Caterpillarmotor grader
Caterpillar 14G
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar 14G is a large articulated-frame motor grader in Cat's 14-series size class, built for a roughly 14-ft (4.3 m) moldboard and heavy road, mining, and haul-road grading work. It ran a Caterpillar 3306T turbocharged diesel, a six-cylinder engine displacing 10.5 liters (640.8 cu in) rated around 134 kW (180 hp) net. Operating weight runs roughly 18.4 to 20.5 tonnes (40,650 to 45,180 lb) depending on configuration and attachments. Cat built the 14G roughly from the late 1980s through the mid-1990s, positioning it between the earlier naturally aspirated 14E and the later, more powerful 14H. Dealers offered it in standard drawbar-circle-moldboard form with options including front or mid-mount scarifiers, rear rippers, moldboard extensions, and snow wing or straight-blade plow attachments for winter service.
The 14G's articulated frame and fully hydraulic blade controls carried forward the layout Cat introduced with its G-series grader redesign, replacing older cable-operated steering and blade systems from the preceding generation. Compared with the 14E it replaced, the 14G's turbocharged engine added roughly 20 percent more power without a major weight increase, improving grade productivity in hard material. Cat then moved the 14-series to a direct-drive, power-shift planetary transmission with the 14H, and later to the current 14M. In today's used and parts market, the 14G remains a working machine on aggregate sites, mining haul roads, and rural road maintenance fleets. Its long-production 3306 engine family and mechanically simple fuel and hydraulic systems keep parts sourcing and field repair straightforward, which is a large part of why these units still see daily use decades after Cat stopped building them.
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 14G specifications
Engine
| Engine model | Cat 3306, 6-cylinder diesel |
| Net power (gears 5-6) | 134 kW (180 hp) |
| Displacement | 10.5 L (640.8 cu in) |
| Cylinders | 6 |
| Emissions tier | Built in the pre-Tier era (1970s-1995 production span); no EPA/Tier emissions certification published for this model |
Weights
| Operating weight (standard configuration) | 18,440 kg (40,653 lb) |
| Ground pressure | Not published in available spec sheets |
Dimensions
| Overall/transport length | 9.22 m (30 ft 3 in) |
| Width over tires | 2.84 m (9 ft 4 in) |
| Height to top of cab | 3.57 m (11 ft 9 in) |
| Wheelbase | 6.45 m (21 ft 2 in) |
| Blade base | 2.87-2.90 m (9.4-9.5 ft), varies slightly by source |
| Standard tire size | 16x24, 10 PR |
Performance
| Forward/reverse gears | 8 forward, 8 reverse |
| Maximum forward travel speed | 43.5-43.6 km/h (27.1 mph) |
| Maximum reverse travel speed | 50.6-50.7 km/h (31.5 mph) |
| Turning radius | 7.9 m (26 ft) |
| Gradeability | Not published in available spec sheets |
Service capacities (summary)
| Fuel tank | 283 L (74.8 US gal) |
| Hydraulic system | 68 L (18 US gal) |
| Engine oil | Not documented for this exact model in available spec sheets; verify with dealer |
| Cooling system | Not documented for this exact model in available spec sheets; verify with dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
14G fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 27 L (7.1 US gal) | Cat DEO (Diesel Engine Oil). SAE 10W-30 for ambient -18°C to 40°C (0°F to 104°F); SAE 15W-40 for -9.5°C to 50°C (15°F to 122°F). Commercial oils meeting Cat ECF-1/ECF-2/ECF-3 are acceptable second-choice. Engine is the Cat 3306 turbocharged direct-injection diesel, six-cylinder, 10.5 L displacement. |
| Cooling system (radiator) | 42 L (11 US gal) | Cat DEAC (Diesel Engine Antifreeze/Coolant), ethylene-glycol base, mixed 1:1 with clean water. Minimum 30% glycol required. 50% concentration gives freeze protection to about -37°C (-34°F); 60% gives protection to about -52°C (-62°F). Requires periodic supplemental coolant additive top-up on the conventional DEAC-type fill used for this machine generation. |
| Fuel tank | 370 L (98 US gal) | No. 2-D distillate diesel fuel meeting Caterpillar's diesel fuel specification (cetane 40 minimum). Blend toward No. 1-D in cold climates for better cold-flow and lower cloud/pour point. |
| Transmission, differential and final drive (combined compartment) | 83 L (22 US gal) | Cat TDTO (Transmission/Drive Train Oil), TO-4 spec. SAE 10W below about 0°C (32°F); SAE 30 for roughly -25°C to 25°C (-13°F to 77°F); SAE 50 for hot climates above about 25°C. This is the powershift transmission, center differential, and bull gear/final drive housing combined into one compartment on this machine. |
| Tandem housings (each side) | 98 L (26 US gal) per side | Cat TDTO, same TO-4 spec and viscosity-by-climate as the transmission/differential/final drive compartment (SAE 10W cold, SAE 30 moderate, SAE 50 hot). Machine has two tandem drive housings (one per rear wheel set), each filled to this capacity separately. |
| Hydraulic system (tank and circuit) | 121 L (32 US gal) | Cat TDTO (this era of Cat motor grader shares transmission and hydraulic filters and commonly shares the same TO-4 oil across power-train and hydraulic compartments) or Cat HYDO hydraulic oil where a dedicated hydraulic fluid is specified. Select viscosity by climate as with the power-train oil (SAE 10W cold to SAE 30 in warm conditions). Verify exact spec for your serial range with a Cat dealer, since hydraulic fluid practice varies across this machine's production run. |
| Grease (chassis lubrication points) | Spec only, not a fill-and-drain compartment | Cat Multipurpose Grease, NLGI grade 2, lithium-complex base, for articulation joint, drawbar and circle wear surfaces, and wheel bearings under low-to-moderate severity and moderate temperatures. Circle and drawbar wear strips on this machine are bronze-alloy and largely eliminate daily grease fittings. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 14G 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 |
|
Servicing the 14G beyond the schedule
Predictive Maintenance & Fluid Analysis
Run S·O·S oil sampling on the 3306T engine, tandem cases, circle housing, and hydraulic tank at every scheduled interval. Turbocharged 3306 engines show elevated copper and lead in oil analysis before turbo bearing failure shows up as smoke or noise - track trends across samples, not single readings. Tandem case samples flag chain and sprocket wear early, before metal-on-metal chatter appears in the field. Circle housing oil analysis catches drive pinion and gear wear before backlash affects grade accuracy. Log results against hours, not calendar time.
Corrective & Common Repairs
Drawbar ball-and-socket wear and circle wear-plate wear are the most common corrective jobs on a 14G under sustained grading duty - inspect at every service and shim or replace before slop shows up in blade control. Turbocharger oil seal leaks on the 3306T show as blue smoke on startup; rebuild kits fix most cases without a full turbo swap. Wheel-lean cylinder and hydraulic hose leaks are common on machines this age; replace seals to factory spec rather than generic substitutes.
Overhaul & Rebuild Points
At major overhaul, focus on the 3306T's cylinder liners, pistons, and turbocharger core, the usual wear points after decades of hard grading duty. Rebuild the circle drive gearbox and reface or replace circle gear teeth once backlash exceeds spec. Tandem chains, sprockets, and bearings wear as a set; replace them together rather than piecemeal to avoid uneven load on new components. Articulation joint bushings and pins need replacement once frame steering develops play, a common issue on high-hour G-series graders.
Seasonal & Environment Servicing
Cold-climate 14Gs need block heater use and verified antifreeze concentration for the 3306T ahead of hard freezes; drain fuel-water separators more often as condensation increases. In hot, dusty grading and haul-road work, shorten air cleaner service intervals and inspect the radiator core for packed dust that starves the turbocharged engine of cooling airflow. Wet-season operation calls for more frequent circle and drawbar greasing, since washed-out lubricant lets grit in and accelerates ball-and-socket wear.
14G fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Coolant Temperature gauge in red zone / high-temp warning lamp | Engine coolant temperature above safe operating range | Low coolant level, blocked or dirty radiator core, slipping or broken fan belt, faulty thermostat | Shut down and let engine cool, check coolant level, inspect radiator fins and fan belt condition, verify thermostat opens correctly |
| Engine Oil Pressure warning lamp with audible alarm | Engine oil pressure has dropped below the safe threshold | Low oil level, worn oil pump, plugged oil filter, internal leak, or a failed oil pressure sending unit | Stop the engine immediately, check oil level and top up or change as needed, inspect for leaks, confirm the sender before returning to service |
| Alternator / Charging System warning lamp | Charging circuit is not producing adequate voltage | Loose or broken alternator belt, faulty alternator, or loose and corroded battery/wiring connections | Check belt tension and condition, inspect battery terminals and wiring, test alternator output |
| Air Cleaner Restriction indicator | Engine intake air filter restriction has reached the service limit | Clogged primary or secondary air filter element, or a collapsed/damaged intake hose | Service or replace the air filter element and inspect intake ducting for damage |
| Hydraulic Filter bypass indicator (pop-up button on filter head) | Hydraulic oil filter has gone into bypass due to restriction | Clogged hydraulic filter element, cold or high-viscosity oil, or contaminated hydraulic oil | Replace the hydraulic filter element and check oil condition and viscosity grade for ambient temperature |
| Parking Brake warning lamp | Park brake is applied or the brake circuit has a fault | Park brake left engaged, low brake system pressure, or a faulty brake switch | Confirm park brake is released before operating; if equipped with a hydraulic-actuated brake, check system pressure and switch operation |
| Transmission / Torque Converter Oil Temperature gauge - high reading | Power-train oil is overheating | Low transmission oil level, plugged oil cooler, or sustained lugging/stall operation | Reduce load and engine lugging, check transmission oil level, inspect the oil cooler for blockage |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
14G attachments & work tools
Moldboard / blade
Standard moldboard is 4.3 m (14 ft), with blade base around 2.9 m (9.4-9.5 ft). Straight blades handle grading, land-leveling and dozing; a hydraulically angled blade adds roughly 30 degrees left/right for material control during dozing-type work. Runs on the drawbar-circle-moldboard (DCM) system common to this grader class.
Cutting edges and end bits
Wear parts include bolt-on cutting edges, moldboard end bits (through-hardened steel), overlays and repair plates, plus circle shoe and drawbar/moldboard wear strips and shims to hold factory circle-to-moldboard tightness. Bit systems (including segmented grader-bit style) are offered as an alternative to full-length edges for high-wear or mining duty.
Front-mounted work tools and lift group
A front lift group (with cylinder and mounting plates) bolts to the nose of the machine and lets the 14G run front blades, straight/angle snow blades, V-plows or reversible/versatile plow blades. Versatile blades use auxiliary hydraulics to switch between straight, angle, U-blade and V-plow modes; extra hydraulic plumbing is needed to power angling or plow functions beyond what's standard.
Rear ripper
Hydraulic rear-mounted multi-shank ripper with straight shanks and replaceable teeth, mounted at the back of the tandem. Rated for around 330 mm (13 in) penetration depth typical of this ripper class; shank/tooth groups and mounting hardware are shared across the 14G/14H/14M ripper line.
Scarifiers
Two mounting positions are offered: a front scarifier on the front lift group for light-duty breakup of compacted material, asphalt skin and rocky subgrade, and a mid-mount scarifier (ahead of the moldboard) giving better cut-depth control, visibility and the ability to fracture harder material during grading passes.
Push block
Bolts to the nose plate in place of, or alongside, front lift-group tools. Serves as counterweight to balance the rear ripper and as a push point when the grader is used to push scrapers or other equipment; painted and dimensioned to OEM configuration.
Fenders and guarding
Bolt-on fenders over the rear tandem control mud, snow and debris throw-up and protect tires and hydraulics. ROPS-certified enclosed or open cab is the standard operator protection structure on this class of grader; heavier screening/guarding is an application-driven add-on rather than a factory-standard 14G item, so confirm specifics with a dealer.
Tires
Tire size varies by configuration/series — commonly 20.50-25 or 16.00x24 (10-ply); verify against the specific machine data plate.
Hydraulic/attachment compatibility notes
Front-mounted tools (blades, plows, scarifier) generally require the front lift group as the mounting interface; angling or V/U-plow functions need auxiliary hydraulic circuits beyond the base machine's circle/blade-lift hydraulics. Ripper, scarifier and front-blade hardware are cross-compatible across the 14G, 14H and 14M family, reflecting a shared parts platform through that model line.
All 14G assemblies by section
Every catalogued assembly group for the Caterpillar 14G. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Blade Controls, Hydraulic & Steering System
9d3805 Mounting And Accumulator Group--Type 1
| 9D***05 | Accumulator And Mounting Group | 1 |
2g9415 Accumulator And Mounting Group
| 2G***15 | Accumulator And Mounting Group | 1 |
9d3805 Mounting And Accumulator Group--Type 2
| 9D***05 | Accumulator And Mounting Group | 1 |
9j2019 Accumulator Group
| 9J***19 | Accumulator Group | 1 |
3g3964 Accumulator Group
| 3G***64 | Accumulator Group | 1 |
3g2351 Accumulator Group
| 3G***51 | Accumulator Group; -Uncharged | 1 |
2g9405 Accumulator Lines Group--Part 2
| 2G***05 | Accumulator Lines Group | 1 |
9d6455 Accumulator Lines Group--Part 2
| 9D***55 | Accumulator Lines Group | 1 |
2g9405 Accumulator Lines Group--Part 1
| 2G***05 | Accumulator Lines Group | 1 |
9d6455 Accumulator Lines Group--Part 1 Of 2
| 9D***55 | Accumulator Lines Group | 1 |
9d3825 Accumulator Wiring Group
| 9D***25 | Accumulator Wiring Group | 1 |
8d9745 Blade Control Arrangement--14 Foot--Factory Installation
| 8D***70 | Follower Group-Shoe | 1 |
| 8D***10 | Follower Group-Wheel | 1 |
| 8D***20 | Follower Group-Wire | 1 |
8d9750 Blade Control Arrangement--16 Foot--Factory Installation
| 8D***70 | Follower Group-Shoe | 1 |
| 8D***10 | Follower Group-Wheel | 1 |
| 8D***20 | Follower Group-Wire | 1 |
8d7306 Air Control Valve Group
| 8D***06 | Basic Air Control Valve Group | 1 |
9d6445 Blade Cushion Accumulator Arrangement
| 2G***05 | Accumulator Lines Group | 1 |
| 2G***15 | Accumulator And Mounting Group | 1 |
| 9D***05 | Accumulator And Mounting Group | 1 |
8j6010 Blade Lift Cylinder Group (Change 1-3)--3.75" Bore X 41.00" Stroke
| 8J***10 | Blade Lift Cylinder Group | 1 |
8j6250 Centershift Cylinder Group (Change 1 & 2)--3.75" Bore X 18.50 Stroke
| 8J***50 | Centershift Cylinder Group | 1 |
2g6840 Centershift Extension Group--Field Installation
| 2G***40 | Centershift Extension Group | 1 |
8j9303 Relief Valve Group
| 8J***03 | Check & Relief Valve Group; (L.H. Check) | 1 |
9j5723 Check Valve Group
| 9J***23 | Check Valve Group | 1 |
8j8419 Check Valve Group--Replaced By 9j5723
| 8J***19 | Check Valve Group | 1 |
9d6385 Hydraulic Control Arrangement
| 8D***00 | Ripper Lines Group | 1 |
| 9D***90 | Valve & Linkage Group; Linkage And Valve Group | 1 |
| 9D***85 | Control Ar-Hydraulic | 1 |
Centershift Lock Control (8d5170 N/S)
| 8D***70 | Control Group-Centershift | 1 |
5d1910 Protection Cover Group--Hydraulic Tank Cap
| 5D***10 | Cover Group-Protection; Protection Cover Group Hydraulic Tank Cap | 1 |
8d4070 Steering Cylinder And Mounting Group
| 8D***70 | Cylinder & Mounting Group | 1 |
8d4810 Articulation Cylinder And Mounting Group
| 8D***10 | Cylinder & Mounting Group | 1 |
8d6195 Centershift Cylinder And Mounting Group
| 8D***95 | Cylinder & Mounting Group | 1 |
8d7710 Blade Tip Cylinder And Mounting Group
| 8D***10 | Cylinder & Mounting Group | 1 |
8d7730 Moldboard Shift Cylinder And Mounting Group
| 8D***30 | Cylinder & Mounting Group | 1 |
8d6130 Blade Lift Cylinder And Mounting Group
| 8D***30 | Cylinder & Mounting Group | 1 |
8j6269 Articulation Cylinder Group (Change 1)--3.50" Bore X 12.10" Stroke
| 8J***69 | Cylinder Group-Articulation | 1 |
8j6359 Blade Shift Cylinder Group (Change 1)--3.75" Bore X 56.75" Stroke
| 8J***59 | Cylinder Group-Blade Centershift | 1 |
8j6256 Drawbar Tip Cylinder Group (Change 2 & 3)--3.00" Bore X 18.10" Stroke--Type 2
| 8J***56 | Cylinder Group-Drawbar Tip | 1 |
8j6256 Drawbar Tip Cylinder Group (Change 1)--3.00" Bore X 18.10" Stroke--Type 1
| 8J***56 | Cylinder Group-Drawbar Tip | 1 |
9d2370 Dial Control Mounting Group
| 9D***70 | Dial Control Mounting Group | 1 |
9d2365 Dial Control Group--Part 1
| 9D***65 | Dial Group-Control; Dial Control Group | 1 |
9d2365 Dial Control Group--Part 2
| 9D***65 | Dial Group-Control; Dial Control Group | 1 |
9d5895 Circle Drive Group--Part 2
| 9D***95 | Drive Group-Circle | 1 |
9d5890 Circle Drive Group--Part 2--Type 3
| 9D***90 | Drive Group-Circle; Circle Drive Group | 1 |
9d5895 Circle Drive Group--Part 1
| 9D***95 | Drive Group-Circle | 1 |
9d5890 Circle Drive Group--Part 1--Type 2
| 9D***90 | Drive Group-Circle; Circle Drive Group | 1 |
9d5890 Circle Drive Group--Part 1--Type 1
| 9D***90 | Drive Group-Circle; Circle Drive Group | 1 |
9d5890 Circle Drive Group--Part 2--Type 2
| 9D***90 | Drive Group-Circle; Circle Drive Group | 1 |
9d5890 Circle Drive Group--Part 2--Type 1
| 9D***90 | Drive Group-Circle; Circle Drive Group | 1 |
9d5890 Circle Drive Group--Part 1--Type 3
| 9D***90 | Drive Group-Circle; Circle Drive Group | 1 |
Pump Drive (8d5000 N/S)
| 8D***00 | Drive Group-Pump | 1 |
9j6456 Filter Group
| 9J***56 | Filter Group | 1 |
8d170 Skid Shoe Follower Group
| 8D***70 | Follower Group-Shoe | 1 |
8d9110 Wheel Follower Group--Type 2
| 8D***10 | Follower Group-Wheel | 1 |
8d9110 Wheel Follower Group--Type 1
| 8D***10 | Follower Group-Wheel | 1 |
8d9120 Wire Follower Group--Type 1
| 8D***20 | Follower Group-Wire | 1 |
8d9120 Wire Follower Group--Type 2
| 8D***20 | Follower Group-Wire | 1 |
9d5461 Harness Assembly
| 9D***61 | Harness Assembly | 1 |
8j8412 Pump Control Head Group--Type 2
| 8J***12 | Head Group-Pump | 1 |
8j8412 Pump Control Head Group--Type 1
| 8J***12 | Head Group-Pump | 1 |
8j8412 Pump Control Head Group--Type 3
| 8J***12 | Head Group-Pump | 1 |
8d5430 Hydraulic Tank Group--Part 1
| 8D***30 | Hydraulic Tank Group | 1 |
8d5430 Hydraulic Tank Group--Part 2
| 8D***30 | Hydraulic Tank Group | 1 |
8d5980 Pump And Mounting Group
| 8D***80 | Implement Pump And Mounting Group | 1 |
8d4080 Leaning Wheel Cylinder And Mounting Group
| 8D***80 | Leaning Wheel Cylinder And Mounting Group | 1 |
9j2012 Lever Group
| 9J***12 | Lever Group | 1 |
8d5970 Blade Lift Group--Part 1
| 8D***70 | Lift Group-Blade | 1 |
8d5970 Blade Lift Group--Part 2
| 8D***70 | Lift Group-Blade | 1 |
8d7050 Power Blade Lines Group
| 8D***50 | Lines Group-Hydraulic | 1 |
Hydraulic Centershift Lines (8d6980 N/S)
| 8D***80 | Lines Group-Hydraulic | 1 |
8d7060 Hydraulic Blade Tip Lines Group
| 8D***60 | Lines Group-Hydraulic | 1 |
8d7040 Leaning Wheel Lines Group
| 8D***40 | Lines Group-Hydraulic | 1 |
Pump Lines (8d7650 N/S)--Part 3 Of 3
| 8D***50 | Lines Group-Hydraulic Pump | 1 |
Pump Lines (8d7650 N/S)--Part 1 Of 3
| 8D***50 | Lines Group-Hydraulic Pump | 1 |
Pump Lines (8d7650 N/S)--Part 2 Of 3
| 8D***50 | Lines Group-Hydraulic Pump | 1 |
8d7020 Articulation Lines Group
| 8D***20 | Lines Group-Hydraulic-Art | 1 |
8d6990 Lift Cylinder Lines Group
| 8D***90 | Lines Group-Lift Cylinder | 1 |
Circle Drive Lines (8d7010 N/S)
| 8D***10 | Lines Group-Motor | 1 |
Steering Lines (8d7030 N/S)--Part 1
| 8D***30 | Lines Group-Steering Oil | 1 |
8d7030 Steering Lines Group--Part 2
| 8D***30 | Lines Group-Steering Oil | 1 |
8d7030 Steering Lines Group--Part 1
| 8D***30 | Lines Group-Steering Oil | 1 |
Steering Lines (8d7030 N/S)--Part 2
| 8D***30 | Lines Group-Steering Oil | 1 |
8d6185 Centershift Lock Group
| 8D***85 | Lock Group-Centershift | 1 |
8j9254 Metering Pump Group
| 8J***54 | Metering Pump Group | 1 |
9j439 Piston Motor Group
| 9J***39 | Motor Group-Piston | 1 |
8d9570 Grade Follower Mounting Group
| 8D***70 | Mounting Group-Grade Follower; Grade Follower Mounting Group | 1 |
8d9585 Grade Follower Mounting Group
| 8D***85 | Mounting Group-Grade Follower; Grade Follower Mounting Group | 1 |
9d7140 Mounting And Pendulum Group
| 9D***40 | Pendulum & Mounting Group; Mounting And Pendulum Group | 1 |
9d7160 Pendulum Group
| 9D***60 | Pendulum Group | 1 |
8j8814 Check Valve Group
| 8J***14 | Pilot Operated Check Valve Group | 1 |
8j1833 Relief Valve Group
| 8J***33 | Pilot Operated Relief Valve Group | 1 |
9j688 Piston Motor Group
| 9J***88 | Piston Motor Group | 1 |
8j6074 Pressure Reducing Valve Group
| 8J***74 | Pressure Reducing Valve Group | 1 |
8j6855 Piston Pump Group--Part 2--Type 2
| 8J***55 | Pump Group-Piston | 1 |
8j6855 Piston Pump Group--Part 2--Type 1
| 8J***55 | Pump Group-Piston | 1 |
8j6855 Piston Pump Group--Part 1--Type 3
| 8J***55 | Pump Group-Piston | 1 |
8j6855 Piston Pump Group--Part 1--Type 2
| 8J***55 | Pump Group-Piston | 1 |
8j6855 Piston Pump Group--Part 1--Type 1
| 8J***55 | Pump Group-Piston | 1 |
8j6855 Piston Pump Group--Part 2--Type 3
| 8J***55 | Pump Group-Piston | 1 |
8j6168 Piston And Gear Pump Group
| 8J***68 | Pump Group-Piston & Gear | 1 |
8j9302 Relief Valve Group
| 8J***02 | Relief Valve Group | 1 |
8d7000 Ripper Lines Group
| 8D***00 | Ripper Lines Group | 1 |
9d2130 Camdrive Shaft Group
| 9D***30 | Shaft Group-Camdrive; Camdrive Shaft Group | 1 |
8d3259 Slip Joint Group
| 8D***59 | Slip Joint Group | 1 |
Slope And Grade Wiring (9d2375 N/S)--Part 1--Type 1
| 9D***75 | Slope And Grade Wiring Group | 1 |
9d2375 Slope And Grade Wiring Group--Part 1--Type 3
| 9D***75 | Slope And Grade Wiring Group | 1 |
9d2375 Slope And Grade Wiring Group--Part 2--Type 3
| 9D***75 | Slope And Grade Wiring Group | 1 |
Slope And Grade Wiring (9d2375 N/S)--Part 2--Type 1
| 9D***75 | Slope And Grade Wiring Group | 1 |
Slope And Grade Wiring (9d2375 N/S)--Part 2--Type 2
| 9D***75 | Slope And Grade Wiring Group | 1 |
Slope And Grade Wiring (9d2375 N/S)--Part 1--Type 2
| 9D***75 | Slope And Grade Wiring Group | 1 |
8j3650 Solenoid Valve Group
| 8J***50 | Solenoid Valve Group | 1 |
Steering Control (8d7500 N/S)
| 8D***00 | Steering Control Group | 1 |
8d7500 Steering Control Group
| 8D***00 | Steering Control Group | 1 |
9j541 Steering Cylinder Group--L.H. (Change 0 & 1)--2.75" Bore X 11.05" Stroke
| 9J***41 | Steering Cylinder Group | 1 |
8j5386 Steering Cylinder Group--R.H. (Change 1 And 2)--2.75" Bore X 11.05" Stroke
| 8J***86 | Steering Cylinder Group | 1 |
9j7020 Metering Pump Group
| 9J***20 | Steering Pump Group | 1 |
9d2440 Grade Follower Storage Group
| 9D***40 | Storage Group-Follow; Grade Follower Storage Group | 1 |
8j384 Swivel Joint Group
| 8J***84 | Swivel Group | 1 |
8d9770 Lines And Valve Group--Part 2--Type 2
8d9770 Lines And Valve Group--Part 2 Of 2--Factory Installation--Type 1
| 8D***70 | Valve & Lines Group; Lines And Valve Group | 1 |
8d9770 Lines And Valve Group--Part 1 Of 2--Factory Installation--Type 1
| 8D***70 | Valve & Lines Group; Lines And Valve Group | 1 |
8d9770 Lines And Valve Group--Part 1--Type 2
| 8D***70 | Valve & Lines Group; Lines And Valve Group | 1 |
Linkage And Valve (8d6215 N/S)--Part 2
| 8D***15 | Valve & Linkage Group | 1 |
9d2890 Linkage And Valve Group
| 9D***90 | Valve & Linkage Group; Linkage And Valve Group | 1 |
Linkage And Valve (8d6215 N/S)--Part 1
| 8D***15 | Valve & Linkage Group | 1 |
3g3707 Check And Relief Valve Group--Field Installation
| 3G***07 | Valve Group-Check | 1 |
8j5458 Check Valve Group
| 8J***58 | Valve Group-Check | 1 |
8j5913 Check Valve Assembly
| 8J***13 | Valve Group-Check; -Tilt, Tip Cylinder | 1 |
9j3469 Combination Valve Group--Type 1
| 9J***69 | Valve Group-Combination; (Combination) | 1 |
9j3469 Combination Valve Group--Type 2
| 9J***69 | Valve Group-Combination; (Combination) | 1 |
8j5902 Control Valve Group
| 8J***02 | Valve Group-Control | 1 |
8j5900 Control Valve Group
| 8J***00 | Valve Group-Control | 1 |
8j5901 Control Valve Group--Blade Tip And Side Shift
| 8J***01 | Valve Group-Control | 1 |
8j5901 Control Valve Group
| 8J***01 | Valve Group-Control | 1 |
8j5904 Control Valve Group--Articulation
| 8J***04 | Valve Group-Control | 1 |
8j5936 Control Valve Group--Blade, Circle Drive, Side Shift And Ripper
| 8J***36 | Valve Group-Control | 1 |
8j5935 Control Valve Group--Blade Lift, Wheel Lean, Center Shift & Articulation
| 8J***35 | Valve Group-Control | 1 |
8j5906 Control Valve Group
| 8J***06 | Valve Group-Control | 1 |
8j5905 Control Valve Group--Blade Lift
| 8J***05 | Valve Group-Control | 1 |
8j5898 Control Valve Group--Ripper--Type 2
| 8J***98 | Valve Group-Control | 1 |
8j6174 Control Valve Group--Blade, Side Shift And Circle Drive
| 8J***74 | Valve Group-Control | 1 |
8j5898 Control Valve Group--Type 1
| 8J***98 | Valve Group-Control | 1 |
9j4986 Pressure Reducing Valve Group
| 9J***86 | Valve Group-Pressure Reducing | 1 |
9j6447 Relief Valve Group
| 9J***47 | Valve Group-Relief | 1 |
8j2011 Relief Valve Group
| 8J***11 | Valve Group-Relief | 1 |
8j8373 Servo Valve Group
| 8J***73 | Valve Group-Servo | 1 |
9j1736 Valve Group
| 9J***36 | Valve Group-Solenoid; Gp.(Solenoid) | 1 |
9j1735 Valve Group
| 9J***35 | Valve Group-Solenoid; Gp.(Solenoid) | 1 |
9j1762 Unloading Valve Group
| 9J***62 | Valve Group-Unloading | 1 |
8j5385 Wheel Lean Cylinder Group (Change 1)--3.50" Bore X 6.00" Stroke
| 8J***85 | Wheel Lean Cylinder Group | 1 |
Brakes
8d6833 Air Control Valve Group
| 8D***33 | Air Control Valve Group | 1 |
8d2180 Service Brake Group
| 8D***80 | Brake Group | 1 |
Parking Brake Control (8d5900 N/S)
| 8D***00 | Control Group-Brake | 1 |
2g9713 Relay Valve Group
| 2G***13 | Relay Valve Group | 1 |
4f6941 Release Valve Assembly
| 4F***41 | Release Valve Assembly | 1 |
8d5235 Service Brake Control Group--Part 2 Of 3
| 8D***35 | Service Brake Control Group | 1 |
8d5235 Service Brake Control Group--Part 1 Of 3
| 8D***35 | Service Brake Control Group | 1 |
Service Brake Control (8d5235 N/S)--Part 2 Of 3
| 8D***35 | Service Brake Control Group | 1 |
Service Brake Control (8d5235 N/S)--Part 1 Of 3
| 8D***35 | Service Brake Control Group | 1 |
Service Brake Control (8d5235 N/S)--Part 3 Of 3
| 8D***35 | Service Brake Control Group | 1 |
8d5235 Service Brake Control Group--Part 3 Of 3
| 8D***35 | Service Brake Control Group | 1 |
5d4382 Air Valve Assembly
| 5D***82 | Valve As-Air Control; -Parking Brake | 1 |
Cab, Gauges And Accessories
9d5770 Air Conditioner Group
| 9D***70 | Air Conditioner And Mounting Group | 1 |
9d3770 Air Conditioner Arrangement
| 2G***80 | Air Conditioner Lines Group | 1 |
| 3P***66 | Compressor Ar | 1 |
| 9D***50 | Condenser & Mounting Group | 1 |
9d1960 Air Conditioner Group--Part 1
| 9D***60 | Air Conditioner Group | 1 |
9d1960 Air Conditioner Group--Part 2
| 9D***60 | Air Conditioner Group | 1 |
9d6265 Air Conditioner Lines Group--Type 1
| 9D***65 | Air Conditioner Lines Group | 1 |
9d6265 Air Conditioner Lines Group--Type 2
| 9D***65 | Air Conditioner Lines Group | 1 |
2g7180 Air Conditioner Lines Group
| 2G***80 | Air Conditioner Lines Group | 1 |
9d6265 Air Conditioner Lines Group--Type 3--Replaced By 2g7180 Shown On Page 205e-1b
| 9D***65 | Air Conditioner Lines Group | 1 |
Air Horn (8d110 N/S)
| 8D***10 | Air Horn Group | 1 |
9d2740 Floormat Group
| 9D***40 | Cab Floormat Group | 1 |
9d4550 Cab Heater Group
| 9D***50 | Cab Heater Group | 1 |
7n4297 Refrigerant Compressor Group
| 7N***97 | Clutch & Refrig Compressor Group | 1 |
3p66 Refrigerant Compressor Arrangement
| 1P***83 | Compressor Group-Refrigerant; Refrigerant Compressor Group | 1 |
| 2P***43 | Damper Group; Damper Group | 1 |
| 3P***66 | Compressor Ar | 1 |
1p2780 Refrigerant Compressor Group--Type 2
| 1P***80 | Compressor Group-Refrigerant | 1 |
1p9983 Refrigerant Compressor Group--Type 1
| 1P***83 | Compressor Group-Refrigerant; Refrigerant Compressor Group | 1 |
1p2780 Refrigerant Compressor Group--Type 1
| 1P***80 | Compressor Group-Refrigerant | 1 |
1p9983 Refrigerant Compressor Group--Type 2
| 1P***83 | Compressor Group-Refrigerant; Refrigerant Compressor Group | 1 |
1p9983 Refrigerant Compressor Group--Type 3
| 1P***83 | Compressor Group-Refrigerant; Refrigerant Compressor Group | 1 |
9d1650 Mounting And Condenser Group
| 9D***50 | Condenser & Mounting Group | 1 |
2p9643 Damper Group
| 2P***43 | Damper Group; Damper Group | 1 |
8d8310 Defrosting Fan Group--Rear--Replaced By 2g1025 Shown On Page 202a
| 8D***10 | Defrosting Fan Group | 1 |
2g1025 Defrosting Fan Group--Rear
| 2G***25 | Defrosting Fan Group | 1 |
9d1365 Cab Door Group--Tinted
| 9D***65 | Door Group-Cab | 1 |
9d1832 Door Group--L.H.--Type 1
| 9D***32 | Door Group-L.H. | 1 |
9d1832 Door Group--L.H.--Type 2
| 9D***32 | Door Group-L.H. | 1 |
9d1831 Door Group--R.H.--Type 2
| 9D***31 | Door Group-R.H. | 1 |
9d1831 Door Group--R.H.--Type 1
| 9D***31 | Door Group-R.H. | 1 |
5d2856 Defroster Fan Group--24 Volt
| 5D***56 | Fan Group-Defrosting | 1 |
9d3330 Fan Group
| 9D***30 | Fan Group-Defrosting; Defrosting Fan Group | 1 |
8d9655 Gauge Group
| 8D***55 | Gauge Group | 1 |
9d2780 Wiring Harness Assembly
| 9D***80 | Harness Assembly | 1 |
9d8707 Harness Assembly
| 9D***07 | Harness Assembly | 1 |
9d9183 Harness Assembly
| 9D***83 | Harness Assembly | 1 |
9d3180 Basic Heater Group
| 9D***80 | Heater Group | 1 |
5d6998 Air Horn Assembly
| 5D***98 | Horn Group-Air | 1 |
8s2541 Air Filter Service Indicator Group
| 8S***41 | Indicator Group | 1 |
Articulation Indicator (8d6235 N/S)
| 8D***35 | Indicator Group-Articulation | 1 |
8d8290 Dome Lighting Group
| 8D***90 | Lighting Group-Dome; Dome Lighting Group | 1 |
2g8245 Rear View Mirror Group--Inside--With Convex Glass
| 2G***45 | Mirror Group-Rear View; Mirror Group--Review View | 1 |
2g8450 Rear View Mirror Group--Convex Glass
| 2G***50 | Mirror Group-Rear View | 1 |
8j6628 Ripper Mounting Group
| 8J***28 | Mounting Group-Ripper; Ripper Mounting Group | 1 |
Operator Console (8d5990 N/S)--Side View--Part 1 Of 2
| 8D***90 | Operator Console Group | 1 |
Operator Console (8d5990 N/S)--Front View--Part 2 Of 2
| 8D***90 | Operator Console Group | 1 |
9d570 Panel Group--Rear
| 9D***70 | Panel Group-Cab; Rear Tinted Cab Panel Group | 1 |
9d1385 Cab Panel Group--Tinted
| 9D***85 | Panel Group-Cab | 1 |
9d3270 Rear View Mirror Group--Inside--Replaced By 2g1270
| 9D***70 | Rear View Mirror Group | 1 |
2g1270 Rear View Mirror Group
| 2G***70 | Rear View Mirror Group | 1 |
9d3160 Rear View Mirror Group--Flat Glass
| 9D***60 | Rear View Mirror Group-Flat Glass | 1 |
2g6005 Roll-Over Protective Structure Group--Open
| 2G***05 | Roll-Over Protective Structure Group | 1 |
8d7680 Roll-Over Protective Structure Group
| 8D***80 | Roll-Over Protective Structure Group | 1 |
8d7660 Roll-Over Protective Structure Group--Type 1
| 8D***60 | Roll-Over Protective Structure Group; Roll-Over Protective Structure | 1 |
8d7660 Roll-Over Protective Structure Group--Type 2
| 8D***60 | Roll-Over Protective Structure Group; Roll-Over Protective Structure | 1 |
9d3040 Roll-Over Protective System Arrangement--Open--Type 2
| 8D***80 | Roll-Over Protective Structure Group | 1 |
| 9D***70 | Panel Group-Cab; Rear Tinted Cab Panel Group | 1 |
| 9D***40 | Roll-Over Protective System | 1 |
9d3040 Roll-Over Protective System Arrangement--Open--Type 1
| 8D***80 | Roll-Over Protective Structure Group | 1 |
| 8D***35 | Seat Belt Group | 1 |
| 9D***70 | Panel Group-Cab; Rear Tinted Cab Panel Group | 1 |
2g6220 Roll-Over Protective System--Open
| 2D***06 | Plug (1 In. Dia.); To Support Assembly | 1 |
| 2G***85 | Sound Suppression Liner Group | 1 |
| 2G***05 | Roll-Over Protective Structure Group | 1 |
9d3050 Roll-Over Protective System Arrangement--Enclosed--Type 1
| 8D***50 | Windshield Group | 1 |
| 8D***60 | Roll-Over Protective Structure Group; Roll-Over Protective Structure | 1 |
| 8D***90 | Wiper Group-Windshield; Windshield Wiper Group | 1 |
9d3050 Roll-Over Protective System Arrangement--Enclosed--Type 2
| 2G***70 | Rear View Mirror Group | 1 |
| 2G***45 | Cab Floormat | 1 |
| 8D***50 | Windshield Group | 1 |
8d9940 Seat Belt Group
| 8D***40 | Seat Belt Group | 1 |
8d9935 Seat Belt Group
| 8D***35 | Seat Belt Group | 1 |
8d7830 Seat Group
| 8D***30 | Seat Group | 1 |
9k682 Shaft And Pivot Assembly
| 9K***82 | Shaft & Link As | 1 |
9d4510 Shaft And Link Assembly
| 9D***10 | Shaft & Pivot As | 1 |
2g5985 Sound Suppression Liner Group--Cab
| 2G***85 | Sound Suppression Liner Group | 1 |
9d3530 Noise Suppression Liner Group--Cab
| 9D***30 | Sound Suppression Liner Group | 1 |
8d7820 Seat Group
| 8D***20 | Suspension Seat Group | 1 |
8d8570 Tachograph Drive Group--Type 1
| 8D***70 | Tachograph Drive Group | 1 |
8d8570 Tachograph Drive Group--Type 2
| 8D***70 | Tachograph Drive Group | 1 |
8d8570 Tachograph Drive Group--Type 3
| 8D***70 | Tachograph Drive Group | 1 |
2g5250 Tachograph Drive Group
| 2G***50 | Tachograph Drive Group | 1 |
8j1434 Tooth Group
| 8J***34 | Tooth Group-Scarifier; -Straight | 1 |
9d6545 Vandalism Guard Group--Replaced By 2g4350 Shown On Page 212a
| 9D***45 | Vandalism Guard Group | 1 |
2g4350 Vandalism Guard Group
| 2G***50 | Vandalism Guard Group | 1 |
9d8175 Vandalism Lock Group
| 8S***49 | Padlock Group; To Seat Support, To Hood And Hydraulic Hand Control To Tank | 4 |
| 9D***75 | Vandalism Lock Group | 1 |
9d8185 Vandalism Lock Group
| 8S***49 | Padlock Group; To Seat Support, To Hood And Hydraulic Hand Control To Tank | 6 |
| 9D***85 | Vandalism Lock Group | 1 |
8d7550 Cab Windshield Group--Tinted
| 8D***50 | Windshield Group | 1 |
9d3722 Windshield Washer Group
| 9D***22 | Windshield Washer Assembly | 1 |
8d9360 Windshield Washer Group--Type 1
| 8D***60 | Windshield Washer Group | 1 |
8d9360 Windshield Washer Group--Type 2
| 8D***60 | Windshield Washer Group | 1 |
2g8010 Rear Windshield Wiper Group
| 2G***10 | Windshield Wiper Group-Rear | 1 |
9d2848 Basic Wiper Group
| 9D***48 | Wiper Group | 1 |
8d7690 Windshield Wiper Group--Front--Part 2--Type 2
| 8D***90 | Wiper Group-Windshield; Windshield Wiper Group | 1 |
8d7690 Windshield Wiper Group--Front--Part 1--Type 2
| 8D***90 | Wiper Group-Windshield; Windshield Wiper Group | 1 |
8d7690 Windshield Wiper Group--Front--Part 1--Type 1
| 8D***90 | Wiper Group-Windshield; Windshield Wiper Group | 1 |
8d7732 Basic Wiper Group
| 8D***32 | Wiper Group-Windshield | 1 |
8d7690 Windshield Wiper Group--Front--Part 2--Type 1
| 8D***90 | Wiper Group-Windshield; Windshield Wiper Group | 1 |
8d8300 Windshield Wiper Group--Rear
| 8D***00 | Wiper Group-Windshield-Rear | 1 |
9d2500 Air Conditioner Wiring Group--Type 2
| 9D***00 | Wiring Group-Air Conditioner; Air Conditioner Wiring Group | 1 |
9d2500 Air Conditioner Wiring Group
| 9D***00 | Wiring Group-Air Conditioner; Air Conditioner Wiring Group | 1 |
9d3580 Cab Wiring Group--Type 2
| 9D***80 | Wiring Group-Cab; Cab Wiring Group | 1 |
9d3580 Cab Wiring Group--Type 1
| 9D***80 | Wiring Group-Cab; Cab Wiring Group | 1 |
Chassis
2g2960 Fast Fill Fuel Adapter Group--Type 2
| 2G***60 | Adapter Group-Fast Fill Fuel | 1 |
2g2960 Fast Fill Fuel Adapter Group--Type 1
| 2G***60 | Adapter Group-Fast Fill Fuel | 1 |
8d7460 Air Reservoir Tank Group
| 8D***60 | Air Tank Group | 1 |
8d7590 Battery Box Group
| 8D***90 | Battery Box Group | 1 |
8d4480 Rear Bumper Group
| 8D***80 | Bumper Group-Rear | 1 |
9d2360 Camdrive Group--Part 2 Of 2
| 9D***60 | Camdrive Group | 1 |
9d2360 Camdrive Group--Part 1 Of 2
| 9D***60 | Camdrive Group | 1 |
8d6760 Frame And Case Group
| 8D***60 | Case & Frame Group | 1 |
8d5919 Circle And Beam Assembly
| 8D***19 | Circle & Beam As | 1 |
9d4927 Circle Assembly
| 9D***27 | Circle Assembly | 1 |
Circle (8d6680 N/S)
| 8D***80 | Circle Group | 1 |
9d2425 Circle Group--Factory Installation
| 9D***25 | Circle Group; Circle Group | 1 |
9d630 Dust Cover Group
| 9D***30 | Cover-Dust | 1 |
9d2445 Drawbar Group--Part 2 Of 2--Type 2
| 9D***45 | Drawbar Group | 1 |
8d5100 Drawbar Group
| 8D***00 | Drawbar Group | 1 |
9d2445 Drawbar Group--Part 2 Of 2--Factory Installation
| 9D***45 | Drawbar Group | 1 |
9d2445 Drawbar Group--Part 1 Of 2--Factory Installation
| 9D***45 | Drawbar Group | 1 |
9d2445 Drawbar Group--Part 1 Of 2--Type 2
| 9D***45 | Drawbar Group | 1 |
8d8980 Drive Shaft Guard Group
| 8D***80 | Drive Shaft Guard Group | 1 |
9d3500 Fast Fill Fuel Adapter Group
| 9D***00 | Fast Fill Fuel Adapter Group | 1 |
9d3505 Fast Fill Fuel Adapter Group
| 9D***05 | Fast Fill Fuel Adapter Group | 1 |
9d6355 Fast Fill Fuel Adapter Group
| 9D***55 | Fast Fill Fuel Adapter Group | 1 |
9d6360 Fast Fill Fuel Adapter Group--Replaced By 2g2960 Shown On Page 108a
| 9D***60 | Fast Fill Fuel Adapter Group | 1 |
2g2970 Fast Fill Fuel Adapter Group
| 2G***70 | Fast Fill Fuel Adapter Group | 1 |
9d2430 Front Frame Group--Type 2
| 9D***30 | Frame Group-Front; Front Frame Group | 1 |
9d2430 Front Frame Group--Type 1
| 9D***30 | Frame Group-Front; Front Frame Group | 1 |
9d2430 Front Frame Group--Type 3
| 9D***30 | Frame Group-Front; Front Frame Group | 1 |
8d3670 Front Axle Group--Part 1 Of 2
| 8D***70 | Front Axle Group | 1 |
8d3670 Front Axle Group--Part 2 Of 2
| 8D***70 | Front Axle Group | 1 |
8d7260 Front Frame Group
| 8D***60 | Front Frame Group | 1 |
Rear Platform Guard (9d210 N/S)--Type 1
| 9D***10 | Guard Group-Platform; Platform Guard Group--Rear | 1 |
Front Platform Guard (8d6790 N/S)
| 8D***90 | Guard Group-Platform; Platform Guard Group--Front | 1 |
9d210 Rear Platform Guard Group--Type 2
| 9D***10 | Guard Group-Platform; Platform Guard Group--Rear | 1 |
8d2560 Articulated Hitch Group
| 8D***60 | Hitch Group-Articulated | 1 |
8d7150 Hood Group
| 8D***50 | Hood Group | 1 |
9d6560 Hood Side Door Group
| 9D***60 | Hood Side Door Group | 1 |
9d3260 Push Plate Group
| 9D***60 | Plate Group-Push | 1 |
5d1920 Protection Cover Group--Fuel Tank Cap
| 5D***20 | Protection Cover Group-Fuel Tank Cap; Protection Cover Group | 1 |
Radiator Guard And Support (8d6720 N/S)
| 8D***20 | Radiator Guard & Support Group | 1 |
8d6720 Radiator Guard And Support Group
| 8D***20 | Radiator Guard & Support Group | 1 |
9d2475 Ball Resolver Group
| 9D***75 | Resolver Group-Ball | 1 |
9d1405 Step Group
| 9D***05 | Step Group | 1 |
Fuel Tank (8d6800 N/S)--100 Gallon
| 8D***00 | Tank Group-Fuel | 1 |
9d2700 Tool Box Group
| 9D***00 | Tool Box Group | 1 |
2g9000 Fast Fill Adapter Group
| 2G***00 | Valve As-Tank | 1 |
Engine Related Parts
Air Cleaner (2p8877 N/S)
| 2P***77 | Air Cleaner Group | 1 |
Alternator And Fan Support (8d7990 N/S)
| 8D***90 | Alternator And Fan Support Group | 1 |
Engine Mounting Hardware (1p9573 N/S)
| 1P***73 | Bolt Group-Engine Mounting | 1 |
Governor Control (8d5120 N/S)--Part 3 Of 3
| 8D***20 | Control Group-Governor | 1 |
Governor Control (8d5120 N/S)--Part 2 Of 3
| 8D***20 | Control Group-Governor | 1 |
Governor Control (8d5120 N/S)--Part 1 Of 3
| 8D***20 | Control Group-Governor | 1 |
Hydraulic Oil Cooler (1p9575 N/S)
| 1P***75 | Cooler Group-Hydraulic Oil | 1 |
Fan Belt Drive (3p59 N/S)
4n8299 Dust Ejector Group
| 4N***99 | Dust Ejector Group | 1 |
4n7395 Dust Ejector Group
| 4N***95 | Dust Ejector Group | 1 |
4n8298 Exhaust Extension Group
| 4N***98 | Extension Group-Exhaust | 1 |
4n4101 Exhaust Extension Group
| 4N***01 | Extension Group-Exhaust; Exhaust Extension Group | 1 |
Blower Fan (1p9570 N/S)
| 1P***70 | Fan Group-Blower | 1 |
2p6854 Oil Filler Group
| 2P***54 | Filler Group-Oil; Protection Cover Group Oil Filler Cap | 1 |
9d2190 Fuel Lines Group
| 9D***90 | Fuel Lines Group | 1 |
4n3586 Jacket Water Heater Group
| 4N***86 | Heater Group-Jacket Water; (120v) | 1 |
9d4900 High Speed Oil Change Group--Replaced By 2g3000
| 9D***00 | High Speed Oil Change Group | 1 |
2p698 Oil Drain Extension Hose Assembly
| 2P***98 | Hose As-Oil Drain Extension | 1 |
Water Lines (8d8195 N/S)
| 8D***95 | Lines Group-Water | 1 |
4n8296 Muffler Group
| 4N***96 | Muffler Group | 1 |
2p6853 Muffler Group
| 2P***53 | Muffler Group; Muffler Group | 1 |
2g3000 High Speed Oil Change Group
| 2G***00 | Oil Change Group-High Speed | 1 |
1p9577 Oil Drain Extension Group
| 1P***77 | Oil Drain Extension Group | 1 |
9d5465 Protection Cover Group--Radiator Cap
| 9D***65 | Protection Cover Group-Radiator Cap | 1 |
2p9639 Pulley Group
| 2P***39 | Pulley Group | 1 |
2p9640 Radiator Group
| 2P***40 | Radiator Group | 1 |
Radiator (2p9640 N/S)
| 2P***40 | Radiator Group | 1 |
9d5410 Noise Suppression Arrangement
| 2P***53 | Muffler Group; Muffler Group | 1 |
| 4N***01 | Extension Group-Exhaust; Exhaust Extension Group | 1 |
| 4N***95 | Dust Ejector Group | 1 |
Engine Support (6n2803 N/S)
| 6N***03 | Support Group-Engine | 1 |
Implements
2g6075 Blade Extension Group--R.H.--2 Foot
| 2G***75 | Blade Extension Group | 1 |
2g6085 Blade Extension Group--L.H.--2 Foot
| 2G***85 | Blade Extension Group | 1 |
9d1780 Blade Group--16 Foot
| 9D***80 | Blade Group | 1 |
9d1790 Blade Group--14 Foot
| 9D***90 | Blade Group | 1 |
9d2410 Blade Group--16 Foot--Type 1
| 9D***10 | Blade Group; Blade Group--4877 mm (16 Foot) | 1 |
9d2405 Blade Group--14 Foot--Type 2
| 9D***05 | Blade Group; Blade Control--4267 mm(14 Foot) | 1 |
9d2405 Blade Group--14 Foot--Type 1
| 9D***05 | Blade Group; Blade Control--4267 mm(14 Foot) | 1 |
9d2410 Blade Group--16 Foot--Type 2
| 9D***10 | Blade Group; Blade Group--4877 mm (16 Foot) | 1 |
3g5189 Ripper Lift Cylinder Group (Chg. 0) 127 Mm (5.00") Bore X 495.3 Mm (19.50" Stroke)
| 3G***89 | Cylinder Group-Ripper Lift; Ripper Lift Cylinder Group | 1 |
9d2170 Cutting Edge Replacement Group--Curved 14 Foot--.75" Thick
| 7D***77 | Edge-Cutting; (7-Ft Each) | 2 |
| 9D***70 | Edge Group-Cutting; Cutting Edge Group--Curved 14 Foot-- | 1 |
| 9D***80 | End Bit (R.H.) | 1 |
9d2160 Cutting Edge Replacement Group--Curved 16 Foot--.75" Thick
| 7D***49 | Edge-Cutting; (Wide-19 mm Thk) | 2 |
| 9D***60 | Edge Group-Cutting; Cutting Edge Group--Curved 16 Foot-- | 1 |
| 9D***80 | End Bit (R.H.) | 1 |
8j7953 Ripper Lines Group--Type 1
| 8J***53 | Lines Group-Ripper; Ripper Lines Group | 1 |
8j7953 Ripper Lines Group--Type 2
| 8J***53 | Lines Group-Ripper; Ripper Lines Group | 1 |
9j907 14g Ripper Arrangement
| 3G***62 | Ripper Lift Cylinder Group; Lift Cylinder Group | 1 |
| 3G***89 | Cylinder Group-Ripper Lift; Ripper Lift Cylinder Group | 1 |
| 8J***28 | Mounting Group-Ripper; Ripper Mounting Group | 1 |
9j908 Basic Ripper Arrangement
| 9J***08 | Ripper Ar-3 Shank; Ripper Arrangement | 1 |
3g1762 Ripper Lift Cylinder Group (Change 0)--5.00" Bore X 19.50" Stroke
| 3G***62 | Ripper Lift Cylinder Group; Lift Cylinder Group | 1 |
8j7298 Ripper Lift Cylinder Group (Change 1-2)--5.50" Bore X 19.50" Stroke--Type 2
| 8J***98 | Ripper Lift Cylinder Group; Lift Cylinder Group | 1 |
8j7298 Ripper Lift Cylinder Group (Change 0)--5.50" Bore X 19.50" Stroke--Type 1
| 8J***98 | Ripper Lift Cylinder Group; Lift Cylinder Group | 1 |
8j7298 Ripper Lift Cylinder Group (Change 3)--5.50" Bore X 19.50" Stroke--Type 3--
| 8J***98 | Ripper Lift Cylinder Group; Lift Cylinder Group | 1 |
9d3845 Stabilizer Group
| 9D***45 | Stabilizer Group; Stabilizer Group | 1 |
Power Train - Power Transmission Unit
9d9840 Transmission Adapter Group
| 9D***40 | Adapter Group-Transmission | 1 |
8d6813 Air Control Valve Group
| 8D***13 | Air Control Valve Group | 1 |
2p6899 Transmission Case Assembly
| 2P***99 | Case As-Tmsn | 1 |
8d2170 Chain Group
| 8D***70 | Chain Group | 1 |
8d5205 Clutch Control Group
| 8D***05 | Control Group-Clutch | 1 |
Transmission Control (8d7370 N/S)--Part 1 Of 2
| 8D***70 | Control Group-Transmission | 1 |
Transmission Control (8d7370 N/S)--Part 2 Of 2
| 8D***70 | Control Group-Transmission | 1 |
2p5810 Transmission Hydraulic Control Group
| 2P***10 | Control Group-Transmission Hydraulic | 1 |
9d5450 Protection Cover Group--Transmission Oil Filler Cap
| 9D***50 | Cover Group | 1 |
9d5455 Protection Cover Group--Transmission Gauges
| 9D***55 | Cover Group-Tmsn Gauge Protection | 1 |
Differential And Bevel Gear (8d5415 N/S)--Part 1 Of 2
| 8D***15 | Differential & Bevel Gear Group | 1 |
Differential And Bevel Gear (8d5415 N/S)--Part 2 Of 2
| 8D***15 | Differential & Bevel Gear Group | 1 |
8d5405 Differential Group
| 8D***05 | Differential Group | 1 |
8d5240 Differential Lock Control Group
| 8D***40 | Differential Lock Control Group | 1 |
2p7014 Differential Lock Group
| 2P***14 | Differential Lock Valve Group | 1 |
6p2218 Filter Base Service Group
| 6P***18 | Filter Base Service Group | 1 |
6p2091 Transmission Filter Group
| 6P***91 | Filter Group-Transmission | 1 |
Final Drive (8d2860 N/S)
| 8D***60 | Final Drive Group | 1 |
8d2860 Final Drive Group
| 8D***60 | Final Drive Group | 1 |
8d9990 Transmission Oil Cooler Lines Group
| 8D***90 | Lines Group-Power Train Cooler | 1 |
Transmission Lines (2p9194 N/S)
| 2P***94 | Lines Group-Power Train Oil | 1 |
Planetary Transmission (2p5800 N/S)--Part 3 Of 3
| 2P***00 | Planetary Group | 1 |
Planetary Transmission (2p5800 N/S)--Part 2 Of 3
| 2P***00 | Planetary Group | 1 |
Planetary Transmission (2p5800 N/S)--Part 1 Of 3
| 2P***00 | Planetary Group | 1 |
2p3645 Gear Pump Group
| 2P***45 | Pump Group-Gear | 1 |
Transmission Pump (2p6876 N/S)
| 2P***76 | Pump Group-Gear | 1 |
2p5815 Selector And Pressure Control Valve Group
| 2P***15 | Selector And Pressure Control Valve Group | 1 |
6p3226 Selector And Pressure Control Valve Group
| 6P***26 | Selector And Pressure Control Valve Group | 1 |
Covers And Tandem (7d9430 N/S)
| 7D***30 | Tandem & Cover Group | 1 |
Transfer Case And Gear (2p6901 N/S)--Part 1 Of 3
| 2P***01 | Transfer Case & Gear Group | 1 |
Transfer Case And Gear (2p6901 N/S)--Part 2 Of 3
| 2P***01 | Transfer Case & Gear Group | 1 |
Transfer Case And Gear (2p6901 N/S)--Part 3 Of 3
| 2P***01 | Transfer Case & Gear Group | 1 |
3p301 Transmission Arrangement
| 3P***01 | Transmission Ar; Transmission Arrangement | 1 |
Transmission Filter (1p8253 N/S)
| 1P***53 | Transmission Filter Group | 1 |
Transmission Mounting Hardware (9d2310 N/S)
| 9D***10 | Transmission Mounting Hardware Group | 1 |
8d7560 Transmission Oil Filler Group
| 8D***60 | Transmission Oil Filler Group | 1 |
2p4548 Valve Assembly
| 2P***48 | Valve As | 1 |
2p5814 Selector And Pressure Control Valve Group
| 2P***14 | Valve Group; -Direction | 1 |
2p5812 Unit Test Valve Group
| 2P***12 | Valve Group | 1 |
2p5811 Relief Control Valve Group
| 2P***11 | Valve Group | 1 |
2p5816 Selector And Pressure Control Valve Group
| 2P***16 | Valve Group; -Modulating Reducing-Speed | 1 |
6p8226 Valve Group
| 6P***26 | Valve Group | 1 |
2p5813 Pilot Valve Group
| 2P***13 | Valve Group-Pilot | 1 |
9d5802 Wheel Group--17.00 X 25 Wheel Size--Type 1
| 9D***02 | Wheel Group | 1 |
8d1720 Wheel Group
| 8D***20 | Wheel Group | 1 |
9d5802 Wheel Group--17.00 X 25 Wheel Size--Type 2
| 9D***02 | Wheel Group | 1 |
Service Equipment And Supplies
8f9866 Grease Gun
| 8F***66 | Grease Gun As | 1 |
Name Plates And Transfers
| 1S***88 | Film-- Drain Valve; --On Each Side Of Radiator Support | 2 |
| 3F***35 | Screw-Drive; (No 10x0.375-In) | 4 |
| 4B***58 | Screw (Identification Plate) Mounting | 12 |
9s7978 Hand Tool Group
| 9S***78 | Tool Group-Hand | 1 |
Starting And Electrical System
9d5680 Alternator Arrangement--24 Volt, 50 Ampere
| 8D***29 | Wire Assembly | 1 |
| 9D***80 | Alternator Arrangement | 1 |
| 9D***61 | Relay 12 Volt | 1 |
2p1204 Alternator Group--24 Volt, 19 Ampere
| 2P***04 | Alternator Group | 1 |
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 1 Of 2--Type 1
| 5S***88 | Alternator Group-Charging | 1 |
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 1 Of 2--Type 2
| 5S***88 | Alternator Group-Charging | 1 |
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 2 Of 2--Type 2
| 5S***88 | Alternator Group-Charging | 1 |
1p9572 Alternator Group--24 Volt, 19 Ampere
| 1P***72 | Alternator Group-Charging | 1 |
5s9088 Alternator Assembly--24 Volt, 50 Ampere--Part 2 Of 2--Type 1
| 5S***88 | Alternator Group-Charging | 1 |
9s6693 Alternator Group--24 Volt, 50 Ampere
| 1H***36 | Wire Assembly--Alternator To Engine; Wire Assembly- Alternator To Engine | 1 |
| 5M***14 | Pipe Plug Cylinder Block Oil Pressure | 1 |
| 5S***88 | Alternator Group-Charging | 1 |
9d5540 Back-Up Warning Group--Replaced By 2g5090 Shown On Page 48a
| 9D***40 | Backup Warning Group | 1 |
7d8089 Signal Lamp Group--24 Volt
| 7D***89 | Basic Lamp Assembly | 1 |
Battery And Wiring (8d9150 N/S)--24 Volt--Part 2 Of 5
| 8D***50 | Battery And Wiring Group | 1 |
Battery And Wiring (8d9150 N/S)--24 Volt--Part 3 Of 5
| 8D***50 | Battery And Wiring Group | 1 |
Battery And Wiring (8d9150 N/S)--24 Volt--Part 5 Of 5
| 8D***50 | Battery And Wiring Group | 1 |
Battery And Wiring (8d9150 N/S)--24 Volt--Part 4 Of 5
| 8D***50 | Battery And Wiring Group | 1 |
Battery And Wiring (8d9150 N/S)--24 Volt--Part 1 Of 5
| 8D***50 | Battery And Wiring Group | 1 |
8d1480 Cab Lighting Group--Type 2
| 8D***80 | Cab Lighting Group | 1 |
8d1480 Cab Lighting Group - Type 1
| 8D***80 | Cab Lighting Group | 1 |
2g7390 Coolant Flow Switch Group
| 2G***90 | Coolant Flow Switch Group | 1 |
9d6100 Emergency Start Receptacle Group
| 9D***00 | Emergency Starting Receptacle Group | 1 |
8d2045 Front Floodlamp Lighting Group
| 8D***45 | Front Floodlamp Lighting Group | 1 |
1m6052 Head Lamp Assembly
| 1M***52 | Lamp Group | 1 |
4n9303 Head Lamp Assembly
| 4N***03 | Lamp Group | 1 |
8d389 Basic Lamp Group--24 Volt
| 8D***89 | Lamp Group | 1 |
1m1882 Flood Lamp Group--24 Volt
| 1M***82 | Lamp Group | 1 |
9d6085 Lighting Group--24 Volt
| 9D***85 | Lighting Group | 1 |
2g995 Lighting Group--24 Volt--Type 2
| 2G***95 | Lighting Group | 1 |
9d6090 Lighting Group--24 Volt
| 9D***90 | Lighting Group | 1 |
2g995 Lighting Group--24 Volt
| 2G***95 | Lighting Group | 1 |
2g1010 Lighting Group--24 Volt - Type 1
| 2G***10 | Lighting Group | 1 |
2g990 Lighting Group--Light Bar
| 2G***90 | Lighting Group | 1 |
2g1010 Lighting Group--24 Volt--Type 2
| 2G***10 | Lighting Group | 1 |
8d2035 Rear Floodlamp Lighting Group
| 8D***35 | Lighting Group-Rear Floodlamp | 1 |
2g6115 Warning Lighting Group--Blue Lens - Type 1
| 2G***15 | Lighting Group-Warning | 1 |
2g6115 Warning Lighting Group--Blue Lens--Type 2
| 2G***15 | Lighting Group-Warning | 1 |
2g2860 Emergency Starting Receptacle Group
| 2G***60 | Receptacle Group-Starting | 1 |
9d5720 Signal Lighting Group--Cab
| 9D***20 | Signal Lighting Group | 1 |
9d3700 Signal Lighting Group--Light Bar--Replaced By 2g990 Shown On Page 42a
| 9D***00 | Signal Lighting Group | 1 |
2g1110 Signal Lighting Group
| 2G***10 | Signal Lighting Group | 1 |
9d3705 Signal Lighting Group--Light Bar--Replaced By 2g1110 Shown On Page 44a
| 9D***05 | Signal Lighting Group | 1 |
7h7290 Disconnect Switch Group
| 7H***90 | Switch As-Disconnect | 1 |
2g5090 Back-Up Warning Group
| 2G***90 | Warning Group-Back-Up | 1 |
2g6095 Warning Light Group--Blue Lens--Type 2
| 2G***95 | Warning Lighting Group | 1 |
2g6095 Warning Lighting Group--Blue Lens--Type 1
| 2G***95 | Warning Lighting Group | 1 |
Wiring Diagram--24 Volt System
9d3818 Harness Assembly
| 9D***18 | Wiring Harness Assembly | 1 |
14G serial number reference
On a Cat motor grader such as the 14G, the PIN/serial plate is typically mounted on the right front frame rail, below and behind the steering gear assembly; if the plate is missing, the serial is often stamped directly into the frame in the same area. The first three characters of the PIN (e.g., 96U) are the serial-number prefix identifying the model/build series, and the digits that follow are the sequential unit number — match the full prefix plus digit range against the applicable parts or service manual to confirm year and configuration.
| Prefix | Identifies | Notes |
|---|---|---|
| 96U | 14G motor grader — only PIN prefix documented for this model | Fitted with the Cat 3306 diesel engine (3306T in some listings), rated in the 180-212 hp range depending on configuration and driven gear. Articulated-frame motor grader with tandem (rear-wheel) drive. This is the only 3-character serial prefix tied to the 14G; sibling prefixes from the shared 12G/14G/140G operator manual (5MD, 61M, 72V, 3WC, 13W) belong to the 12G and 140G, not the 14G. Earlier 14G units, built before Caterpillar 3-character PIN system, carried plain numeric serials with no letter prefix. Confirm exact build year for a given 96U serial with a Cat dealer — public prefix charts do not give a firm start/end date for this range. |
Frequently asked questions
What engine does the Caterpillar 14G motor grader use?
The 14G runs a Caterpillar 3306T turbocharged diesel, a six-cylinder engine displacing 10.5 liters (640.8 cu in) rated around 134 kW (180 hp) net. It replaced the naturally aspirated 3306 used in the earlier 14E, which was rated closer to 112 kW (150 hp).
What is the operating weight of the Caterpillar 14G?
Base operating weight runs about 18.4 tonnes (40,650 lb). Heavier-optioned units carrying attachments such as rippers, scarifiers, or snow wings run closer to 20.5 tonnes (45,180 lb); actual weight varies by configuration.
What replaced the Caterpillar 14G motor grader?
Caterpillar replaced the 14G with the 14H in the mid-1990s, stepping up to roughly 179 kW (240 hp) with a direct-drive, power-shift planetary transmission. The 14H was later followed by the current 14M in Cat's large-grader lineup.
What 14G owners discuss
What engine is actually in the Cat 14G, and what engine-related complaints come up most?
The 14G runs Caterpillar's 3306 diesel. Rated output is cited anywhere from roughly 180 to 200 hp depending on source and configuration, so treat the figure as a range and confirm against the machine's ID plate rather than a spec sheet. Owners and shops generally regard the 3306 as one of Cat's most durable, easiest-to-service engines, and parts/service support remains strong despite its age. Recurring field complaints are blue-grey exhaust smoke and rising oil consumption, usually traced to worn turbo shaft seals, worn valve stem seals, or tired/glazed piston rings letting oil into the cylinders. Fuel showing up in the crankcase oil is also reported, especially after an in-frame rebuild or on high-hour units, and is usually chased to leaking injector seals or a worn injection pump allowing fuel to bypass into the sump. Regular oil sampling and dipstick trend-watching are the standard advice before assuming a major failure.
What hydraulic and circle/moldboard wear issues are typical on this machine?
Wear concentrates at the same points on every G-series-era grader: blade slide guides, circle guide shoes on the turntable, and the moldboard/drawbar wear strips. Worn or out-of-adjustment guide shoes restrict circle rotation and make fine grade adjustments sloppy; worn wear strips show up as grinding noise, blade side-play, and added resistance turning the circle. The articulation hitch pivot pin and bearing are another common wear point — play here shows up as vague or delayed steering response. Cat sells finish-grade wear-strip kits specifically to restore factory tightness in the circle, drawbar, and moldboard system, which tells you how routine this wear item is. Periodic strip and shim replacement, not just greasing, is what keeps grading accuracy on spec.
What undercarriage and final-drive wear patterns should owners watch for?
Check tandem case oil level with the machine sitting level, and watch for discoloration or metallic grit in the oil — that's the first sign of internal gear or bearing wear in the tandem. Leaks at the tandem housings or the differential/transmission case are a common complaint and, left unaddressed, lead to power loss and eventual case failure. Because these machines work in abrasive dirt and gravel, grease points on the articulation joint, steering linkage, and blade/circle mechanism need daily attention in heavy-exposure conditions, with grit wiped from the fitting before greasing — skipping this accelerates the same wear-strip and pin wear covered above.
What electrical and sensor problems come up on older 14G units?
The most-reported failure mode is a total or near-total loss of electrical function — no hazards, no tail lights, dead back-up alarm, gauges not reading. On a machine of this vintage that's almost always age-related wiring degradation, corroded grounds, or a failing master relay rather than a single sensor, and there's no centralized diagnostic module to point at the fault the way later electronic Cat machines do. Community advice is consistent: get the OEM electrical schematic for the specific serial range from a Cat dealer before chasing wires, since aftermarket or generic diagrams don't match factory routing closely enough to be useful. Because this circuit includes lighting, back-up alarm, and safety interlocks, have your dealer verify the repair once the fault is traced.
What's the common troubleshooting path when a 14G won't crank?
One documented case involved a 14G that wouldn't crank even after the owner installed a new starter and repacked the steering/lift cylinders — replacing the starter didn't fix it. The working diagnostic order reported by experienced owners is: batteries and battery cable connections first, then the master disconnect switch, then the ignition/start switch, before condemning the starter or solenoid itself. A no-crank fault that survives a starter swap almost always sits upstream in the control/switch circuit rather than in the starter motor. Because the start circuit on this machine ties into safety interlocks, have your dealer verify before returning the machine to service.
Does the 14G suffer from blade bounce or duck-walking, and how do operators deal with it?
Blade bounce and duck-walk (the machine hopping or waddling side to side) at speeds above second or third gear is a well-known trait on large Cat road graders of this frame size, not a defect unique to one unit. Operators describe it as a mass-on-springs problem: tire/rim choice and tire pressure balance between front and rear axles has the biggest effect on damping it out. Field-reported pressure splits vary by tire size and duty (commonly somewhere in the 35-45 psi range, front lower than rear), so treat any specific number as a starting point that varies by tire spec and load, not a fixed setting. The other standard fix is simply dropping a gear on rough, frozen, or washboarded surfaces rather than pushing through bounce at higher road speed.
What should a buyer check before purchasing a used Cat 14G?
The 14G was built roughly from the early 1970s through the mid-1990s, so most surviving units are already high-hour and age is a bigger value driver than on newer equipment; asking prices in the market swing widely, roughly the mid-five-figures to high-five-figures range depending on hours, condition, and attachments, so treat any single number as a starting point only. Walk the usual grader checklist: oil condition and consumption trend on the 3306 (pull a sample if possible), circle and moldboard wear-strip play, articulation hitch pin play, tandem case oil condition and any weeping at the tandem or differential housings, and a full function test of every light, gauge, and the back-up alarm given how often older units turn up with dead electrical circuits. Ask for maintenance records — a documented service history is worth real money on a machine this old, and recently replaced wear items (strips, pins, hoses) add value because they defer near-term cost. Have your dealer verify structural and hydraulic condition before final purchase, since paint and a clean engine bay can mask frame or circle wear that only shows up under load.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific 14G part?
Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.