Caterpillartrack-type tractor
Caterpillar D6G2 XL
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar D6G2 XL is a mid-size track-type tractor in Cat's D6 class, built as the Series II update of the original D6G platform for export markets after Cat introduced the electronically monitored D6R domestically in the mid-1990s. Power comes from Cat's own 3306T turbocharged, mechanically governed inline-six diesel rated around 119 kW (160 hp) net at 1,900 rpm from 10.5 L displacement, with no ECM, monitored instead by gauges and warning lamps. Drive runs through a power-shift transmission with three speeds forward and three reverse, a torque-divider coupling, steering-clutch-and-brake steering, and double-reduction final drives. Operating weight in XL configuration runs around 16,880 kg (37,220 lb); the lighter Series I D6G it replaced ran closer to 15,435 kg (34,028 lb), so weight varies by series, blade, and undercarriage width. The line was offered with S (semi-universal) and A (angle) blades and in XL and LGP undercarriage widths, with serial prefixes P6G and C6G identifying XL-configuration machines.
The Series II update carried undercarriage, hydraulic, and structural refinements over the base D6G while keeping the same 3306T engine and fully mechanical control system, unlike the domestic D6R/D6M generation that moved to electronic engine and transmission monitoring. That mechanical simplicity is exactly why the D6G2 XL still matters in the used and parts market: it is easier to diagnose and rebuild in the field without dealer electronics support, and demand stays steady for reman torque dividers, final drives, steering clutches, and 3306T long blocks. Its shared drivetrain lineage with D6E, D6G SR, and D6G2 LGP siblings keeps a broad parts and rebuild-kit supply available well after factory-new production ended.
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 D6G2 XL specifications
Identity & Configuration
| Model / series | Caterpillar D6G Series II track-type tractor (factory designation "D6G Series 2", commonly shorthanded D6G2), XL undercarriage configuration |
| Platform notes | Mid/late-1990s update of the D6G platform, carrying the mechanically governed Cat 3306T engine and power-shift transmission forward from Series I with undercarriage, serviceability, and operator-station revisions. Predates the electronically controlled D6R/D6M/D6N/D6T/D6K2 and current D6/D6 XE generations. |
| Configuration guard | Treat as distinct from D6C, D6D, D6D SR, D6E, D6E SR, and D6F SR (earlier, direct-drive generations) and from later electronic-control D6 families. Do not blend specs across these lines. Also distinct from the base-model (Series I) D6G, which is lighter and uses different published weight/fuel figures. |
Engine
| Engine model | Cat 3306T, turbocharged direct-injection diesel, inline-6, 4-stroke |
| Net flywheel power (rated) | 119 kW (160 hp) at 1,900 rpm, factory net rating |
| Maximum flywheel power | 131 kW (175 hp) |
| Bore | 121 mm (4.75 in) |
| Stroke | 152 mm (6 in) |
| Displacement | 10.5 L (638-640 cu in, rounding varies by source) |
| Rated engine speed | 1,900 rpm |
| Altitude capability | No power derate required to 2,300 m (7,500 ft) altitude |
| Emissions certification | Mechanically governed diesel from a generation that predates U.S. EPA/EU off-highway emissions-tier rules applied to later D6 models; no certified emissions tier published for this generation |
Powertrain
| Transmission | Power-shift, 3 speeds forward / 3 speeds reverse, large-diameter oil-cooled clutches with modulated shifting for smooth speed and direction changes |
| Final drives | Double-reduction final drives |
| Electrical system | 24-volt system |
Weights (by configuration)
| XL operating weight | 16,880 kg (approx. 37,220 lb, per factory kg-to-lb conversion; a printed lb figure circulating for this same kg value is arithmetically inconsistent and should not be used) |
| XL shipping weight | 13,840 kg (30,519 lb) |
| LGP operating weight (sibling configuration, for reference) | 17,500 kg (approx. 38,600 lb) |
| Weight composition (per factory spec sheet) | XL operating weight figure includes lubricants, coolant, 2-valve hydraulics, 610 mm (24 in) shoes, straight (6S) dozer blade, non-ROPS cab, full fuel tank, and an 80 kg (176 lb) operator |
| Weight variance note | Operating weight varies with shoe width, blade type, ripper, and cab/ROPS option selected; figure above reflects the factory-standard XL build. Predecessor Series I D6G (base config) is lighter, around 15,435 kg (34,028 lb) — a different generation, not interchangeable with this figure |
Dimensions
| Overall length with drawbar (XL) | 3,937 mm (155.0 in) |
| Length, track on ground (XL) | 2,667 mm (105.0 in) |
| Width without blade (XL, 560 mm shoes) | 2,440 mm (96.1 in) |
| Height to top of cab/ROPS canopy (XL) | 3,057 mm (10.03 ft / 120.4 in) |
| Ground clearance | 310 mm (12.2 in) |
| Track gauge (XL) | 1,880 mm (74 in / 6.17 ft) |
| Overall footprint (XL, per factory summary) | approx. 3,937 mm L x 2,440 mm W x 3,057 mm H (155 in x 96.1 in x 120.4 in) |
Undercarriage
| XL track shoe width | 560 mm (22 in) standard, sealed and lubricated single-grouser chain; 610 mm (24 in) optional |
| Track rollers per side | 7 |
| Undercarriage type | Oval, non-elevated-sprocket roller frame (distinguishes this platform from the elevated-sprocket D6H line of the same era) |
Performance
| Forward travel speed, 1st gear | 4.0 km/h (2.5 mph) |
| Forward travel speed, 2nd gear | 6.9 km/h (4.3 mph) |
| Forward travel speed, 3rd gear | 10.8 km/h (6.7 mph) |
| Reverse travel speed, 1st gear | 4.8 km/h (3.0 mph) |
| Reverse travel speed, 2nd gear | 8.4 km/h (5.2 mph) |
| Reverse travel speed, 3rd gear | 12.9 km/h (8.0 mph) |
| Drawbar pull | Not published as a discrete spec-sheet figure in factory literature reviewed for this configuration; performance of this generation is typically shown as a drawbar-pull-versus-speed curve rather than a single table value. Verify with a dealer or the full factory performance chart if an exact figure is required |
| Ground pressure | Not published as a discrete factory figure for this configuration across sources reviewed. Ground pressure on this machine depends on which track shoe width is fitted (560 mm standard vs 610 mm optional), so treat any single number as approximate and confirm with a dealer for the exact build |
| Gradeability | Not documented as a table figure in available literature for this configuration |
Blades
| S-blade (semi-universal, with tilt cylinder) capacity | 3.27 m³ (4.28 yd³) |
| A-blade (angle) capacity | 2.4 m³ (3.14 yd³) |
| Blade availability | Straight and angling blades offered as factory options for this platform; a semi-universal blade was also offered. Blade capacity is reported by some sources as spanning roughly 2.4-3.8 m³ depending on blade type and edition, consistent with the S/A figures above at each end of that range |
| Blade width/height detail | Individual blade width and height figures per blade type are not separately itemized in the sources reviewed; overall tractor width without blade (2,440 mm / 96.1 in) is the closest reference figure available |
Service capacities
| Fuel tank | 320 L (84 gal US) |
| Hydraulic/implement system | 47 L (12.4 gal US) |
| Cooling system | 39 L (10.3 gal US) |
| Engine crankcase (oil, with filter) | 27 L (7.3 gal US) |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
D6G2 XL fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 27 L (7.3 US gal) | Cat DEO (Diesel Engine Oil) meeting the API CF-4/CG-4-class diesel engine oil spec current for this Cat 3306T engine. SAE 10W-30 covers roughly -18°C to 40°C (0°F to 104°F) ambient; SAE 15W-40 is the warm-climate alternate. Drop to a lighter grade (SAE 0W-20/0W-30 winter-front oils) below -18°C per the ambient-temperature viscosity chart. |
| Cooling system | 39 L (10.3 US gal) | Heavy-duty extended-life coolant/antifreeze (Cat ELC or equivalent glycol-based coolant with corrosion inhibitor), mixed per climate for the expected ambient range. |
| Fuel tank | 320 L (84 US gal) | No. 2-D diesel fuel (ASTM D975 or equivalent), minimum 35 API gravity under the engine's standard rating conditions; switch to a winter-blend/No. 1-D fuel in cold climates to avoid gelling. |
| Transmission / power train (power-shift transmission, torque divider, bevel gear and steering-clutch compartments share one combined reservoir on this machine) | 93 L (24.5 US gal) total, single power-train fill | Cat TDTO (Transmission/Drive Train Oil) meeting the Cat TO-4/TO-4M spec. Multigrade TDTO extends the usable cold-start range versus monograde TO-4; pick viscosity by minimum ambient per the machine's lubricant-viscosity chart. |
| Final drives (each side) | 19 L (5 US gal) per side | Cat TDTO meeting Cat TO-4/TO-4M, same family as the power train fill. |
| Hydraulic system/tank | 47 L (12.4 US gal) | Cat TDTO was the standard fill for this machine class and era; Cat HYDO/HYDO Advanced hydraulic oil is an acceptable/updated alternative where the current OMM specifies it. Confirm against the exact OMM revision for the machine's serial range, since Cat's hydraulic-fluid recommendation evolved after this model's original release. |
| Pivot shaft / equalizer bar | No separate refill capacity published — single grease-fitting lube point, not an oil-filled compartment | Cat Multipurpose Grease (Cat MPGM) at the equalizer-bar pivot. Track rollers, carrier rollers, idlers and track pins are factory sealed and lifetime-lubricated and take no field grease or oil service on this machine. |
| Grease (chassis/pin points, e.g. blade trunnions, lift-cylinder pins, ripper linkage) | Not specified — serviced per fitting, no bulk fill capacity | Cat Multipurpose Grease (Cat MPGM), NLGI Grade 2 for normal ambient conditions; step down to NLGI 1 or 0 for sustained sub-zero cold. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar D6G2 XL maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the D6G2 XL beyond the schedule
Predictive Maintenance & Fluid Analysis
Since the 3306T runs no ECM, S-O-S oil analysis is the main early-warning tool on a D6G2 XL. Sample engine oil, the powertrain (transmission/bevel-gear/steering-clutch) compartment, hydraulic tank, and both final drives on the same interval as their oil changes. Watch for iron and copper trending up in the powertrain sample; it flags steering-clutch or torque-divider wear before a lever loses response. Track coolant condition too, since corrosion in the wet-sleeve cylinder liners shows up in analysis before it shows up as a leak.
Corrective & Common Repairs
Typical D6G2 XL complaints trace to the steering clutch and brake linkage going out of adjustment, torque-divider slip from worn clutch plates, and turbocharger shaft play on the 3306T from oil starvation at start-up. Track pin/bushing and sprocket wear on the XL undercarriage is the other recurring repair, especially in abrasive ground. Fuel system issues on this mechanically governed engine usually trace to injector pop-pressure drift or a plugged primary filter/water separator rather than any sensor fault.
Overhaul & Rebuild Points
Major rebuild decisions on a D6G2 XL center on the torque-divider/transmission clutch packs, steering clutch and brake discs, and the double-reduction final drives, all serviceable as complete assemblies once wear allowance runs out. The 3306T top end (injectors, turbocharger, valve train) is a common mid-life overhaul; the block and wet-sleeve liners typically go the full service life before a full in-frame rebuild is justified. Undercarriage rebuild (chain, sprockets, idlers, rollers) is usually the largest single cost on a used XL.
Seasonal & Environment Servicing
Cold-start prep on the mechanically governed 3306T means correct-viscosity engine and powertrain oil for ambient temperature, a working ether-start aid if fitted, and draining fuel-tank condensation before winter. In hot, dusty applications, check the radiator and oil cooler cores and the dry-type air cleaner service indicator more often than the standard interval. XL-undercarriage track tension needs rechecking after temperature swings, since chain sag changes with grease and pin/bushing temperature.
D6G2 XL common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 129-0372 | Filter As-Water Sep & Fuel | Fuel system service | Check fitment → |
| 129-0375 | Bowl As-Water Collection | Fuel system service | Check fitment → |
| 133-5673 | Element | Fuel system service | Check fitment → |
| 1R-0750 | Filter As-Fuel | Fuel system service | Check fitment → |
| 128-2686 | Filter Element As-Air | Air intake service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
D6G2 XL fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Warning Lamp - Engine Oil Pressure | Engine oil pressure has dropped below the safe minimum for current engine speed. | Low oil level, worn or failing oil pump, plugged oil filter, or a faulty oil pressure sending switch. | Stop the engine as soon as safely possible. Check oil level and condition, inspect for external leaks, and verify the sending switch/wiring before restarting. |
| Warning Lamp - Engine Coolant Temperature | Engine coolant temperature has risen above normal operating range. | Low coolant level, debris-blocked radiator core, slipping or damaged fan drive, or a stuck thermostat. | Reduce load and let the engine idle to cool; do not shut down a hot engine abruptly. Once safe, check coolant level, clean the radiator core, and inspect the fan drive belt. |
| Warning Lamp - Alternator / Charging System | Charging system output is low or absent; battery is not being charged. | Loose or worn alternator belt, failed alternator, corroded or loose battery/alternator connections, or a bad voltage regulator. | Check belt tension and condition, inspect wiring and terminals at the alternator and batteries, and test alternator output with a meter. |
| Warning Lamp - Air Filter Restriction | Intake air filter restriction has exceeded the allowable limit. | Clogged or saturated air filter element, or a collapsed/damaged intake hose. | Service or replace the air filter element and inspect intake piping and clamps for damage or leaks. |
| Warning Lamp - Transmission Oil Temperature | Powershift transmission oil temperature is above normal operating range. | Low transmission oil level, plugged transmission oil cooler, or excessive clutch slippage from sustained heavy load. | Reduce load and allow the transmission to cool. Check oil level and condition, and inspect the cooler core for blockage or debris. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
D6G2 XL attachments & work tools
Blades
Factory choices for this class are a Straight (S) blade, sized for penetration and hard-packed/rock work rather than capacity, and a Semi-Universal (SU) blade with wing-shaped moldboard ends for better load retention in loose-to-medium material and finish work. An angling (A) blade, adjustable roughly 25 degrees to either side for sidecasting, was also offered across the D6 family of this era. VPAT (variable pitch/angle/tilt) blades belong to the later D5/D6R-and-newer Cat lineup and are not documented as a factory option on this Series II XL platform - treat any VPAT reference for this specific machine as unconfirmed and verify against the serial-specific spec sheet. Blade width and capacity vary by configuration (S vs SU) and by track gauge; confirm exact figures against the dealer spec sheet for the unit's serial range rather than assuming one number across the line.
Rippers
Rear ripper choices for this class are a multi-shank parallelogram ripper (factory arrangement typically set up with three shanks, adaptable for more) for general ripping across varied material, and a single-shank ripper for maximum penetration depth and beam strength in tougher rock or hardpan. Shank and end-bit wear parts are cast in hardened alloy steel for service life in abrasive ground. Exact ripper weights are not documented for this specific model/serial range in available references - varies by shank count and beam design; verify with a dealer parts listing.
Winches
This class of dozer (D6G-size) is a documented fit for PTO-driven towing winches in the roughly 27,200 kg (60,000 lb) line-pull class, offered with multiple gear-ratio options including a slow ratio for high pull and a super-slow ratio for controlled load lowering (equal line-in/line-out speed), useful for oilfield, pipeline, and yo-yo skidding work. These winches mount at the rear in place of, or alongside, the ripper and draw power from the transmission PTO rather than the implement hydraulic circuit. A dedicated factory Cat winch option for this specific generation is not confirmed in available documentation - the well-documented pairing is aftermarket PTO winch packages sized to the D6G class.
Drawbars/counterweights
A rear drawbar is available for towing duty, typically fitted when the ripper is removed. Rear counterweights are used to help rebalance the machine and maintain traction/stability when running a winch or heavy drawbar load, since the ripper's mass normally provides that rear ballast when installed. Specific counterweight and drawbar weights are not confirmed for this exact model in available sources - varies by configuration.
Cab/ROPS guarding (forestry/waste)
Available as either a cab or an open canopy, both with an integrated ROPS/FOPS structure as standard protection. A forestry-spec arrangement adds screens and sweeps over glass and lights plus added guarding to protect the operator and machine from brush and debris intrusion. A waste/landfill-duty arrangement similarly adds guarding around the cooling package and undercarriage to keep debris out of the radiator and final drives. Front and rear guiding guards over the track/idler area, plus a center guiding guard, are standard equipment across this dozer line regardless of application package.
Hydraulic arrangement (front/rear)
Front blade functions (lift, tilt, angle where fitted) run off a dedicated implement gear pump feeding the blade rams through the machine's control valve bank. Rear ripper functions (raise/lower, shank angle on adjustable setups) are plumbed from that same implement hydraulic circuit routed to the back of the machine. When a rear PTO winch is fitted instead of or alongside the ripper, it typically runs off the transmission power take-off rather than the implement hydraulic circuit, so winch operation is mechanically independent of blade/ripper hydraulics.
All D6G2 XL assemblies by section
Every catalogued assembly group for the Caterpillar D6G2 XL. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
1w-4486 Fastener Gp-Exhaust Manifold
| 1W***86 | Fastener Group-Exhaust Manifold; Exhaust Manifold Fastener Group | 1 |
| 27***24 | Knob | 2 |
| 30***98 | Guard As | 1 |
272-7835 Adapter Gp-Air Cleaner
| 12***86 | Filter Element As-Air; (Primary, Ultra High Efficiency)(Filter) | 1 |
| 27***35 | Adapter Group-Air Cleaner | 1 |
| 4P***24 | Seal-O-Ring | 1 |
242-9732 Air Cleaner Gp
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 4 |
| 12***37 | Precleaner As; -Air Cleaner-Air Inlet | 1 |
| 1P***86 | Adapter | 1 |
274-7150 Air Cleaner Gp
| 1B***13 | Bolt,Machine Governor And Decelerator Control | 1 |
| 27***50 | Air Cleaner Group | 1 |
| 30***82 | Pipe-Extension | 1 |
308-3594 Extension Gp-Exhaust
| 10***93 | Stud-Taperlock; (3/8-16x2.36-In)(3/8-16x60 Thd) | 1 |
| 13***41 | Washer-Hard; (10.2x28.5x5-mm Thk) | 1 |
| 1M***43 | Spacer; (10.5x25.4x18.21-mm Thk) | 1 |
308-3596 Guard Gp-Precleaner
| 11***18 | Tube As-Fuel Ratio | 1 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 8 |
| 1H***66 | Gasket | 1 |
269-0323 Lines Gp-Air
| 10***27 | Coupling-Exhaust | 1 |
| 14***67 | Clamp; (Hose) | 1 |
| 1B***55 | Nut,Plain,Hexagon Turbocharger Mounting | 3 |
270-7299 Lines Gp-Air
| 13***00 | Manifold-Exhaust | 1 |
| 27***99 | Lines Group-Air | 1 |
| 8S***16 | Manifold-Exhaust; (Front) | 1 |
134-4208 Manifold Gp-Exhaust
| 0T***19 | Bolt Hose Assembly At | 2 |
| 13***08 | Manifold Group-Exhaust | 1 |
| 1B***56 | Nut-Full; (7/16-14-Thd) | 2 |
7s-6741 Muffler Gp
| 6H***21 | Body-Pre-Cleaner | 1 |
| 7S***41 | Muffler Group; Muffler Group | 1 |
| 9M***01 | Cover Assembly | 1 |
124-3237 Precleaner Gp -Air
| 12***37 | Precleaner As; -Air Cleaner-Air Inlet | 1 |
| 16***42 | Screen Assembly; (Waste Handling) | 1 |
| 16***43 | Intake Stack Assembly | 1 |
243-3997 Prescreener Gp
| 1P***51 | Gasket; (Turbocharger) | 1 |
| 21***11 | Turbocharger Group | 1 |
| 24***97 | Prescreener Group; -Waste Handling | 1 |
113-5340 Turbocharger Gp
| 11***40 | Turbocharger Group | 1 |
| 11***16 | Housing (Turbine) | 1 |
| 11***17 | Cover (Compressor) | 1 |
219-1911 Turbocharger Gp
| 10***93 | Washer | 1 |
| 11***58 | Washer; (12.7x6.65x0.79-mm Thk) | 1 |
| 21***11 | Turbocharger Group | 1 |
Basic Engine
1n-4406 Camshaft Gp
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 1N***06 | Camshaft Group-Single; Camshaft Group--Single | 1 |
| 7E***80 | Camshaft | 1 |
2y-8623 Cover Gp-Cylinder Block
| 2A***98 | Pin,Straight,Headle Flywheel Housing | 2 |
| 2Y***23 | Cover Group-Cylinder Block; Cylinder Block Cover Group | 1 |
| 4B***38 | Plug 28.95 mm(1.14 In.) Hole Dia. | 1 |
2p-6531 Cover Gp-Cylinder Head
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 4 |
| 1P***58 | Cover-Air Inlet | 1 |
| 2P***31 | Cover Group-Cylinder Head; Cylinder Head Cover Group | 1 |
4n-5162 Cover Gp-Front Housing
| 0S***66 | Bolt-Pulley To Crankshaft Adapter | 2 |
| 1W***42 | Housing,Coolant Pum Timing Cover | 1 |
| 2P***20 | Gasket-- Front Cover | 1 |
8n-4745 Cover Gp-Valve Mechanism
| 0S***17 | Bolt --Use Open Hole In Compressor Body | 15 |
| 13***47 | Seal-Integral; (Valve Cover) | 1 |
| 2W***86 | Cover As-Cylinder Head | 1 |
4p-9856 Crankshaft Gp
| 10***52 | Plate-Thrust | 2 |
| 19***34 | Kit-Basic Engine Repair; (Main Bearing)(Crankshaft) | 0 |
| 23***33 | Bearing-Main; (Standard)(Standard) | 7 |
7n-6550 Cylinder Block Gp
| 10***12 | Insert; (Liner Seat) (.822-mm Thk) | 0 |
| 10***18 | Insert; (Liner Seat) (1.605-mm Thk) | 0 |
| 10***27 | Insert-Liner Seat (2.710mm Thk) | 0 |
8n-5286 Cylinder Block Gp
| 11***50 | Gasket-Plate | 1 |
| 1S***40 | Dowel; (30.23 mm X 9.37 mm) | 1 |
| 3S***96 | Seal-O-Ring; (9.53mm Id) | 1 |
7n-8876 Cylinder Head Gp
| 10***60 | Valve (Intake) | 6 |
| 10***65 | Insert-Valve Seat; (Exhaust)(Standard) | 6 |
| 10***68 | Insert-Valve Seat; (Inlet)(Standard) | 6 |
2p-7838 Damper Gp
126-0600 Drive Gp-Accessory
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 1 |
| 0S***95 | Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard | 3 |
| 12***99 | Adapter As-Hydraulic Pump | 1 |
2p-7831 Drive Gp-Fan
| 1P***45 | Bracket Assem, Including: | 1 |
| 1P***46 | Shaft-Fan | 1 |
| 2P***57 | Hub-Fan To Bracket Assembly | 1 |
7n-9536 Fastener Gp-Cylinder Head
| 1B***09 | Bolt-- Head To Cylinder Block | 5 |
| 1D***95 | Bolt (5/8-11x6in); (5/8-11x6-In) | 20 |
| 2S***36 | Washer,Flat Cover Assembly Mounting And Flywheel Housing Cover | 25 |
8n-0872 Fastener Gp-Front Housing
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 20 |
| 1C***51 | Bolt--Installation Of 2v***26 Retainer | 2 |
| 3E***14 | Bolt; (3/8-16x0.87-In) | 6 |
6n-1393 Fastener Gp-Oil Pan
| 03***35 | Bolt-Self Locking; 2.22cm(.875 In.) Lg | 18 |
| 03***57 | Bolt; --To Reverse Shaft Bearing Retainer & Forward Shaft Bearing Retainer | 2 |
| 0L***52 | Capscrew (3/8 - 16 Nc X 3 1/4 Gd8, Hex) | 3 |
7s-7874 Flywheel Gp
| 0S***00 | Bolt Flywheel Assembly To Crankshaft | 9 |
| 2W***83 | Flywheel Assem. | 1 |
| 6N***30 | Washer | 9 |
111-8001 Gear Gp-Front
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 0S***18 | Bolt; (5/16-18x1-In)(Hydraulic Pump) | 2 |
| 0S***48 | Bolt,Machine Camshaft Gear Mounting | 4 |
130-7087 Housing As-Flywheel
| 13***05 | Housing-Flywheel | 1 |
| 13***87 | Housing As-Flywheel | 1 |
| 2A***98 | Pin,Straight,Headle Flywheel Housing | 2 |
130-7086 Housing Gp-Flywheel
| 0S***85 | Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine | 3 |
| 13***86 | Housing Group-Flywheel | 1 |
| 13***87 | Housing As-Flywheel | 1 |
8n-0303 Housing Gp-Front
| 1W***00 | Gasket Timing Gear Cover | 1 |
| 1W***16 | Plate As-Front | 1 |
| 5M***14 | Pipe Plug Cylinder Block Oil Pressure | 1 |
6n-8326 Lifting Gp-Engine
| 6N***26 | Lifting Group; Lifting Eye Gp-Engine | 1 |
| 6V***99 | Bolt; (5/8-11x38.1mm) | 4 |
| 8D***54 | Washer,Flat Electric Starting Motor Group | 4 |
1w-2766 Mounting Gp-Engine
| 1W***66 | Mounting Group-Engine | 1 |
| 2B***62 | Dowel- Frame To Flywheel Housing; Dowel--Frame To Flywheel Housing | 2 |
| 2J***06 | Nut Front Support To Frame; Nut-Front Support To Frame | 2 |
2p-6152 Pan Gp-Oil
| 11***36 | Adapter As-Drain | 1 |
| 16***99 | Gasket-Oil Pan | 1 |
| 16***00 | Gasket; (Oil Pan) | 1 |
1w-6588 Piston & Rod Gp
| 16***60 | Body As-Piston; (Requires 4mm Thick Oil Ring) | 1 |
| 1P***56 | Bolt,Shoulder Connecting Rod | 2 |
| 1S***43 | Ring,Retaining Piston Pin | 2 |
7n-2879 Pulley Gp-Crankshaft
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 6 |
| 5M***94 | Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler | 6 |
| 7N***52 | Pulley (Crankshaft) | 1 |
119-4713 Pulley Gp-Fan
| 11***13 | Pulley Group-Fan | 1 |
| 1P***70 | Adapter Fan Drive | 1 |
| 6V***01 | Nut; (3/8-16-Thd)(Plate To Rh And Lh Bracket As) | 6 |
2p-6224 Seal Gp-Crankshaft
| 2P***24 | Seal Group-Crankshaft; Crankshaft Seal Group | 1 |
| 4W***52 | Seal Group-Crankshaft; (Counter Clockwise Rotation) | 1 |
| 9Y***95 | Seal Group-Crankshaft; (Clockwise Rotation) | 1 |
2p-6226 Seal Gp-Crankshaft
| 0S***85 | Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine | 6 |
| 2P***26 | Seal Group-Crankshaft; Seal Group-Crankshaft | 1 |
| 5P***45 | Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate) | 6 |
6n-2579 Support Gp-Engine
| 0L***29 | Bolt- 7.63 cm(3 In.) Long - Location "H" | 3 |
| 1W***19 | Trunnion Assembly Engine | 1 |
| 2P***87 | Ring | 1 |
1w-2457 Support Gp-Engine
| 1A***37 | Bolt Clutch Assembly To Bracket (Fan Support) | 2 |
| 1W***57 | Support Group-Engine; Engine Support Group | 1 |
| 25***10 | Mount As | 1 |
7n-9589 Trunnion Gp-Engine
| 1B***09 | Bolt-- Head To Cylinder Block | 1 |
| 1L***72 | Dowel (Part Of 8s***99 Assem.) | 1 |
| 2S***36 | Washer,Flat Cover Assembly Mounting And Flywheel Housing Cover | 1 |
7c-7013 Valve Mechanism Gp
| 5S***18 | Push Rod,Engine Pop Valve Lifter | 12 |
| 7C***13 | Valve Mechanism Group | 2 |
| 7S***61 | Tappet,Engine Poppe | 12 |
7n-8026 Valve Mechanism Gp
| 0S***18 | Bolt; (5/16-18x1-In)(Hydraulic Pump) | 2 |
| 1B***90 | Bolt; (5/16-18x1.375-In)(Rh Front Cover) | 2 |
| 1P***67 | Plunger; (Engine Oil Cooler Relief Valve) | 2 |
Cooling System
4w-5896 Cooler Gp-Fltr Base & Eng Oil
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 2 |
| 1P***63 | Guard As-Fan Rh; (R.H.) | 1 |
| 1P***64 | Guard As-Fan Lh; (L.H.) | 1 |
4w-5895 Cooler Gp-Fltr Base & Eng Oil
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 1 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 7 |
| 2P***11 | Housing,Mechanical Water Manifold | 1 |
1p-7878 Guard Gp-Fan
| 11***10 | Regulator-Water Temperature; (91 Deg Celsius) | 1 |
| 1P***78 | Fan Group-Blower | 1 |
| 7N***44 | Gasket; (Temperature Regulator Housing) | 1 |
2p-8173 Housing & Regulator Gp
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 1 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 2 |
| 0T***65 | Bolt--3/8" X 3 1/2"--Use As Required; Bolt 5t***56 Plate To Cover Gp 4n***72 | 1 |
8n-4112 Lines Gp-Water
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 1 |
| 11***59 | Gear-Water Pump; (33-Teeth) | 1 |
| 15***82 | Seal-Lip Type | 1 |
2w-6779 Lines Gp-Water
| 1B***74 | Plug,Pipe Base Assembly,Engine Oil Filter Assembly | 3 |
| 2W***79 | Lines Group-Water | 1 |
| 3J***90 | Plug Adapter Turbo Oil Supply; Plug-Adapter Turbo Oil Supply | 2 |
175-2384 Pump Gp-Water
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 4 |
| 17***84 | Pump Group-Water | 1 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 1 |
175-2382 Pump Gp-Water
| 0T***55 | Bolt; (3/8-16x4.25-In)(Location S) | 2 |
| 17***82 | Pump Group-Water | 2 |
| 5F***06 | Packing,Preformed Pump Mtg Part Of Kit P/N 5r***25 | 1 |
7n-5128 Radiator Gp
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 1 |
| 29***62 | Adapter | 1 |
| 7N***28 | Radiator Group | 1 |
Electrical And Starting System
3e-6328 Alarm Gp -Fault Indicator
| 03***12 | Screw-Forming; (10-24x0.5-In) | 5 |
| 11***19 | Diode As-Alternator | 1 |
| 18***34 | Nut-Flange; (5/8-18-Thd) | 1 |
6n-9294 Alternator Gp-Charging
| 1B***05 | Key; (Woodruff) | 1 |
| 1L***48 | Nut-Plated Jam; (7/16-14-Thd) | 1 |
| 2K***21 | Locknut (5/8-18 Thd) | 1 |
7n-9720 Alternator Gp-Charging
| 1B***05 | Key; (Woodruff) | 1 |
| 1H***44 | Lockwasher (Bracket To Cab) | 1 |
| 2H***20 | Lockwasher (11.38mm Id) | 1 |
9g-4574 Alternator Gp-Charging
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***52 | Seal | 1 |
| 10***53 | Lens As; (Floodlight) | 1 |
6n-5468 Alternator Gp-Charging
| 3T***52 | Alternator Group-Charging | 1 |
| 6N***68 | Alternator Group-Charging | 1 |
| 7N***20 | Alternator Group; Alternator Group (Robert Bosch) | 1 |
3t-6352 Alternator Gp-Charging
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 1 |
| 0S***85 | Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine | 2 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 1 |
133-6336 Lamp Gp-Flood
| 11***14 | Bracket Assem. | 2 |
| 13***35 | Lamp Group-Flood; -24-Volt, 65-Watt-Blackout | 2 |
| 13***36 | Lamp Group-Flood; (24-Volt) | 1 |
133-6335 Lamp Gp-Flood
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***52 | Seal | 1 |
| 10***53 | Lens As; (Floodlight) | 1 |
308-5513 Lighting Gp-Flood -Sweep
| 11***20 | Bracket As-Light; (Each Includes) | 2 |
| 13***36 | Lamp Group-Flood; (24-Volt) | 2 |
| 27***05 | Bracket As | 1 |
295-8548 Lighting Gp-Flood -Radiator Guard
| 11***14 | Bracket Assem. | 6 |
| 13***36 | Lamp Group-Flood; (24-Volt) | 6 |
| 29***48 | Lighting Group-Flood; -Radiator Guard-Waste Handling | 1 |
270-7907 Lighting Gp-Flood -Radiator Guard
| 11***14 | Bracket Assem. | 2 |
| 13***35 | Lamp Group-Flood; -24-Volt, 65-Watt-Blackout | 2 |
| 22***83 | Guard As-Wire | 2 |
273-3608 Lighting Gp-Rear -Cab
| 10***40 | Ring; (Retaining) | 1 |
| 10***43 | Seal; (32-cm Each) | 0 |
| 11***71 | Relay; (24-Volt)(Hydraulic Lock Solenoid) | 2 |
276-3314 Panel Gp-Fuse
| 20***54 | Starting Motor Group-Electric | 1 |
| 27***14 | Panel Group-Fuse | 1 |
| 4H***69 | Gasket Starter Mtg Part Of Kit P/N 5r***25 | 1 |
6v-5538 Starting Motor Gp-Electric
| 20***55 | Starting Motor Group-Electric; (Delco Remy) | 1 |
| 6V***26 | Starting Motor Group-Electric | 1 |
| 6V***38 | Starting Motor Group-Electric | 1 |
1w-3851 Starting Motor Gp-Electric
| 1W***51 | Starting Motor Group-Electric | 1 |
| 3E***25 | Cover As; (Starting Motor) | 1 |
| 3E***27 | Kit-Bearing; (Starting Motor)(Incl Bearing Seals & Spacers) | 1 |
207-1554 Starting Motor Gp-Electric
| 03***23 | Bolt; (1/4-28x1-In) | 5 |
| 19***70 | Solenoid As-Starting Motor; (24-Volt)(Starting Motor) | 1 |
| 20***54 | Starting Motor Group-Electric | 1 |
207-1555 Starting Motor Gp-Electric
| 20***55 | Starting Motor Group-Electric; (Delco Remy) | 1 |
| 20***61 | Starting Motor Group-Electric | 1 |
| 6V***38 | Starting Motor Group-Electric | 1 |
207-1560 Starting Motor Gp-Electric
| 03***23 | Bolt; (1/4-28x1-In) | 5 |
| 20***60 | Starting Motor Group-Electric | 1 |
| 25***79 | Kit-Solenoid; (24-Volt)(Starting Motor) | 1 |
207-1561 Starting Motor Gp-Electric
| 20***61 | Starting Motor Group-Electric | 1 |
| 2H***22 | Lockwasher | 2 |
| 6F***45 | Nut-Full; (3/8-24-Thd) | 2 |
6v-5226 Starting Motor Gp-Electric
| 3E***25 | Cover As; (Starting Motor) | 1 |
| 3E***27 | Kit-Bearing; (Starting Motor)(Incl Bearing Seals & Spacers) | 1 |
| 3E***28 | Kit; (Brush) (Includes O-Rings, Screw, Spring, & Brush) | 1 |
7n-0718 Switch Gp-Disconnect -Battery
| 17***08 | Switch Group-Magnetic; -24-Volt-Start Relay-Main Relay | 1 |
| 17***09 | Switch Group-Magnetic; -24-Volt-Start Relay | 1 |
| 7N***18 | Switch As-Disconnect; -Battery-Ground Level | 1 |
118-3534 Switch Gp-Magnetic -Start Relay
| 11***34 | Switch Group-Magnetic; -Start Relay | 1 |
| 15***70 | Kit-Connecting Plug; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 18***36 | Socket-Connector; (16-Ga To 18-Ga) | 2 |
175-2309 Switch Gp-Magnetic -Start Relay
| 03***91 | Pop - Rivet (To Secure Safety Lable) | 2 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***09 | Switch As-Proximity; (Backup Alarm) | 1 |
175-2308 Switch Gp-Magnetic -Start Relay
| 01***80 | Lockwasher | 2 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 11***81 | Switch As-Magnetic; (Start Relay) | 1 |
167-0138 Switch Gp-Magnetic -Main Relay
| 01***80 | Lockwasher | 2 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 16***38 | Switch Group-Magnetic; -Main Relay-Main Power Relay | 1 |
270-7908 Switch Gp-Proximity -Backup Alarm
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 27***08 | Switch Group-Proximity; -Backup Alarm | 1 |
| 2H***22 | Lockwasher | 1 |
158-6632 Switch Gp-Push Button -Horn
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 15***32 | Switch Group-Push Button; -Horn-Fuel Priming Pump | 1 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 2 |
277-5579 Warning Gp-Backup
| 06***09 | Screw; (8-32x0.75-In) | 4 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 4 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
276-3363 Wiring Gp-Chassis
| 27***63 | Wiring Group-Chassis | 1 |
| 31***47 | Harness As-Chassis | 1 |
| 31***86 | Plate | 1 |
312-3088 Wiring Gp-Console
| 31***43 | Harness As-Switch | 1 |
| 31***44 | Harness As-Rear Lighting | 1 |
| 31***88 | Wiring Group-Console | 1 |
310-9839 Wiring Gp-Lighting
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 14 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 4 |
| 1M***33 | Dowel | 2 |
Engine Arrangement
257-0546 Engine Ar
| 10***57 | Pump Group-Engine Oil | 1 |
| 11***68 | Pump Group-Gov & Fuel Inj | 1 |
| 11***01 | Gear Group-Front | 1 |
271-5172 Installation Ar-Engine
| 11***13 | Pulley Group-Fan | 1 |
| 1N***74 | Fumes Disposal Group | 1 |
| 1P***78 | Fan Group-Blower | 1 |
Frame And Body
8p-4168 Case & Frame Gp
| 28***31 | Door As-Access; (Engine, Rh) | 1 |
| 3B***05 | Pin Split Cotter | 1 |
| 3V***99 | Rod As; (Each Includes) | 1 |
296-3172 Door Gp-Access -Rear
| 29***72 | Door Group-Access; -Rear-Waste Handling | 1 |
| 2H***50 | Bolt Head Assembly To Cylinder Block; Bolt-Head Assembly To Cylinder Block | 4 |
| 2J***07 | Nut-Full; (1-8 X38.1 Thd) | 6 |
283-2024 Door Gp-Access -Engine, Rh
| 28***24 | Door Group-Access; -Engine, Rh | 1 |
| 28***32 | Door As-Access; (Engine, Lh), Warning Sign; Warning Triangle | 1 |
| 3B***05 | Pin Split Cotter | 1 |
283-2026 Door Gp-Access -Engine, Lh
| 23***51 | Screw-Button Head; (M10x1.5x25-mm) | 4 |
| 24***41 | Padlock Group; (1 On Fuel Tank Cap) (1 On Hydraulic Tank Cap) (1 On Grill Latch) | 2 |
| 28***26 | Door Group-Access; -Engine, Lh | 1 |
5m-7811 Drawbar Gp -Fixed
| 12***72 | Seal; (135-cm) | 0 |
| 24***41 | Padlock Group; (1 On Fuel Tank Cap) (1 On Hydraulic Tank Cap) (1 On Grill Latch) | 2 |
| 27***39 | Spacer; (10.2x19x5-mm Thk) | 4 |
283-2022 Enclosure Gp-Engine -Lh
| 12***72 | Seal; (135-cm) | 0 |
| 24***41 | Padlock Group; (1 On Fuel Tank Cap) (1 On Hydraulic Tank Cap) (1 On Grill Latch) | 2 |
| 27***39 | Spacer; (10.2x19x5-mm Thk) | 7 |
291-5694 Enclosure Gp-Engine
| 0S***66 | Bolt-Pulley To Crankshaft Adapter | 6 |
| 27***31 | Fender As; (Lh) | 1 |
| 27***57 | Fender As; (Rh) | 1 |
283-2021 Enclosure Gp-Engine -Rh
| 28***21 | Enclosure Group-Engine; -Rh | 1 |
| 28***25 | Plate As | 1 |
| 28***26 | Door Group-Access; -Engine, Lh | 1 |
283-2020 Enclosure Gp-Engine
| 28***20 | Enclosure Group-Engine | 1 |
| 28***23 | Plate As | 1 |
| 28***24 | Door Group-Access; -Engine, Rh | 1 |
291-5772 Fender Gp
| 29***72 | Fender Group; -Waste Handling | 1 |
| 30***48 | Floorplate As; (Base) | 1 |
| 30***49 | Floorplate As; (Rh) | 1 |
276-7976 Fender Gp
| 0S***66 | Bolt-Pulley To Crankshaft Adapter | 6 |
| 27***67 | Plate As; (Lh) | 1 |
| 27***73 | Plate As; (Rh) | 1 |
307-8823 Floorplate Gp
| 2B***74 | Pin-Clevis | 2 |
| 30***20 | Grill As | 1 |
| 30***23 | Floorplate Group; -Canopy | 1 |
308-5386 Grill Gp-Radiator -Heavy-Duty
| 0S***66 | Bolt-Pulley To Crankshaft Adapter | 14 |
| 1F***48 | Nut 12.70 mm(.50 In.) Thread | 2 |
| 2S***34 | Nut,Plain,Rectangul | 1 |
291-5682 Guard Gp-Crankcase
| 0L***14 | Washer-Rops Mounting Bracket To Cover Assembly | 8 |
| 0V***75 | Screw,Cap,Hexagon H Shaft Mtg,Accessory Drive | 8 |
| 29***82 | Guard Group-Crankcase | 1 |
5y-2083 Guard Gp-Crankcase
| 25***13 | Clamp | 4 |
| 30***73 | Guard As; (Lh) | 1 |
| 30***74 | Guard As; (Rh) | 1 |
306-4272 Guard Gp-Cylinder
| 28***63 | Guard As-Rear | 1 |
| 29***14 | Guard As-Fuel Tank; (Rh) | 1 |
| 29***15 | Guard As-Fuel Tank; (Lh) | 1 |
9m-5046 Guard Gp-Final Drive -Forestry
| 13***54 | Spacer; (10.5x19x26.5-mm Thk) | 1 |
| 1F***48 | Nut 12.70 mm(.50 In.) Thread | 4 |
| 23***87 | Plate | 1 |
289-8658 Guard Gp-Fuel Tank
| 28***58 | Guard Group-Fuel Tank; -Waste Handling | 1 |
| 29***88 | Guard As-Radiator; (Bottom) | 1 |
| 29***89 | Plate As | 1 |
276-8602 Guard Gp-Radiator
| 27***02 | Guard Group-Radiator | 1 |
| 28***58 | Guard Group-Fuel Tank; -Waste Handling | 1 |
| 29***72 | Fender Group; -Waste Handling | 1 |
291-5687 Guard Gp-Radiator -Bottom
| 12***75 | Handrail | 2 |
| 1P***91 | Plate, Assem. | 1 |
| 27***86 | Cover As | 1 |
310-6181 Guard Gp-Rear -Forestry
| 31***81 | Guard Group-Rear; -Forestry, Waste Handling | 1 |
| 4Y***23 | Support | 1 |
| 4Y***24 | Pipe | 1 |
276-8585 Hood & Guard Gp
| 1P***69 | Plate | 2 |
| 1P***72 | Spacer; (1.031x1.219x0.75-In Thk) | 8 |
| 27***85 | Hood & Guard Group | 1 |
308-5446 Screen Gp-Protection -Forestry
| 0S***66 | Bolt-Pulley To Crankshaft Adapter | 14 |
| 29***83 | Guard As-Crankcase; (Rear) | 1 |
| 29***84 | Guard As-Crankcase; (Front) | 1 |
4y-8722 Support Gp -Foot
| 11***00 | Bushing | 2 |
| 1A***37 | Bolt Clutch Assembly To Bracket (Fan Support) | 12 |
| 1D***45 | Bolt (6.50" Long) | 2 |
308-5387 Sweep Gp -Forestry
| 22***63 | Roller Group-Track-Single Flange; (Single Flange) | 6 |
| 22***64 | Roller Group-Track-Double Flange; (Double Flange) | 8 |
| 23***31 | Frame Group-Track Roller | 1 |
Fuel System
7c-8993 Fastener Gp-Fuel Inj Pump
| 12***91 | Base As | 1 |
| 12***72 | Filter As-Water Sep & Fuel | 1 |
| 12***75 | Bowl As-Water Collection; (Water Separator, Fuel Filter) | 1 |
1w-8668 Torque Control Gp
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 2 |
| 1W***68 | Torque Control Group | 1 |
111-5162 Control Gp-Fuel Ratio
| 09***15 | Washer-Hard; (20x35x1.6-mm Thk) | 1 |
| 11***62 | Control Group-Fuel Ratio (Basic) | 1 |
| 17***56 | Spring | 1 |
276-0830 Control Gp-Governor
| 27***30 | Control Group-Governor | 1 |
| 27***41 | Cover; (Lh) | 1 |
| 27***43 | Cover; (Rh) | 1 |
277-6746 Cover Gp-Fuel Tank
| 0S***14 | Bolt (.25" Diameter-.50" Long) | 3 |
| 27***46 | Cover Group-Fuel Tank | 1 |
| 2S***83 | Bolt (3.25" Long-Drilled Head) | 1 |
130-2960 Filter Gp-Fuel
| 03***47 | Elbow-Filtered Fuel From Based Assembly | 1 |
| 13***60 | Filter Group-Fuel | 1 |
| 1R***50 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
2w-3282 Filter Gp-Secondary Fuel
| 03***16 | Bolt-Self Locking; (1/4unc X 3/4) | 3 |
| 0S***16 | Screw,Cap,Hexagon H Receptacle Mtg; Bolt Brackets To Firewall Assembly | 6 |
| 13***07 | Seal-Lip Type; (6.39mm) | 1 |
2w-2410 Governor Gp
| 00***53 | Elbow-Pipe; (1/2-14 Nptf Thd) | 1 |
| 00***43 | Elbow 5wd342 - Up Including 5wd329 - 335, 5wd337 - 340 | 1 |
| 13***60 | Filter Group-Fuel | 1 |
277-2477 Lines Gp-Fuel
| 10***53 | Line As-Fuel Injection; (Cyl No. 3) | 1 |
| 10***54 | Line As-Fuel Injection; (Cyl No. 4) | 1 |
| 1W***67 | Clamp As-Fuel Line (With Spacer) | 2 |
4p-9330 Lines Gp-Fuel Injection
| 12***05 | Bracket Assem. | 1 |
| 1W***68 | Clamp-Fuel Line; (Non-Threaded)(Thru Hole) | 4 |
| 1W***69 | Clamp-Fuel Line; (Threaded)(Threaded) | 2 |
113-5341 Lines Gp-Fuel Injection
| 11***41 | Lines Group-Fuel Injection | 1 |
| 1W***95 | Pump Group-Fuel Transfer | 1 |
| 4B***65 | Screw,Cap,Hexagon Fuel Injection Pump | 1 |
4p-9331 Lines Gp-Fuel Injection
| 06***58 | Seal-O-Ring; (Oil Pan Drain Plug) | 1 |
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 1 |
4p-9827 Pump Gp-Fuel Injection
| 0S***15 | Bolt 19 mm (.75 In.) Long Return Air Console To Enclosed Rops | 4 |
| 11***70 | Camshaft Group | 1 |
| 11***71 | Camshaft-Fuel Pump | 1 |
111-3769 Pump Gp-Fuel Injection
| 0S***15 | Bolt 19 mm (.75 In.) Long Return Air Console To Enclosed Rops | 2 |
| 11***69 | Pump Group-Fuel Injection | 1 |
| 1W***69 | Piston | 1 |
1w-1695 Pump Gp-Fuel Transfer
| 11***69 | Pump Group-Fuel Injection | 1 |
| 11***62 | Control Group-Fuel Ratio (Basic) | 1 |
| 1W***95 | Pump Group-Fuel Transfer | 1 |
2w-4160 Pump & Mtg Gp-Fuel Transfer
| 1W***87 | Valve As-Check; (Fuel Injection Pump) | 1 |
| 2W***60 | Pump Group-Fuel Transfer & Mtg; Fuel Transfer Pump And Mounting Group | 1 |
| 4P***30 | Plunger & Barrel Assem. | 1 |
111-3768 Pump Gp-Gov & Fuel Inj
| 03***79 | Seal-O-Ring (Id=10.82mm) | 1 |
| 11***68 | Pump Group-Gov & Fuel Inj | 1 |
| 14***77 | Gasket | 1 |
7c-8992 Seal Gp-Pump
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 2 |
| 1U***46 | Sealant (For Locations A) | 0 |
276-8593 Tank Gp-Fuel
| 1P***52 | Insulator,Bushing Governor | 1 |
| 27***93 | Tank Group-Fuel | 1 |
| 2P***85 | Spacer (.635 mm Thk); (0.635-mm Thk) | 1 |
Hydraulic System
5y-2129 Bracket Gp-Cylinder
| 16***01 | Seal As-Buffer | 1 |
| 16***12 | Seal-U-Cup | 1 |
| 1H***28 | Seal (3.73 In. Inside Diameter) | 1 |
8j-6868 Cylinder Gp-Bulldozer Lift
| 10***68 | Plug | 1 |
| 10***53 | Filter-Oil; (Advanced Efficiency) | 1 |
| 12***17 | Filter-Oil; (Ultra High Efficiency)(Hydraulic, Transmission) | 1 |
9t-2797 Cylinder Gp-Tilt
| 12***78 | Valve Group-Hydraulic; -Bulldozer Lift | 1 |
| 28***60 | Control Group-Hydraulic Hand; -Bulldozer Lift | 1 |
| 9T***97 | Cylinder Group-Tilt; -Bulldozer | 1 |
101-3834 Filter Gp-Oil -Hydraulic
| 10***34 | Filter Group-Oil; -Case Drain-Auger Gear Pump | 1 |
| 12***15 | Pump Group-Gear; -Implement | 1 |
| 12***77 | Valve & Mtg Group-Main Control; -Bulldozer, Ripper | 1 |
329-7810 Hydraulic Ar-1 Valve -Bulldozer Lift
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 16 |
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 2 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 8 |
277-2489 Hydraulic Ar-1 Valve -Bulldozer Lift
277-2490 Hydraulic Ar-2 Valve -Bulldozer, Ripper
| 03***50 | Elbow (Check Valve Drain Tube) | 2 |
| 12***32 | Flange | 4 |
| 13***35 | Bracket | 1 |
329-7811 Hydraulic Ar-2 Valve -Bulldozer Lift, Ripper
| 03***59 | Connector | 1 |
| 0S***85 | Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine | 3 |
| 0S***87 | Bolt-Bracket Assembly To Timing Gear | 4 |
277-2491 Hydraulic Ar-2 Valve -Bulldozer Lift, Ripper
| 27***91 | Hydraulic Ar-2 Valve; -Bulldozer Lift, Ripper | 1 |
| 30***29 | Hose As | 2 |
| 30***30 | Hose As | 2 |
329-7812 Hydraulic Ar-3 Valve -Bulldozer Lift, Tilt, Ripper
| 1P***35 | Connector | 2 |
| 28***86 | Hose As | 1 |
| 28***87 | Hose As | 1 |
276-2824 Lines Gp-Bulldozer
| 12***83 | Plate | 1 |
| 12***22 | Spacer; (13x25x64-mm Thk) | 1 |
| 17***69 | Spacer; (11x20x40-mm Thk) | 1 |
140-6634 Lines Gp-Bulldozer
| 03***88 | Connector-Tube Assembly To Main Relief | 2 |
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 7 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 40 |
307-5331 Lines Gp-Bulldozer
| 13***43 | Pump Group-Gear; -Implement | 1 |
| 30***31 | Oil Suction Screen, Lines Group-Bulldozer; -Waste Handling | 1 |
| 5F***06 | Packing,Preformed Pump Mtg Part Of Kit P/N 5r***25 | 1 |
276-9137 Lines Gp-Pump
| 00***14 | Ring-Retaining; (Internal) | 1 |
| 0S***95 | Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard | 8 |
| 13***42 | Body Assem. | 1 |
281-6884 Lines Gp-Rear Attachment
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 1U***27 | Guide-Valve | 1 |
| 20***21 | Plate | 1 |
7t-9463 Lines Gp-Tilt Cylinder
| 20***01 | Valve Group-Bank 2; -Bulldozer, Ripper | 1 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 2 |
| 3J***54 | Packing,Preformed Part Of Kit P/N 5r***27 | 1 |
277-9075 Lines Gp-Tilt Cylinder
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 03***27 | Seal-O-Ring; (19.18mm Id) | 1 |
| 11***32 | Plug Assem. | 1 |
130-5643 Pump Gp-Gear -Implement
| 11***60 | Check As-Load | 1 |
| 13***43 | Pump Group-Gear; -Implement | 1 |
| 20***11 | Kit-Seal; (Spool)(Control Valve) | 1 |
128-3215 Pump Gp-Gear -Implement
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 03***27 | Seal-O-Ring; (19.18mm Id) | 1 |
| 11***32 | Plug Assem. | 2 |
276-2800 Tank Gp-Hydraulic
| 11***60 | Check As-Load | 1 |
| 20***11 | Kit-Seal; (Spool)(Control Valve) | 2 |
| 20***14 | Kit-Boot; (Spool)(Control Valve) | 1 |
143-8588 Cylinder Ar-Tilt
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 1 |
| 0T***55 | Bolt; (3/8-16x4.25-In)(Location S) | 4 |
| 14***88 | Tilt Ar | 1 |
329-7814 Valve & Mtg Gp-Bulldozer -Lift
| 12***58 | Spacer; (15x25x25-mm Thk), Tee, Tee; Replaces 420717a1 | 3 |
| 20***00 | Valve Group-Bank 1; -Bulldozer Lift | 1 |
| 32***14 | Valve & Mtg Group-Bulldozer; -Lift | 1 |
329-7815 Valve & Mtg Gp-Control -Bulldozer Lift, Tilt, Ripper
| 2A***51 | Nut-Jam; (3/8-24-Thd) | 1 |
| 32***15 | Valve & Mtg Group-Control; -Bulldozer Lift, Tilt, Ripper | 1 |
| 6V***03 | Seal-O-Ring (Id=26.59mm) | 1 |
128-5677 Valve & Mtg Gp-Main Control -Bulldozer, Ripper
| 12***77 | Valve & Mtg Group-Main Control; -Bulldozer, Ripper | 1 |
| 2A***51 | Nut-Jam; (3/8-24-Thd) | 1 |
| 6V***03 | Seal-O-Ring (Id=26.59mm) | 1 |
329-7821 Valve Gp-Bank 1 -Bulldozer Lift
| 22***27 | Blade Group-Angling | 1 |
| 25***80 | Bracket | 1 |
| 32***21 | Valve Group-Bank 1; -Bulldozer Lift | 1 |
203-0300 Valve Gp-Bank 1 -Bulldozer Lift
| 20***00 | Valve Group-Bank 1; -Bulldozer Lift | 1 |
| 3B***89 | Fitting-Grease; (Fan And Alternator Drive) | 4 |
| 3F***54 | Knob End | 1 |
203-0301 Valve Gp-Bank 2 -Bulldozer, Ripper
| 14***34 | Lines Group-Bulldozer | 1 |
| 20***01 | Valve Group-Bank 2; -Bulldozer, Ripper | 1 |
| 22***27 | Blade Group-Angling | 1 |
315-5774 Valve Gp-Bank 3 -Bulldozer Lift, Tilt, Ripper
| 14***34 | Lines Group-Bulldozer | 1 |
| 25***80 | Bracket | 1 |
| 30***85 | Blade Group-Angling | 1 |
203-0309 Valve Gp-Control -Bulldozer Lift
| 20***09 | Valve Group-Control; -Bulldozer Lift | 1 |
| 22***27 | Blade Group-Angling | 1 |
| 25***80 | Bracket | 1 |
203-0310 Valve Gp-Control -Bulldozer Tilt, Ripper
| 14***34 | Lines Group-Bulldozer | 1 |
| 20***10 | . Lever, Valve Group-Control; -Bulldozer Tilt, Ripper | 1 |
| 22***27 | Blade Group-Angling | 1 |
333-8256 Valve Gp-Control
| 16***05 | Cap-Bearing | 2 |
| 30***42 | C-Frame As | 1 |
| 33***56 | Valve Group-Control | 1 |
333-8255 Valve Gp-Control
| 16***05 | Cap-Bearing | 2 |
| 33***55 | Valve Group-Control | 1 |
| 3K***34 | Washer 6.35 mm(.250 In.) Thick; Washer-- Rear Support To Frame | 4 |
333-8257 Valve Gp-Flow Control & Relief -Inlet
| 33***57 | Valve Group-Flow Control & Relief; -Inlet | 1 |
| 3B***14 | Washer,Lock Head Mtg Uoc:Bsv,Bsx | 12 |
| 4J***47 | Trunnion Assem. | 2 |
128-5678 Valve Gp-Hydraulic -Bulldozer Lift
| 12***78 | Valve Group-Hydraulic; -Bulldozer Lift | 1 |
| 3J***26 | Reinforcement | 1 |
| 3J***29 | Plate-Wear-Rh | 1 |
337-3226 Valve Gp-Relief
| 22***18 | Blade As-Angling | 1 |
| 33***26 | Valve Group-Relief | 1 |
| 3B***12 | Lockwasher (3/4") Transfer Gear Case To Frame Mounting | 16 |
135-0829 Valve Gp-Relief -Bulldozer Lift, Tilt, Ripper
| 13***29 | Valve Group-Relief; -Bulldozer Lift, Tilt, Ripper | 1 |
| 9J***28 | Blade As-Angling | 1 |
135-0814 Valve Gp-Relief -Main
| 13***14 | Valve Group-Relief | 1 |
| 9J***28 | Blade As-Angling | 1 |
337-3227 Valve Gp-Relief
| 30***86 | Blade As-Angling | 1 |
| 33***27 | Valve Group-Relief | 1 |
| 3B***26 | Cotter (Not Shown) | 1 |
Implements
9j-9150 Brace Gp-Bulldozer
| 2J***06 | Nut Front Support To Frame; Nut-Front Support To Frame | 32 |
| 3G***97 | End Bit (R.H.-Hot Cupped) | 1 |
| 3G***98 | End Bit (L.H.-Hot Cupped) | 1 |
316-6239 Bulldozer Ar-Angling
| 27***42 | Mounting Group-Cab; -Non-Rops | 1 |
| 30***23 | Floorplate Group; -Canopy | 1 |
| 30***13 | Dash Group; -Canopy | 1 |
281-6880 Bulldozer Ar-Angling
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 11***98 | Harness Assembly; (Blower) | 1 |
| 13***00 | Clip; (Tab) | 2 |
293-3118 Bulldozer Ar-Angling
| 12***80 | Shield-Striker | 2 |
| 13***54 | Screw-Truss Head; (M4x0.7x10-mm) | 4 |
| 17***93 | Bumper; (Rubber) | 2 |
316-6240 Bulldozer Ar-Angling
| 30***41 | Support Group-Rops; -Chassis, Front | 1 |
| 30***23 | Floorplate Group; -Canopy | 1 |
| 30***13 | Dash Group; -Canopy | 1 |
282-5954 Bulldozer Ar-Angling
| 27***42 | Plate; (Lh) | 1 |
| 27***43 | Plate; (Rh) | 1 |
| 27***91 | Bracket As; (Lh) | 1 |
9j-9469 C-Frame Gp-Power Angling
| 23***09 | Mirror Group-Rear View; -Interior | 1 |
| 30***44 | Canopy As | 1 |
| 6V***28 | Hook - Coat | 1 |
306-1041 C-Frame Gp-Power Angling
| 21***05 | Film; (Warning) (No Weld/ No Drill) (Rearward Of Rh Cab Door) | 1 |
| 23***09 | Mirror Group-Rear View; -Interior | 1 |
| 30***41 | C-Frame Group-Power Angling | 1 |
4j-2848 Trunnion Gp-Bulldozer
| 09***45 | Washer; (16.6x24x1.2-mm Thk) | 5 |
| 12***99 | Bar | 1 |
| 13***45 | Pin-Spring | 1 |
Lubrication System
8n-4457 Base Gp-Oil Filter
| 2W***62 | Breather As-Crankcase; (Engine) | 1 |
| 3H***43 | Bolt,Machine Breather Assembly To Cover | 1 |
| 5N***85 | Washer-Sealing; (Sealing) | 1 |
1p-4244 Breather Gp
| 1P***44 | Breather Group | 1 |
| 2P***01 | Bolt Oil Filler Mounting; Used On Replacement Engine P/N 5r***83 | 2 |
| 2P***06 | Bolt,Machine Water Housing Mounting | 1 |
9s-3154 Filler Gp-Engine Oil
| 4D***88 | Clip-(Slot To Fit Fastener M10 Or 3/8) | 1 |
| 4W***81 | Hose-Disposal; (Fumes) | 1 |
| 9M***04 | Clamp Breather And Fumes Disposal; Used On Replacement Engine P/N 5r***83 | 1 |
4n-5139 Filler Gp-Engine Oil
| 4N***39 | Filler Group-Oil | 1 |
| 7S***01 | Anchor Wire,Safety | 1 |
| 7S***03 | Cap As-Oil Filler; (Engine) | 1 |
1n-4874 Fumes Disposal Gp
| 1N***74 | Fumes Disposal Group | 1 |
| 2P***47 | Filler Neck Oil Gage | 1 |
| 2P***97 | Tube A Oil Level Gage | 1 |
2p-6493 Gauge Gp-Oil Level (Dipstick) -Engine
| 0L***64 | Lock --To Reverse Driven Gear Splash Pan; -- To Reverse Driven Gear Splash Pan | 1 |
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 1 |
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 1 |
2p-6105 Lines Gp-Engine Oil
| 03***48 | Elbow (3/4" Tapped Pumps) - 2nd Type | 1 |
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 1 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
7e-5683 Lines Gp-Turbocharger Oil
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 3 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 1 |
| 10***58 | Pump Group-Engine Oil | 1 |
106-8958 Pump Gp-Engine Oil
| 0L***52 | Capscrew (3/8 - 16 Nc X 3 1/4 Gd8, Hex) | 1 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 1 |
| 10***58 | Pump Group-Engine Oil | 1 |
106-8957 Pump Gp-Engine Oil
| 03***79 | Seal-O-Ring (Id=10.82mm) | 1 |
| 10***57 | Pump Group-Engine Oil | 1 |
| 14***77 | Gasket | 1 |
Machine Arrangement
277-2428 Chassis Ar
| 24***41 | Padlock Group; (1 On Fuel Tank Cap) (1 On Hydraulic Tank Cap) (1 On Grill Latch) | 1 |
| 27***06 | Seat Group; -Vinyl | 1 |
| 27***30 | Control Group-Governor | 1 |
310-6183 Forestry Ar
| 29***82 | Guard Group-Crankcase | 1 |
| 29***87 | Guard Group-Radiator; -Bottom-Waste Handling | 1 |
| 29***94 | Enclosure Group-Engine; -Heavy-Duty-Waste Handling | 1 |
275-1906 General Ar
| 25***46 | Engine Ar | 1 |
| 27***72 | Installation Ar-Engine | 1 |
| 27***06 | General Ar | 1 |
Operator Station
6w-8505 Adjuster Gp-Seat
| 09***45 | Washer; (16.6x24x1.2-mm Thk) | 6 |
| 10***13 | Film; (Instruction) (Dozer Control) (On Raised Surface To Right Side Of Dozer Control) | 1 |
| 1B***76 | Pin,Straight,Headed Governor And Decelerator Control | 4 |
198-7281 Blower Gp-Cab
| 09***45 | Washer; (16.6x24x1.2-mm Thk) | 2 |
| 13***57 | Film-Instruction; (Bulldozer Control) | 1 |
| 19***81 | Blower Group-Cab | 1 |
276-8590 Bracket Gp-Mounting -Non-Rops
| 09***45 | Washer; (16.6x24x1.2-mm Thk) | 2 |
| 13***57 | Film-Instruction; (Bulldozer Control) | 1 |
| 1B***76 | Pin,Straight,Headed Governor And Decelerator Control | 5 |
311-0930 Cab Gp-Enclosed Rops
| 06***08 | . Washer; Thrust, Rod End-Yoke | 2 |
| 09***15 | Washer-Hard; (20x35x1.6-mm Thk) | 3 |
| 0S***85 | Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine | 3 |
308-5366 Canopy Ar-Non-Rops -Forestry
| 11***47 | Screw-Machine; (6-32x0.625-In) | 6 |
| 17***31 | Screw; (Truss Head) (M4x0.7x12mm) | 4 |
| 17***31 | Filter Element-Cab Air; (Ultra High Efficiency) | 1 |
308-0176 Canopy Ar-Open Rops
| 17***31 | Screw; (Truss Head) (M4x0.7x12mm) | 4 |
| 29***90 | Plate | 1 |
| 29***92 | Sheet-Rubber | 1 |
308-3643 Canopy Gp-Non-Rops
| 11***87 | Seal; (132-cm) | 0 |
| 18***45 | Latch As-Rotary | 1 |
| 1S***44 | Pin (9.40mm Od) | 1 |
312-0446 Canopy Gp-Open Rops
| 11***87 | Seal; (132-cm) | 0 |
| 18***46 | Latch As; (Rotary) | 1 |
| 1S***44 | Pin (9.40mm Od) | 1 |
223-7139 Control Gp-Decelerator
| 10***71 | Clevis | 1 |
| 17***83 | Link As | 1 |
| 17***93 | Bumper; (Rubber) | 1 |
329-7800 Control Gp-Hydraulic Hand -Bulldozer Lift
| 09***66 | Washer; (Hard) (4.5x9x1mm Thk) | 2 |
| 10***06 | Receptacle Kit; (Includes Wedge And Receptacle Assem.) | 1 |
| 10***04 | Suppressor As-Arc | 2 |
329-7801 Control Gp-Hydraulic Hand -Bulldozer Lift, Ripper
| 28***49 | Liner | 1 |
| 28***50 | Liner | 1 |
| 28***51 | Liner | 1 |
288-3460 Control Gp-Hydraulic Hand -Bulldozer Lift, Ripper
| 09***66 | Washer; (Hard) (4.5x9x1mm Thk) | 2 |
| 10***06 | Receptacle Kit; (Includes Wedge And Receptacle Assem.) | 1 |
| 10***04 | Suppressor As-Arc | 2 |
276-9970 Control Gp-Hydraulic Hand -Bulldozer Lift, Tilt
| 10***71 | Clevis | 1 |
| 17***83 | Link As | 1 |
| 17***93 | Bumper; (Rubber) | 1 |
329-7802 Control Gp-Hydraulic Hand -Bulldozer Lift, Tilt, Ripper
| 32***02 | Control Group-Hydraulic Hand; -Bulldozer Lift, Tilt, Ripper | 1 |
| 5K***79 | Bolt-Round Head; (3/8-16x11-In) | 1 |
| 5P***74 | Mirror; (Rear View) | 1 |
281-0360 Control Gp-Hydraulic Hand -Bulldozer Lift
| 12***09 | Lock As-Cylinder | 1 |
| 22***91 | Latch As | 1 |
| 22***31 | Cam-Lock | 1 |
274-8987 Control Gp-Transmission
| 14***32 | Mounting As | 8 |
| 17***31 | Washer; (26x135x12-mm Thk) | 4 |
| 27***43 | Pad As; (Rear) | 2 |
6w-2519 Cushion Gp-Arm -Rh
| 19***81 | Washer-Hard; (22x40x10-mm Thk) | 16 |
| 31***53 | Mount | 8 |
| 31***69 | Pad As; (Rh) | 1 |
6w-2520 Cushion Gp-Arm -Lh
| 17***93 | Bumper; (Rubber) | 2 |
| 18***13 | Straiker Bolt | 2 |
| 30***47 | Frame As; (Rh) | 1 |
308-3613 Dash Gp -Canopy
| 03***43 | Nut; (5/16-18 Thd) | 4 |
| 11***36 | Screw-Flat Head; (5/16-18x0.875-In) | 4 |
| 30***13 | Dash Group; -Canopy | 1 |
276-1391 Dash Gp -Cab
| 27***91 | Dash Group; -Cab | 1 |
| 33***69 | Seat Group-Suspension | 1 |
| 8T***02 | Bolt-Plt; (3/8unc X 1 1/8) | 4 |
308-5449 Door Gp-Cab -Rh
311-4463 Door Gp-Cab -Rh
| 09***41 | Pin-Cotter | 2 |
| 13***65 | Cover | 1 |
| 19***99 | Screw-Button Head; (M8x1.25x20-mm) | 4 |
311-4465 Door Gp-Cab -Lh-Enclosed Rops
| 02***24 | Locknut; (1/4-20-Thd) | 2 |
| 1B***93 | Bolt; (1/4-20x0.62-In) | 2 |
| 2K***73 | Locknut Inside Guard Assembly | 12 |
308-5450 Door Gp-Cab -Lh
| 2S***15 | Washer 4.78 mm(.188 In.) Thick; Washer- Front Support To Frame | 12 |
| 30***50 | Door Group-Cab; -Lh | 1 |
| 31***96 | Support As; (Lh) | 1 |
308-3622 Guard Gp-Vandalism
| 12***68 | Film-Identification; (Cat, Lh) | 1 |
| 12***69 | Film-Identification; (Cat, Rh) | 1 |
| 23***88 | Film-Identification; (Caterpillar, Rear) | 1 |
276-1471 Instrument Gp -Cab
| 27***71 | Instrument Group; -Cab | 1 |
| 29***75 | Film-Identification; (Caterpillar) | 1 |
| 29***78 | Film-Identification; (Cat, Lh) | 1 |
308-5517 Instrument Gp
| 13***58 | Film; (Identification) (On Radiator Filler Cap) (On Near Of Radiator Filler Cap) | 1 |
| 14***47 | Film; (Identification) (24v) (On Outside Of Battery Compartment Door) | 1 |
| 19***86 | Film; (Safety) (To Right And Left Of Fuel Tank) | 2 |
288-3948 Liner Gp-Cab
| 12***98 | Film Group | 1 |
| 13***58 | Film; (Identification) (On Radiator Filler Cap) (On Near Of Radiator Filler Cap) | 1 |
| 1P***07 | Film-Symbol; 2 On Bottom Of Upper Frame Below Engine. 2 On Front Of Upper Frame Above Boom Articulation | 4 |
239-6709 Mirror Gp-Rear View -Interior
| 23***09 | Mirror Group-Rear View; -Interior | 1 |
274-4842 Mounting Gp-Cab -Non-Rops
| 27***42 | Mounting Group-Cab; -Non-Rops | 1 |
312-3122 Mounting Gp-Rops -Open
| 31***22 | Mounting Group-Rops; -Open | 1 |
275-8106 Seat Gp -Vinyl
| 27***06 | Seat Group; -Vinyl | 1 |
8y-3914 Seat Gp-Suspension -Vinyl
| 8Y***14 | Seat Group-Suspension | 1 |
301-8041 Support Gp-Rops
| 30***41 | Support Group-Rops; -Chassis, Front | 1 |
276-0836 Support Gp-Seat
| 27***36 | Support Group-Seat | 1 |
6w-8502 Suspension Gp-Seat
| 6W***02 | Suspension Group-Seat | 1 |
Power Train
3s-6846 Case & Parts Gp-Planetary
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 3 |
| 0T***73 | Bolt (3/8) (63.5mm Long) (On Cab Of Cover Assem.) | 3 |
| 1A***60 | Capscrew, Hex Head (1/2 - 13 X 2 G5); (Hex Head) (1/2-13x2 Gd 8 Z) | 2 |
8m-6350 Control Gp-Transmission Hyd
| 0S***95 | Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard | 1 |
| 1D***18 | Nut .4375 In.(11.11 mm) I.D. | 6 |
| 2S***95 | Gaskets | 2 |
4w-5894 Cooler Gp-Transmission Oil
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 6 |
| 1A***60 | Capscrew, Hex Head (1/2 - 13 X 2 G5); (Hex Head) (1/2-13x2 Gd 8 Z) | 8 |
| 1D***19 | Nut-Retainer To Fan Bracket Assembly | 8 |
2s-6450 Cover Gp-Shipping -Transmission
| 0L***26 | Plug -13mm(.512 In.) Outside Dia. | 6 |
| 0S***30 | Pin (Part Of 2s***65 Assem.) | 2 |
| 11***18 | Sprocket Group | 2 |
226-3467 Drive Gp-Final
| 0S***95 | Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard | 4 |
| 12***62 | Housing Assem. | 1 |
| 13***76 | Filter Element As-Oil; (Ultra High Efficiency)(Ultra High Efficiency) | 1 |
127-1661 Filter Gp-Oil -Power Train
| 0S***85 | Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine | 24 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 6 |
| 12***61 | Filter Group-Power Train | 1 |
9m-2041 Gear Gp-Transfer
| 03***47 | Elbow-Filtered Fuel From Based Assembly | 1 |
| 0S***15 | Bolt 19 mm (.75 In.) Long Return Air Console To Enclosed Rops | 2 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 1 |
232-2974 Lines Gp-Drain
| 00***62 | Elbow (To Primary Filter Base) | 4 |
| 03***35 | Connector-Flared | 1 |
| 03***42 | Elbow Hose Assembly To | 1 |
277-3351 Lines Gp-Power Train Oil
| 10***99 | Bearing-Ball (88.9mm Id) | 1 |
| 1K***86 | Ring-Retaining | 2 |
| 1M***98 | Seal Ring,Metal | 2 |
7g-4244 Planetary Gp-Transmission
| 12***82 | Mechanism Group-Brake | 1 |
| 22***67 | Drive Group-Final | 1 |
| 27***19 | Control Group-Steering Clutch | 1 |
277-4192 Power Train Ar
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 1 |
| 1P***83 | Cover As-Pump | 1 |
3p-6816 Pump Gp-Gear -Power Train Oil
| 1B***05 | Key; (Woodruff) | 2 |
| 3P***16 | Pump Group-Oil; -Power Train Oil | 1 |
| 4F***58 | Gear-Oil Pump Drive; (10-Teeth) | 2 |
5m-7864 Pump Gp-Scavenge -Torque Converter
| 2M***38 | Stud-Taperlock; (3/8-16x1.6-In)(40mm Length) | 4 |
| 2M***79 | Stud-Taperlock; (3/8-16x0.177-In)(45mm) | 4 |
| 3H***91 | Screw-Machine; (3/8-16x0.5-In) | 2 |
9m-8669 Screen Gp-Magnetic -Power Train Oil
| 11***16 | Segment-Sprocket | 5 |
| 11***17 | Bolt-Segment; (3/4-16x2-In) | 20 |
| 11***32 | Hub As | 1 |
117-1618 Sprocket Gp
| 11***18 | Sprocket Group | 1 |
| 1K***86 | Ring-Retaining | 1 |
| 1T***51 | Impeller,Pump,Centr | 1 |
1t-0930 Torque Converter Gp
| 0L***24 | Gasket Drain Tube Bushing To Flywheel Housing | 1 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 3 |
| 0T***73 | Bolt (3/8) (63.5mm Long) (On Cab Of Cover Assem.) | 3 |
9p-2633 Torque Converter Gp
| 2S***50 | Cover Group-Shipping; -Transmission | 1 |
| 3S***46 | Case & Parts Group-Planetary | 1 |
| 7G***44 | Planetary Group | 1 |
7g-4245 Transmission Ar
| 1S***70 | Spider And Bearing Assembly | 2 |
| 3B***89 | Fitting-Grease; (Fan And Alternator Drive) | 1 |
| 3H***22 | Grease Nipple (Service Replacement Only) | 2 |
5m-7882 Universal Joint Gp
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 7 |
| 1P***73 | Cover | 1 |
| 1P***12 | Stop | 1 |
8p-7791 Valve Gp-Pressure Control -Transmission Oil
| 06***40 | Seal-O-Ring (Id=37.69mm) | 1 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 4 |
| 14***46 | Plug-Pipe | 1 |
2p-3675 Valve Gp-Relief -Torque Converter Outlet
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 2 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 2P***75 | Valve Group-Relief; Valve Gp-Pressure Relief | 1 |
7g-4491 Valve Gp-Relief -Transmission Lubrication
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 3 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 4 |
| 1K***62 | Spool-Valve | 1 |
9p-1533 Valve Gp-Relief -Torque Converter Inlet
| 1P***96 | Spool-Speed Selector | 1 |
| 2B***58 | Plug--To Block Upper Front Air Manifold | 4 |
| 2D***42 | Ball 6.35 mm(.25 In.)Diameter | 1 |
1p-6591 Valve Gp-Selector -Transmission Clutch
| 0L***27 | Plug-Drain; (2-12) | 2 |
| 0L***24 | Gasket Drain Tube Bushing To Flywheel Housing | 2 |
| 0L***61 | Pin-Dowel; (9.4mm X 22mm) | 4 |
Service Equipment And Supplies
291-5274 Film Gp -Xl
| 29***74 | Film Group; -Xl | 1 |
126-2498 Film Gp
| 12***98 | Film Group | 1 |
301-3269 Plate & Film Gp
| 30***69 | Plate & Film Group | 1 |
283-3098 Plate & Film Gp -International
| 28***98 | Plate & Film Group; -International | 1 |
Steering And Braking System
276-2200 Brake Gp-Steering
| 0L***61 | Washer | 6 |
| 12***09 | Lever As | 1 |
| 12***10 | Lever As | 1 |
5m-7745 Clutch Gp-Steering
| 03***73 | Bolt; (3/8-16x1.5-In) | 2 |
| 06***08 | . Washer; Thrust, Rod End-Yoke | 1 |
| 08***09 | Cable Assem. | 2 |
274-8958 Control Gp-Parking Brake
| 06***35 | Fitting-Pipe | 2 |
| 0L***21 | Plug 1.75 In. (4.44 cm) Diameter | 2 |
| 12***64 | Housing-Brake Booster | 1 |
274-8819 Control Gp-Steering Clutch
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 1 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 2 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 3 |
125-9182 Mechanism Gp-Brake
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 2 |
| 12***82 | Mechanism Group-Brake | 1 |
| 1B***55 | Nut,Plain,Hexagon Turbocharger Mounting | 2 |
126-2829 Valve Gp-Control -Steering Clutch
| 12***29 | Valve Group-Control; -Steering Clutch | 1 |
| 7T***63 | Lines Group-Tilt Cylinder; Tilt Cylinder Lines Group | 1 |
| 9T***97 | Cylinder Group-Tilt; -Bulldozer | 2 |
Undercarriage
6y-4316 Bar Gp-Equalizer
| 1A***35 | Bolt 2.00 In. (5.08 cm) Long | 16 |
| 1B***67 | Bolt, Hex. Hd., 5/8"-11 N.C. X 3" | 8 |
| 1S***34 | Bracket-Roller | 4 |
226-3476 Frame Ar-Track Roller
| 22***76 | Frame Ar-Track Roller | 1 |
| 23***32 | Frame Group-Track Roller | 1 |
| 6Y***15 | Frame Group-Track Roller | 1 |
6y-4315 Frame Gp-Track Roller
| 1A***35 | Bolt 2.00 In. (5.08 cm) Long | 16 |
| 1B***67 | Bolt, Hex. Hd., 5/8"-11 N.C. X 3" | 8 |
| 1S***34 | Bracket-Roller | 4 |
238-2032 Frame Gp-Track Roller
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 24 |
| 0S***25 | Bolt, Hex. Hd., 5/8"-11 N.C. X 2 1/2" | 8 |
| 0T***29 | Locking Plate,Nut A Pump Mtg Part Of Kit P/N 5r***25 | 2 |
238-2031 Frame Gp-Track Roller
| 1F***48 | Nut 12.70 mm(.50 In.) Thread | 2 |
| 1F***50 | Nut Rops Support | 1 |
| 1S***42 | Plate Warning; On Access Doors To Track Adjuster Cylinders After Removal Of 1s***19 Plate | 1 |
6y-4313 Guard Gp-Track Roller
| 15***71 | Ring; (Thrust) | 78 |
| 16***19 | Track Pin | 39 |
| 20***44 | Seal As | 78 |
6y-4314 Idler Gp-Front
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 3 |
| 1H***96 | Packing,Preformed Cartridge Part Of Kit P/N 4j***80 | 1 |
| 1M***91 | Pin,Straight,Headle | 2 |
236-9864 Link As-Track
| 1D***08 | Bolt-(3/4" X 2-3/4")-Rops Mounting Bracket To Fender | 4 |
| 23***88 | Roller Group-Track-Double Flange; -Heavy-Duty | 1 |
| 23***64 | Link As-Track | 1 |
3t-3206 Roller Gp-Track Carrier
| 11***98 | Bushing Assem. | 2 |
| 11***02 | Shaft-Track Roller | 1 |
| 11***48 | Ring-Retaining | 2 |
231-3088 Roller Gp-Track-Double Flange
| 11***98 | Bushing Assem. | 2 |
| 11***02 | Shaft-Track Roller | 1 |
| 11***48 | Ring-Retaining | 2 |
228-0964 Roller Gp-Track-Double Flange
| 1D***08 | Bolt-(3/4" X 2-3/4")-Rops Mounting Bracket To Fender | 4 |
| 22***64 | Roller Group-Track-Double Flange; (Double Flange) | 1 |
| 23***87 | Roller Group-Track-Single Flange; -Heavy-Duty | 1 |
228-0963 Roller Gp-Track-Single Flange
| 1S***59 | Bolt 2.15 In. (54.61 mm) Long | 152 |
| 1S***60 | Nut-Track; (3/4-16-Thd) | 152 |
| 22***63 | Roller Group-Track-Single Flange; (Single Flange) | 1 |
231-3087 Roller Gp-Track-Single Flange
| 1S***59 | Bolt 2.15 In. (54.61 mm) Long | 152 |
| 1S***60 | Nut-Track; (3/4-16-Thd) | 152 |
| 23***87 | Roller Group-Track-Single Flange; -Heavy-Duty | 1 |
226-3481 Track Gp -2-Required
| 12***63 | Lever | 1 |
| 12***65 | Tube Assem. | 1 |
| 12***71 | Shaft | 1 |
100-4437 Track Gp
| 10***37 | Track Group; -2 Required | 1 |
| 22***76 | Frame Ar-Track Roller | 1 |
| 6Y***16 | Equalizer Bar Group | 1 |
6y-6897 Track Gp
| 10***37 | Track Group; -2 Required | 1 |
| 6Y***97 | Track Group; -2 Required | 1 |
283-5390 Undercarriage Ar
| 0L***41 | Nut; (1-1/2-12-Thd)(Spl) | 2 |
| 1A***87 | Disc | 8 |
| 1D***90 | Bolt 4.75 In.(120.65 mm) Long | 16 |
Work Tools
225-9318 Blade As-Angling
| 22***18 | Blade As-Angling | 1 |
305-9486 Blade As-Angling
| 30***86 | Blade As-Angling | 1 |
9j-8428 Blade As-Angling
| 9J***28 | Blade As-Angling | 1 |
226-2127 Blade Gp-Angling
| 22***27 | Blade Group-Angling | 1 |
305-9485 Blade Gp-Angling
| 30***85 | Blade Group-Angling | 1 |
7j-2778 Edge Gp-Bit & Cutting -Angling
| 7J***78 | Edge Group-Bit & Cutting; -Angling | 1 |
D6G2 XL serial number reference
The D6G2 XL PIN plate is riveted to the right-hand side of the main frame rail near the rear of the tractor, ahead of the final drive, with the number often stamped into the frame itself just below the plate. The serial reads as an eight-character PIN: the first three letters/numbers are the prefix identifying the model and build series (for example P6G, R6J, C6G), followed by a sequential unit number. Match the full plate reading against your dealer's parts lookup, since engine, transmission, and steering components can carry their own later break points within the same prefix.
| Prefix | Identifies | Notes |
|---|---|---|
| R6J | D6G Series II (D6G2) XL | Chassis PIN prefix beginning at R6J1 and up, factory-fitted with the Cat 3306 diesel. Steering and braking use oil-cooled steering clutches and external contracting band brakes, not differential steering. Select engine fuel-system and governor components under this range are also cataloged with a parallel 10Z break point, pointing to a second concurrent serial series covering the same parts. |
| P6G | D6G Series II (D6G2) XL | Chassis PIN prefix beginning at P6G1000 and up, factory-fitted with the Cat 3306 diesel. Shares the same steering-clutch/brake system and planetary powershift transmission as the rest of the D6G2 XL line. This break point has its own dedicated power-train disassembly-and-assembly manual. |
| C6G | D6G Series II (D6G2) XL, later production | Chassis PIN prefix beginning at C6G1000 and up. Same Cat 3306 diesel and driveline as the other D6G2 XL prefixes. Cat kept the D6G2 XL in production for export markets years after North America moved on to later D6-series tractors; some catalogs tag this range to a non-North-American plant, so treat exact build location and year as approximate and confirm against the PIN plate. |
| 10Z | D6G2 XL (confirm with dealer) | Shows up in the D6G2 XL parts book (from roughly 10Z45331 and up) paired with the R6J range on select engine fuel-system and governor groups. The same 10Z engine-serial series also appears in other 3306-powered track-type tractor catalogs, so treat this as a shared engine-serial series rather than a chassis-exclusive PIN, and check it against your machine's own PIN plate. |
| 7JA | D6G2 XL / D6G2 LGP shared transmission break (confirm with dealer) | Marks a running change in the planetary transmission case and its hydraulic controls, beginning at 7JA1 and up. The same break point also appears in the D6G2 LGP parts book for the identical transmission hardware, so it looks like a transmission-assembly serial point shared across D6G2 configurations rather than an XL-only chassis PIN. |
| 1ZT | D6G2 XL power train (confirm with dealer) | Marks a running change in the torque converter group within the D6G2 XL power train, beginning at 1ZT1 and up. Found only in the machine's own parts catalog with no independent corroboration, so confirm against the torque converter's own tag or your dealer before ordering on this basis alone. |
Frequently asked questions
What engine does the Caterpillar D6G2 XL use?
A Cat 3306T turbocharged inline-six diesel, mechanically governed with no electronic engine control. Net power is about 119 kW (160 hp) at 1,900 rpm from 10.5 L displacement.
What is the operating weight of the D6G2 XL?
Around 16,880 kg (37,220 lb) in standard XL configuration. Weight varies with blade choice (S or A) and attachments; the lighter Series I D6G it replaced ran closer to 15,435 kg (34,028 lb).
What replaced the Caterpillar D6G2 XL?
There is no direct nameplate successor. Cat moved North American D6-class production to the electronically monitored D6R in the mid-1990s while the D6G2 continued as an export-market build on the older mechanical platform; the later D6R/D6M and then D6N/D6T/D6/D6 XE generations carried the D6 class forward with electronic engine and transmission control.
What D6G2 XL owners discuss
What engine problems come up most often on the D6G2 XL's 3306 diesel?
Cylinder head trouble (cracking, blown head gaskets) is the most-repeated complaint on the 3306/3306T family used in this dozer class, usually turning up after high hours or a period of overheating. Black smoke and flat power are blamed on restricted air intake, a sooted turbo, or a failed air-fuel ratio control diaphragm on turbocharged units far more often than on the injection pump - techs check filters and boost lines before condemning injectors. Otherwise it is regarded as a simple, mechanically-governed engine that runs long between overhauls if oil and coolant service stay current.
Does the powershift transmission have any known quirks owners flag?
Hot-shifting is the recurring theme: the transmission shifts cleanly cold, then hesitates or slips once trans oil reaches full operating temperature, which points to worn clutch packs or tired fluid rather than a bad valve body. Techs check suction screens and confirm filter-outlet pressure is within spec before chasing wiring or linkage. Running anything other than the specified drivetrain oil is repeatedly cited as a cause of slipping, since the friction discs need the correct fluid to hold under load.
What about the steering clutches and brakes - any common failure points?
The D6G2 XL steers with clutch-and-brake, not a hydrostatic or differential system, so a machine that won't turn or pulls to one side usually traces to brake band adjustment or a sticking steering control valve rather than the transmission itself. Experienced techs caution that these bands rarely need adjusting on a well-kept machine, and that chasing an adjustment before confirming linkage condition and internal clutch wear is a common mistake. Loss of steering or brake holding force is a safety item - have your dealer verify clutch and brake condition and adjustment before returning the machine to work.
What undercarriage wear pattern is typical for this machine?
As a standard-gauge XL rather than an LGP, wear tracks more like a general grading/dozing machine than a flotation unit - link and bushing wear comes mainly from ground-engaging work. Owners are told to watch shoe-to-link bolt tightness, sprocket tooth wear (a direct indicator of pin and bushing wear underneath), and roller seal weeping, since the undercarriage alone can account for roughly half the machine's lifetime owning and operating cost. Dry, ungreased-looking pin joints or a sprocket with hooked teeth are weighed more heavily than shoe wear by itself.
Owners report the blade settling or drifting down when parked - what's the usual cause?
Slow blade creep after the blade is left raised is attributed most often to worn piston seals or a leaking internal relief valve in the lift cylinder rather than the control valve itself. The standard field check is capping off a cylinder line and watching whether the blade still drops, which isolates cylinder bypass from a control-valve leak. Low fluid, water or dirt contamination, and worn hose fittings get ruled out first. A blade that won't hold position is a safety concern on this class of machine - have your dealer verify cylinder and valve condition before anyone works under a raised blade.
Are there common electrical or gauge complaints on this dozer?
Reported issues center on sending units and wiring, not the gauge clusters themselves - a temperature or pressure gauge that pegs at key-on or reads incorrectly usually traces to a bad sender, corroded connector, or chafed harness. The usual troubleshooting order is checking circuit breakers first, then testing sender wiring with a multimeter before replacing a gauge. This generation predates factory electronic diagnostics, so there is no fault-code readout to lean on - everything is component-level checking.
What should a buyer inspect on a used D6G2 XL?
Undercarriage first: shoe and link wear, sprocket tooth condition, roller seal leaks, and pin/bushing play, since it drives most of the machine's rebuild cost. Run the 3306 engine under load and confirm it does not smoke and holds oil pressure once fully hot. Let the powershift get to full operating temperature and check for hesitation or slip, and cycle the steering clutches, brakes, and blade hydraulics for drift or delayed response. Because this is an older mechanically-governed machine with no ECM history to pull, a compression or leak-down check plus a full fluid and filter inspection are worth more than trusting the hour meter alone - have your dealer or a qualified tech verify these before purchase.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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