Caterpillarwheel dozer
Caterpillar 814
Maintenance schedule, common problems & OEM parts breakdown
The Cat 814 is Caterpillar's current-production wheel dozer, a rubber-tired machine that pairs track-dozer pushing power with wheel-loader mobility for surface mining cleanup, coal stockpiling, road maintenance, and reclamation work. The present-day 814 (built since 2021) runs the Cat C7.1 engine rated at roughly 249 hp (186 kW) net and 284 hp gross, offered in Tier 4 Final/Stage V emissions trim or a MAR-1/Tier 3-equivalent variant for less-regulated markets, with an operating weight near 22,000 kg (48,500 lb) that shifts with the blade fitted. It ships with a straight blade (2.85 m³ / 3.72 yd³) or a coal blade (10.55 m³ / 13.8 yd³); no ripper or winch is offered on this chassis. It replaces the 814K (2018-2021), which itself followed the 814F/814F II and the original 814/814B.
Caterpillar has reused the 814 model number since the 1970s, so the badge spans several unrelated engine families: the original 814/814B ran Cat 3306 and 2236 engines, the 1990s-2000s 814F/814F II moved through 3306, 3176C, and C9 power, and only the 814K and the current 814 share the C7.1. Across generations the changes track emissions rules and controls: electronic powershift with APECS for smoother, momentum-preserving shifts, centralized ground-level service points with grouped grease fittings, and quieter, better-sealed cabs. For the used and parts market this history matters because parts interchange mostly holds within the C7.1-era pair (814K and current 814) and breaks down against the F-series and vintage machines, so the serial prefix and build date decide which engine and driveline family a given 814 actually belongs to before ordering.
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 814 specifications
Engine
| Engine Model | Cat C7.1, 6-cylinder turbocharged diesel with air-to-air aftercooling |
| Emissions Option 1 | U.S. EPA Tier 4 Final / EU Stage V |
| Emissions Option 2 | Brazil MAR-1, emitting equivalent to U.S. EPA Tier 3 / EU Stage IIIA |
| Rated Speed | 2,200 rpm (both emissions options) |
| Net Power (SAE J1349 / ISO 9249) | 186 kW (249 hp) — same for both emissions options |
| Gross Power (SAE J1995) | 212 kW (284 hp) Tier 4 Final/Stage V; 213 kW (286 hp) Tier 3/Stage IIIA equivalent |
| Engine Power (ISO 14396) | 205 kW (275 hp), both emissions options |
| Peak Torque at 1,400 rpm | 1,223 N·m (902 lbf-ft), 52% torque rise — Tier 4 Final/Stage V; 1,016 N·m (749 lbf-ft), 26% torque rise — Tier 3/Stage IIIA equivalent |
| Bore x Stroke | 105 mm x 135 mm (4.1 in x 5.3 in) |
| Displacement | 7.01 L (427.8 in³) |
| High Idle Speed | 2,270 rpm |
| Low Idle Speed | 800 rpm |
| Maximum Altitude without Derating | 3,000 m (9,843 ft) |
| Aftertreatment (Tier 4 Final/Stage V) | Diesel Particulate Filter, Diesel Oxidation Catalyst, and Selective Catalytic Reduction, plus diesel exhaust fluid dosing |
Weights
| Operating Weight — Tier 4 Final/Stage V, straight blade | 22,011 kg (48,526 lb) |
| Operating Weight — Tier 3/Stage IIIA equivalent, straight blade | 21,721 kg (47,887 lb) |
| Total Operating Weight — coal blade fitted | 22,678 kg (49,996 lb) |
| Straight Blade Weight | 1,396 kg (3,000 lb) |
| Coal Blade Weight | 2,062 kg (4,429 lb) |
| Configuration note | Current 814 is offered as a single wheel-dozer configuration (no separate Std/XL/LGP lineup); operating weight varies mainly by emissions option and blade type fitted |
Dimensions
| Height to Top of Beacon | 3,981 mm (13.1 ft) |
| Height to Top of Cab Roof | 3,694 mm (12.1 ft) |
| Height to Top of Exhaust Pipe | 3,442 mm (11.3 ft) |
| Height to Top of Hood | 2,663 mm (8.7 ft) |
| Height to Top of Radiator Guard | 2,453 mm (8.0 ft) |
| Ground Clearance to Hitch | 413 mm (1.4 ft) |
| Ground Clearance to Transmission Guard | 422 mm (1.4 ft) |
| Ground Clearance to Bottom of Bumper | 712 mm (2.3 ft) |
| Centerline of Rear Axle to Bumper | 1,990 mm (6.5 ft) |
| Centerline of Front Axle to Hitch | 1,675 mm (5.5 ft) |
| Wheelbase | 3,350 mm (11.0 ft) |
| Width Over Platform | 3,145 mm (10.3 ft) |
| Overall Length to Front of Tire | 6,356 mm (21.0 ft) |
| Overall Machine Length — Straight Blade | 7,190 mm (23.6 ft) |
| Overall Machine Length — Coal Blade | 7,784 mm (25.5 ft) |
| Blade Overall Width — Straight | 3,656 mm (12.0 ft) |
| Blade Overall Width — Coal | 4,321 mm (14.2 ft) |
| Total Steering Angle | 72° |
| Rear Axle Oscillation Angle | ±10° (front axle fixed, rear axle oscillating planetary) |
Performance
| Forward 1 | 5.9 km/h (3.7 mph) |
| Forward 2 | 10.4 km/h (6.5 mph) |
| Forward 3 | 18.1 km/h (11.2 mph) |
| Forward 4 | 31.3 km/h (19.4 mph) |
| Reverse 1 | 6.7 km/h (4.2 mph) |
| Reverse 2 | 11.8 km/h (7.3 mph) |
| Reverse 3 | 20.6 km/h (12.8 mph) |
| Reverse 4 | 35.5 km/h (22.1 mph) |
| Transmission Type | Cat planetary powershift, 4 forward / 4 reverse speed range control with torque converter |
| Steering System | Pilot operated, load sensing, variable displacement piston pump; max flow 147 L/min (38.8 gal/min) at 2,200 rpm; relief valve setting 27,600 kPa (4,003 psi) |
| Steering Cycle Time — high idle | 3.0 seconds |
| Steering Cycle Time — low idle | 8.2 seconds |
| Lift/Tilt Hydraulic Flow | 89 L/min (23.5 gal/min) at 2,200 rpm; relief valve setting 22,000 kPa (3,190 psi) |
| Service Brakes | Single disc, wet, enclosed, on all four wheels |
| Parking Brake | Drum and shoe, spring applied, hydraulically released (electro-hydraulic) |
| Drawbar Pull / Gradeability / Ground Pressure | Not published in current factory literature for this wheel-dozer configuration — verify with your dealer if these figures are required |
Blades
| Straight Blade — Capacity | 2.84 m³ (3.72 yd³) |
| Straight Blade — Width x Height | 3,656 mm x 1,001 mm (12.0 ft x 3.3 ft) |
| Straight Blade — Digging Depth / Ground Clearance / Max Tilt | 493 mm / 904 mm / 802 mm (1.6 ft / 3.0 ft / 2.6 ft) |
| Straight Blade — Turning Radius, Outside / Inside Corner | 7,166 mm / 3,550 mm (23.5 ft / 11.6 ft) |
| Straight Blade — Weight / Total Operating Weight | 1,396 kg / 22,011 kg (3,000 lb / 48,526 lb) |
| Coal Blade — Capacity | 10.55 m³ (13.8 yd³) |
| Coal Blade — Width x Height | 4,321 mm x 1,470 mm (14.2 ft x 4.8 ft) |
| Coal Blade — Digging Depth / Ground Clearance / Max Tilt | 488 mm / 932 mm / 945 mm (1.6 ft / 3.1 ft / 3.1 ft) |
| Coal Blade — Turning Radius, Outside / Inside Corner | 7,647 mm / 3,420 mm (25.1 ft / 11.2 ft) |
| Coal Blade — Weight / Total Operating Weight | 2,062 kg / 22,678 kg (4,429 lb / 49,996 lb) |
| Blade options note | Straight and coal blades are the two factory blade types offered on this model; no SU/A/VPAT variant is catalogued for the 814 |
Service Capacities
| Fuel Tank | 500 L (132.1 gal) |
| Diesel Exhaust Fluid Tank | 16 L (4.2 gal) |
| Cooling System — Tier 4 Final/Stage V | 81 L (21.4 gal) |
| Cooling System — Tier 3/Stage IIIA equivalent | 73 L (19.3 gal) |
| Engine Crankcase | 20 L (5.3 gal) |
| Transmission | 50 L (13.2 gal) |
| Front Differential and Final Drives | 65 L (17.2 gal) |
| Rear Differential and Final Drives | 65 L (17.2 gal) |
| Hydraulic System — Implement/Steering, Total | 129 L (34.1 gal) |
| Hydraulic Tank Only | 75 L (19.8 gal) |
| Fuel Specification | Ultra low sulfur diesel; blends up to 20% biodiesel FAME accepted, up to 100% renewable diesel (HVO) or GTL fuels per engine configuration |
| Engine Oil Specification | Cat DEO-ULS or oils meeting Cat ECF-3, API CJ-4, API CK-4, and/or ACEA E9; 500-hour crankcase interval with CJ-4 oil |
| Coolant Specification | Ethylene glycol based; Cat Diesel Engine Antifreeze/Coolant (DEAC) or Cat Extended Life Coolant (ELC) |
| Hydraulic Oil Specification | Cat Bio HYDO Advanced biodegradable hydraulic oil available as a factory option |
| Air Conditioning Refrigerant | R134a (1.9 kg / 3.1 lb charge) or R1234yf, depending on configuration |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
814 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) — Cat C7.1 | 20 L (5.3 US gal) | Cat DEO-ULS, or an oil meeting Cat ECF-3, API CJ-4, ACEA E9. Multigrade Cat diesel engine oil selected by ambient-temperature band per the standard Cat DEO viscosity chart; exact chart cutoffs for this engine not confirmed from primary source text — verify grade selection with the OMM or dealer for your climate. |
| Cooling system | 73 L (19.3 US gal) on Tier 3 / Stage IIIA engine rating; 81 L (21.4 US gal) on Tier 4 Final / Stage V engine rating | Cat ELC (Extended Life Coolant), premixed or concentrate to the coolant/water ratio specified for the ambient range; maintain with Cat Extender at scheduled intervals instead of full ELC change-out. |
| Fuel tank | 500 L (132.1 US gal) | ULS diesel fuel meeting Cat fuel specification; biodiesel blends limited per Cat guidance for this engine family. |
| Diesel exhaust fluid (DEF) tank — Tier 4 Final / Stage V engine rating only | 15.9 L (4.2 US gal) | DEF meeting ISO 22241 / API certification. |
| Transmission — Cat planetary powershift | 50 L (13.2 US gal) | Cat TDTO (Transmission/Drive Train Oil) or TDTO-TMS synthetic, viscosity grade selected by ambient temperature (SAE 10W/30/50 band). This wheel dozer has no separate bevel-gear/steering-compartment fluid split in the published refill chart — steering is hydraulic/articulated, not mechanical bevel-gear, so only a single transmission capacity is listed. |
| Final drives — front axle (differential and final drive combined) | 65.1 L (17.2 US gal) | Cat TDTO, matched to the transmission fill grade. |
| Final drives — rear axle (differential and final drive combined) | 65.1 L (17.2 US gal) | Cat TDTO, matched to the transmission fill grade. |
| Hydraulic system — implement/steering circuit, total system fill (tank, lines, cylinders) | 129.1 L (34.1 US gal) | Cat HYDO Advanced, an anti-wear hydraulic oil with rust/corrosion protection and rapid air release; factory fill on this platform. |
| Hydraulic tank only | 74.9 L (19.8 US gal) | Cat HYDO Advanced, same fluid as full hydraulic system fill. |
| Pivot shaft / articulation hitch and steering points | Grease point, no separate fluid reservoir — no dedicated capacity published | Cat multipurpose grease (NLGI 2), or Cat Advanced 3Moly Grease where extended-interval greasing is specified. Grouped grease points cover steering hitch, articulation, and rear-axle trunnions for quick service access. |
| Grease — general chassis/pin points | Not applicable (grease gun service, no bulk capacity) | Cat multipurpose grease (Cat MPGM), NLGI 2 grade; Cat Advanced 3Moly Grease as the extended-life alternative at high-load pin joints. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 814 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 |
|
| Every 6,000 h |
|
Servicing the 814 beyond the schedule
Predictive Maintenance & Fluid Analysis
Run S·O·S sampling on the C7.1 engine oil, powershift transmission/torque converter oil, front and rear axle differential oil, and hydraulic tank oil at each planned interval. Trend wear metals in the axle housings, since the 12-degree oscillating rear axle and articulation hitch load the differential and trunnion bearings unevenly. Watch torque converter oil temperature and APECS shift behavior for early clutch-pack wear signs before a shift-quality complaint turns into a transmission teardown.
Corrective & Common Repairs
Expect blade cutting edge and end bit wear from coal and spoil dozing, especially on the higher-capacity coal blade. Articulation hitch pins, steering cylinder pins, and rear axle trunnion bushings loosen when grease intervals slip, showing up as play in the steering. Oil-disc brakes and tires take the brunt of grade work and rock or coal loading, so check brake wear indicators and tire cuts on schedule. Fuel filters clog faster on dusty mine and landfill sites.
Overhaul & Rebuild Points
Major driveline work centers on the planetary powershift transmission and torque converter clutch packs, plus the front and rear axle differentials and final drives feeding the oscillating rear axle. C7.1 overhaul points include the turbocharger, injectors, and valve lash adjustment at extended-hour milestones. Steering and lift/tilt cylinders need periodic reseal, and the box-section rear frame and blade push arms warrant crack inspection once the machine accumulates several thousand hours in mining or quarry duty.
Seasonal & Environment Servicing
In cold climates, fit the block heater, confirm ether-start operation, and switch to cold-weather engine oil and coolant grades before winter shutdown. In hot, dusty coal or quarry sites, shorten air filter and cab pressurizer filter intervals and clean the radiator, hydraulic cooler, and A/C condenser more often to fight coal-dust loading. On wet or muddy reclamation sites, check axle breathers and hitch/trunnion seals for water intrusion after every wash-down.
814 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 1P-2299 | Filter As-Fuel | Fuel system service | Check fitment → |
| 5S-9665 | Fuel Filter | Fuel system service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
814 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| SPN 110/FMI 0 | Engine coolant temperature above normal operating range | Low coolant level, blocked radiator core, failed fan drive/fan clutch, or faulty coolant temperature sensor | Check coolant level and radiator for debris, verify fan operation, then check sensor wiring before replacing the sensor |
| SPN 111/FMI 1 | Engine coolant level below minimum threshold | External coolant leak at hose, radiator or water pump, or a failed level sensor/loose connector | Inspect for visible leaks, top off coolant to spec, check sensor connector and float operation |
| SPN 100/FMI 1 | Engine oil pressure below normal for current speed and load | Low oil level, clogged oil filter, worn oil pump, or failed oil pressure sensor | Stop engine, check oil level and filter condition, verify sensor wiring, then check pump pressure before returning to service |
| SPN 168/FMI 1 | Electrical system (battery/ECM supply) voltage below normal | Weak or discharged battery, corroded terminals or ground straps, or failing alternator | Test battery state of charge, clean and tighten terminals and grounds, check alternator output |
| SPN 190/FMI 0 | Engine speed exceeded the calibrated maximum limit | Downhill or loaded coast without engine braking, torque converter/transmission control fault, or faulty engine speed/timing sensor | Review the operating conditions that led to the event, check transmission control response, inspect speed/timing sensor signal |
| SPN 3226/FMI 1 | Diesel exhaust fluid (DEF) level below the low-level threshold | DEF tank not topped off, failed DEF level sender, or DEF tank heater/sender circuit fault | Refill with correct-spec DEF, verify sender connector, confirm code clears after refill |
| SPN 3364/FMI 2 | Diesel particulate filter soot-load reading erratic or inconsistent with expected regeneration behavior | Incomplete or repeatedly interrupted regeneration cycles, plugged differential pressure sensor lines, or excessive idle duty cycle | Allow a full parked/stationary regeneration to complete, check DPF pressure sensor lines for blockage, review duty cycle |
| SPN 5246/FMI 0 or 15 | SCR/DEF system dosing or quality fault severe enough to trigger a performance derate warning | Contaminated or incorrect DEF, DEF dosing/injector fault, or NOx sensor issue | Drain and refill with correct DEF, check dosing system for leaks or clogs, clear the code with Cat ET after correction |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
814 attachments & work tools
Blades
Two blade options for the 814: Straight (S) blade rated 2.85 m³ (3.72 yd³), 3.7 m (12 ft) wide, 1.0 m (3.3 ft) tall, about 1,360 kg (3,000 lb); and Coal blade rated 10.55 m³ (13.8 yd³), 4.3 m (14.2 ft) wide, 1.5 m (4.8 ft) tall, about 2,010 kg (4,429 lb). No SU, U, or VPAT blade is cataloged for this wheel-dozer platform - those designations belong to the D-series crawler dozer line, not the wheel dozer family. Max tilt is roughly 0.8 m (2.6 ft) on the straight blade and 0.9 m (3.1 ft) on the coal blade, with about 0.5 m (1.6 ft) dig depth on either.
Rippers
No factory rear ripper is offered for the 814. Single- or multi-shank rippers are a track-type tractor (D-series) fitment; this wheel dozer's rear frame and hydraulics carry no ripper linkage or lift provision. Ripping/scarifying duty in this class is normally handled by the blade cutting edge or by a separate ripping machine, not an attachment on the 814 itself.
Winches
No factory winch option is documented for the 814. Cable/hydraulic winches are cataloged for larger track-type tractors used in logging and pipeline pulling, not for wheel dozers of this class - the 814's rear end is built around a towing drawbar, not a winch mount. Confirm with a dealer if a winch has ever been fitted to this chassis; it is not a listed factory arrangement.
Drawbars/counterweights
A rear drawbar hitch with pin is standard equipment, sized for towing loads rather than winch line pull. Drawbar pull capability is in the range of roughly 150 kN (34,600 lbf) class, varying with tire and ballast setup. A front counterweight is available as a factory option, used mainly to rebalance the machine when running the heavier, wider coal blade.
Cab/ROPS guarding for forestry/waste configs
The cab sits on an internal four-post ROPS/FOPS structure, sound-suppressed and pressurized with filtered air, plus a rear camera and panoramic mirror for site visibility. Standard guarding covers the crankcase/belly, powertrain, and driveshaft; a Waste Handling Arrangement adds radiator, engine-compartment, and tilt-cylinder-line guards along with extra cab-air filtration for debris-heavy landfill/waste sites. No dedicated forestry canopy or screen guarding package is documented for this wheel-dozer platform - that configuration is far more common on track-type dozers; verify site-specific screen kits with a dealer.
Hydraulic arrangement (front/rear tools)
Blade lift and tilt draw off a variable-displacement piston pump flowing about 89 L/min (23.5 gpm) at 2,200 rpm, run electro-hydraulically from the cab; steering uses a separate circuit at roughly 147 L/min (38.8 gpm), also at 2,200 rpm. All implement hydraulic capacity is committed to the front-mounted blade - there is no rear-tool circuit, since the machine has no rear ripper or winch provision. The rear drawbar connection is a mechanical hitch only, not hydraulically actuated.
All 814 assemblies by section
Every catalogued assembly group for the Caterpillar 814. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Central Structure
2p6202 Camshaft Group
| 2P***02 | Camshaft Group-Single; Single Camshaft Group | 1 |
5s6429 Connecting Rod And Piston Group--6 Required
| 5S***29 | Connecting Rod And Piston; Connecting Rod And Piston Group | 1 |
6a6611 Cylinder Block Cover Group
| 6A***11 | Cover Group-Cylinder Block; Cylinder Block Cover Group | 1 |
5c203 Cylinder Block Cover Group
| 5C***03 | Cover Group-Cylinder Block; Cylinder Block Cover Group | 1 |
4n7693 Crankshaft Assembly -- Field Installation
| 4N***93 | Crankshaft As | 1 |
9s3057 Crankshaft Assembly--Field Installation
| 9S***57 | Crankshaft Assembly | 1 |
Crankshaft Bearing And Thrust Plate Replacement Groups
| 4S***81 | Bearing (.010 In. Undersize); Bearing (0.25 mm Undersize) | 7 |
| 4S***83 | Bearing (.020 Undersize); Bearing (.020 Undersize) | 7 |
| 4S***85 | Bearing (.030 In. Undersize); Bearing (0.76 mm Undersize) | 7 |
5c3833 Crankshaft Group
| 5C***33 | Crankshaft Group; Crankshaft Group | 1 |
2p6220 Crankshaft Group
| 2P***20 | Crankshaft Group | 1 |
2p7307 Crankshaft Seal Group
| 2P***07 | Crankshaft Seal Group | 1 |
6a6670 Cylinder Block Assembly
| 6A***70 | Cylinder Block As | 1 |
6a7804 Cylinder Block Cover Group
| 6A***04 | Cylinder Block Cover Group | 1 |
5c1517 Cylinder Block Cover Group
| 5C***17 | Cylinder Block Cover Group | 1 |
6a6612 Cylinder Block Cover Group
| 6A***12 | Cylinder Block Cover Group | 1 |
6a6613 Cylinder Block Cover Group
| 6A***13 | Cylinder Block Cover Group | 1 |
6a3831 Cylinder Block Group
| 6A***31 | Cylinder Block Group; Cylinder Block Group | 1 |
4n4028 Connecting Rod And Piston Group--6 Required
| 4N***28 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
9s8912 Connecting Rod And Piston Group--6 Required
| 9S***12 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
2p6223 Crankshaft Seal Group
| 2P***23 | Seal Group-Crankshaft; Crankshaft Seal Group | 1 |
2p6225 Crankshaft Seal Group
| 2P***25 | Seal Group-Crankshaft; Crankshaft Seal Group | 1 |
Cooling System
2p6215 Engine Oil Cooler Group
| 2P***15 | Cooler Group-Engine Oil; Oil Cooler Group Engine | 1 |
2p6510 Transmission Oil Cooler Group
| 2P***10 | Cooler Group-Transmission Oil; Transmission Oil Cooler Group | 1 |
2p6515 Transmission Oil Cooler Group
| 2P***15 | Cooler Group-Transmission Oil; Transmission Oil Cooler Group | 1 |
2p6508 Transmission Oil Cooler Group
| 2P***08 | Cooler Group-Transmission Oil; Transmission Oil Cooler Group | 1 |
2p8174 Housing And Regulator Group
| 2P***74 | Housing & Regulator Group; Housing And Regulator Group | 1 |
3n3271 Housing And Regulator Group
| 3N***71 | Housing & Regulator Group; Housing And Regulator Group | 1 |
2p8173 Housing And Regulator Group
| 2P***73 | Housing & Regulator Group; Regulator And Housing Group | 1 |
2p8175 Housing And Regulator Group
| 2P***75 | Housing & Regulator Group; Regulator And Housing Group | 1 |
2p8171 Housing And Regulator Group
| 2P***71 | Housing & Regulator Group; Housing And Regulator Group | 1 |
2p7741 Water Lines Group--Pipe
| 2P***41 | Lines Group-Water; Water Lines Group-- Pipe | 1 |
2p6188 Water Lines Group
| 2P***88 | Lines Group-Water; Water Lines Group | 1 |
2p7740 Water Lines Group--Elbow
| 2P***40 | Lines Group-Water; Water Lines Group--Elbow | 1 |
2p661 Water Pump Group
| 2P***61 | Pump Group-Water; Water Pump Group | 1 |
2p662 Water Pump Group
| 2P***62 | Pump Group-Water; Water Pump Group | 1 |
Front Structure
2p6529 Front Housing Cover Group--Timing Gear
| 2P***29 | Cover Group-Front Housing; Front Housing Cover Group | 1 |
4n5162 Front Housing Cover Group--Timing Gear
| 4N***62 | Cover Group-Front Housing; Front Housing Cover Group | 1 |
2p6528 Front Housing Cover Group--Timing Gear
| 2P***28 | Cover Group-Front Housing; Front Housing Cover Group | 1 |
2p7838 Damper Group
| 2P***38 | Damper Group; Damper Group | 1 |
2p2503 Damper Group
| 2P***03 | Damper Group-Pulley & Cshft; Crankshaft And Pulley Damper Group | 1 |
4n8537 Fan Drive Group
| 4N***37 | Drive Group-Fan; Fan Drive Group | 1 |
2p7831 Fan Drive Group
| 2P***31 | Drive Group-Fan; Fan Drive Group | 1 |
2p7744 Support Group--Front And Rear
| 2P***44 | Engine Support Group | 1 |
4n3506 Support Group--Front
| 4N***06 | Engine Support Group | 1 |
2p6498 Front Housing Fastener Group
| 2P***98 | Fastener Group-Front Housing; Front Housing Fastener Group | 1 |
2p6498 Front Housing Fastener Group--Timing Gear
| 2P***98 | Fastener Group-Front Housing; Front Housing Fastener Group | 1 |
2p6211 Front Gear Group--Timing
| 2P***11 | Front Gear Group; Front Gear Group-Timing | 1 |
2p6153 Front Housing Group--Timing Gear
| 2P***53 | Front Housing; Front Housing Group | 1 |
2p9642 Front Gear Group--Timing
| 2P***42 | Gear Group-Front Timing | 1 |
2p9641 Front Housing Group--Timing Gear
| 2P***41 | Housing Group-Front; Front Housing Group | 1 |
6a6605 Pulley Group
| 6A***05 | Pulley Group | 1 |
2p8213 Pulley Group
| 2P***13 | Pulley Group; Pulley Group (Crankshaft & Fan Drive) | 1 |
6a6607 Pulley Group
| 6A***07 | Pulley Group | 1 |
2p8158 Pulley Group
| 2P***58 | Pulley Group; Fan Drive Pulley Group | 1 |
4n3879 Pulley Group
| 4N***79 | Pulley Group | 1 |
6a6606 Pulley Group
| 6A***06 | Pulley Group | 1 |
2p8601 Pulley Group
| 2P***01 | Pulley Group-Belt | 1 |
4n3562 Pulley Group
| 4N***62 | Pulley Group-Crankshaft; Crankshaft Pulley Group | 1 |
2p7753 Support Group--Front
| 2P***53 | Support Group-Engine; Front Engine Support Group | 1 |
2p6246 Trunnion Group
Fuel System And Governor
9n867 Fuel Ratio Control Group
| 9N***67 | Control Group-Fuel Ratio | 1 |
4n9240 Torque Control Group
| 4N***40 | Control Group-Torque | 1 |
6n3630 Torque Control Group
| 6N***30 | Control Group-Torque | 1 |
6n3609 Torque Control Group
| 6N***09 | Control Group-Torque | 1 |
4n4510 Governor Cover Group
| 4N***10 | Cover Group-Governor; Governor Cover Group | 1 |
4n7249 Tachometer Drive Group
| 4N***49 | Drive Group-Tachometer | 1 |
1p2299 Fuel Filter Assembly
| 1P***99 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
4n9882 Fuel Filter Group
| 4N***82 | Filter Group-Fuel; Fuel Filter Group | 1 |
1p6835 Primary Fuel Filter Group
| 1P***35 | Filter Group-Primary Fuel; Primary Fuel Filter Group | 1 |
5s9665 Fuel Filter Group
| 5S***65 | Fuel Filter | 1 |
8s9311 Fuel Filter Group
| 8S***11 | Fuel Filter Group | 1 |
4n3599 Fuel Filter Group
| 4N***99 | Fuel Filter Group | 1 |
5s9666 Fuel Filter Group
| 5S***66 | Fuel Filter Group | 1 |
2p7457 Fuel Injection Lines Group
| 2P***57 | Fuel Injection Lines | 1 |
2p7456 Fuel Injection Lines Group
| 2P***56 | Fuel Injection Lines | 1 |
2p7459 Fuel Injection Lines Group
| 2P***59 | Fuel Injection Lines | 1 |
4n8007 Fuel Injection Lines Group
| 4N***07 | Fuel Injection Lines | 1 |
4n3649 Fuel Injection Lines Group
| 4N***49 | Fuel Injection Lines Group | 1 |
5c3190 Fuel Injection Lines Group
| 5C***90 | Fuel Injection Lines Group | 1 |
2p7709 Fuel Priming Pump Group
| 2P***09 | Fuel Priming Pump | 1 |
7s1251 Fuel Priming Pump Group
| 7S***51 | Fuel Priming Pump Group | 1 |
7s9337 Governor And Fuel Injection Pump Group
| 7S***37 | Fuel Pump Housing And Governor | 1 |
5s9075 Governor And Fuel Injection Pump Group
| 5S***75 | Fuel Pump Housing And Governor | 1 |
5s9571 Governor And Fuel Injection Pump Group
| 5S***71 | Fuel Pump Housing And Governor | 1 |
5s9076 Fuel Pump Housing Group
| 5S***76 | Fuel Pump Housing Group | 1 |
4n4900 Fuel Ratio Control
| 4N***00 | Fuel Ratio Control Group | 1 |
7s4430 Fuel Transfer Pump Group
7s5445 Fuel Transfer Pump Group (7s5108 N/S)
| 7S***45 | Fuel Transfer Pump Group | 1 |
4n4873 Fuel Transfer Pump Group (7s5108 N/S)
| 4N***73 | Fuel Transfer Pump Group | 1 |
5s8501 Glow Plug Group
| 5S***01 | Glow Plug Group; Glow Plug And Wiring Group | 1 |
6n7603 Governor And Fuel Injection Pump Group
| 6N***03 | Gov & Fuel Inj Pump Group | 1 |
6n5355 Governor And Fuel Injection Pump Group--Part 1 Of 4
| 6N***55 | Gov & Fuel Inj Pump Group | 1 |
4n1836 Governor And Fuel Injection Pump Group--Part 1 Of 4
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
6n3472 Governor And Fuel Injection Pump Group--Type 1
| 6N***72 | Gov & Fuel Inj Pump Group | 1 |
6n2840 Governor And Fuel Injection Pump Group
| 6N***40 | Gov & Fuel Inj Pump Group; Governor & Fuel Injection Pump Group | 1 |
6n3472 Governor And Fuel Injection Pump Group
| 6N***72 | Gov & Fuel Inj Pump Group | 1 |
6n294 Governor And Fuel Injection Pump Group
| 6N***94 | Gov & Fuel Inj Pump Group; Governor And Fuel Injection Pump Group | 1 |
6n5355 Governor And Fuel Injection Pump Group--Part 4 Of 4
| 6N***55 | Gov & Fuel Inj Pump Group | 1 |
6n5355 Governor And Fuel Injection Pump Group--Part 2 Of 4
| 6N***55 | Gov & Fuel Inj Pump Group | 1 |
6n261 Governor And Fuel Injection Pump Group
| 6N***61 | Gov & Fuel Inj Pump Group | 1 |
6n5355 Governor And Fuel Injection Pump Group--Part 3 Of 4
| 6N***55 | Gov & Fuel Inj Pump Group | 1 |
6n7601 Governor And Fuel Injection Pump Group
| 6N***01 | Gov & Fuel Inj Pump Group; Governor And Fuel Injection Pump Group | 1 |
6n299 Governor And Fuel Injection Pump Group
| 6N***99 | Gov & Fuel Inj Pump Group; Governor And Fuel Injection Pump Group | 1 |
4n1836 Governor And Fuel Injection Pump Group--Part 2 Of 4
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
4n1836 Governor And Fuel Injection Pump Group--Part 4 Of 4
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
6n263 Governor And Fuel Injection Pump Group--Type 2
| 6N***63 | Gov & Fuel Inj Pump Group | 1 |
6n263 Governor And Fuel Injection Pump Group--Type 1
| 6N***63 | Gov & Fuel Inj Pump Group | 1 |
4n1836 Governor And Fuel Injection Pump Group--Part 3 Of 4
| 4N***36 | Gov & Fuel Inj Pump Group | 1 |
5c3189 Governor And Fuel Injection Pump Group--Type 1
| 5C***89 | Governor And Fuel Injection Pump Group | 1 |
6n308 Governor And Fuel Injection Pump Group
| 6N***08 | Governor And Fuel Injection Pump Group | 1 |
6n304 Governor And Fuel Injection Pump Group
| 6N***04 | Governor And Fuel Injection Pump Group | 1 |
6n1241 Governor And Fuel Injection Pump Group
| 6N***41 | Governor And Fuel Injection Pump Group | 1 |
6n298 Governor And Fuel Injection Pump Group
| 6N***98 | Governor And Fuel Injection Pump Group | 1 |
6n300 Governor And Fuel Injection Pump Group
| 6N***00 | Governor And Fuel Injection Pump Group; Governor And Fuel Injection Pump Group | 1 |
5c3189 Governor And Fuel Injection Pump Group--Type 3
| 5C***89 | Governor And Fuel Injection Pump Group | 1 |
5c3189 Governor And Fuel Injection Pump Group--Type 2
| 5C***89 | Governor And Fuel Injection Pump Group | 1 |
7s6740 Governor And Fuel Injection Pump Group
| 7S***40 | Governor And Fuel Injection Pump Group | 1 |
9s5740 Governor Group--Type 3
| 9S***40 | Governor Group | 1 |
7s9333 Governor Group--Part 2 Of 2--Type 3
| 7S***33 | Governor Group | 1 |
7s9332 Governor Group--Part 1 Of 2--Type 2
| 7S***32 | Governor Group | 1 |
7s9332 Governor Group--Part 2 Of 2--Type 1
| 7S***32 | Governor Group | 1 |
7s9332 Governor Group--Part 1 Of 2--Type 1
| 7S***32 | Governor Group | 1 |
7s9333 Governor Group--Type 1
| 7S***33 | Governor Group | 1 |
9s5740 Governor Group--Type 1
| 9S***40 | Governor Group | 1 |
7s9333 Governor Group--Part 1 Of 2--Type 3
| 7S***33 | Governor Group | 1 |
7s9332 Governor Group--Part 2 Of 2--Type 2
| 7S***32 | Governor Group | 1 |
7s9333 Governor Group--Type 2
| 7S***33 | Governor Group | 1 |
9s5740 Governor Group--Type 2
| 9S***40 | Governor Group | 1 |
9s9028 Torque Control Group
| 9S***28 | Governor Torque Spring | 1 |
4n3650 Torque Control Group
| 4N***50 | Governor Torque Spring | 1 |
8s5042 Torque Control Group
| 8S***42 | Governor Torque Spring | 1 |
9s9345 Governor Torque Spring Group
| 9S***45 | Governor Torque Spring Group | 1 |
8l8682 Governor Torque Spring Group
| 8L***82 | Governor Torque Spring Group | 1 |
4n8054 Fuel Injection Lines Group
| 4N***54 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
2p8916 Fuel Injection Lines Group
| 2P***16 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
4n3336 Service Meter Group
| 4N***36 | Meter Group-Service; Service Meter Group | 1 |
9s8912 Service Meter Group
| 9S***12 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
9h2256 Pump Assembly
| 9H***56 | Pump Assembly | 1 |
4n4314 Fuel Priming Pump Group
| 4N***14 | Pump Group-Fuel Priming; Fuel Priming Pump Group | 1 |
4n9625 Fuel Priming Pump Group
| 4N***25 | Pump Group-Fuel Priming; Fuel Priming Pump Group | 1 |
4n3287 Fuel Priming Pump Group
| 4N***87 | Pump Group-Fuel Priming; Pump Group-Fuel Priming | 1 |
4n4864 Fuel Transfer Pump Group
| 4N***64 | Pump Group-Fuel Transfer | 1 |
4n4864 Fuel Transfer Pump Group--Type 2
| 4N***64 | Pump Group-Fuel Transfer | 1 |
7s4429 Fuel Transfer Pump Group
| 7S***29 | Pump Group-Fuel Transfer; Fuel Transfer Pump Group | 1 |
9s3312 Torque Control Group
| 9S***12 | Rack Stop Group | 1 |
8s3688 Service Meter Group
| 8S***88 | Service Meter; Service Meter Group | 1 |
9s5141 Service Meter Group
| 9S***41 | Service Meter | 1 |
9s7993 Service Meter Group
| 9S***93 | Service Meter | 1 |
9s7127 Service Meter Drive Group
| 9S***27 | Service Meter Drive | 1 |
4n3554 Service Meter Drive Group
| 4N***54 | Service Meter Drive Group | 1 |
4n8064 Service Meter Group
| 4N***64 | Service Meter Group | 1 |
4n4026 Service Meter Group
| 4N***26 | Service Meter Group; Service Meter Group | 1 |
9s7128 Service Meter Group
| 9S***28 | Service Meter Group | 1 |
4n4025 Service Meter Group
| 4N***25 | Service Meter Group | 1 |
1p6474 Torque Control Group
| 1P***74 | Torque Control | 1 |
6n581 Torque Control Group
| 6N***81 | Torque Control Group | 1 |
6n3610 Torque Control Group
| 6N***10 | Torque Control Group | 1 |
6n454 Torque Control Group
| 6N***54 | Torque Control Group | 1 |
6n509 Torque Control Group
| 6N***09 | Torque Control Group | 1 |
Gasket Kit
Gasket Kits
Intake And Exhaust System
2p7721 Accessory Drive Group
| 2P***21 | Accessory Drive Group | 1 |
2p7801 Air Compressor Group
| 2P***01 | Air Compressor Group; Air Compressor Group | 1 |
2p7800 Air Compressor Group
| 2P***00 | Air Compressor Group | 1 |
4n3616 Air Lines Group
| 4N***16 | Air Lines | 1 |
2p6849 Air Lines Group
| 2P***49 | Air Lines Group; Air Lines Group | 1 |
2p6847 Air Lines Group
| 2P***47 | Air Lines Group | 1 |
2p6846 Air Lines Group
| 2P***46 | Air Lines Group | 1 |
6n39 Air Lines Group
| 6N***39 | Air Lines Group | 1 |
5c4668 Air Lines Group
| 5C***68 | Air Lines Group | 1 |
6a9358 Air Lines Group
| 6A***58 | Air Lines Group | 1 |
2p7352 Exhaust Pipe Group
| 2P***52 | Exhaust Pipe Group | 1 |
4n9586 Exhaust Manifold Fastener Group
| 4N***86 | Fastener Group-Exhaust Manifold; Exhaust Manifold Fastener Group | 1 |
2p6534 Exhaust Manifold Fastener Group
| 2P***34 | Fastener Group-Exhaust Manifold; Exhaust Manifold Fastener Group | 1 |
6n158 Air Lines Group
| 6N***58 | Lines Group-Air; Air Lines Group | 1 |
4n9218 Air Lines Group
| 4N***18 | Lines Group-Air; Air Lines Group | 1 |
2p6841 Air Lines Group
| 2P***41 | Lines Group-Air; Air Lines Group | 1 |
2p7802 Air Compressor Lines Group
| 2P***02 | Lines Group-Air Compressor; Air Compressor Lines Group | 1 |
4n4625 Turbocharger Oil Lines Group
| 4N***25 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
4n3333 Turbocharger Oil Lines Group
| 4N***33 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
6n25 Turbocharger Oil Lines Group
| 6N***25 | Lines Group-Turbocharger Oil | 1 |
2p7315 Turbocharger Oil Lines Group
| 2P***15 | Lines Group-Turbocharger Oil | 1 |
6n443 Turbocharger Oil Lines Group
| 6N***43 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
2p6573 Exhaust Manifold Group
| 2P***73 | Manifold Group-Exhaust | 1 |
2p6572 Exhaust Manifold Group
| 2P***72 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
6n164 Exhaust Manifold Group
| 6N***64 | Manifold Group-Exhaust | 1 |
8s9234 Turbocharger Assembly (5s9584 N/S)
| 8S***34 | Turbocharger Assembly | 1 |
8s9237 Turbocharger Assembly (7s1701 N/S)
| 8S***37 | Turbocharger Assembly | 1 |
7s1701 Turbocharger Group
| 7S***01 | Turbocharger Group | 1 |
6n1571 Basic Turbocharger Group
| 6N***71 | Turbocharger Group | 1 |
4n9554 Turbocharger Group
| 4N***54 | Turbocharger Group | 1 |
4n8969 Turbocharger Group
| 4N***69 | Turbocharger Group | 1 |
5s9584 Turbocharger Group
| 5S***84 | Turbocharger Group | 1 |
4n9618 Turbocharger Group
| 4N***18 | Turbocharger Group | 1 |
4n9169 Turbocharger Group
| 4N***69 | Turbocharger Group; Turbocharger Group | 1 |
4n8970 Turbocharger Group
| 4N***70 | Turbocharger Group | 1 |
2p7316 Turbocharger Oil Lines Group
| 2P***16 | Turbocharger Oil Lines | 1 |
Lower Structure
2p6206 Oil Pan Fastener Group
| 2P***06 | Fastener Group-Oil Pan; Oil Pan Fastener Group | 1 |
2p6200 Oil Pan Fastener Group
| 2P***00 | Fastener Group-Oil Pan; Fastener Gp-Engine Oil Pan | 1 |
2p6199 Oil Pan Fastener Group
| 2P***99 | Fastener Group-Oil Pan; Oil Pan Fastener Group | 1 |
2p6174 Oil Pan Group
| 2P***74 | Pan Group-Oil; Oil Pan Group | 1 |
2p6152 Oil Pan Group
| 2P***52 | Pan Group-Oil; Oil Pan Group | 1 |
Lubrication System
1p4244 Breather Group
| 1P***44 | Breather Group | 1 |
4n5139 Oil Filler Group
| 4N***39 | Filler Group-Oil | 1 |
4n4791 Oil Filler Group
| 4N***91 | Filler Group-Oil; Oil Filler Group | 1 |
2p6855 Oil Filler Group
| 2P***55 | Filler Group-Oil | 1 |
4n4817 Oil Filler Group
| 4N***17 | Filler Group-Oil; Oil Filler Group | 1 |
2p6475 Oil Filter Group
| 2P***75 | Filter Group-Engine Oil; Oil Filter Group (10z1 ~ 10z7023) | 1 |
2p6525 Oil Filter Group
| 2P***25 | Filter Group-Oil | 1 |
6n4873 Fumes Disposal Group
| 6N***73 | Fumes Disposal Group; Fumes Disposal Group | 1 |
4n3325 Fumes Disposal Group
| 4N***25 | Fumes Disposal Group; Fumes Disposal Group | 1 |
2p7447 Fumes Disposal Group
| 2P***47 | Fumes Disposal Group | 1 |
6n4556 Oil Level Gauge Group
| 6N***56 | Gauge Group-Oil Level (Dipstick) | 1 |
2p6493 Oil Level Gauge Group
| 2P***93 | Gauge Group-Oil Level (Dipstick); -Engine | 1 |
2p9609 Oil Level Gauge Group
| 2P***09 | Gauge Group-Oil Level (Dipstick) | 1 |
2p6109 Oil Lines Group
| 2P***09 | Lines Group-Engine Oil; Engine Oil Lines Group | 1 |
2p6105 Oil Lines Group
| 2P***05 | Lines Group-Engine Oil; Engine Oil Lines Group | 1 |
4n5138 Oil Filler Group
| 4N***38 | Oil Filler Group | 1 |
2p1785 Gear Pump Group
| 2P***85 | Pump Group-Engine Oil | 1 |
2p1784 Oil Pump Group
| 2P***84 | Pump Group-Engine Oil; Engine Oil Pump Group | 1 |
Rear Structure
2p8161 Rear Gear Group
| 2P***61 | Drive Group-Accessory; Rear Gear Group-Accessory Drive | 1 |
2p8159 Rear Gear Group
| 2P***59 | Drive Group-Accessory; Rear Gear Group Accessory Drive | 1 |
7s7875 Flywheel Group
| 7S***75 | Flywheel Group; Flywheel Group | 1 |
7s7877 Flywheel Group
| 7S***77 | Flywheel Group; Flywheel Group | 1 |
7s7878 Flywheel Group
| 7S***78 | Flywheel Group; Flywheel Group | 1 |
2p2702 Flywheel Group
| 2P***02 | Flywheel Group; Flywheel Group | 1 |
7s5471 Flywheel Group
| 7S***71 | Flywheel Group; Flywheel Group | 1 |
2p1663 Flywheel Group
| 2P***63 | Flywheel Group; Flywheel Group | 1 |
7s7874 Flywheel Group
| 7S***74 | Flywheel Group; Flywheel Group | 1 |
7s7753 Flywheel Group
| 7S***53 | Flywheel Group; Flywheel Group | 1 |
2p6814 Flywheel Housing Group
| 2P***14 | Flywheel Housing Group | 1 |
2p6119 Flywheel Housing Group
| 2P***19 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
4n5825 Flywheel Housing Group
| 4N***25 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
2p6156 Flywheel Housing Group
| 2P***56 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
2p6131 Flywheel Housing Group
| 2P***31 | Housing Group-Flywheel; Flywheel Housing Group | 1 |
Upper Structure
2p6531 Cylinder Head Cover Group
| 2P***31 | Cover Group-Cylinder Head; Cylinder Head Cover Group | 1 |
2p6530 Cylinder Head Cover Group
| 2P***30 | Cover Group-Cylinder Head; Cylinder Head Cover Group | 1 |
2p6516 Valve Mechanism Cover Group
| 2P***16 | Cover Group-Valve Mechanism; Valve Mechanism Cover Group | 1 |
4n7446 Cylinder Head Assembly
| 4N***46 | Cylinder Head As; Head Assembly-- Parts Service | 1 |
5c707 Cylinder Head Fastener Group
| 5C***07 | Cylinder Head Fastener Group | 1 |
2p6476 Cylinder Head Group
| 2P***76 | Cylinder Head Group; Cylinder Head Group | 1 |
2p6486 Cylinder Head Group
| 2P***86 | Cylinder Head Group; Cylinder Head Group | 1 |
2p6546 Cylinder Head Fastener Group
| 2P***46 | Fastener Group-Cylinder Head; Cylinder Head Fastener Group | 1 |
1p3840 Lifting Eye Group
| 1P***40 | Lifting Group; Lifting Eye Group | 1 |
2p6526 Valve Mechanism Group
| 2P***26 | Valve-Mechanism Group; Valve Mechanism Group | 1 |
Vehicular Engine
Engine Arrangement
Engine Arrangements
814 serial number reference
The PIN/serial plate on an 814-family wheel dozer is mounted on the front frame, typically on the right-hand side near the base of the cab or along the frame rail below the operator's platform, visible from ground level. Pre-2001 machines show an 8-character serial number (3-character prefix plus 5-digit sequence) stamped directly; 2001-and-later machines carry a full 17-character PIN, with the same prefix-plus-sequence format embedded in the last 8 characters — read the first 3 characters of that trailing block as the model/plant prefix.
| Prefix | Identifies | Notes |
|---|---|---|
| 90P | 814 (original wheel dozer, early 1970 production) | Earliest 814 serial range, tractor/power-shift configuration. Runs roughly 90P1 and up. |
| 14R | 814 (original wheel dozer), 1971 onward | 14R00001-00149 covers the earliest run; 14R00150-and-up is documented as powered by the 3306 engine, marking an engine change partway through the range. Tractor/power-shift driveline. |
| 16Z | 814B wheel dozer | 16Z00001-and-up, tractor/power-shift configuration, powered by the 3306 engine. Production begins in the early 1980s. |
| BGF | 814F wheel dozer | BGF1-and-up, documented from 1999. Powered by the 3176C engine. Oscillating-axle wheel dozer chassis, no Std/XL/LGP track-dozer-style configuration options. |
| BXG | 814F Series 2 / 814F II wheel dozer | BXG00001-and-up. Powered by the C9 ACERT engine with electronic clutch-pressure control and a planetary powershift transmission, meeting Tier 3/Stage IIIA emissions. |
| WCM | 814K wheel dozer | WCM1-and-up, full-machine PIN range covering cab, chassis, electrical, and engine-compartment documentation for 2018-model-year build. Powered by the C7.1 ACERT engine (Tier 4 Final). |
| T1Z | 814K wheel dozer | T1Z1-and-up, a second full-machine 814K PIN range alongside WCM (also seen tied to 2018-model-year build documentation, including the DEF system). Confirm which prefix applies to a given unit with your dealer. |
| 11A | current-generation 814 wheel dozer | Cat's own model-code tag for the post-814K 814, used in official product-brochure and technical-specification document titles ('814 (11A)'). Carries a C7.1 engine rated 249 net hp, offered in Tier 4 Final/Stage V or Tier 3/Stage IIIA-equivalent tune. Not verified against an actual PIN plate, so confirm the literal serial prefix with your dealer. |
Frequently asked questions
What engine powers the Cat 814 wheel dozer?
The current-production Cat 814 uses the Cat C7.1 diesel, rated at roughly 249 hp (186 kW) net and 284 hp gross, built in Tier 4 Final/Stage V emissions trim or a MAR-1/Tier 3-equivalent variant for non-regulated markets.
What is the operating weight of the Cat 814?
Operating weight runs around 22,000 kg (48,500 lb), varying with the blade fitted -- the straight blade and the larger coal blade configuration each shift the figure slightly.
What did the Cat 814 replace, and has the model number been reused?
The current 814 (2021-present) succeeded the 814K (2018-2021). Caterpillar has reused the '814' designation since the 1970s across the original 814/814B, the 814F/814F II, the 814K, and today's 814, so each generation carries a different engine family.
What 814 owners discuss
How does the Cat 814 ride and handle compared to a track-type dozer?
Operators consistently note wheel dozers ride rougher over uneven ground and are harder to hold precise grade with than crawler dozers, since blade control comes through tire flex and steering-axle articulation rather than a track's contact patch. The tradeoff is speed and mobility: the 814 relocates between work areas on its own tires without a low-bed, and it pushes well on firm, dry surfaces but loses traction fast in mud or soft going compared to a track machine. Typical work is sweeping and dragging haul roads, cleaning up around shovels and loaders, pushing scrapers on cut-to-fill jobs, and stockpile work rather than heavy ripping or fine finish grading.
What tire and rim wear patterns should 814 owners watch for?
Because the 814 puts all its weight and pushing load through four tires, uneven wear is one of the first things owners check. Cupping or wear that's heavier on one side points to alignment, toe, or steering-cylinder issues rather than a tire defect. Rock and demolition sites chew tread and sidewalls quickly, so many owners move to heavy L-tread, cut-resistant rock tires once stock traction tread starts getting punctured. Rims get checked for bends and cracks at the same interval as tire changes, since a bent rim keeps re-wearing a replacement tire the same way the old one wore.
Is the center articulation joint a wear point on the 814?
The center-hitch/articulation joint that lets the frame steer is a routine daily grease point and a common source of slop when greasing gets skipped. The same pin-and-bushing logic applies here as any loaded pivot: a missed lubrication interval lets the pin wear one side of the bushing, and once play develops in the hitch it shows up as looseness in steering response and can accelerate wear elsewhere in the steering linkage. Greasing on the OEM interval, not just when the joint starts to squeak or clunk, is the recurring advice from people running these machines daily.
What are the known quirks of the C7.1 engine's emissions system on the current 814?
The 814's C7.1 uses a passive regeneration strategy for Tier 4 Final/Stage V rather than the active burner system on Cat's larger engines, so the diesel particulate filter relies on exhaust heat and late post-injection to burn off soot instead of a dedicated igniter. Mechanics describe the aftertreatment as sensitive: any oil reaching the DPF or the emissions module, from a turbo seal leak or an overfill, fouls the filter in a way a normal regen cycle won't clear. Machines run at low load or with a lot of idle time tend to see incomplete regens and soot-related fault codes more often, so keeping duty cycle up and staying ahead of oil consumption is the practical fix operators report. Have your dealer verify aftertreatment condition before assuming a regen fault is just a sensor.
What electrical or sensor issues come up most on Tier 4 Final Cat machines like the 814?
As with other Tier 4 Final Cat engines, a failing NOx or DEF-quality sensor is a frequent root cause when the machine throws an emissions fault and starts a countdown toward a power derate, even though the DEF fluid and catalyst are actually fine. A telltale is a DEF-quality fault that keeps returning after a fluid change, which points at the sensor rather than the fluid itself; a misreading inlet sensor can also cause the system to overdose DEF. Scanning the actual fault code before swapping DEF or parts is the advice from people who've chased this issue. Have your dealer verify the fault code and sensor before replacing DEF fluid or components.
How should the powershift transmission be operated to avoid problems?
The 814 runs a planetary powershift transmission through a torque converter, and the common operating advice, consistent with other Cat powershift machines, is to work in the lowest gear that still gets the job done rather than lugging a heavy push in too high a gear, since that generates excess heat in the converter and shortens transmission life. Slow-to-engage or slipping clutch packs are more often traced to worn transmission pump flow or valve wear than to the clutch discs themselves. Staying on the correct transmission oil spec and filter interval is the most repeated maintenance point among owners. Have your dealer verify transmission pressures if shifts feel soft or delayed before assuming a clutch pack has failed.
What should a buyer check before purchasing a used 814?
Buyers look at the same fundamentals as any used dozer plus the wheel-specific items: even tread wear across all four tires (uneven wear signals alignment or steering-cylinder problems), rim condition free of bends or cracks, and play in the center articulation joint. On the engine side, a steady idle, gradual throttle response, and light, steady exhaust rather than heavy smoke are the go/no-go signs, and pulling service and regen history matters given the C7.1's passive-regen aftertreatment. Blade and hydraulic cycle times should stay consistent under load rather than gradually slowing, which would point to internal leaks or pump wear, and welds on the push frame and blade mounts get checked for extra reinforcement that would indicate a past structural repair. Have your dealer verify hour-meter accuracy, emissions system health, and any structural repairs with a full inspection before purchase.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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