Caterpillar 140
Caterpillarmotor grader

Caterpillar 140

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar 140 motor grader is a mechanical-era grading machine built from 1963 to 1974, predecessor to the lettered-series lineage that runs through the 140B, 140G, 140H, and 140K. Power comes from a naturally aspirated Cat 3306 inline six-cylinder diesel, fed by a mechanical inline fuel injection pump with a mechanical governor; earlier production of this grader used the D330-series engine before the running change to the 3306. Cat offered the 140 in direct-drive (11R serial prefix, 1970-1974) and power-shift (14U serial prefix, 1971-1974) configurations, both riding on the same worm-gear circle-drawbar moldboard system with hydraulic lift, side-shift, and tip control. Electrics run on a 24-volt system with Prestolite and Delco-Remy starting and charging components, and there is no electronic control of any kind on the machine.

For today's parts and collector market, the 140 sits firmly in vintage-equipment territory. Factory literature for this serial range is scarce, and owners typically source parts through salvage channels and specialty vintage-equipment suppliers rather than a standard dealer parts counter. That scarcity, combined with the machine's simple all-mechanical driveline, makes it a draw for restorers and collectors who want a grader they can maintain and repair without depending on electronic diagnostics or a modern parts network.

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 140 specifications

Engine

Engine modelCat 3306 mechanical arrangement, inline 6-cylinder diesel. This serial range carries the 3306 block per factory parts coverage. Earlier production of this grader used the D330 series engine before the running change to the 3306.
Configuration4-stroke inline 6-cylinder diesel. Mechanical in-line fuel injection pump with mechanical governor. Naturally aspirated. No turbocharger, no electronic engine control, no DEF aftertreatment.
Displacement10.5 L (638 cu in)
Bore and stroke121 mm x 152 mm (4.75 in x 6.00 in)
Gross powerNot published for this exact serial range in available period literature. Naturally aspirated 3306 industrial ratings of the era generally fall in the 75-112 kW (100-150 hp) band. Confirm rated output against the engine arrangement number on the machine's data plate.
Starting and charging24-volt system. Prestolite and Delco-Remy starter and alternator.

Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.

Caterpillar 140 maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level and top up as needed before startup
  • Check coolant level in the radiator
  • Grease circle-drawbar and moldboard wear points
  • Look for oil, fuel, or coolant leaks around the engine and injection pump
  • Watch oil pressure gauge, water temperature gauge, and ammeter during warm-up and operation
Every 250 h
  • Inspect circle and drawbar wear strips for excess play; adjust or replace as needed
  • Check pinion bearing adjustment on the blade lift mechanism for early signs of side drift or drop
  • Inspect drive belts for tension and wear
  • Check battery terminals and charging system output
  • Service the air cleaner based on visible dust load
Every 500 h
  • Inspect governor linkage and injection pump for wear or leakage
  • Check the water pump for weep-hole seepage, a normal wear indicator on this engine family
  • Inspect circle gear and worm-gear mesh for wear
  • Check the driveline (direct-drive or power-shift, per configuration) for unusual noise or leakage
  • Inspect the circle holding brake linkage
Every 1,000 h
  • Inspect internal clutch packs in the blade lift mechanism for wear, a common source of blade side drift or drop
  • Check injection pump timing and governor response qualitatively against engine performance
  • Inspect moldboard mounting and circle wear plates for replacement
  • Check driveline u-joints, differential, and final drives (configuration-dependent) for wear
  • Inspect the drawbar ball-and-socket joint for wear or looseness

Servicing the 140 beyond the schedule

Predictive maintenance & fluid analysis

On this mechanical 3306/D330-series grader, predictive care means reading gauges and wear points rather than running diagnostics. Track oil pressure, water temperature, and ammeter readings against a known baseline for the machine and note any drift over time. Pull oil samples at regular service points to catch abrasive wear in the injection pump and governor before it shows up as power loss. Watch the water pump weep hole for early seepage, a documented wear signal on this engine family, and log circle-drawbar play over time to predict wear-strip replacement before it reaches the blade.

Corrective & common repairs

Common fixes on this grader center on the blade lift mechanism and circle-drawbar. Side drift or unexpected blade drop traces to worn internal clutch packs or a pinion bearing needing adjustment; correct the bearing preload before condemning the clutch. Circle and drawbar wear strips loosen with age and need screw-clamp adjustment or replacement to restore blade control. Governor and injection pump wear shows up as rough idle or power loss and calls for qualified mechanical fuel-system work rather than field adjustment. Repair procedure also differs by configuration between direct-drive (11R) and power-shift (14U) driveline components.

Overhaul & rebuild points

A full rebuild on this vintage grader centers on the mechanical fuel system, driveline, and circle-drawbar assembly. Injection pump and governor overhaul should go to a shop familiar with mechanical Cat fuel systems of this era, since no electronic diagnostics exist to guide the work. Circle gear, worm drive, and wear strips wear as a set and are best rebuilt together to restore blade geometry. Driveline overhaul differs by configuration: direct-drive (11R) and power-shift (14U) use different internal components, so confirm configuration from the machine's data plate before sourcing parts.

Seasonal & environment servicing

Cold-weather starting on this naturally aspirated mechanical diesel depends on battery condition and correct 24-volt charging output; there is no glow-plug or electronic cold-start aid to fall back on. Watch the ammeter closely during cold starts for early signs of charging trouble. In dusty or abrasive field conditions, grease circle-drawbar wear points more often and check wear strips and pinion bearing adjustment sooner, since grit accelerates wear on these mechanical contact points. Check the water pump weep hole across temperature extremes, since seepage there is a normal wear signal on this engine family.

140 common service parts

Part numberPart
1P-2299Filter As-FuelCheck fitment →
5S-9665Fuel FilterCheck fitment →
4N-5121Primary Fuel FilterCheck fitment →

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140 fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
Oil pressure gauge - low readingGauge shows engine oil pressure below the normal operating band for the mechanical 3306 (or D330-series) inline-6.Low crankcase oil level, restricted pump inlet screen or suction line, a pump or filter bypass valve stuck open, worn main/rod bearing clearance, or a plugged oil cooler.Stop the engine at once. Check oil level and top off if low. Inspect the filter and pump inlet screen for restriction before restarting. Do not run the engine again until pressure reads normal.
Water temperature gauge - high readingCoolant temperature gauge reads above the normal band, roughly 82-99 degrees C (180-210 degrees F) for this engine family; sustained readings near or above that band signal overheating.Low coolant level, clogged or fin-damaged radiator core, thermostat stuck closed, slipping or broken fan belt, or blocked airflow through the core.Reduce load and let the engine idle to cool before shutdown. Check coolant level, radiator core, belt condition, and thermostat once safe to do so. Do not add coolant to a hot engine.
Ammeter - continuous discharge or sustained high chargeAmmeter needle sits on the discharge side instead of returning near center after starting, or pegs on a high charge rate continuously, indicating the charging circuit is not maintaining the battery correctly.Loose or worn drive belt, faulty generator/alternator, failed voltage regulator, or a battery that will not hold charge.Check belt tension and wiring connections. Have the charging system and battery tested by a qualified technician if the condition persists.
Low oil pressure automatic engine shutdown (where equipped)On engines fitted with the optional oil pressure safety contactor, a drop in oil pressure below the set limit energizes a shutoff solenoid that moves the fuel rack to the stop position and kills the engine, independent of any gauge reading.Same root causes as low oil pressure: low oil level, restricted pump inlet, worn bearings, or a stuck bypass valve.Do not attempt to restart until the oil level and lubrication system are checked and the cause corrected. Availability of this shutdown device varies by configuration.

Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.

140 attachments & work tools

Moldboard (blade)

Standard work tool, mounted on the rotating circle at the front of the drawbar. Hydraulic cylinders set lift at each end, side-shift, and blade tip angle, while the circle rotates to set cutting angle. Cutting edge is a bolt-on replaceable strip.

Scarifier

Front-mounted attachment fitted ahead of the moldboard on the nose lift group. Individual shanks with replaceable tips penetrate and loosen compacted gravel, road base, or light asphalt and chip seal ahead of the blade pass. Shank section is lighter than a true rock ripper; this grader size was offered with scarifier-class tooling rather than heavy-duty rippers.

Circle-drawbar mounting

Moldboard bolts to a circle that rides on the drawbar, which pivots from the front of the main frame. Circle rotation is driven through a self-locking worm gear with a holding brake that resists blade side loads. Screw-type wear clamps take up play between circle and drawbar, and a removable crossbar lets the assembly float for lighter, higher-speed work.

Hydraulic controls

Blade lift at each end, side-shift, and circle rotation are hydraulically actuated through a cylinder-and-valve bank operated by levers at the operator's station, replacing the mechanical hand-crank controls of earlier graders. The front scarifier's lift cylinder ties into the same hydraulic circuit.

Driveline variants

Offered as the 11R direct-drive and 14U power-shift transmission variants. Both use the same front moldboard, circle-drawbar, and scarifier arrangement, so work-tool mounting and compatibility do not differ between the two.

All 140 assemblies by section

Every catalogued assembly group for the Caterpillar 140. 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***02Camshaft Group-Single; Single Camshaft Group1
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Cylinder Block Cover (2p6256 N/S)--Type 1
2P***56Cover Group; Cylinder Block Cover Group1
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Cylinder Block Cover (2p6256 N/S)--Type 2
2P***56Cover Group; Cylinder Block Cover Group1
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4n5163 Cylinder Block Cover Group
4N***63Cover Group; Cylinder Block Cover Group1
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Cylinder Block And Cover (2p6517 N/S)--Type 1
2P***17Cover Group-Cylinder Block; Cylinder Block Covers Group1
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Cylinder Block Cover (2p6517 N/S)--Type 2
2P***17Cover Group-Cylinder Block; Cylinder Block Covers Group1
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Cylinder Block Cover (4n5164 N/S)
4N***64Cover Group-Cylinder Block; Cylinder Block Cover Group1
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Cylinder Block Cover (4n8675 N/S)
4n7693 Crankshaft Assembly--Field Replacement
9s3057 Crankshaft Assembly--Field Replacement
Crankshaft Bearings And Thrust Plate Group
4S***81Bearing (.010 In. Undersize); Bearing (0.25 mm Undersize)7
4S***83Bearing (.020 Undersize); Bearing (.020 Undersize)7
4S***85Bearing (.030 In. Undersize); Bearing (0.76 mm Undersize)7
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Crankshaft (2p6220 N/S)
Crankshaft (2p6222 N/S)
2P***22Crankshaft Group; Crankshaft Group1
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2p6220 Crankshaft Group--Type 2
Crankshaft Seal (2p7309 N/S)
6n221 Crankshaft Seal Group
Crankshaft Seal (4n5028 N/S)
2p8776 Cylinder Block Assembly
Cylinder Block Cover (2p6558 N/S)
Cylinder Block (2p6558 N/S)
2p6560 Cylinder Block Group
2P***60Cylinder Block Group; Cylinder Block Group1
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Connecting Rod And Piston (2p6272 N/S)--6 Required
Connecting Rod And Piston (4n4028 N/S)--6 Required
4N***28Piston & Rod Group; Connecting Rod And Piston Group1
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Connecting Rod And Piston (9s8912 N/S)--6 Required
9S***12Piston & Rod Group; Connecting Rod And Piston Group1
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Crankshaft Seal (6n220 N/S)
2p6223 Crankshaft Seal Group
2P***23Seal Group-Crankshaft; Crankshaft Seal Group1
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2p6224 Crankshaft Seal Group
2P***24Seal Group-Crankshaft; Crankshaft Seal Group1
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2p6226 Crankshaft Seal Group
2P***26Seal Group-Crankshaft; Seal Group-Crankshaft1
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Crankshaft Seal (2p7308 N/S)
2p6483 Crankshaft Seal Group
Cooling System
Engine Oil Cooler (2p7738 N/S)
2P***38Cooler Group-Engine Oil; Engine Oil Cooler Group1
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2p6215 Engine Oil Cooler Group
2P***15Cooler Group-Engine Oil; Oil Cooler Group Engine1
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Transmission Oil Cooler (2p6515 N/S)
2P***15Cooler Group-Transmission Oil; Transmission Oil Cooler Group1
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Transmission Oil Cooler (2p6508 N/S)
2P***08Cooler Group-Transmission Oil; Transmission Oil Cooler Group1
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Transmission Oil Cooler (2p6510 N/S)
2P***10Cooler Group-Transmission Oil; Transmission Oil Cooler Group1
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Transmission Oil Cooler (2p7736 N/S)
2P***36Cooler Group-Transmission Oil; Transmission Oil Cooler Group1
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Engine Oil Cooler (4n3719 N/S)
Housing And Regulator (2p8176 N/S)
Housing And Regulator (2p8171 N/S)
2P***71Housing & Regulator Group; Housing And Regulator Group1
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Housing And Regulator (2p8174 N/S)
2P***74Housing & Regulator Group; Housing And Regulator Group1
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Housing And Regulator (2p8172 N/S)
2P***72Housing & Regulator Group; Regulator And Housing Group1
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Housing And Regulator (2p8177 N/S)
Housing And Regulator (2p8170 N/S)
Housing And Regulator Gp(2p8175 N/S)
2P***75Housing & Regulator Group; Regulator And Housing Group1
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Housing And Regulator (3n3271 N/S)
3N***71Housing & Regulator Group; Housing And Regulator Group1
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Housing And Regulator (2p8173 N/S)
2P***73Housing & Regulator Group; Regulator And Housing Group1
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Housing And Regulator (4n3712 N/S)
Housing And Regulator (2p8178 N/S)
2P***78Housing And Regulator; Housing And Regulator Group1
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2p7741 Water Lines Group--Pipe
2P***41Lines Group-Water; Water Lines Group-- Pipe1
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2p7740 Water Lines Group--Elbow
2P***40Lines Group-Water; Water Lines Group--Elbow1
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2p7728 Water Lines Group--Elbow
2P***28Lines Group-Water; Water Lines Group (Elbow)1
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Water Lines (2p7728 N/S)--Elbow
2P***28Lines Group-Water; Water Lines Group (Elbow)1
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2p6188 Water Lines Group
2P***88Lines Group-Water; Water Lines Group1
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Water Lines (2p7730 N/S)
2P***30Lines Group-Water; Water Lines Group1
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2p661 Water Pump Group
2P***61Pump Group-Water; Water Pump Group1
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2p662 Water Pump Group
2P***62Pump Group-Water; Water Pump Group1
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Transmission Oil Cooler (4n9068 N/S)
4n6646 Transmission Oil Cooler Group
4N***46Transmission Oil Cooler Group; Oil Cooler Group Transmission1
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Transmission Oil Cooler (4n6646 N/S)
4N***46Transmission Oil Cooler Group; Oil Cooler Group Transmission1
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Electrical System
2p1204 Alternator Group--24 Volt, 19 Ampere
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 2 Of 2
2p7836 Alternator Group--24 Volt, 19 Ampere
2P***36Alternator Group-Charging; Charging Alternator Group1
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2p7836 Alternator Group--24 Volt--19 Ampere
2P***36Alternator Group-Charging; Charging Alternator Group1
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Alternator (4n5090 N/S)--24 Volt, 19 Ampere
Alternator (2p7835 N/S)--24 Volt--50 Ampere
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 1 Of 2
2p6162 Electric Starting Motor Group--Prestolite--24 Volt--Part 2 Of 2
4n3180 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 1 Of 2
2p6162 Electric Starting Motor Group--Prestolite--24 Volt--Part 1 Of 2
4n3180 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 2 Of 2
5s8501 Glow Plug Group
5S***01Glow Plug Group; Glow Plug And Wiring Group1
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Solenoid Shut-Off (7s9480 N/S)--24 Volt
7S***80Shut-Off Group; Solenoid Shut-Off Group1
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9s7976 Solenoid Switch Assembly
7s3622 Electric Starting Motor Group--24 Volt--Type 2
7S***22Starting Motor Group-Electric; Electric Starting Motor Group1
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Electric Starting Motor (7s4090 N/S)--24 Volt
3p6 Electric Starting Motor Group--Prestolite--24 Volt--Part 1 Of 2
3P***06Starting Motor Group-Electric; Electric Starting Motor Group-Prestolite1
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3p6 Electric Starting Motor Group--Prestolite--24 Volt--Part 2 Of 2
3P***06Starting Motor Group-Electric; Electric Starting Motor Group-Prestolite1
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2p2502 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 1 Of 2
2p2502 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 2 Of 2
4n7752 Electric Starting Motor Group--Prestolite--24 Volt--Part 2 Of 2
4N***52Starting Motor Group-Electric; Electric Starting Motor Group --Prestolite1
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4n3182 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 1 Of 3
4N***82Starting Motor Group-Electric; Electric Starting Motor Group-- Delco-Remy1
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7s3622 Electric Starting Motor Group--24 Volt--Type 1
7S***22Starting Motor Group-Electric; Electric Starting Motor Group1
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4n3182 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 2 Of 3
4N***82Starting Motor Group-Electric; Electric Starting Motor Group-- Delco-Remy1
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Electric Starting Motor (7s5410 N/S)--24 Volt
7S***10Starting Motor Group-Electric; Electric Starting Motor Group1
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4n7752 Electric Starting Motor Group--Prestolite--24 Volt--Part 1 Of 2
4N***52Starting Motor Group-Electric; Electric Starting Motor Group --Prestolite1
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4n3182 Electric Starting Motor Group--Delco-Remy--24 Volt--Part 3 Of 3
4N***82Starting Motor Group-Electric; Electric Starting Motor Group-- Delco-Remy1
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1p9181 Solenoid Switch Assembly
6n5123 Solenoid Switch Assembly--24 Volt
4n8985 Coolant Flow Switch Group
Engine Arrangement
8s3875 Arrangement
2P***91Engine Ar1
2P***62Normalizing Arrangement; (See 3306 Engine 3n1 To 3n24132 Inclusive)1
8S***75Arrangement1
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8s3874 Arrangement
2P***90Engine Ar1
2P***62Normalizing Arrangement; (See 3306 Engine 3n1 To 3n24132 Inclusive)1
8S***74Arrangement1
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4n7373 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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4n7372 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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4n7364 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
2P***62Pump Group-Water; Water Pump Group1
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4n7361 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
2P***62Pump Group-Water; Water Pump Group1
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4n3571 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
2P***62Pump Group-Water; Water Pump Group1
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4n7366 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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4n7365 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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4n7363 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
2P***62Pump Group-Water; Water Pump Group1
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4n4994 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
2P***62Pump Group-Water; Water Pump Group1
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4n7374 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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2p6800 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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2p6789 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***74Torque Control1
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4n4463 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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2p6801 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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2p6788 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***74Torque Control1
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2p6810 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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6n0484 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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2p6793 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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2p6808 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
2P***62Pump Group-Water; Water Pump Group1
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2p6811 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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2p6806 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
2P***62Pump Group-Water; Water Pump Group1
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2p6797 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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2p6812 Engine Ar
1P***45Engine Decelerator Control1
1P***46Fuel Pump Housing And Governor1
1P***40Lifting Group; Lifting Eye Group1
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6n0482 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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2p6795 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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4n6521 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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4n7367 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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2p6792 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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2p6790 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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2p6805 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
2P***62Pump Group-Water; Water Pump Group1
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2p6807 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
2P***62Pump Group-Water; Water Pump Group1
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4n4993 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
2P***62Pump Group-Water; Water Pump Group1
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6n0488 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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6n0486 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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2p6799 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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2p6796 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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2p6798 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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4n4439 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
2P***61Pump Group-Water; Water Pump Group1
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2p6804 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
See all parts with full part numbers in Heavy Parts AI →
2p6794 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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2p6791 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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4n5359 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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2p6802 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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2p6803 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***80Turbocharger1
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2p6809 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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4n7371 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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4n7370 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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3p0075 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***52Turbocharger Group1
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4n8132 Engine Arrangement
2P***88Engine Ar1
4N***36Refrigerant Compressor Arrangement1
4N***61Basic Engine Arrangement1
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2p9637 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***52Turbocharger Group1
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4n7377 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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1p32 Arrangement
1P***32Engine Arrangement1
2P***93Engine Ar1
2P***73Normalizing Arrangement; Normalizing Arrangement Engine Parts1
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2p8947 Arrangement
2P***04Engine Ar1
2P***43Trunnion Group1
2P***47Engine Arrangement1
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4n7368 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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1p9587 Engine Ar
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
1P***81Flywheel Group; Flywheel Group1
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4n7376 Engine Ar
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
1P***40Lifting Group; Lifting Eye Group1
1P***44Breather Group1
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2p9562 Normalizing Arrangement
2P***22Crankshaft Group; Crankshaft Group1
2P***73Manifold Group-Exhaust1
2P***46Air Lines Group1
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2p9573 Normalizing Arrangement
2P***22Crankshaft Group; Crankshaft Group1
2P***24Seal Group-Crankshaft; Crankshaft Seal Group1
2P***73Manifold Group-Exhaust1
See all parts with full part numbers in Heavy Parts AI →
This Chart Shows Various Vehicles Using 3306 Vehicular Engine Serial No. 3n1 To 3n24132 Followed By
Front Structure
Belt Tightener (2p9558 N/S)
4n6050 Front Housing Cover Group
4n5162 Front Housing Cover Group
Front Housing Cover (2p6529 N/S)
2P***29Cover Group-Front Housing; Front Housing Cover Group1
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Front Housing Cover (2p6528 N/S)
2P***28Cover Group-Front Housing; Front Housing Cover Group1
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Damper (3p17 N/S)
Damper (4n4365 N/S)
Damper (4n3238 N/S)
Damper (2p7838 N/S)
Damper (4n3239 N/S)
Damper (2p2503 N/S)
2P***03Damper Group-Pulley & Cshft; Crankshaft And Pulley Damper Group1
See all parts with full part numbers in Heavy Parts AI →
Fan Drive (4n8537 N/S)
4N***37Drive Group-Fan; Fan Drive Group1
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2p7831 Fan Drive Group
2P***31Drive Group-Fan; Fan Drive Group1
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Support (2p7744 N/S)
Support (4n3506 N/S)
Fan Drive (3p18 N/S)
2p6498 Front Housing Fastener Group
2P***98Fastener Group-Front Housing; Front Housing Fastener Group1
See all parts with full part numbers in Heavy Parts AI →
4n5122 Front Housing Fastener Group
4N***22Fastener Group-Front Housing; Front Housing Fastener Group1
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Front Gear (2p7782 N/S)--Timing
2p6211 Front Gear Group--Timing
2P***11Front Gear Group; Front Gear Group-Timing1
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Front Housing (2p6153 N/S)
2P***53Front Housing; Front Housing Group1
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Front Gear (4n3271 N/S)--Timing
4N***71Gear Group-Front Timing; Front Timing Gear Group1
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2p9642 Front Gear Group--Timing
Front Housing (2p9641 N/S)
2P***41Housing Group-Front; Front Housing Group1
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Pulley (2p8600 N/S)
Pulley (4n6048 N/S)
Pulley (2p8158 N/S)
2P***58Pulley Group; Fan Drive Pulley Group1
See all parts with full part numbers in Heavy Parts AI →
Pulley (2p8217 N/S)
Pulley (2p8595 N/S)
Pulley (3p44 N/S)
Pulley (2p8213 N/S)
2P***13Pulley Group; Pulley Group (Crankshaft & Fan Drive)1
See all parts with full part numbers in Heavy Parts AI →
Pulley (4n9014 N/S)
Pulley (2p8601 N/S)
Pulley (2p8599 N/S)
Pulley (4n3562 N/S)
4N***62Pulley Group-Crankshaft; Crankshaft Pulley Group1
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Pulley (2p8602 N/S)
Support (2p7746 N/S)
Support (2p7750 N/S)
Support (2p7743 N/S)
Support (2p8856 N/S)
2P***56Support Group; Engine Support Group1
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Support (2p7753 N/S)
2P***53Support Group-Engine; Front Engine Support Group1
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Support (2p7745 N/S)
2P***45Support Group-Engine; Engine Support Group1
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Support (2p7751 N/S)
2P***51Support Group-Engine; Engine Support Group1
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Support (4n6051 N/S)
4N***51Support Group-Engine; Engine Support Group1
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Support (2p7749 N/S)
2P***49Support Group-Engine; Engine Support Group1
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Support (2p7752 N/S)
2P***52Support Group-Engine; Engine Support Group1
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Support (2p7747 N/S)
2P***47Support Group-Engine; Engine Support Group1
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Support (2p7748 N/S)
2P***48Support Group-Engine; Engine Support Group1
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Support (1p9586 N/S)
1P***86Support Group-Engine; Engine Support Group1
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2p8943 Trunnion Group
2p6246 Trunnion Group
Fuel System And Governor
Governor And Fuel Injection Pump (6n1241 N/S)--Type 2
6N***41Governor And Fuel Injection Pump Group1
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6n301 Governor And Fuel Injection Pump Group
6N***01Governor And Fuel Injection Pump Group1
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6n297 Governor And Fuel Injection Pump Group
6N***97Governor And Fuel Injection Pump Group1
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6n312 Governor And Fuel Injection Pump Group
6N***12Governor And Fuel Injection Pump Group1
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6n295 Governor And Fuel Injection Pump Group
6N***95Governor And Fuel Injection Pump Group; Governor And Fuel Injection Pump Group1
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6n304 Governor And Fuel Injection Pump Group
6N***04Governor And Fuel Injection Pump Group1
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6n300 Governor And Fuel Injection Pump Group
6N***00Governor And Fuel Injection Pump Group; Governor And Fuel Injection Pump Group1
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Governor And Fuel Injection Pump (6n1241 N/S)--Type 1
6N***41Governor And Fuel Injection Pump Group1
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6n298 Governor And Fuel Injection Pump Group
6N***98Governor And Fuel Injection Pump Group1
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6n293 Governor And Fuel Injection Pump Group
6N***93Governor And Fuel Injection Pump Group1
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6n306 Governor And Fuel Injection Pump Group
6N***06Governor And Fuel Injection Pump Group1
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6n303 Governor And Fuel Injection Pump Group
6N***03Governor And Fuel Injection Pump Group1
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6n308 Governor And Fuel Injection Pump Group
6N***08Governor And Fuel Injection Pump Group1
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6n311 Governor And Fuel Injection Pump Group
6N***11Governor And Fuel Injection Pump Group1
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6n296 Governor And Fuel Injection Pump Group
6N***96Governor And Fuel Injection Pump Group1
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Governor And Fuel Injection Pump (7s6740 N/S)
7S***40Governor And Fuel Injection Pump Group1
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Tachometer Drive (6n1399 N/S)
4n4751 Tachometer Drive Group
Accessory Drive (2p7712 N/S)
Accessory Drive (3n3287 N/S)
Fuel Ratio Control (6n3047 N/S)
9n867 Fuel Ratio Control Group
6n4654 Fuel Ratio Control Group
6n3630 Torque Control Group
Torque Control (6n3586 N/S)
Torque Control (4n9240 N/S)
6n3609 Torque Control Group
Governor Cover (4n4510 N/S)
4N***10Cover Group-Governor; Governor Cover Group1
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9s4488 Tachometer Drive Group
Tachometer Drive (4n7249 N/S)
Engine Decelerator Control (1p45 N/S)
Engine Decelerator Control (6n1239 N/S)
6N***39Engine Decelerator Control Group1
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7l261 Fuel Filter And Priming Pump Group
1p2299 Fuel Filter Assembly
1P***99Filter As-Fuel; (Advanced Efficiency)(Secondary)1
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4n1981 Fuel Filter Group
Fuel Filter (4n9882 N/S)
4N***82Filter Group-Fuel; Fuel Filter Group1
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4n3303 Fuel Filter Group
4N***03Filter Group-Fuel; Fuel Filter Group1
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Primary Fuel Filter (1p6835 N/S)
1P***35Filter Group-Primary Fuel; Primary Fuel Filter Group1
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8h4681 Primary Fuel Filter Group
8H***81Filter Group-Primary Fuel; Primary Fuel Filter Group1
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Fuel Filter (5s9665 N/S)
Fuel Filter (6n1750 N/S)
Fuel Filter (4n3599 N/S)
Fuel Filter (8s9311 N/S)
5s9666 Fuel Filter Group
Fuel Filter Lines (6n1210 N/S)
6N***10Fuel Filter Lines; Fuel Filter Lines Group1
See all parts with full part numbers in Heavy Parts AI →
Fuel Injection Lines (2p7456 N/S)
Fuel Injection Lines (2p7457 N/S)
Fuel Injection Lines (4n8007 N/S)
Fuel Injection Lines (2p7459 N/S)
Fuel Injection Lines (6n1057 N/S)
6N***57Fuel Injection Lines; Fuel Injection Lines Group1
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Fuel Injection Lines (4n3376 N/S)
4N***76Fuel Injection Lines; Fuel Injection Lines Group1
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Fuel Injection Lines (2p7458 N/S)
Fuel Injection Lines (4n6033 N/S)
Fuel Injection Lines (4n9947 N/S)
Fuel Injection Lines (6n1637 N/S)
Fuel Injection Lines (4n3649 N/S)
Fuel Injection Lines (6n572 N/S)
6N***72Fuel Injection Lines Group; Fuel Injection Lines Group1
See all parts with full part numbers in Heavy Parts AI →
Fuel Priming Pump (5s2100 N/S)
Fuel Priming Pump (2p7709 N/S)
7s1251 Fuel Priming Pump Group--Type 2
7s1251 Fuel Priming Pump Group--Type 1
Governor And Fuel Injection Pump (9s5979 N/S)
Governor And Fuel Injection Pump (8s110 N/S)
Governor And Fuel Injection Pump (5s9571 N/S)
Governor And Fuel Injection Pump (1p46 N/S)
Governor And Fuel Injection Pump (9s5785 N/S)
Governor And Fuel Injection Pump (5s9075 N/S)
Governor And Fuel Injection Pump (7s9337 N/S)
9s2296 Governor And Fuel Injection Pump Group
9S***96Fuel Pump Housing And Governor Group1
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5s9076 Fuel Pump Housing Group
Fuel Ratio Control (4n5223 N/S)
Fuel Ratio Control (8s8951 N/S)
8S***51Fuel Ratio Control; Air Fuel Ratio Control Group1
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4n5063 Fuel Ratio Control Group
4n4900 Fuel Ratio Control Group
Fuel Transfer Pump (2p6859 N/S)
7s5445 Fuel Transfer Pump Group (7s5108 N/S)
7s4430 Fuel Transfer Pump Group
4n4873 Fuel Transfer Pump Group (7s5108 N/S)
7l543 Fuel Transfer Pump Group (7l247 N/S)
4n4878 Fuel Transfer Pump Group (7l247 N/S)
Governor And Fuel Injection Pump (4n1836 N/S)--Part 4 Of 4--Type 1
Governor And Fuel Injection Pump (4n1836 N/S)--Part 2 Of 4--Type 1
6n3472 Governor And Fuel Injection Pump Group
Governor And Fuel Injection Pump (6n260 N/S)--Type 1
Governor And Fuel Injection Pump (4n1836 N/S)--Part 3 Of 4--Type 1
4n1836 Governor And Fuel Injection Pump Group--Part 2 Of 4
6n268 Governor And Fuel Injection Pump Group--Part 1 Of 2--Type 2
Governor And Fuel Injection Pump (4n1836 N/S)--Part 4 Of 4--Type 3
4n1836 Governor And Fuel Injection Pump Group--Part 3 Of 4
Governor And Fuel Injection Pump (4n1836 N/S)--Part 2 Of 4--Type 3
6n2840 Governor And Fuel Injection Pump Group--Type 2
6N***40Gov & Fuel Inj Pump Group; Governor & Fuel Injection Pump Group1
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Governor And Fuel Injection Pump (6n261 N/S) -- Type 1
6n268 Governor And Fuel Injection Pump Group--Part 2 Of 2--Type 2
6n299 Governor And Fuel Injection Pump Group
6N***99Gov & Fuel Inj Pump Group; Governor And Fuel Injection Pump Group1
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4n1836 Governor And Fuel Injection Pump Group--Part 4 Of 4
6n268 Governor And Fuel Injection Pump Group--Part 2 Of 2--Type 3
Governor And Fuel Injection Pump (4n1836 N/S)--Part 3 Of 4--Type 2
6n260 Governor And Fuel Injection Pump Group--Type 2
Governor And Fuel Injection Pump (6n268 N/S)--Part 2 Of 2--Type 1
Governor And Fuel Injection Pump (4n1836 N/S)--Part 1 Of 4--Type 1
Governor And Fuel Injection Pump (4n1836 N/S)--Part 1 Of 4--Type 2
4n1836 Governor And Fuel Injection Pump Group--Part 1 Of 4
Governor And Fuel Injection Pump (6n268 N/S)--Part 1 Of 2--Type 1
6n268 Governor And Fuel Injection Pump Group--Part 1 Of 2--Type 3
Governor And Fuel Injection Pump (4n1836 N/S)--Part 1 Of 4--Type 3
6n263 Governor And Fuel Injection Pump Group--Type 2
6n294 Governor And Fuel Injection Pump Group
6N***94Gov & Fuel Inj Pump Group; Governor And Fuel Injection Pump Group1
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6n261 Governor And Fuel Injection Pump Group--Type 2
Governor And Fuel Injection Pump (4n1836 N/S)--Part 4 Of 4--Type 2
6n263 Governor And Fuel Injection Pump Group--Type 3
6n263 Governor And Fuel Injection Pump Group--Type 1
6n305 Governor And Fuel Injection Pump Group
6N***05Gov & Fuel Inj Pump Group; Governor & Fuel Injection Pump Group1
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Governor And Fuel Injection Pump (4n1836 N/S)--Part 3 Of 4--Type 3
Governor And Fuel Injection Pump (4n1836 N/S)--Part 2 Of 4--Type 2
Governor And Fuel Injection Pump (6n2840 N/S) -- Type 1
6N***40Gov & Fuel Inj Pump Group; Governor & Fuel Injection Pump Group1
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4n2844 Governor And Fuel Injection Pump Group
Governor And Decelerator Control (9s7053 N/S)
9S***53Governor And Decelerator Control1
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Governor And Fuel Injection Pump (6n256 N/S)
6N***56Governor And Fuel Injection Pump1
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Governor And Fuel Injection Pump (4n4673 N/S)
4N***73Governor And Fuel Injection Pump1
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Governor And Fuel Injection Pump (6n1261 N/S)
6N***61Governor And Fuel Injection Pump1
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7s9333 Governor Group--Part 2 Of 2--Type 2
9s6700 Governor Group--Part 2 Of 2--Type 2
8s6536 Governor Group--Part 1 Of 2--Type 2
7s9332 Governor Group--Part 2 Of 2--Type 2
9s5740 Governor Group--Part 2 Of 2--Type 1
7s9332 Governor Group--Part 1 Of 2--Type 2
8s6536 Governor Group--Part 2 Of 2--Type 1
9s5740 Governor Group--Part 1 Of 2--Type 2
9s6700 Governor Group--Part 1 Of 2--Type 2
9s6700 Governor Group--Part 2 Of 2--Type 1
7s9333 Governor Group--Part 2 Of 2--Type 1
7s9333 Governor Group--Part 1 Of 2--Type 1
9s6701 Governor Group--Part 2 Of 2--Type 1
7s9332 Governor Group--Part 1 Of 2--Type 1
9s6701 Governor Group--Part 1 Of 2--Type 1
8s6536 Governor Group--Part 1 Of 2--Type 1
7s9332 Governor Group--Part 2 Of 2--Type 1
8s9442 Governor Group--Part 1 Of 2--Type 2
8s9442 Governor Group--Part 2 Of 2--Type 2
8s6536 Governor Group--Part 2 Of 2--Type 2
8s9442 Governor Group--Part 2 Of 2--Type 1
9s6700 Governor Group--Part 1 Of 2--Type 1
9s5740 Governor Group--Part 1 Of 2--Type 1
9s6701 Governor Group--Part 2 Of 2--Type 2
8s9442 Governor Group--Part 1 Of 2--Type 1
8s6536 Governor Group--Part 1 Of 2--Type 3
7s9333 Governor Group--Part 1 Of 2--Type 2
9s6701 Governor Group--Part 1 Of 2--Type 2
9s5740 Governor Group--Part 2 Of 2--Type 2
1p47 Governor Group--Part 1 Of 2--Type 1
1p47 Governor Group--Part 2 Of 2--Type 2
8s6536 Governor Group--Part 2 Of 2--Type 3
7s9332 Governor Group--Part 2 Of 2--Type 3
1p47 Governor Group--Part 2 Of 2--Type 1
1p47 Governor Group--Part 1 Of 2--Type 2
7s9332 Governor Group--Part 1 Of 2--Type 3
8s6099 Torque Control Group--Type 2
8s5042 Torque Control Group--Type 2--Field Installation
Torque Control (1p5007 N/S)
Torque Control (4n3650 N/S)
Torque Control (9s5546 N/S) - Type 1
9s5546 Torque Control Group--Type 2
Torque Control (8s5042 N/S)--Type 1
Torque Control (8s6099 N/S) - Type 1
Torque Control (9l5382 N/S)
Torque Control (8s5050 N/S)
Torque Control (9s9028 N/S)
8l8682 Torque Control Group
Fuel Injection Lines (2p8916 N/S)
2P***16Lines Group-Fuel Injection; Fuel Injection Lines Group1
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4n8054 Fuel Injection Lines Group
4N***54Lines Group-Fuel Injection; Fuel Injection Lines Group1
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Service Meter (6n490 N/S)
6N***90Meter Group-Service; Service Meter Group1
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4n3336 Service Meter Group
4N***36Meter Group-Service; Service Meter Group1
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4n6656 Service Meter Group
4N***56Meter Group-Service; Service Meter Group1
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Primary Fuel Filter (4n5121 N/S)
9h2256 Pump Assembly
Fuel Priming Pump (4n4314 N/S)
4N***14Pump Group-Fuel Priming; Fuel Priming Pump Group1
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Fuel Priming Pump (4n3287 N/S)
4N***87Pump Group-Fuel Priming; Pump Group-Fuel Priming1
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Fuel Priming Pump (4n9625 N/S)
4N***25Pump Group-Fuel Priming; Fuel Priming Pump Group1
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7s4429 Fuel Transfer Pump Group
7S***29Pump Group-Fuel Transfer; Fuel Transfer Pump Group1
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4n4864 Fuel Transfer Pump Group
Governor And Fuel Injection Pump (4n4016 N/S)
Torque Control (9s3312 N/S)
Service Meter (8s3688 N/S)
8S***88Service Meter; Service Meter Group1
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Service Meter (8s6865 N/S)
Service Meter (9s7993 N/S)
Service Meter (9s8923 N/S)
9s8921 Service Meter Group
Service Meter (9s8732 N/S)
Service Meter (9s5141 N/S)
Service Meter (9s9978 N/S)
9s5730 Service Meter And Tachometer Drive Group
9S***30Service Meter And Tachometer Drive Group1
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Service Meter Drive (9s7127 N/S)
4n3554 Service Meter Drive Group
4n4025 Service Meter Group
4n4026 Service Meter Group
4N***26Service Meter Group; Service Meter Group1
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Service Meter (4n8064 N/S)
Service Meter (4n3337 N/S)
9s7128 Service Meter Group
9l9345 Torque Control Group
2s9519 Torque Control Group
Torque Control (6n2922 N/S)
1p6474 Torque Control Group--Type 2
Torque Control (4n9302 N/S)
Torque Control (4n283 N/S)
Torque Control (4n8924 N/S)--Type 2
Torque Control (4n8924 N/S)--Type 1
Torque Control (2p8592 N/S)
Torque Control (1p6474 N/S)
Torque Control (6n509 N/S)
Torque Control (6n581 N/S)
Torque Control (6n454 N/S)
Torque Control (6n534 N/S)
Torque Control (6n453 N/S)
4n9193 Torque Control Group--Type 2
Torque Control (4n9193 N/S)
Torque Control (4n9193 N/S) - Type 2
6n3610 Torque Control Group
Intake And Exhaust System
Air Compressor (2p9614 N/S)
2p7800 Air Compressor Group
2p7801 Air Compressor Group
2P***01Air Compressor Group; Air Compressor Group1
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2p1830 Air Compressor Group
Air Compressor (2p7801 N/S)
2P***01Air Compressor Group; Air Compressor Group1
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2p7798 Air Compressor Group
Air Compressor (2p9613 N/S)
2P***13Air Compressor Group; Air Compressor Group1
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2p7794 Air Compressor Group
Air Compressor (2p7795 N/S)
2P***95Air Compressor Group; Air Compressor Group1
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Air Compressor (2p7798 N/S)
Air Compressor Lines (2p7799 N/S)
2P***99Air Compressor Lines; Air Compressor Lines Group1
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2p6852 Air Lines Group
Air Lines (2p6842 N/S)
Air Lines (4n3616 N/S)
Air Lines (2p6845 N/S)
Air Lines (4n6071 N/S)
4n4460 Air Lines Group
Air Lines (2p6850 N/S)
Air Lines (2p6847 N/S)--Type 2
Air Lines (2p6848 N/S)
Air Lines (2p6851 N/S)
Air Lines (2p6846 N/S)
Air Lines (2p8876 N/S)
Air Lines (2p6847 N/S)--Type 1
Air Lines (2p6849 N/S)
2P***49Air Lines Group; Air Lines Group1
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Exhaust Pipe (4n5504 N/S)
Exhaust Pipe (2p7352 N/S)
Exhaust Manifold Fastener (4n9586 N/S)
4N***86Fastener Group-Exhaust Manifold; Exhaust Manifold Fastener Group1
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Exhaust Manifold Fastener (2p6534 N/S)
2P***34Fastener Group-Exhaust Manifold; Exhaust Manifold Fastener Group1
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Air Lines (2p6838 N/S)
2P***38Lines Group-Air; Air Lines Group1
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Air Lines (2p6841 N/S)
2P***41Lines Group-Air; Air Lines Group1
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Air Lines (1p9585 N/S)
Air Compressor Lines (2p7797 N/S)
2P***97Lines Group-Air Compressor; Air Compressor Lines Group1
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2p7802 Air Compressor Lines Group
2P***02Lines Group-Air Compressor; Air Compressor Lines Group1
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Turbocharger Oil Lines (2p7315 N/S)
Turbocharger Oil Lines (4n4625 N/S)
4N***25Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group1
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Turbocharger Oil Lines (9l5801 N/S)
9L***01Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group1
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4n3333 Turbocharger Oil Lines Group
4N***33Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group1
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2p6572 Exhaust Manifold Group
2P***72Manifold Group-Exhaust; Exhaust Manifold Group1
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Exhaust Manifold (2p6573 N/S)
Exhaust Manifold (9l5805 N/S)
2p6574 Exhaust Manifold Group
2P***74Manifold Group-Exhaust; Exhaust Manifold Group1
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Exhaust Pipe (2p7351 N/S)
2P***51Pipe Group-Exhaust; Exhaust Pipe Group1
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1p4280 Turbocharger Group
8s9234 Turbocharger Assembly (5s9584 N/S)
8s9237 Turbocharger Assembly (7s1701 N/S)
1p286 Turbocharger Assembly (9s5994 N/S)
9s8997 Turbocharger Assembly (9s5791 N/S--Type 1)
4n9555 Turbocharger Group (1p9552 N/S)
8s8039 Turbocharger Assembly
4n9554 Turbocharger Group--Replaced By 4n9618 Shown On Page 171
8s8198 Turbocharger Assembly (8s8200 N/S)
4n9553 Turbocharger Assembly (9s5791 N/S--Type 2)
Turbocharger (5s9584 N/S)
Turbocharger (9l5802 N/S)
9L***02Turbocharger Group; Turbocharger Group1
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1p9373 Turbocharger Group (1p9552 N/S)
4n9618 Turbocharger Group
9l5345 Turbocharger Group
4n9541 Turbocharger Assembly (9s5994 N/S)
7s1701 Turbocharger Group
Turbocharger Oil Lines (2p7316 N/S)
6n2257 Turbocharger Oil Lines Group
Lower Structure
Oil Pan Fastener (2p6199 N/S)
2P***99Fastener Group-Oil Pan; Oil Pan Fastener Group1
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Oil Pan Fastener (2p6206 N/S)
2P***06Fastener Group-Oil Pan; Oil Pan Fastener Group1
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Oil Pan Fastener (2p6200 N/S)
2P***00Fastener Group-Oil Pan; Fastener Gp-Engine Oil Pan1
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Oil Level Gauge (2p9559 N/S)
2P***59Gauge Group-Oil Level (Dipstick)1
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2p6493 Oil Level Gauge Group
2P***93Gauge Group-Oil Level (Dipstick); -Engine1
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Oil Level Gauge (2p9609 N/S)
2P***09Gauge Group-Oil Level (Dipstick)1
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Oil Level Gauge (4n6059 N/S)
4N***59Gauge Group-Oil Level (Dipstick)1
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Oil Level Gauge (2p6492 N/S)
Oil Pan (2p6174 N/S)
Oil Pan (2p9647 N/S)
Oil Pan (4n6057 N/S)
Oil Pan (2p6152 N/S)
Lubrication System
Oil Filler (4n5140 N/S)
4N***40Oil Filler Group; Oil Filler Group1
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Oil Filler (4n5141 N/S)
Oil Filler (4n5138 N/S)
Breather (1p4244 N/S)
Oil Filler (4n4791 N/S)
4N***91Filler Group-Oil; Oil Filler Group1
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Oil Filler (4n4817 N/S)
4N***17Filler Group-Oil; Oil Filler Group1
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Oil Filler (4n6066 N/S)
4N***66Filler Group-Oil; Oil Filler Group1
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Oil Filler (2p6855 N/S)
Oil Filler (4n5139 N/S)
Oil Filter (2p6475 N/S)
2P***75Filter Group-Engine Oil; Oil Filter Group (10z1 ~ 10z7023)1
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Oil Filter (2p6525 N/S)
Fumes Disposal (2p7446 N/S)
Fumes Disposal (3n3392 N/S)
3N***92Fumes Disposal Group; Fumes Disposal Group1
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Fumes Disposal (4n3325 N/S)
4N***25Fumes Disposal Group; Fumes Disposal Group1
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Fumes Disposal (2p7447 N/S)
Oil Lines (2p6105 N/S)
2P***05Lines Group-Engine Oil; Engine Oil Lines Group1
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Oil Lines (2p6861 N/S)
2P***61Lines Group-Engine Oil; Engine Oil Lines Group1
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Oil Lines (4n9718 N/S)
Oil Lines (2p6109 N/S)
2P***09Lines Group-Engine Oil; Engine Oil Lines Group1
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Oil Filler (2p6856 N/S)
Oil Filter (2p916 N/S)
Oil Lines (4n3694 N/S)
Oil Pump (2p1784 N/S)
2P***84Pump Group-Engine Oil; Engine Oil Pump Group1
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2p1785 Gear Pump Group
2p7830 Gear Pump Group
Oil Pump (2p6537 N/S)
2P***37Pump Group-Oil; Engine Oil Pump Group1
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Rear Structure
Rear Gear (2p8161 N/S)--Accessory Drive
2P***61Drive Group-Accessory; Rear Gear Group-Accessory Drive1
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Rear Gear (2p8162 N/S)--Accessory Drive
2P***62Drive Group-Accessory; Dowel - Frame To Flywheel Housing1
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Rear Gear (2p8159 N/S)--Accessory Drive
2P***59Drive Group-Accessory; Rear Gear Group Accessory Drive1
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Flywheel (2p9646 N/S)
Flywheel (7s3207 N/S)
Flywheel (2p1663 N/S)
Flywheel (9s5783 N/S)
Flywheel (1p9581 N/S)
Flywheel (7s7875 N/S)
Flywheel (7s7877 N/S)
Flywheel (8s1494 N/S)
Flywheel (5s3451 N/S)
Flywheel (9s5784 N/S)
7s7874 Flywheel Group
Flywheel (7s7753 N/S)
2p2505 Flywheel Group
7s5471 Flywheel Group
Flywheel (2p2702 N/S)
7s7878 Flywheel Group
Flywheel Housing (2p6208 N/S)
Flywheel Housing (2p9645 N/S)
Flywheel Housing (2p6154 N/S)
Flywheel Housing Cover (2p6130 N/S)
Flywheel Housing Cover (2p6238 N/S)
Flywheel Housing (2p9644 N/S)
2p6814 Flywheel Housing Group
Rear Gear (2p8622 N/S)--Accessory Drive
2P***22Gear Group-Rear; Rear Gear Group1
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Rear Gear (2p8160 N/S)--Accessory Drive
Rear Gear (2p8621 N/S)--Accessory Drive
2P***21Gear Group-Rear; Rear Gear Group-Accessory Drive1
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2p6129 Flywheel Housing Group
2P***29Housing Group-Flywheel; Flywheel Housing Group1
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Flywheel Housing (2p6156 N/S)
2P***56Housing Group-Flywheel; Flywheel Housing Group1
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2p6119 Flywheel Housing Group
2P***19Housing Group-Flywheel; Flywheel Housing Group1
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Flywheel Housing (4n6055 N/S)
4N***55Housing Group-Flywheel; Flywheel Housing Group1
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Flywheel Housing (4n5825 N/S)
4N***25Housing Group-Flywheel; Flywheel Housing Group1
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2p6166 Flywheel Housing Group
2P***66Housing Group-Flywheel; Flywheel Housing Group1
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Flywheel Housing (2p6119 N/S)
2P***19Housing Group-Flywheel; Flywheel Housing Group1
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Flywheel Housing (2p6122 N/S)
2P***22Housing Group-Flywheel; Flywheel Housing Group1
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Flywheel Housing (2p6131 N/S)
2P***31Housing Group-Flywheel; Flywheel Housing Group1
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Power Take-Off (9s6185 N/S)--Part 1
Power Take-Off (9s6185 N/S)--Part 2
Service Equipment And Supplies
Gasket Kits
Upper Structure
Cylinder Head Cover (2p6530 N/S)
2P***30Cover Group-Cylinder Head; Cylinder Head Cover Group1
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2p6531 Cylinder Head Cover Group
2P***31Cover Group-Cylinder Head; Cylinder Head Cover Group1
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Cylinder Head Cover (9n136 N/S)
9N***36Cover Group-Cylinder Head; Cylinder Head Cover Group1
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Valve Mechanism Cover (2p6516 N/S)
2P***16Cover Group-Valve Mechanism; Valve Mechanism Cover Group1
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4n7446 Cylinder Head Assembly
4N***46Cylinder Head As; Head Assembly-- Parts Service1
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2p6476 Cylinder Head Group
2P***76Cylinder Head Group; Cylinder Head Group1
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Cylinder Head (2p6486 N/S)
2P***86Cylinder Head Group; Cylinder Head Group1
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Cylinder Head (2p6496 N/S)
2P***96Cylinder Head Group; Cylinder Head Group1
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Cylinder Head Fastener (2p6546 N/S)
2P***46Fastener Group-Cylinder Head; Cylinder Head Fastener Group1
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Lifting Eye (1p3840 N/S)
1P***40Lifting Group; Lifting Eye Group1
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2p6526 Valve Mechanism Group
2P***26Valve-Mechanism Group; Valve Mechanism Group1
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140 serial number reference

On the vintage No. 140 grader (pre-140G), the serial/PIN plate is riveted to the main frame near the front, commonly close to the moldboard lift cylinder support or on the cowl/instrument panel area. The plate shows the full serial number as a letter-and-number prefix (e.g. 11R, 14U) followed by the machine's production sequence number. The prefix identifies the model and configuration block (direct drive vs power shift, or plant/production run); the digits after it are just the build sequence within that block, not a year by themselves.

PrefixIdentifies
11R140 DD (direct drive)
14U140 PS (power shift)
24R140 grader, parts-catalog companion block to 11R
10R140 grader (configuration not confirmed)
13U140 grader (configuration not confirmed)
224140 grader (configuration not confirmed)
34R140 grader (configuration not confirmed)
55F140 grader (configuration not confirmed)

Frequently asked questions

What engine does the Cat 140 motor grader use?

The Cat 140 runs a naturally aspirated, mechanical Cat 3306 inline six-cylinder diesel with a mechanical inline fuel injection pump and governor. Earlier production of this grader used the D330-series engine before the running change to the 3306. There is no turbocharger or electronic engine control on this machine.

What is the difference between the 140 DD and 140 PS?

DD (serial prefix 11R) is the direct-drive configuration, built 1970-1974. PS (serial prefix 14U) is the power-shift configuration, built 1971-1974. Both use the same worm-gear circle-drawbar moldboard system and work-tool mounting; the difference is in how power reaches the wheels, not in the grading mechanism.

What replaced the Cat 140?

The Cat 140 was succeeded by the 140B, which led into the later 140G, 140H, and 140K generations. Those later machines are separate designs with different engines and controls and are not interchangeable with this vintage 140 for parts or service specs.

What 140 owners discuss

Why does the blade drift or drop on one side on a vintage Cat 140, and how do owners fix it?
Blade lift and lower run through spring-loaded internal clutches that also act as a holding brake once the control lever is centered. Wear, or a loose pinion-bearing adjustment under the hi-lift gear, lets that clutch slip under load, so one side of the moldboard settles or drops on its own. It tends to get worse as the machine and oil warm up through a work day. Owners report the fix is a pinion-bearing adjustment: back off the lock nut and turn the adjustment in just until it takes up the play, without loading up the control lever. Check main brakes first, since a soft brake can mimic the same drift. Have a qualified mechanic verify blade-lift and brake adjustment before the grader goes back to work, since an uncommanded blade drop is a safety hazard.
What's the real difference in operating a 140 DD versus a 140 PS?
The DD is a straight mechanical gearbox. The operator declutches with a pedal to shift, similar to a truck, and gear changes take a deliberate hand on the levers. The PS runs a power-shift box with hydraulically applied clutches, so gears change without a clutch pedal and shifting is smoother under load. That convenience comes with more to maintain: shift clutches and a converter or clutch pack that can slip or run hot if fluid level and adjustment are neglected. Direct-drive machines are generally simpler to keep running, power-shift machines are easier on the operator over a long shift. Both need their respective clutch or shift-pack adjustments checked on a machine this old.
How much upkeep does the circle and drawbar need on this generation of grader?
The circle-drawbar is worm-gear driven, with wear strips riding between the drawbar, circle, and circle guards, and it takes the brunt of every grading load. It needs daily grease at the circle drive pinion. Wear strips should be checked periodically and replaced once they thin unevenly, before the circle develops play against the drawbar. On a machine this old, assume the strips and pinion bearings are already worn if a prior owner ever skipped greasing, and check for slop in the circle before putting the machine to hard work.
How hard is it to find parts and manuals for a 140 DD or PS today?
Operator's and service manuals for the No. 140 grader were published as one document covering the whole model spread, prefixes 10R, 11R, 13U, 14U, plus 224, 24R, 34R, and 55F. Reprints of those manuals are still findable. New parts are harder: much of the driveline and circle hardware is long out of current parts books, so owners lean on salvage machines being parted out and machine shops to remake or adapt worn pieces. Expect a longer hunt for anything specific to the DD gearbox or PS clutch packs than for common engine wear items.
What should I check before buying or restoring a vintage 140 like this?
Run the engine and cycle the blade through full lift, tilt, and circle rotation, listening for grinding or hard clunks in the circle when it turns, and watch for excess play between the lift cylinders and stirrup arms. Check the circle-drawbar wear strips and pinion for slop, and confirm steering doesn't growl or bind at full lock, which points at the cushion valve. Pull the serial tag and match the prefix, 11R for DD, 14U for PS, or the older 10R/13U/22R/24R/34R/55F range, against the manual before assuming parts interchange, since driveline hardware differs by configuration. Have a qualified mechanic go over brakes, steering, and blade-lift holding before the grader returns to regular work.
What are the known weak points of the engine on a vintage 140?
These graders carry a mechanically governed inline-six from the era Caterpillar's D330 workhorse engine was giving way to the 3306, with a jerk-type injection pump and flyweight governor, no electronics involved. Owners of engines from this family report the same recurring wear items: governor flyweights and races wearing enough to cause hunting or surging at idle, injection pump and injector wear showing up as rough running or smoke, and water pump weep-hole leaks that let coolant work into the system over time. None of this is unique to the grader application, it's the normal service life of a mechanical diesel this old, so periodic pump and governor inspection is worth budgeting for.

Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.

Serial-range & configuration variants

This page covers the Caterpillar 140. Related factory variants of the same model family:

140140

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