing (2p6153 N/S)
| 2P***53 | Front Housing; Front Housing Group | 1 |
Front Gear (4n3271 N/S)--Timing
| 4N***71 | Gear Group-Front Timing; Front Timing Gear Group | 1 |
2p9642 Front Gear Group--Timing
| 2P***42 | Gear Group-Front Timing | 1 |
Front Housing (2p9641 N/S)
| 2P***41 | Housing Group-Front; Front Housing Group | 1 |
Pulley (4n6048 N/S)
| 4N***48 | Pulley; Pulley Group | 1 |
Pulley (2p8600 N/S)
| 2P***00 | Pulley | 1 |
Pulley (2p8158 N/S)
| 2P***58 | Pulley Group; Fan Drive Pulley Group | 1 |
Pulley (2p8217 N/S)
| 2P***17 | Pulley Group | 1 |
Pulley (4n9014 N/S)
| 4N***14 | Pulley Group | 1 |
Pulley (3p44 N/S)
| 3P***44 | Pulley Group | 1 |
Pulley (2p8213 N/S)
| 2P***13 | Pulley Group; Pulley Group (Crankshaft & Fan Drive) | 1 |
Pulley (2p8595 N/S)
| 2P***95 | Pulley Group | 1 |
Pulley (2p8601 N/S)
| 2P***01 | Pulley Group-Belt | 1 |
Pulley (4n3562 N/S)
| 4N***62 | Pulley Group-Crankshaft; Crankshaft Pulley Group | 1 |
Pulley (2p8599 N/S)
| 2P***99 | Pulley Group-Crankshaft | 1 |
Pulley (2p8602 N/S)
| 2P***02 | Pulley Group-Fan Drive | 1 |
Support (2p7750 N/S)
| 2P***50 | Support | 1 |
Support (2p7746 N/S)
| 2P***46 | Support | 1 |
Support (2p7743 N/S)
| 2P***43 | Support Group | 1 |
Support (2p8856 N/S)
| 2P***56 | Support Group; Engine Support Group | 1 |
Support (2p7753 N/S)
| 2P***53 | Support Group-Engine; Front Engine Support Group | 1 |
Support (2p7748 N/S)
| 2P***48 | Support Group-Engine; Engine Support Group | 1 |
Support (2p7749 N/S)
| 2P***49 | Support Group-Engine; Engine Support Group | 1 |
Support (2p7752 N/S)
| 2P***52 | Support Group-Engine; Engine Support Group | 1 |
Support (1p9586 N/S)
| 1P***86 | Support Group-Engine; Engine Support Group | 1 |
Support (2p7751 N/S)
| 2P***51 | Support Group-Engine; Engine Support Group | 1 |
Support (2p7745 N/S)
| 2P***45 | Support Group-Engine; Engine Support Group | 1 |
Support (4n6051 N/S)
| 4N***51 | Support Group-Engine; Engine Support Group | 1 |
Support (2p7747 N/S)
| 2P***47 | Support Group-Engine; Engine Support Group | 1 |
2p8943 Trunnion Group
| 2P***43 | Trunnion Group | 1 |
2p6246 Trunnion Group
| 2P***46 | Trunnion Group-Engine | 1 |
Fuel System And Governor
6n306 Governor And Fuel Injection Pump Group
| 6N***06 | Governor And Fuel Injection Pump Group | 1 |
6n297 Governor And Fuel Injection Pump Group
| 6N***97 | Governor And Fuel Injection Pump Group | 1 |
6n300 Governor And Fuel Injection Pump Group
| 6N***00 | Governor And Fuel Injection Pump Group; Governor And Fuel Injection Pump Group | 1 |
6n298 Governor And Fuel Injection Pump Group
| 6N***98 | Governor And Fuel Injection Pump Group | 1 |
6n301 Governor And Fuel Injection Pump Group
| 6N***01 | Governor And Fuel Injection Pump Group | 1 |
6n308 Governor And Fuel Injection Pump Group
| 6N***08 | Governor And Fuel Injection Pump Group | 1 |
6n311 Governor And Fuel Injection Pump Group
| 6N***11 | Governor And Fuel Injection Pump Group | 1 |
6n295 Governor And Fuel Injection Pump Group
| 6N***95 | Governor And Fuel Injection Pump Group; Governor And Fuel Injection Pump Group | 1 |
Governor And Fuel Injection Pump (6n1241 N/S)--Type 1
| 6N***41 | Governor And Fuel Injection Pump Group | 1 |
6n312 Governor And Fuel Injection Pump Group
| 6N***12 | Governor And Fuel Injection Pump Group | 1 |
6n303 Governor And Fuel Injection Pump Group
| 6N***03 | Governor And Fuel Injection Pump Group | 1 |
Governor And Fuel Injection Pump (6n1241 N/S)--Type 2
| 6N***41 | Governor And Fuel Injection Pump Group | 1 |
6n293 Governor And Fuel Injection Pump Group
| 6N***93 | Governor And Fuel Injection Pump Group | 1 |
6n296 Governor And Fuel Injection Pump Group
| 6N***96 | Governor And Fuel Injection Pump Group | 1 |
Governor And Fuel Injection Pump (7s6740 N/S)
| 7S***40 | Governor And Fuel Injection Pump Group | 1 |
6n304 Governor And Fuel Injection Pump Group
| 6N***04 | Governor And Fuel Injection Pump Group | 1 |
Tachometer Drive (6n1399 N/S)
| 6N***99 | Tachometer Drive Group | 1 |
4n4751 Tachometer Drive Group
| 4N***51 | Tachometer Drive Group | 1 |
Accessory Drive (2p7712 N/S)
| 2P***12 | Accessory Drive | 1 |
Accessory Drive (3n3287 N/S)
| 3N***87 | Accessory Drive Group | 1 |
9n867 Fuel Ratio Control Group
| 9N***67 | Control Group-Fuel Ratio | 1 |
Fuel Ratio Control (6n3047 N/S)
| 6N***47 | Control Group-Fuel Ratio | 1 |
6n4654 Fuel Ratio Control Group
| 6N***54 | Control Group-Fuel Ratio | 1 |
Torque Control (4n9240 N/S)
| 4N***40 | Control Group-Torque | 1 |
Torque Control (6n3586 N/S)
| 6N***86 | Control Group-Torque | 1 |
6n3609 Torque Control Group
| 6N***09 | Control Group-Torque | 1 |
6n3630 Torque Control Group
| 6N***30 | Control Group-Torque | 1 |
Governor Cover (4n4510 N/S)
| 4N***10 | Cover Group-Governor; Governor Cover Group | 1 |
9s4488 Tachometer Drive Group
| 9S***88 | Drive Group-Meter | 1 |
Tachometer Drive (4n7249 N/S)
| 4N***49 | Drive Group-Tachometer | 1 |
Engine Decelerator Control (1p45 N/S)
| 1P***45 | Engine Decelerator Control | 1 |
Engine Decelerator Control (6n1239 N/S)
| 6N***39 | Engine Decelerator Control Group | 1 |
7l261 Fuel Filter And Priming Pump Group
| 7L***61 | Filter & Prm Group | 1 |
1p2299 Fuel Filter Assembly
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
4n3303 Fuel Filter Group
| 4N***03 | Filter Group-Fuel; Fuel Filter Group | 1 |
Fuel Filter (4n9882 N/S)
| 4N***82 | Filter Group-Fuel; Fuel Filter Group | 1 |
4n1981 Fuel Filter Group
| 4N***81 | Filter Group-Fuel | 1 |
8h4681 Primary Fuel Filter Group
| 8H***81 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
Primary Fuel Filter (1p6835 N/S)
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
Fuel Filter (5s9665 N/S)
| 5S***65 | Fuel Filter | 1 |
Fuel Filter (6n1750 N/S)
| 6N***50 | Fuel Filter; Fuel Filter Group | 1 |
5s9666 Fuel Filter Group
| 5S***66 | Fuel Filter Group | 1 |
Fuel Filter (8s9311 N/S)
| 8S***11 | Fuel Filter Group | 1 |
Fuel Filter (4n3599 N/S)
| 4N***99 | Fuel Filter Group | 1 |
Fuel Filter Lines (6n1210 N/S)
| 6N***10 | Fuel Filter Lines; Fuel Filter Lines Group | 1 |
Fuel Injection Lines (2p7456 N/S)
| 2P***56 | Fuel Injection Lines | 1 |
Fuel Injection Lines (2p7458 N/S)
| 2P***58 | Fuel Injection Lines | 1 |
Fuel Injection Lines (4n3376 N/S)
| 4N***76 | Fuel Injection Lines; Fuel Injection Lines Group | 1 |
Fuel Injection Lines (6n1057 N/S)
| 6N***57 | Fuel Injection Lines; Fuel Injection Lines Group | 1 |
Fuel Injection Lines (2p7459 N/S)
| 2P***59 | Fuel Injection Lines | 1 |
Fuel Injection Lines (2p7457 N/S)
| 2P***57 | Fuel Injection Lines | 1 |
Fuel Injection Lines (4n8007 N/S)
| 4N***07 | Fuel Injection Lines | 1 |
Fuel Injection Lines (4n3649 N/S)
| 4N***49 | Fuel Injection Lines Group | 1 |
Fuel Injection Lines (4n6033 N/S)
| 4N***33 | Fuel Injection Lines Group | 1 |
Fuel Injection Lines (6n1637 N/S)
| 6N***37 | Fuel Injection Lines Group | 1 |
Fuel Injection Lines (6n572 N/S)
| 6N***72 | Fuel Injection Lines Group; Fuel Injection Lines Group | 1 |
Fuel Injection Lines (4n9947 N/S)
| 4N***47 | Fuel Injection Lines Group | 1 |
Fuel Priming Pump (2p7709 N/S)
| 2P***09 | Fuel Priming Pump | 1 |
Fuel Priming Pump (5s2100 N/S)
| 5S***00 | Fuel Priming Pump | 1 |
7s1251 Fuel Priming Pump Group--Type 2
| 7S***51 | Fuel Priming Pump Group | 1 |
7s1251 Fuel Priming Pump Group--Type 1
| 7S***51 | Fuel Priming Pump Group | 1 |
Governor And Fuel Injection Pump (5s9571 N/S)
| 5S***71 | Fuel Pump Housing And Governor | 1 |
Governor And Fuel Injection Pump (5s9075 N/S)
| 5S***75 | Fuel Pump Housing And Governor | 1 |
Governor And Fuel Injection Pump (9s5785 N/S)
| 9S***85 | Fuel Pump Housing And Governor | 1 |
Governor And Fuel Injection Pump (8s110 N/S)
| 8S***10 | Fuel Pump Housing And Governor | 1 |
Governor And Fuel Injection Pump (1p46 N/S)
| 1P***46 | Fuel Pump Housing And Governor | 1 |
Governor And Fuel Injection Pump (7s9337 N/S)
| 7S***37 | Fuel Pump Housing And Governor | 1 |
Governor And Fuel Injection Pump (9s5979 N/S)
| 9S***79 | Fuel Pump Housing And Governor | 1 |
9s2296 Governor And Fuel Injection Pump Group
| 9S***96 | Fuel Pump Housing And Governor Group | 1 |
5s9076 Fuel Pump Housing Group
| 5S***76 | Fuel Pump Housing Group | 1 |
Fuel Ratio Control (4n5223 N/S)
| 4N***23 | Fuel Ratio Control | 1 |
Fuel Ratio Control (8s8951 N/S)
| 8S***51 | Fuel Ratio Control; Air Fuel Ratio Control Group | 1 |
4n4900 Fuel Ratio Control Group
| 4N***00 | Fuel Ratio Control Group | 1 |
4n5063 Fuel Ratio Control Group
| 4N***63 | Fuel Ratio Control Group | 1 |
Fuel Transfer Pump (2p6859 N/S)
| 2P***59 | Fuel Transfer Pump | 1 |
4n4873 Fuel Transfer Pump Group (7s5108 N/S)
| 4N***73 | Fuel Transfer Pump Group | 1 |
7s4430 Fuel Transfer Pump Group
| 7S***30 | Fuel Transfer Pump Group | 1 |
7s5445 Fuel Transfer Pump Group (7s5108 N/S)
| 7S***45 | Fuel Transfer Pump Group | 1 |
4n4878 Fuel Transfer Pump Group (7l247 N/S)
| 4N***78 | Fuel Transfer Pump Group | 1 |
7l543 Fuel Transfer Pump Group (7l247 N/S)
| 7L***43 | Fuel Transfer Pump Group | 1 |
4n1836 Governor And Fuel Injection Pump Group--Part 4 Of 4
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
6n3472 Governor And Fuel Injection Pump Group
| 6N***72 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (4n1836 N/S)--Part 3 Of 4--Type 2
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (4n1836 N/S)--Part 3 Of 4--Type 3
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (6n2840 N/S) -- Type 1
| 6N***40 | Gov & Fuel Inj Pump Group; Governor & Fuel Injection Pump Group | 1 |
6n305 Governor And Fuel Injection Pump Group
| 6N***05 | Gov & Fuel Inj Pump Group; Governor & Fuel Injection Pump Group | 1 |
Governor And Fuel Injection Pump (4n1836 N/S)--Part 4 Of 4--Type 2
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
6n294 Governor And Fuel Injection Pump Group
| 6N***94 | Gov & Fuel Inj Pump Group; Governor And Fuel Injection Pump Group | 1 |
Governor And Fuel Injection Pump (4n1836 N/S)--Part 3 Of 4--Type 1
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
4n1836 Governor And Fuel Injection Pump Group--Part 1 Of 4
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (4n1836 N/S)--Part 4 Of 4--Type 1
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
6n299 Governor And Fuel Injection Pump Group
| 6N***99 | Gov & Fuel Inj Pump Group; Governor And Fuel Injection Pump Group | 1 |
6n268 Governor And Fuel Injection Pump Group--Part 1 Of 2--Type 2
| 6N***68 | Gov & Fuel Inj Pump Group | 1 |
6n263 Governor And Fuel Injection Pump Group--Type 2
| 6N***63 | Gov & Fuel Inj Pump Group | 1 |
6n268 Governor And Fuel Injection Pump Group--Part 1 Of 2--Type 3
| 6N***68 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (4n1836 N/S)--Part 1 Of 4--Type 2
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (4n1836 N/S)--Part 1 Of 4--Type 1
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (6n268 N/S)--Part 1 Of 2--Type 1
| 6N***68 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (6n268 N/S)--Part 2 Of 2--Type 1
| 6N***68 | Gov & Fuel Inj Pump Group | 1 |
6n268 Governor And Fuel Injection Pump Group--Part 2 Of 2--Type 2
| 6N***68 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (4n1836 N/S)--Part 2 Of 4--Type 3
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (4n1836 N/S)--Part 4 Of 4--Type 3
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
4n1836 Governor And Fuel Injection Pump Group--Part 2 Of 4
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
6n260 Governor And Fuel Injection Pump Group--Type 2
| 6N***60 | Gov & Fuel Inj Pump Group | 1 |
6n263 Governor And Fuel Injection Pump Group--Type 3
| 6N***63 | Gov & Fuel Inj Pump Group | 1 |
6n2840 Governor And Fuel Injection Pump Group--Type 2
| 6N***40 | Gov & Fuel Inj Pump Group; Governor & Fuel Injection Pump Group | 1 |
6n268 Governor And Fuel Injection Pump Group--Part 2 Of 2--Type 3
| 6N***68 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (4n1836 N/S)--Part 2 Of 4--Type 1
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (6n261 N/S) -- Type 1
| 6N***61 | Gov & Fuel Inj Pump Group | 1 |
6n263 Governor And Fuel Injection Pump Group--Type 1
| 6N***63 | Gov & Fuel Inj Pump Group | 1 |
6n261 Governor And Fuel Injection Pump Group--Type 2
| 6N***61 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (4n1836 N/S)--Part 1 Of 4--Type 3
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (4n1836 N/S)--Part 2 Of 4--Type 2
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
4n1836 Governor And Fuel Injection Pump Group--Part 3 Of 4
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
Governor And Fuel Injection Pump (6n260 N/S)--Type 1
| 6N***60 | Gov & Fuel Inj Pump Group | 1 |
4n2844 Governor And Fuel Injection Pump Group
| 4N***44 | Gov & Fuel Inj Pump Group | 1 |
Governor And Decelerator Control (9s7053 N/S)
| 9S***53 | Governor And Decelerator Control | 1 |
Governor And Fuel Injection Pump (6n1261 N/S)
| 6N***61 | Governor And Fuel Injection Pump | 1 |
Governor And Fuel Injection Pump (6n256 N/S)
| 6N***56 | Governor And Fuel Injection Pump | 1 |
Governor And Fuel Injection Pump (4n4673 N/S)
| 4N***73 | Governor And Fuel Injection Pump | 1 |
9s6701 Governor Group--Part 1 Of 2--Type 1
| 9S***01 | Governor Group | 1 |
7s9332 Governor Group--Part 2 Of 2--Type 2
| 7S***32 | Governor Group | 1 |
8s6536 Governor Group--Part 2 Of 2--Type 1
| 8S***36 | Governor Group | 1 |
7s9332 Governor Group--Part 1 Of 2--Type 1
| 7S***32 | Governor Group | 1 |
9s5740 Governor Group--Part 1 Of 2--Type 2
| 9S***40 | Governor Group | 1 |
8s6536 Governor Group--Part 1 Of 2--Type 1
| 8S***36 | Governor Group | 1 |
9s5740 Governor Group--Part 1 Of 2--Type 1
| 9S***40 | Governor Group | 1 |
9s5740 Governor Group--Part 2 Of 2--Type 2
| 9S***40 | Governor Group | 1 |
9s5740 Governor Group--Part 2 Of 2--Type 1
| 9S***40 | Governor Group | 1 |
7s9332 Governor Group--Part 2 Of 2--Type 1
| 7S***32 | Governor Group | 1 |
8s9442 Governor Group--Part 2 Of 2--Type 1
| 8S***42 | Governor Group | 1 |
1p47 Governor Group--Part 1 Of 2--Type 1
| 1P***47 | Governor Group | 1 |
9s6700 Governor Group--Part 1 Of 2--Type 1
| 9S***00 | Governor Group | 1 |
7s9333 Governor Group--Part 1 Of 2--Type 1
| 7S***33 | Governor Group | 1 |
7s9333 Governor Group--Part 1 Of 2--Type 2
| 7S***33 | Governor Group | 1 |
1p47 Governor Group--Part 2 Of 2--Type 2
| 1P***47 | Governor Group | 1 |
8s6536 Governor Group--Part 1 Of 2--Type 3
| 8S***36 | Governor Group | 1 |
9s6700 Governor Group--Part 2 Of 2--Type 1
| 9S***00 | Governor Group | 1 |
8s9442 Governor Group--Part 1 Of 2--Type 2
| 8S***42 | Governor Group | 1 |
8s9442 Governor Group--Part 2 Of 2--Type 2
| 8S***42 | Governor Group | 1 |
8s9442 Governor Group--Part 1 Of 2--Type 1
| 8S***42 | Governor Group | 1 |
9s6701 Governor Group--Part 2 Of 2--Type 1
| 9S***01 | Governor Group | 1 |
8s6536 Governor Group--Part 2 Of 2--Type 2
| 8S***36 | Governor Group | 1 |
8s6536 Governor Group--Part 2 Of 2--Type 3
| 8S***36 | Governor Group | 1 |
7s9332 Governor Group--Part 2 Of 2--Type 3
| 7S***32 | Governor Group | 1 |
9s6701 Governor Group--Part 1 Of 2--Type 2
| 9S***01 | Governor Group | 1 |
9s6700 Governor Group--Part 1 Of 2--Type 2
| 9S***00 | Governor Group | 1 |
1p47 Governor Group--Part 1 Of 2--Type 2
| 1P***47 | Governor Group | 1 |
1p47 Governor Group--Part 2 Of 2--Type 1
| 1P***47 | Governor Group | 1 |
7s9332 Governor Group--Part 1 Of 2--Type 3
| 7S***32 | Governor Group | 1 |
9s6700 Governor Group--Part 2 Of 2--Type 2
| 9S***00 | Governor Group | 1 |
7s9333 Governor Group--Part 2 Of 2--Type 2
| 7S***33 | Governor Group | 1 |
8s6536 Governor Group--Part 1 Of 2--Type 2
| 8S***36 | Governor Group | 1 |
7s9332 Governor Group--Part 1 Of 2--Type 2
| 7S***32 | Governor Group | 1 |
7s9333 Governor Group--Part 2 Of 2--Type 1
| 7S***33 | Governor Group | 1 |
9s6701 Governor Group--Part 2 Of 2--Type 2
| 9S***01 | Governor Group | 1 |
8s6099 Torque Control Group--Type 2
| 8S***99 | Governor Torque Spring | 1 |
Torque Control (9s9028 N/S)
| 9S***28 | Governor Torque Spring | 1 |
Torque Control (8s6099 N/S) - Type 1
| 8S***99 | Governor Torque Spring | 1 |
Torque Control (8s5050 N/S)
| 8S***50 | Governor Torque Spring | 1 |
8s5042 Torque Control Group--Type 2--Field Installation
| 8S***42 | Governor Torque Spring | 1 |
Torque Control (4n3650 N/S)
| 4N***50 | Governor Torque Spring | 1 |
Torque Control (9l5382 N/S)
| 9L***82 | Governor Torque Spring | 1 |
Torque Control (1p5007 N/S)
| 1P***07 | Governor Torque Spring | 1 |
Torque Control (8s5042 N/S)--Type 1
| 8S***42 | Governor Torque Spring | 1 |
Torque Control (9s5546 N/S) - Type 1
| 9S***46 | Governor Torque Spring | 1 |
9s5546 Torque Control Group--Type 2
| 9S***46 | Governor Torque Spring | 1 |
8l8682 Torque Control Group
| 8L***82 | Governor Torque Spring Group | 1 |
4n8054 Fuel Injection Lines Group
| 4N***54 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
Fuel Injection Lines (2p8916 N/S)
| 2P***16 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
4n3336 Service Meter Group
| 4N***36 | Meter Group-Service; Service Meter Group | 1 |
Service Meter (6n490 N/S)
| 6N***90 | Meter Group-Service; Service Meter Group | 1 |
4n6656 Service Meter Group
| 4N***56 | Meter Group-Service; Service Meter Group | 1 |
Primary Fuel Filter (4n5121 N/S)
| 4N***21 | Primary Fuel Filter | 1 |
9h2256 Pump Assembly
| 9H***56 | Pump Assembly | 1 |
Fuel Priming Pump (4n3287 N/S)
| 4N***87 | Pump Group-Fuel Priming; Pump Group-Fuel Priming | 1 |
Fuel Priming Pump (4n9625 N/S)
| 4N***25 | Pump Group-Fuel Priming; Fuel Priming Pump Group | 1 |
Fuel Priming Pump (4n4314 N/S)
| 4N***14 | Pump Group-Fuel Priming; Fuel Priming Pump Group | 1 |
7s4429 Fuel Transfer Pump Group
| 7S***29 | Pump Group-Fuel Transfer; Fuel Transfer Pump Group | 1 |
4n4864 Fuel Transfer Pump Group
| 4N***64 | Pump Group-Fuel Transfer | 1 |
Governor And Fuel Injection Pump (4n4016 N/S)
| 4N***16 | Pump Group-Governor &-A | 1 |
Torque Control (9s3312 N/S)
| 9S***12 | Rack Stop Group | 1 |
Service Meter (9s8923 N/S)
| 9S***23 | Service Meter | 1 |
Service Meter (9s9978 N/S)
| 9S***78 | Service Meter | 1 |
Service Meter (9s5141 N/S)
| 9S***41 | Service Meter | 1 |
9s8921 Service Meter Group
| 9S***21 | Service Meter | 1 |
Service Meter (9s8732 N/S)
| 9S***32 | Service Meter | 1 |
Service Meter (8s6865 N/S)
| 8S***65 | Service Meter | 1 |
Service Meter (9s7993 N/S)
| 9S***93 | Service Meter | 1 |
Service Meter (8s3688 N/S)
| 8S***88 | Service Meter; Service Meter Group | 1 |
9s5730 Service Meter And Tachometer Drive Group
| 9S***30 | Service Meter And Tachometer Drive Group | 1 |
Service Meter Drive (9s7127 N/S)
| 9S***27 | Service Meter Drive | 1 |
4n3554 Service Meter Drive Group
| 4N***54 | Service Meter Drive Group | 1 |
4n4026 Service Meter Group
| 4N***26 | Service Meter Group; Service Meter Group | 1 |
Service Meter (4n3337 N/S)
| 4N***37 | Service Meter Group | 1 |
9s7128 Service Meter Group
| 9S***28 | Service Meter Group | 1 |
Service Meter (4n8064 N/S)
| 4N***64 | Service Meter Group | 1 |
4n4025 Service Meter Group
| 4N***25 | Service Meter Group | 1 |
9l9345 Torque Control Group
| 9L***45 | Spring Group-Torque | 1 |
2s9519 Torque Control Group
| 2S***19 | Stop Group-Rack | 1 |
Torque Control (1p6474 N/S)
| 1P***74 | Torque Control | 1 |
Torque Control (4n9302 N/S)
| 4N***02 | Torque Control | 1 |
1p6474 Torque Control Group--Type 2
| 1P***74 | Torque Control | 1 |
Torque Control (4n283 N/S)
| 4N***83 | Torque Control | 1 |
Torque Control (2p8592 N/S)
| 2P***92 | Torque Control | 1 |
Torque Control (4n8924 N/S)--Type 1
| 4N***24 | Torque Control | 1 |
Torque Control (4n8924 N/S)--Type 2
| 4N***24 | Torque Control | 1 |
Torque Control (6n2922 N/S)
| 6N***22 | Torque Control | 1 |
6n3610 Torque Control Group
| 6N***10 | Torque Control Group | 1 |
Torque Control (6n509 N/S)
| 6N***09 | Torque Control Group | 1 |
Torque Control (6n453 N/S)
| 6N***53 | Torque Control Group | 1 |
4n9193 Torque Control Group--Type 2
| 4N***93 | Torque Control Group | 1 |
Torque Control (6n534 N/S)
| 6N***34 | Torque Control Group | 1 |
Torque Control (6n581 N/S)
| 6N***81 | Torque Control Group | 1 |
Torque Control (4n9193 N/S)
| 4N***93 | Torque Control Group | 1 |
Torque Control (4n9193 N/S) - Type 2
| 4N***93 | Torque Control Group | 1 |
Torque Control (6n454 N/S)
| 6N***54 | Torque Control Group | 1 |
Intake And Exhaust System
2p1830 Air Compressor Group
| 2P***30 | Air Compressor Group | 1 |
Air Compressor (2p9614 N/S)
| 2P***14 | Air Compressor Group | 1 |
2p7800 Air Compressor Group
| 2P***00 | Air Compressor Group | 1 |
2p7794 Air Compressor Group
| 2P***94 | Air Compressor Group | 1 |
Air Compressor (2p7795 N/S)
| 2P***95 | Air Compressor Group; Air Compressor Group | 1 |
2p7801 Air Compressor Group
| 2P***01 | Air Compressor Group; Air Compressor Group | 1 |
Air Compressor (2p7801 N/S)
| 2P***01 | Air Compressor Group; Air Compressor Group | 1 |
Air Compressor (2p9613 N/S)
| 2P***13 | Air Compressor Group; Air Compressor Group | 1 |
2p7798 Air Compressor Group
| 2P***98 | Air Compressor Group | 1 |
Air Compressor (2p7798 N/S)
| 2P***98 | Air Compressor Group | 1 |
Air Compressor Lines (2p7799 N/S)
| 2P***99 | Air Compressor Lines; Air Compressor Lines Group | 1 |
Air Lines (4n3616 N/S)
| 4N***16 | Air Lines | 1 |
Air Lines (2p6842 N/S)
| 2P***42 | Air Lines; Air Lines Group | 1 |
2p6852 Air Lines Group
| 2P***52 | Air Lines; Air Lines Group | 1 |
Air Lines (4n6071 N/S)
| 4N***71 | Air Lines; Air Lines Group | 1 |
Air Lines (2p6845 N/S)
| 2P***45 | Air Lines | 1 |
Air Lines (2p6849 N/S)
| 2P***49 | Air Lines Group; Air Lines Group | 1 |
Air Lines (2p8876 N/S)
| 2P***76 | Air Lines Group | 1 |
Air Lines (2p6847 N/S)--Type 2
| 2P***47 | Air Lines Group | 1 |
Air Lines (2p6850 N/S)
| 2P***50 | Air Lines Group | 1 |
4n4460 Air Lines Group
| 4N***60 | Air Lines Group | 1 |
Air Lines (2p6848 N/S)
| 2P***48 | Air Lines Group | 1 |
Air Lines (2p6851 N/S)
| 2P***51 | Air Lines Group | 1 |
Air Lines (2p6847 N/S)--Type 1
| 2P***47 | Air Lines Group | 1 |
Air Lines (2p6846 N/S)
| 2P***46 | Air Lines Group | 1 |
Exhaust Pipe (4n5504 N/S)
| 4N***04 | Exhaust Pipe | 1 |
Exhaust Pipe (2p7352 N/S)
| 2P***52 | Exhaust Pipe Group | 1 |
Exhaust Manifold Fastener (4n9586 N/S)
| 4N***86 | Fastener Group-Exhaust Manifold; Exhaust Manifold Fastener Group | 1 |
Exhaust Manifold Fastener (2p6534 N/S)
| 2P***34 | Fastener Group-Exhaust Manifold; Exhaust Manifold Fastener Group | 1 |
Air Lines (2p6838 N/S)
| 2P***38 | Lines Group-Air; Air Lines Group | 1 |
Air Lines (2p6841 N/S)
| 2P***41 | Lines Group-Air; Air Lines Group | 1 |
Air Lines (1p9585 N/S)
| 1P***85 | Lines Group-Air | 1 |
Air Compressor Lines (2p7797 N/S)
| 2P***97 | Lines Group-Air Compressor; Air Compressor Lines Group | 1 |
2p7802 Air Compressor Lines Group
| 2P***02 | Lines Group-Air Compressor; Air Compressor Lines Group | 1 |
Turbocharger Oil Lines (4n4625 N/S)
| 4N***25 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
4n3333 Turbocharger Oil Lines Group
| 4N***33 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
Turbocharger Oil Lines (2p7315 N/S)
| 2P***15 | Lines Group-Turbocharger Oil | 1 |
Turbocharger Oil Lines (9l5801 N/S)
| 9L***01 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
2p6574 Exhaust Manifold Group
| 2P***74 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
2p6572 Exhaust Manifold Group
| 2P***72 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
Exhaust Manifold (9l5805 N/S)
| 9L***05 | Manifold Group-Exhaust | 1 |
Exhaust Manifold (2p6573 N/S)
| 2P***73 | Manifold Group-Exhaust | 1 |
Exhaust Pipe (2p7351 N/S)
| 2P***51 | Pipe Group-Exhaust; Exhaust Pipe Group | 1 |
1p4280 Turbocharger Group
| 1P***80 | Turbocharger | 1 |
9s8997 Turbocharger Assembly (9s5791 N/S--Type 1)
| 9S***97 | Turbocharger Assembly | 1 |
8s9234 Turbocharger Assembly (5s9584 N/S)
| 8S***34 | Turbocharger Assembly | 1 |
1p286 Turbocharger Assembly (9s5994 N/S)
| 1P***86 | Turbocharger Assembly | 1 |
8s9237 Turbocharger Assembly (7s1701 N/S)
| 8S***37 | Turbocharger Assembly | 1 |
8s8198 Turbocharger Assembly (8s8200 N/S)
| 8S***98 | Turbocharger Group | 1 |
7s1701 Turbocharger Group
| 7S***01 | Turbocharger Group | 1 |
1p9373 Turbocharger Group (1p9552 N/S)
| 1P***73 | Turbocharger Group | 1 |
4n9553 Turbocharger Assembly (9s5791 N/S--Type 2)
| 4N***53 | Turbocharger Group | 1 |
4n9618 Turbocharger Group
| 4N***18 | Turbocharger Group | 1 |
4n9555 Turbocharger Group (1p9552 N/S)
| 4N***55 | Turbocharger Group | 1 |
8s8039 Turbocharger Assembly
| 8S***39 | Turbocharger Group | 1 |
Turbocharger (5s9584 N/S)
| 5S***84 | Turbocharger Group | 1 |
4n9554 Turbocharger Group--Replaced By 4n9618 Shown On Page 171
| 4N***54 | Turbocharger Group | 1 |
4n9541 Turbocharger Assembly (9s5994 N/S)
| 4N***41 | Turbocharger Group | 1 |
Turbocharger (9l5802 N/S)
| 9L***02 | Turbocharger Group; Turbocharger Group | 1 |
9l5345 Turbocharger Group
| 9L***45 | Turbocharger Group | 1 |
Turbocharger Oil Lines (2p7316 N/S)
| 2P***16 | Turbocharger Oil Lines | 1 |
6n2257 Turbocharger Oil Lines Group
| 6N***57 | Turbocharger Oil Lines Group | 1 |
Lower Structure
Oil Pan Fastener (2p6200 N/S)
| 2P***00 | Fastener Group-Oil Pan; Fastener Gp-Engine Oil Pan | 1 |
Oil Pan Fastener (2p6206 N/S)
| 2P***06 | Fastener Group-Oil Pan; Oil Pan Fastener Group | 1 |
Oil Pan Fastener (2p6199 N/S)
| 2P***99 | Fastener Group-Oil Pan; Oil Pan Fastener Group | 1 |
Oil Level Gauge (2p9609 N/S)
| 2P***09 | Gauge Group-Oil Level (Dipstick) | 1 |
2p6493 Oil Level Gauge Group
| 2P***93 | Gauge Group-Oil Level (Dipstick); -Engine | 1 |
Oil Level Gauge (2p9559 N/S)
| 2P***59 | Gauge Group-Oil Level (Dipstick) | 1 |
Oil Level Gauge (4n6059 N/S)
| 4N***59 | Gauge Group-Oil Level (Dipstick) | 1 |
Oil Level Gauge (2p6492 N/S)
| 2P***92 | Oil Level Gauge | 1 |
Oil Pan (4n6057 N/S)
| 4N***57 | Pan Group-Oil; Oil Pan Group | 1 |
Oil Pan (2p6174 N/S)
| 2P***74 | Pan Group-Oil; Oil Pan Group | 1 |
Oil Pan (2p6152 N/S)
| 2P***52 | Pan Group-Oil; Oil Pan Group | 1 |
Oil Pan (2p9647 N/S)
| 2P***47 | Pan Group-Oil; Oil Pan Group | 1 |
Lubrication System
Oil Filler (4n5140 N/S)
| 4N***40 | Oil Filler Group; Oil Filler Group | 1 |
Oil Filler (4n5141 N/S)
| 4N***41 | Oil Filler Group | 1 |
Oil Filler (4n5138 N/S)
| 4N***38 | Oil Filler Group | 1 |
Breather (1p4244 N/S)
| 1P***44 | Breather Group | 1 |
Oil Filler (4n4817 N/S)
| 4N***17 | Filler Group-Oil; Oil Filler Group | 1 |
Oil Filler (4n5139 N/S)
| 4N***39 | Filler Group-Oil | 1 |
Oil Filler (4n4791 N/S)
| 4N***91 | Filler Group-Oil; Oil Filler Group | 1 |
Oil Filler (2p6855 N/S)
| 2P***55 | Filler Group-Oil | 1 |
Oil Filler (4n6066 N/S)
| 4N***66 | Filler Group-Oil; Oil Filler Group | 1 |
Oil Filter (2p6475 N/S)
| 2P***75 | Filter Group-Engine Oil; Oil Filter Group (10z1 ~ 10z7023) | 1 |
Oil Filter (2p6525 N/S)
| 2P***25 | Filter Group-Oil | 1 |
Fumes Disposal (2p7446 N/S)
| 2P***46 | Fumes Disposal | 1 |
Fumes Disposal (4n3325 N/S)
| 4N***25 | Fumes Disposal Group; Fumes Disposal Group | 1 |
Fumes Disposal (3n3392 N/S)
| 3N***92 | Fumes Disposal Group; Fumes Disposal Group | 1 |
Fumes Disposal (2p7447 N/S)
| 2P***47 | Fumes Disposal Group | 1 |
Oil Lines (2p6109 N/S)
| 2P***09 | Lines Group-Engine Oil; Engine Oil Lines Group | 1 |
Oil Lines (4n9718 N/S)
| 4N***18 | Lines Group-Engine Oil | 1 |
Oil Lines (2p6861 N/S)
| 2P***61 | Lines Group-Engine Oil; Engine Oil Lines Group | 1 |
Oil Lines (2p6105 N/S)
| 2P***05 | Lines Group-Engine Oil; Engine Oil Lines Group | 1 |
Oil Filler (2p6856 N/S)
| 2P***56 | Oil Filler | 1 |
Oil Filter (2p916 N/S)
| 2P***16 | Oil Filter Group | 1 |
Oil Lines (4n3694 N/S)
| 4N***94 | Oil Lines | 1 |
2p1785 Gear Pump Group
| 2P***85 | Pump Group-Engine Oil | 1 |
Oil Pump (2p1784 N/S)
| 2P***84 | Pump Group-Engine Oil; Engine Oil Pump Group | 1 |
2p7830 Gear Pump Group
| 2P***30 | Pump Group-Gear | 1 |
Oil Pump (2p6537 N/S)
| 2P***37 | Pump Group-Oil; Engine Oil Pump Group | 1 |
Rear Structure
Rear Gear (2p8161 N/S)--Accessory Drive
| 2P***61 | Drive Group-Accessory; Rear Gear Group-Accessory Drive | 1 |
Rear Gear (2p8162 N/S)--Accessory Drive
| 2P***62 | Drive Group-Accessory; Dowel - Frame To Flywheel Housing | 1 |
Rear Gear (2p8159 N/S)--Accessory Drive
| 2P***59 | Drive Group-Accessory; Rear Gear Group Accessory Drive | 1 |
Flywheel (7s3207 N/S)
| 7S***07 | Flywheel | 1 |
Flywheel (2p9646 N/S)
| 2P***46 | Flywheel; Flywheel Group | 1 |
Flywheel (1p9581 N/S)
| 1P***81 | Flywheel Group; Flywheel Group | 1 |
Flywheel (8s1494 N/S)
| 8S***94 | Flywheel Group; Flywheel Group | 1 |
7s7874 Flywheel Group
| 7S***74 | Flywheel Group; Flywheel Group | 1 |
2p2505 Flywheel Group
| 2P***05 | Flywheel Group; Flywheel Group | 1 |
Flywheel (7s7877 N/S)
| 7S***77 | Flywheel Group; Flywheel Group | 1 |
Flywheel (9s5784 N/S)
| 9S***84 | Flywheel Group; Flywheel Group | 1 |
Flywheel (2p2702 N/S)
| 2P***02 | Flywheel Group; Flywheel Group | 1 |
7s5471 Flywheel Group
| 7S***71 | Flywheel Group; Flywheel Group | 1 |
Flywheel (2p1663 N/S)
| 2P***63 | Flywheel Group; Flywheel Group | 1 |
Flywheel (5s3451 N/S)
| 5S***51 | Flywheel Group; Flywheel Group | 1 |
Flywheel (7s7753 N/S)
| 7S***53 | Flywheel Group; Flywheel Group | 1 |
Flywheel (7s7875 N/S)
| 7S***75 | Flywheel Group; Flywheel Group | 1 |
Flywheel (9s5783 N/S)
| 9S***83 | Flywheel Group; Flywheel Group | 1 |
7s7878 Flywheel Group
| 7S***78 | Flywheel Group; Flywheel Group | 1 |
Flywheel Housing (2p9645 N/S)
| 2P***45 | Flywheel Housing | 1 |
Flywheel Housing (2p6208 N/S)
| 2P***08 | Flywheel Housing | 1 |
Flywheel Housing (2p6154 N/S)
| 2P***54 | Flywheel Housing | 1 |
Flywheel Housing Cover (2p6238 N/S)
| 2P***38 | Flywheel Housing Cover | 1 |
Flywheel Housing Cover (2p6130 N/S)
| 2P***30 | Flywheel Housing Cover | 1 |
2p6814 Flywheel Housing Group
| 2P***14 | Flywheel Housing Group | 1 |
Flywheel Housing (2p9644 N/S)
| 2P***44 | Flywheel Housing Group | 1 |
Rear Gear (2p8622 N/S)--Accessory Drive
| 2P***22 | Gear Group-Rear; Rear Gear Group | 1 |
Rear Gear (2p8160 N/S)--Accessory Drive
| 2P***60 | Gear Group-Rear | 1 |
Rear Gear (2p8621 N/S)--Accessory Drive
| 2P***21 | Gear Group-Rear; Rear Gear Group-Accessory Drive | 1 |
2p6166 Flywheel Housing Group
| 2P***66 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
2p6119 Flywheel Housing Group
| 2P***19 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
Flywheel Housing (2p6156 N/S)
| 2P***56 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
Flywheel Housing (4n5825 N/S)
| 4N***25 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
Flywheel Housing (2p6131 N/S)
| 2P***31 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
2p6129 Flywheel Housing Group
| 2P***29 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
Flywheel Housing (2p6119 N/S)
| 2P***19 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
Flywheel Housing (2p6122 N/S)
| 2P***22 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
Flywheel Housing (4n6055 N/S)
| 4N***55 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
Power Take-Off (9s6185 N/S)--Part 1
| 9S***85 | Power Take-Off Group | 1 |
Power Take-Off (9s6185 N/S)--Part 2
| 9S***85 | Power Take-Off Group | 1 |
Service Equipment And Supplies
Gasket Kits
Upper Structure
Cylinder Head Cover (2p6530 N/S)
| 2P***30 | Cover Group-Cylinder Head; Cylinder Head Cover Group | 1 |
Cylinder Head Cover (9n136 N/S)
| 9N***36 | Cover Group-Cylinder Head; Cylinder Head Cover Group | 1 |
2p6531 Cylinder Head Cover Group
| 2P***31 | Cover Group-Cylinder Head; Cylinder Head Cover Group | 1 |
Valve Mechanism Cover (2p6516 N/S)
| 2P***16 | Cover Group-Valve Mechanism; Valve Mechanism Cover Group | 1 |
4n7446 Cylinder Head Assembly
| 4N***46 | Cylinder Head As; Head Assembly-- Parts Service | 1 |
2p6476 Cylinder Head Group
| 2P***76 | Cylinder Head Group; Cylinder Head Group | 1 |
Cylinder Head (2p6496 N/S)
| 2P***96 | Cylinder Head Group; Cylinder Head Group | 1 |
Cylinder Head (2p6486 N/S)
| 2P***86 | Cylinder Head Group; Cylinder Head Group | 1 |
Cylinder Head Fastener (2p6546 N/S)
| 2P***46 | Fastener Group-Cylinder Head; Cylinder Head Fastener Group | 1 |
Lifting Eye (1p3840 N/S)
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
2p6526 Valve Mechanism Group
| 2P***26 | Valve-Mechanism Group; Valve Mechanism Group | 1 |
12F serial number reference
On the 12F (a 1960s rigid-frame grader) the serial/ID tag is a small riveted metal plate on the front frame, typically the right frame rail just behind the steering gear or the left rail ahead of the front axle; if the tag is missing, the number is usually stamped directly into the frame near the rivet holes. Read it as a 3-character prefix — two digits plus a letter, e.g. 13K, 33K, 89H — followed by the sequential unit number; there is no separate model tag, so the prefix itself is what ties the machine to its correct parts and service literature. Some factory literature bundles 12F coverage together with the heavier 14E grader in one manual, so confirm the prefix itself (not just the manual cover) matches the 12F before ordering parts.
| Prefix | Identifies | Notes |
|---|---|---|
| 13K | 12F direct-drive, rigid-frame grader — early production block | Cat D333 naturally aspirated six-cylinder diesel, roughly 125 flywheel hp. 6F-4R direct-drive transmission (no powershift), rigid non-articulated frame, power-assisted planetary blade controls introduced with the 12F in 1965. Dedicated 12F parts and service literature opens its numbering at this block, placing it near the 1965 introduction of the 12F. Exact closing serial and calendar-year cutoff not documented — confirm with dealer for a specific unit. |
| 33K | 12F direct-drive, rigid-frame grader — later production block | Same D333 engine and direct-drive rigid-frame configuration as the rest of the 12F line. Dedicated 12F parts and service literature sequences this block after 13K, putting it later in the run, but no independent calendar year is documented for the block boundaries — confirm with dealer for a specific unit's build year. |
| 89H | 12F direct-drive, rigid-frame grader — production block | Same D333, direct-drive, rigid-frame 12F configuration. Covered by its own dedicated 12F parts manual as well as the combined 12F service manual, separate from the 13K/33K block. No independent calendar year confirmed for this block — confirm with dealer for a specific unit's build year. |
Frequently asked questions
What engine powers the Caterpillar 12F motor grader?
Caterpillar's mechanical D333 inline six-cylinder diesel, naturally aspirated and rated around 93 kW (125 flywheel horsepower) gross, powers the confirmed 12F serial blocks. Some factory literature for those same serial ranges is instead bound around the mechanical, non-electronic 3306 inline six (which shares the D333's bore and stroke), so sources disagree on whether a mid-run engine change occurred. Neither engine carries electronic controls or diagnostic codes - confirm which one your unit has against its serial prefix and engine tag.
What is the operating weight of the Caterpillar 12F?
Base operating weight is about 14,027 kg (30,925 lb). Actual weight varies by configuration - the optional left blade extension, tire and wheel choice, and any counterweight add to that base figure, so treat it as a starting point rather than a fixed number.
What replaced the Caterpillar 12F?
The Caterpillar 12G replaced the 12F, arriving in 1973-74. It was a ground-up redesign: an articulated frame instead of rigid, a powershift transmission instead of direct-drive mechanical gearing, and fully hydraulic blade, circle, and steering controls instead of the 12F's hydraulic-assisted mechanical linkage.
What 12F owners discuss
Does engine setup differ across 12F serial ranges, and does that affect reliability?
Confirmed 12F serial blocks (13K, 33K, 89H prefixes) run the mechanical Cat D333, a naturally aspirated inline six with indirect precombustion-chamber injection, rated about 93 kW (125 hp) flywheel. Owners rate the D333 itself as long-lived; the recurring weak point is the precombustion chambers. They sit in the water jacket and eventually rust or crack through, showing up as coolant loss into the oil pan or bubbles in the radiator on cranking. Resealing the chambers with new washers usually fixes it and is simpler than pulling the head, so chase the head gasket only after chamber and liner leaks are ruled out. Some factory literature for these same serial ranges is instead bound around the mechanical 3306 engine spec, which has its own injection parts not interchangeable with the D333 - confirm which engine is actually fitted against your machine's engine tag before ordering parts.
Blade controls feel mechanical rather than full-hydraulic. Is that normal, and what wears out in there?
Yes, that is normal for this model. The 12F uses hydraulic-over-manual control: blade lift, side-shift and circle motion run through a mechanical gear train with hydraulic assist, not dedicated hydraulic valves for every function. Cat kept this layout on the No.12 line into the mid-1970s because early full-hydraulic circuits had a reputation for leaking or creeping down over time. The recurring complaint is a loud clunk or double-tap at the top or bottom of blade-lift travel, almost always a chipped tooth on one of the bevel gears ahead of the control gearbox, sometimes with the broken piece still jammed between two other teeth. Pull the control gearbox, inspect the gear train, and clear any debris.
Why does tire matching matter more on this grader than on other machines?
The rear tandem drive has no differential. Both rear axles are locked together, so all rear wheels turn at the same rate regardless of turning radius. Run one tire at a different tread depth or diameter than the rest of the set and the mismatch loads the tandem drive chains and axle gearing every time the machine turns. Standing advice is to keep drive tires matched as a set rather than spot-replacing one at a time. Wheel bearings are set with shims to a small running clearance rather than a torque spec: remove all bearing clearance first, then add shims for a few thousandths of an inch of endplay. That adjustment gets rechecked whenever a wheel is pulled, not only at tire replacement.
What causes sloppy grading accuracy, and how is a worn circle actually adjusted?
Usual culprits are wear at the circle and its drive pinion, plus play in the A-frame/drawbar joint and the moldboard lift and side-shift linkage. Circle and pinion wear is often worse on one side if an operator favors that working direction; both circle segments and pinion teeth are replaceable. Adjusting the circle is not a one-step shim job. The accepted order is fore-and-aft backlash between pinion and circle first, then the circle shoes so the circle actually runs true, then vertical play last. Skip that order and the circle ends up tight in one spot and loose in another.
What's the number-one mechanical complaint on the old 12F?
Owners and mechanics consistently rate the engine and drivetrain as close to bulletproof for a machine this old. The recurring weak spot is the braking system. The 12F uses self-adjusting, internal-expanding band-type brakes, and getting them right is fiddly: the band has to be centered in the drum, and the support-bolt adjustment that holds the band in position has to be reset every time the brake is adjusted, or the band wears unevenly at the top ends. Some mechanics run the machine, apply the brakes, then file high spots off the lining based on the contact pattern to seat it evenly. Because this is the brake system, have your dealer or a qualified brake tech verify final adjustment and stopping performance before returning the machine to work.
What electrical problems come up on these old 12Fs?
The 12F was built with direct electric start, no donkey/pony engine, on a generator-based charging system rather than an alternator. Field consensus is the factory generator struggles once a machine picks up extra lighting or accessories, and starter drives wear out after decades of service. A common owner fix is converting the charging circuit to a modern automotive-style alternator with updated wiring and bulbs, reported as more reliable than chasing generator brushes and regulators. This is old point-source wiring, not a modern sensor or ECM setup, so electrical complaints on this model mean charging and starting circuits, not diagnostic fault codes.
What should I check before buying a used 12F?
ID the serial prefix first: 13K, 33K, and 89H are the confirmed 12F blocks, and sources disagree on whether they carry the D333 or the 3306, so check the engine tag on the specific machine before ordering service literature or injection parts. Start it cold and watch for blowby or smoke, and pull the oil dipstick to check for a milky, emulsified look, a sign of coolant leaking into the crankcase past a precombustion chamber or head gasket. Watch the radiator for bubbling on startup, a sign of a compression leak into the cooling system. Walk the tires: matched tread depth across the drive set matters more here than on most machines because of the locked tandem drive, and a full tire set is a large share of what an older grader like this is worth. Check circle and lift-arm slop, and confirm the blade-lift gear train doesn't clunk through its travel; lifting the front wheels off the ground with the lift controls should be smooth, without the levers kicking back. Check fuel quality and tank condition if the machine has sat idle. Confirm the brakes hold and adjust properly; given known issues on this model, have your dealer or a qualified tech verify brake condition before relying on it for grade work.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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