Caterpillar 834G
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar 834G is a large four-wheel-drive articulated wheel dozer built for production dozing in mining, quarry, and heavy contracting work. It runs the Cat 3456 diesel, a Tier 2, electronic unit injection engine built on the 3406E platform, rated around 525 hp (392 kW) gross, with a flywheel/converter-drive net rating near 481 hp (359 kW) and a direct-drive net rating near 451 hp (336 kW). Operating weight runs roughly 103,800 to 106,800 lb (47.1 to 48.5 tonnes) depending on the blade fitted. Cat built the 834G from around the mid-1990s into the mid-2000s as the direct successor to the 834B. The power train is a four-speed-forward, three-speed-reverse electronically controlled planetary powershift transmission with an impeller-clutch torque converter and lock-up clutch, driving a fixed front axle and an oscillating rear axle through planetary final drives at each wheel. Cat offered it with a straight blade for production dozing, a universal blade for pushing large loads over distance in mining, or a coal blade for high-volume light-material work.
Across the 834 lineage, the engine and controls changed with almost every generation. The original 834 (1963-1974) ran a naturally aspirated engine rated around 400 hp; Cat revived the line in 1982 as the 834B with the 3408E V8 rated around 450 hp. The 834G moved to the inline-six 3456 with full electronic engine and transmission management (ADEM III) and Tier 2 emissions compliance. The 834H, introduced around 2005, switched to the C18 ACERT engine rated near 498 hp, and the 834K, released in 2013-2014, refined the C18 further with Tier 4 Final emissions options, a new cab, and an updated transmission. The 834G matters in today's used and parts market because it sits right before the aftertreatment era, with no diesel particulate filter or selective catalytic reduction system to maintain, while still delivering strong dozing power and a rebuildable planetary final drive and torque converter drive train. Buyers and parts sourcing need to keep it separate from the mechanically different 834B, 834H, and 834K, since engine, cooling, and electronic architecture differ across each generation even though the model numbering stayed close.
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 834G specifications
Engine
| Engine model | Cat 3456 diesel, 6-cylinder, turbocharged-aftercooled, direct injection (electronic unit injection) |
| Displacement | 15.8 L (964-966 cu in) |
| Bore x Stroke | 140 mm x 171 mm (5.5 in x 6.75-6.8 in) |
| Gross power | 392 kW (525 hp) |
| Net power (flywheel, converter-drive rating - applies to this machine) | 359 kW (481 hp) at 1,900 rpm |
| Net power (direct-drive engine rating, reference figure on same rating table) | 336 kW (451 hp) - alternate rating for direct-drive applications of this engine, not the drivetrain fitted to the 834G |
| Torque rise | approx. 49 percent - confirm the exact figure with your dealer for this serial range |
| Emissions | Tier 2 / equivalent non-road category for the build era - verify against the specific serial range with a dealer, as Tier 1/Tier 2 transition years can overlap |
Weights (by blade configuration)
| Operating weight - straight blade | 47,105-47,106 kg (103,849-103,851 lb) |
| Operating weight - universal blade | 48,464 kg (106,844 lb) |
| Operating weight - coal blade | 48,195 kg (106,252 lb) |
| Blade weight - straight | 3,196 kg (7,047 lb) |
| Blade weight - universal | 4,554-4,555 kg (10,042 lb) |
| Blade weight - coal | 4,286-4,290 kg (9,450 lb) |
Dimensions
| Length, blade on ground | 9,880-10,420 mm (32.4-34.2 ft) - varies by blade fitted, longer figure with the wider universal/coal blade |
| Width over tires | 3,470 mm (11.39 ft) |
| Height to top of cab (ROPS) | 4,090-4,100 mm (13.42-13.46 ft) |
| Wheelbase | 4,550 mm (14.93 ft) |
| Ground clearance (chassis) | 540 mm (1.78 ft) |
| Turning radius, straight blade | 8,899-9,000 mm (29.2 ft) |
| Maximum single-wheel rise/fall (rear axle oscillation travel) | 447-448 mm (17.6 in) |
| Configuration note | No Std/XL/LGP chassis variants - that naming applies to track-type dozers. The 834G is offered as a single wheeled chassis with a choice of blade (straight, universal, or coal) |
Performance
| Forward speeds (4-speed powershift, on 35/65-33 tires) | 1st 6.7 km/h (4.2-4.3 mph); 2nd 11.8 km/h (7.3-7.8 mph); 3rd 20.6 km/h (12.8-13.8 mph); 4th 35.8-35.9 km/h (22.3-24 mph) |
| Reverse speeds (3-speed) | 1st 7.0 km/h (4.4-4.5 mph); 2nd 12.3 km/h (7.7-8.1 mph); 3rd 21.6-21.7 km/h (13.4-14.3 mph) |
| Drawbar pull / rimpull | No single peak drawbar-pull figure is published for this model. Factory literature presents a rimpull-speed-gradeability curve (rimpull vs. ground speed vs. total resistance) across all forward and reverse gears rather than one rated number |
| Gradeability | Not published as a fixed percentage; read off the same rimpull-speed-gradeability curve and dependent on gear, load, and total resistance. No single-source maximum-grade figure was found |
| Ground pressure | Not a published spec for this machine. It rides on tires, not tracks, so ground loading is set by tire size, tread, and inflation rather than a fixed factory ground-pressure rating (unlike track-type dozers) |
| Hydraulic implement pump output | 188 L/min (49.7 gal/min) at 1,900 rpm |
Blades
| Straight blade - capacity | 7.9 m3 (10.33-10.4 yd3) |
| Straight blade - width x height | 5,074 mm x 1,461 mm (199.8 in x 57.5 in) |
| Straight blade - digging depth / max lift above ground | 557 mm (21.9 in) / 1,279 mm (50.4 in) |
| Universal blade - capacity | 11.13 m3 (14.56 yd3) |
| Universal blade - width x height | 5,151 mm x 1,461 mm (202.8 in x 57.5 in) |
| Universal blade - digging depth / max lift above ground | 557 mm (21.9 in) / 1,279 mm (50.4 in) |
| Coal blade - capacity | 22.2 m3 (29.0 yd3) |
| Coal blade - width x height | 5,677 mm x 1,956 mm (223.5 in x 77.0 in) |
| Coal blade - digging depth | 465 mm (18.3 in) |
| Blade tilt travel (all types) | straight/universal approx. 1,270 mm (50 in); coal approx. 1,482 mm (58.3 in) |
| Other blade types | Semi-universal (S/SU) and VPAT blade designations are not documented for this wheel dozer - those are track-type dozer offerings. The 834G lineup is straight, universal, or coal blade only |
Transmission, Steering, Brakes, Tires
| Transmission type | Electronically controlled Cat planetary powershift with perimeter-mounted, large-diameter clutch packs; impeller-clutch torque converter with lock-up capability |
| Gears | 4 forward, 3 reverse |
| Steering | Load-sensing hydraulic steering with single-lever electronic control (STIC), integrating steering and transmission direction/gear selection; meets SAE J1511 FEB94 / ISO 5010:1992 |
| Brakes | Full hydraulic, oil-cooled multiple-disc service brakes at the axle shafts; meets SAE/ISO 3450 |
| Axles | Front axle fixed; rear axle oscillating +/-13 degrees; heavy-duty differentials and final drives with permanently lubricated universal joints |
| Tire sizes offered | 35/65-33 (bias) or 35/65R33 (radial), L-4 or L-5 tread, as fitted at the factory |
Hydraulic System
| Pump type / output | Gear pump, 188 L/min (49.7 gal/min) at 1,900 rpm |
| Relief valve setting | 29,000 kPa (4,206 psi) |
| Lift cylinder (bore x stroke) | 140 mm x 1,021 mm (5.5 in x 40.2 in) |
| Steering cylinder (bore x stroke) | 114 mm x 740 mm (4.5 in x 29.1 in) |
| Tilt/tip cylinder, right side (bore x stroke) | 152 mm x 276 mm (6.0 in x 10.9 in) |
| Tilt/tip cylinder, left side (bore x stroke) | 140 mm x 276 mm (5.5 in x 10.9 in) |
Service capacities summary
| Fuel tank | 795-803 L (210-212.2 gal) |
| Cooling system | 94-95 L (25 gal) |
| Engine crankcase (oil and filter) | 60 L (15.9 gal) - Cat DEO or equivalent CH-4-category diesel engine oil |
| Transmission | 72 L (19 gal) - Cat TDTO or equivalent powershift transmission fluid |
| Hydraulic tank | 140 L (37 gal) - Cat HYDO or equivalent hydraulic oil |
| Differential and final drive, front | 186 L (49.1 gal) |
| Differential and final drive, rear | 186 L (49.1 gal) |
| Engine oil change interval reference | approx. 500 hours with a CH-4-category oil - follow the machine's own maintenance interval schedule |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
834G fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with oil filter) - Cat 3456 EUI diesel | 60.2 L (15.9 US gal) | Cat DEO or DEO-ULS diesel engine oil, API CI-4/CH-4, Cat ECF-1 spec. SAE 15W-40 for temperate climates; SAE 10W-30 down to about -20 C (-4 F); Cat multigrade synthetic (e.g. 0W-30/5W-40) for colder starts. Engine is Tier 2 rated (mechanical EUI injection, no aftertreatment). |
| Cooling system | 94.6 L (25.0 US gal) | Cat ELC (Extended Life Coolant/Antifreeze), premixed 50/50; Cat DEAC (Diesel Engine Antifreeze/Coolant) as the conventional alternative. Do not mix ELC and DEAC in the same system. |
| Fuel tank, standard | 795 L (210 US gal) | No. 2-D diesel fuel for normal ambient temperatures; switch to No. 1-D or a winter-blend diesel below about -7 C (20 F) to avoid fuel waxing/gelling. No optional high-capacity tank documented across sources checked. |
| Powershift transmission (impeller-clutch torque converter + powershift gearbox) | 71.9 L (19.0 US gal) | Cat TDTO (Transmission/Drive Train Oil), Cat TO-4 spec. SAE 30 for roughly 0 C to 35 C (32 F to 95 F) ambient; SAE 10W in cooler weather; Cat TDTO Cold Weather or TDTO-TMS multigrade where ambient swings widely through the season. |
| Front axle - bevel gear differential and final drives (combined housing) | 185.9 L (49.1 US gal) | Cat TDTO, Cat TO-4 spec, same viscosity selection by ambient temperature as the transmission. Front and rear axle housings share one sump each covering the bevel-gear differential and both final drives on that axle - not split into separate bevel-gear and final-drive fills. |
| Rear axle - bevel gear differential and final drives (combined housing) | 185.9 L (49.1 US gal) | Cat TDTO, Cat TO-4 spec, same viscosity selection by ambient temperature as the transmission and front axle. Front and rear capacities are equal on this machine. |
| Hydraulic system / tank (implement and steering circuits) | 140.1 L (37.0 US gal) | Cat HYDO Advanced 10/20/30 (or Cat Bio HYDO Advanced), selected by ambient temperature band, meeting Cat's hydraulic-oil wear and oxidation requirements. Some Cat wheel-dozer generations spec TDTO in this tank instead of a dedicated HYDO product - verify against the specific serial-range OMM before topping off with the wrong fluid family. |
| Frame articulation (hitch) pivot pins, upper and lower | Not an oil-fill point - lubricated through grease fittings at the articulation joint, no listed volume | Cat Multipurpose Grease, NLGI 2, lithium-complex base, general service range about -30 C to 40 C (-22 F to 104 F). Cat Advanced 3Moly (moly-fortified) grease for the high-load hitch pins under shock loading; Cat Arctic Platinum or Desert Duty grease in sustained extreme cold or heat. |
| Chassis grease points (pins, bushings, cylinder ends, driveline) | N/A - serviced via grease fittings on interval, not a reservoir fill | Cat Multipurpose Grease NLGI 2 for general chassis and linkage points. Step down to NLGI 1 or 0 in sustained sub-zero ambient temperatures for easier pumpability if the machine is fitted with a centralized/automatic lube system. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 834G maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 3,000 h |
|
| Every 6,000 h |
|
| Every 12,000 h |
|
Servicing the 834G beyond the schedule
Predictive Maintenance & Fluid Analysis
The 834G ships with S.O.S sampling valves on the 3456 engine, torque converter, transmission, hydraulic tank, and axle differentials. Pull scheduled samples at each valve to catch wear-metal trends in the planetary final drives and impeller-clutch converter before they become failures. Case drain filtration on the steering and fan pump circuits gives an early read on hydraulic contamination. Coolant sample results matter: the separated engine cooling system and AMOCS radiator run hot in mining duty cycles, and ELC additive depletion shows up in lab data before overheating does.
Corrective & Common Repairs
Expect torque converter left-pedal modulation to need recalibration through Electronic Technician as the impeller clutch wears; it affects Rimpull Control System accuracy. Axle-shaft oil disc brakes and the optional axle oil cooler circuit are common failure points in dusty, high-load dozing; watch for axle oil temperature alerts on the EMS-III monitor. AMOCS radiator and aftercooler cores clog fast in overburden dust and need frequent cleaning through the side access doors. Hydraulic hose failures at the blade lift, tilt, and tip cylinders are the most frequent field repair on this machine.
Overhaul & Rebuild Points
Major rebuild attention on the 834G centers on the 3456 EUI engine (cylinder liners, injectors, and turbocharger) plus the impeller-clutch torque converter and planetary powershift clutch packs. The oil-bath planetary final drives pull independently of the wheels and brakes for rebuild, but check ring gear spline wear and thrust washers at overhaul. Inspect the box-section engine-end frame, two-plate front frame, and spread-hitch pins for fatigue cracking from repeated dozing shock loads. Blade trunnion joints run dry; remove shims to tighten the joint, don't add grease.
Seasonal & Environment Servicing
Cold-weather starts rely on the ADEM III system's pre-lube oil-pressure interlock, ether starting aid, and elevated cold idle; keep the ether cartridge charged and batteries at full capacity through winter. Factory-fill ELC protects to about -34°C (-29°F); order the extended -50°C (-58°F) coolant for arctic sites. In hot, dusty mining or quarry environments, service the air cleaner precleaner and dust valve daily, keep the AMOCS core and aftercooler screens clear, and lean on the axle oil cooler option to control differential temperature during sustained high-rimpull dozing.
834G common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 126-1817 | Filter-Oil | Hydraulic service | Check fitment → |
| 1G-8878 | Filter As-Oil | Hydraulic service | Check fitment → |
| 339-4361 | Switch As-Pressure | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
834G fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| 100-1 | Engine Oil Pressure circuit reading below the normal operating range (Low Oil Pressure Warning) | Low oil level, worn oil pump, plugged suction screen, or a failing oil pressure sensor or its wiring | Check oil level and condition first, confirm sensor supply voltage and signal wiring, then replace the sensor only if wiring checks out |
| 110-0 | Engine Coolant Temperature circuit reading above the normal operating range (High Coolant Temperature Warning) | Low coolant level, plugged radiator core, fan drive fault, thermostat stuck closed, or a failing coolant temperature sensor | Check coolant level and radiator/fan for debris, confirm thermostat and fan drive operation, then check the sensor circuit |
| 94-1 | Fuel Delivery Pressure circuit reading below the normal operating range (Low Fuel Pressure Warning) | Plugged primary or secondary fuel filter, air drawn into the suction side of the fuel system, or a weak fuel transfer pump | Replace fuel filters, check suction-side fittings for air ingress, then test transfer pump output pressure |
| 190-8 | Primary Engine Speed/Timing Sensor showing an abnormal frequency, pulse width, or period | Sensor air gap has drifted from spec, a damaged tone-ring tooth, or a corroded sensor connector | Check and reset the sensor air gap with a feeler gauge before replacing the sensor, and inspect the connector for oil contamination or corrosion |
| 342-8 | Secondary Engine Speed/Timing Sensor showing an abnormal frequency, pulse width, or period (redundant channel to the primary 190 sensor) | Same failure pattern as the primary sensor: air gap drift, tone-ring wear, or connector corrosion on the secondary circuit | Confirm which of the two speed/timing sensors the active code points to, then check its air gap and connector |
| 1-5 (same pattern repeats for cylinders 2 through 6) | Cylinder injector solenoid circuit reading current below normal, i.e. an open circuit | Injector harness damage where it routes through the valve cover, a corroded connector, or a failed injector solenoid | Inspect the harness and connector for oil contamination or chafing, swap the injector with an adjacent cylinder to confirm injector versus wiring, then check solenoid coil resistance against spec |
| 262-3 / 262-4 | 5-Volt Sensor Supply reading voltage above normal (3) or below normal (4), which can affect every sensor fed from that supply | A shorted or overloaded sensor circuit sharing the same 5V supply, or a failing ECM supply regulator | Disconnect the sensors on the shared supply one at a time to isolate the shorted circuit before condemning the ECM |
| 168-2 | Electrical System Voltage reading erratic, intermittent, or incorrect | Loose or corroded battery terminal or ground strap, a failing charging system, or a chafed main harness | Check battery terminals and machine ground straps first, then load-test the alternator and charging circuit |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
834G attachments & work tools
Blades
Factory blade lineup for the 834G is Straight, Universal (U), and Coal — Cat's own 834G literature does not use track-dozer S/SU/A naming and does not offer VPAT (that is a track-type tractor feature, not documented for this wheel dozer). Straight blade: 7.9 m3 (10.33 yd3) capacity, 5074 mm (199.8 in) overall width, blade weight about 3196 kg (7047 lb), for production dozing of stockpiled material. Universal blade: 11.13 m3 (14.56 yd3), 5151 mm (202.8 in) wide, about 4554 kg (10,042 lb), built for pushing large loads over long hauls in mining. Coal blade: 22.2 m3 (29.0 yd3), 5677 mm (223.5 in) wide, about 4290 kg (9450 lb), wing-angle design to retain lighter/bulkier material and hold load while dozing; it is a special-order work-tool item, not carried in the standard bulldozer-arrangement group. Installed bulldozer-arrangement weight (blade plus push arms, cylinders, mounting) runs higher than bare blade weight — roughly 7348 kg (16,200 lb) for the straight-blade arrangement and about 9251 kg (20,394 lb) for the U-blade arrangement.
Rippers
No ripper attachment is listed anywhere in the 834G's factory equipment groups — standard and optional equipment cover blades, guards, coolers and access stairs only, with no rear shank or ripper linkage offered. Single- and multi-shank rippers are a track-type tractor feature (D8 through D11 class); the 834G's articulated, rubber-tired chassis and rear hitch/drawbar arrangement are not built for ripping loads. Jobs needing a rear ripping tool on this size class typically call for a dedicated crawler tractor instead of a wheel dozer.
Winches
No winch option appears in the 834G equipment lists; the rear fitment is a drawbar with pin only, sized for light towing or recovery, not a winch mount. Powered winches are more commonly fitted to Cat track-type tractors used in logging and cable-skidding work rather than to the 834 wheel dozer line.
Drawbars/Counterweights
A drawbar with pin at the rear of the box-section engine-end frame is standard equipment; no published drawbar-pull rating or separate counterweight/ballast package is documented for the 834G. The machine's own operating weight — about 47,106 kg (103,849 lb) with the straight blade — combined with the two-plate front frame and large spread-hitch design, provides the mass and load distribution needed to resist blade push and steering loads without an add-on ballast package.
Cab/ROPS guarding
The cab has an integrated four-post ROPS/FOPS as standard, meeting SAE J1040/ISO 3471 for rollover protection and SAE J231/ISO 3449 Level II for falling-object protection; the cab is sound-suppressed, pressurized, and offered with air conditioning as standard. Factory optional guarding is limited to a crankcase guard (about 53 kg / 117 lb) and a hydraulic-tank guard (about 8 kg / 18 lb), plus an auxiliary lighting package and rear intermittent wiper — no dedicated forestry-grade brush screen, limb riser, or sweep package is listed for this generation. Rear screens, sweeps and limb risers do show up on 834-family machines working in logging or waste sites, but these are field-fitted additions outside Cat's own 834G option list.
Hydraulic arrangement (front/rear tools)
Hydraulics on the 834G are concentrated on the front blade circuit: a single floor-mounted electro-hydraulic lever runs lift/lower/tilt/tip through a main valve mounted outside the cab, fed by a variable-displacement, load-sensing pump shared with the steering system (gear pump output about 188 L/min / 49.7 gal/min at 1900 rpm, relief valve set near 29,000 kPa / 4206 psi). Lift cylinder bore/stroke is about 140 mm x 1021 mm (5.5 in x 40.2 in); tilt/tip cylinders run about 152 mm x 276 mm (6 in x 10.9 in) on the right side and 140 mm x 276 mm (5.5 in x 10.9 in) on the left. There is no separate rear implement hydraulic circuit — the rear of the machine carries only the articulation hitch and drawbar, so a rear-mounted tool would need its own auxiliary hydraulic tie-in, which is not part of the standard or optional 834G hydraulic package.
All 834G assemblies by section
Every catalogued assembly group for the Caterpillar 834G. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
2q-8502 Precleaner Gp
| 0T***99 | Plug-- To Head | 1 |
| 10***95 | Body As-Precleaner, . Sprocket | 1 |
| 18***13 | Precleaner As | 1 |
Braking System
220-1432 Accumulator Gp-Brake -Charged
| 06***35 | Valve-Gas | 1 |
| 11***10 | Protector-Gas Valve | 1 |
| 13***23 | Piston | 1 |
283-1137 Accumulator Gp-Brake -Uncharged
| 06***35 | Valve-Gas | 1 |
| 11***10 | Protector-Gas Valve | 1 |
| 13***23 | Piston | 1 |
219-4849 Control Gp-Service Brake
| 12***67 | Strip Assem. | 1 |
| 13***02 | Valve Group-Accumulator Charging | 1 |
| 13***07 | Tube As | 1 |
146-3725 Valve & Mtg Gp-Brake Control -Parking
| 10***46 | Rod-Control | 1 |
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
| 10***74 | Valve Group-Brake Control; -Parking | 1 |
106-1774 Valve Gp-Brake Control -Parking
| 10***74 | Valve Group-Brake Control; -Parking | 1 |
| 25***76 | Repair Kit; (Includes Boot, Seals, Ring, Ball And Springs) | 1 |
| 4J***33 | Seal Fuel Injection Pump | 2 |
Cooling System
2q-8493 Cooling Ar -Custom
| 10***04 | Warning Group-Backup | 1 |
| 11***22 | Hood & Guard Group | 1 |
| 11***23 | Guard Group-Radiator | 1 |
207-7553 Fan Gp-Suction
| 11***47 | Hinge Assem. | 2 |
| 14***11 | Spider As-Fan; (8-Blade) | 1 |
| 16***35 | Adapter-Fan | 1 |
175-0262 Lines Gp-Water
| 06***08 | . Bolt; Socket, Clamp-Tubing | 1 |
| 10***72 | Hose; (Radiator) | 9 |
| 11***86 | Retainer | 10 |
189-7676 Radiator Gp -Custom
| 18***76 | Radiator Group; -Custom | 1 |
| 20***71 | Core As-Radiator | 10 |
148-7919 Valve Gp-Radiator Drain
| 11***35 | Bracket As | 1 |
| 12***72 | Hose-Hydraulic; (129-In) | 0 |
| 14***19 | Valve Group-Radiator Drain | 1 |
Electrical And Starting System
229-2348 Alternator Gp-Charging
| 10***31 | Fan-Alternator; (11-Blade) | 1 |
| 18***34 | Nut-Flange; (5/8-18-Thd) | 1 |
| 1H***44 | Lockwasher (Bracket To Cab) | 2 |
230-1584 Alternator Gp-Charging
| 10***28 | Wire As | 1 |
| 19***35 | Pulley; (8 Groove) | 1 |
| 1K***72 | Locknut Horn To Guard | 1 |
226-4904 Lines Gp-Alternator Air
| 16***98 | Cap-Rain | 1 |
| 1W***24 | Clamp-Hose | 4 |
| 22***04 | Lines Group-Alternator Air | 1 |
189-7885 Mounting Gp-Wiring
| 18***85 | Mounting Group-Wiring; -Custom | 1 |
| 18***86 | Plate As | 4 |
| 5G***65 | Boss; (M10x1.5-Thd) | 1 |
214-4862 Sensor Gp-Position
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 3 |
| 21***62 | Sensor Group-Position; -Control Lever | 1 |
178-0629 Warning Gp-Backup
| 17***29 | Warning Group-Backup | 1 |
| 17***35 | Bracket As | 1 |
| 21***00 | Back-Up Alarm Assem. | 1 |
175-6712 Wiring Gp-Rear
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 15***55 | Kit; (Connecting Plug) (12-Pin) (Includes Plug As Wedge & Interface Seal) | 1 |
| 15***60 | Kit-Connecting Plug; (3-Pin)(Engine Sensor Wiring Harness) | 1 |
Frame And Body
189-7559 Bumper As-Rear
| 17***02 | Plate As | 1 |
| 17***88 | Plate As | 1 |
| 17***16 | Plate As | 1 |
189-7560 Bumper Gp-Rear
| 13***49 | Drawbar Group | 1 |
| 18***59 | Bumper As-Rear; -Rear | 1 |
| 18***60 | Bumper Group-Rear; -Rear | 1 |
219-5091 Bumper Gp-Rear -Custom
| 13***49 | Drawbar Group | 1 |
| 16***57 | Plate | 1 |
| 17***86 | Tread; (Rh) | 1 |
219-4965 Cover Gp-Control Valve
| 21***65 | Cover Group-Control Valve | 1 |
| 21***66 | Cover As | 1 |
| 21***67 | Plate | 1 |
180-9272 Door Gp-Access -Hood Top
| 12***76 | Cam-Latch | 1 |
| 12***68 | Lock As | 1 |
| 17***81 | Latch Assem. | 1 |
189-7680 Door Gp-Access -Lh
| 12***72 | Seal; (135-cm) | 0 |
| 17***00 | Pawl | 1 |
| 18***78 | Door As | 1 |
189-7681 Door Gp-Access -Rh
| 12***72 | Seal; (135-cm) | 0 |
| 17***00 | Pawl | 1 |
| 18***79 | Door As | 1 |
163-8033 Door Gp-Access -Hood Side, Rear, Rh
| 13***66 | Nut; (M14x2-Thd) | 4 |
| 14***08 | Door As | 1 |
| 14***09 | Door As | 1 |
178-8883 Door Gp-Access -Radiator Guard Side
| 17***81 | Latch Assem. | 1 |
| 17***83 | Door Group-Access; -Radiator Guard Side | 1 |
| 17***84 | Plate As | 1 |
136-5049 Drawbar Gp
| 13***49 | Drawbar Group | 1 |
| 14***73 | Handle As | 1 |
| 1V***34 | Pin | 1 |
219-4850 Frame As-Front -Custom
| 21***31 | Plate | 1 |
| 21***32 | Plate | 1 |
| 21***33 | Tube | 1 |
219-4839 Frame As-Rear -Custom
| 10***50 | Plate | 6 |
| 11***23 | Stud-Weld; (M10x1.5x25-mm) | 3 |
| 13***93 | Boss; (M12x1.75x20-mm) | 1 |
173-7254 Guard Gp-Radiator
| 09***25 | Plate-Latch | 2 |
| 10***04 | Bolt; (Socket Head) (M10x1.5x30mm) | 8 |
| 10***07 | Spacer; (13.5x17.5x14.4-mm Thk) | 2 |
195-7077 Guard Gp-Radiator
| 14***67 | Spacer; (13x30x22.2-mm Thk) | 2 |
| 17***86 | Channel As | 1 |
| 19***77 | Guard Group-Radiator | 1 |
189-7674 Hood & Guard Gp -Custom
| 13***75 | Rail As; (Rh) | 1 |
| 13***77 | Rail As; (Lh) | 1 |
| 13***80 | Support As; (Rh) | 1 |
219-4962 Lines Gp-Grease
| 14***96 | Tube As | 1 |
| 16***73 | Tube As | 1 |
| 16***74 | Tube As | 1 |
143-9361 Panel Gp-Side -Hood Side, Front, Rh
| 14***10 | Panel As-Rh | 1 |
| 14***11 | Panel As-Lh | 1 |
| 14***61 | Panel Group-Side; -Hood Side, Front, Rh | 1 |
Hydraulic System
217-6720 Actuator Gp-Pilot Control
| 03***05 | Seal-O-Ring | 1 |
| 11***83 | Housing | 1 |
| 11***85 | Retainer | 1 |
217-6719 Actuator Gp-Pilot Control -Proportional Solenoid
| 03***05 | Seal-O-Ring | 1 |
| 11***83 | Housing | 1 |
| 11***85 | Retainer | 1 |
220-4315 Cylinder Gp-Lift
| 09***26 | Seal-O-Ring | 1 |
| 09***09 | Ring | 1 |
| 10***62 | Wear Ring | 1 |
179-1557 Filter & Lines Gp-Hydraulic -Case Drain
| 14***60 | Elbow Group | 6 |
| 14***30 | Tee As | 2 |
| 14***43 | Tee As-Orfs | 1 |
219-5102 Filter & Mtg Gp-Hydraulic -Custom
| 09***96 | Spacer; (12x20x23-mm Thk) | 1 |
| 14***39 | Connector As. | 1 |
| 14***47 | Elbow; (-12 Orb/Orfs) | 1 |
115-2129 Filter Gp-Oil
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 11***29 | Filter Group-Oil; -Steering, Implement, Pilot | 1 |
| 12***17 | Filter-Oil; (Ultra High Efficiency)(Hydraulic, Transmission) | 1 |
166-4647 Filter Gp-Oil
| 16***09 | Plug As-Hydraulic | 1 |
| 16***47 | Filter Group-Oil; -Axle Oil Clr, Systems Case Dr | 1 |
| 1G***78 | Filter As-Oil; (Advanced Efficiency)(Hydraulic) | 1 |
219-4896 Lines Gp-Front
| 19***26 | Bracket As | 2 |
| 1P***03 | Seal - Rectangular (31.86mm Id) | 8 |
| 1P***66 | Split Flange Half, -16 (Cat) | 16 |
219-4890 Lines Gp-Hydraulic -Custom
| 11***29 | Filter Group-Oil; -Steering, Implement, Pilot | 1 |
| 11***45 | Hose As | 1 |
| 12***86 | Hose As | 1 |
189-7888 Lines Gp-Hydraulic Fan -Custom
| 10***15 | Elbow Group | 1 |
| 11***01 | Spacer; (12x20x10-mm Thk) | 1 |
| 12***44 | Hose As | 1 |
219-4861 Lines Gp-Hydraulic Fan -Custom
| 13***84 | Clip | 1 |
| 13***25 | Motor Group-Gear; -Hydraulic Fan | 1 |
| 14***15 | Connector As | 1 |
219-4924 Lines Gp-Lift Cylinder
| 1P***03 | Seal - Rectangular (31.86mm Id) | 4 |
| 1P***04 | Seal - Rectangular (45mm Dia) | 8 |
| 1P***67 | Flange-Half (43.31 mm Id) | 8 |
139-6825 Motor Gp-Gear -Hydraulic Fan
| 03***36 | Seal-O-Ring | 2 |
| 13***25 | Motor Group-Gear; -Hydraulic Fan | 1 |
| 19***70 | Flange As | 1 |
213-5268 Motor Gp-Piston
| 09***90 | Bolt-Socket Head; (M14x2x60-mm) | 4 |
| 10***62 | Dowel | 2 |
| 16***03 | Shim-Shaft | 1 |
215-2349 Pump & Mtg Gp-Hydraulic Fan
| 15***47 | Adapter Group | 1 |
| 16***67 | Fitting As; (Quick Disconnect, Male)(Quick Disconnect) | 1 |
| 21***49 | Pump & Mtg Group-Hydraulic Fan | 1 |
203-1606 Pump & Mtg Gp-Implement
| 20***06 | Pump & Mtg Group-Implement | 1 |
| 21***25 | Pump Group-Piston; -Implement | 1 |
| 6V***81 | Seal-O-Ring | 1 |
215-5721 Pump Gp-Piston -Hydraulic Fan
| 08***19 | Pin | 1 |
| 09***70 | Bolt-Socket Hd; (M12 X 1.75 X 45) | 4 |
| 10***35 | Cone-Bearing | 1 |
219-7225 Pump Gp-Piston -Implement
| 00***36 | Key | 1 |
| 11***73 | Bearing-Special Roller | 2 |
| 11***71 | Swashplate | 1 |
152-7767 Pump Gp-Piston -Hydraulic Fan
| 08***19 | Pin | 1 |
| 09***70 | Bolt-Socket Hd; (M12 X 1.75 X 45) | 4 |
| 10***35 | Cone-Bearing | 1 |
185-0275 Rotating Gp-Motor -Hydraulic Fan
| 16***78 | Bearing-Spherical | 1 |
| 16***79 | Pin | 3 |
| 16***82 | Washer; (42-mm Odx2.7-mm Thk) | 1 |
189-9379 Rotating Gp-Pump -Hydraulic Fan
| 09***15 | Ring-Retaining | 1 |
| 12***69 | Barrel | 1 |
| 13***73 | Plate-Valve | 1 |
219-4894 Tank & Mtg Gp-Hydraulic
| 13***96 | Bracket As | 1 |
| 13***97 | Bracket As | 1 |
| 15***02 | Tank Group-Hydraulic | 1 |
153-3602 Tank Gp-Hydraulic
| 12***58 | Bolt-Mounting; (1/2-20x1.75-In) | 2 |
| 13***09 | Cover As | 1 |
| 14***03 | Tube As | 1 |
219-4895 Valve & Mtg Gp-Main Control -3-Function
| 08***97 | Washer; (13x50x6-mm Thk) | 4 |
| 09***81 | Spacer; (10.5x20x10.0mm Thk) | 1 |
| 09***66 | Washer; (Hard) (4.5x9x1mm Thk) | 4 |
128-2780 Valve Gp-Check -Reversing Fan
| 12***79 | Kit-Seal; (Check Valve)(Hydraulic Fan, Reversing) | 2 |
| 12***80 | Valve Group-Check; -Secondary Steering | 1 |
162-2191 Valve Gp-Fan Reversing
| 09***13 | Seal-O-Ring | 1 |
| 12***80 | Valve Group-Check; -Secondary Steering | 2 |
| 15***40 | Valve Group-Solenoid; -Reversing Fan, Ride Control | 1 |
221-3927 Valve Gp-Main Control -3-Function
| 09***04 | Bolt-Socket Head; (M12x1.75x110-mm) | 4 |
| 10***31 | Stem | 1 |
| 10***56 | Valve; (Load Check) | 3 |
112-1817 Valve Gp-Manual -Lowering Control
| 11***17 | Valve Group-Manual; -Ride Control-Hydraulic Lockout | 1 |
| 11***61 | Seal Kit; (Includes Seals, Thrust Ring, Stem And Connectors) | 1 |
| 20***71 | Valve Group-Manual; (Coupler Pin, Lift Arm Lwr Cont) | 1 |
205-3998 Valve Gp-Pump Control -Pressure, Flow Compensator-Implement
| 09***75 | Pin, Roller | 1 |
| 09***81 | Plate, Slide | 1 |
| 10***60 | Spool-Torque | 1 |
191-2929 Valve Gp-Pump Control -Pressure, Flow Compensator-Hydraulic Fan
| 03***43 | Seal-O-Ring | 1 |
| 10***45 | Valve-Orifice; (Hydraulic Oil Check) | 1 |
| 19***29 | Valve Group-Pump Control; -Pressure, Flow Compensator-Hydraulic Fan | 1 |
139-3544 Valve Gp-Relief -Steering, Implement Pilot
| 03***33 | Seal-O-Ring; (12.42mm Id) | 1 |
| 13***44 | Valve Group-Relief; -Steering, Implement Pilot | 1 |
| 2M***80 | Seal--To Connector Pump Outlet | 1 |
186-6218 Valve Gp-Relief -Steering, Implement Pilot
| 13***15 | Manifold | 1 |
| 13***44 | Valve Group-Relief; -Steering, Implement Pilot | 1 |
| 18***18 | Valve Group-Relief; -Steering, Implement Pilot | 1 |
166-8498 Valve Gp-Relief -Crossover, Rvsg Fan; Fan Motor
| 13***45 | Seal Kit; (Includes Parts Marked J) | 1 |
| 16***49 | Seal-O-Ring; (12.42mm Id) | 1 |
| 16***61 | Ring-Backup | 2 |
221-3935 Valve Gp-Relief -Main
| 22***35 | Valve Group-Relief; -Main | 1 |
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 1 |
| 4J***22 | Seal-Interface Between 3rd & Tilt Valve | 1 |
221-3939 Valve Gp-Relief -Main
| 11***75 | Ring-Backup (24.92mm Id) | 1 |
| 22***39 | Valve Group-Relief; -Main | 1 |
| 2P***75 | Seal-O-Ring | 1 |
221-3938 Valve Gp-Relief -Line
| 11***75 | Ring-Backup (24.92mm Id) | 1 |
| 22***38 | Valve Group-Relief; -Line | 1 |
| 2P***75 | Seal-O-Ring | 1 |
175-2791 Valve Gp-Shuttle
| 17***91 | Valve Group-Shuttle | 1 |
| 20***29 | Retainer | 2 |
| 2D***42 | Ball 6.35 mm(.25 In.)Diameter | 2 |
151-7455 Valve Gp-Solenoid
| 13***49 | Body | 1 |
| 14***07 | Plug; (Hex Head) (-6 Orb) (Current) (16***35 Friction Disc Interchangeable With 11***47) (Use All Of One Part Number) | 2 |
| 14***11 | Plug Group | 1 |
195-3739 Valve Gp-Solenoid -Pump Control
| 16***08 | Washer; (13.03x25.4x2.38-mm Thk) | 1 |
| 17***92 | Kit-Seal; (Solenoid Valve) | 1 |
| 19***39 | Valve Group-Solenoid; -Pressure Reducing | 1 |
149-2610 Valve Gp-Solenoid
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 11***43 | Locknut; (5/16-18-Thd) | 1 |
| 14***10 | Valve Group-Solenoid; -Axle Oil Cooler-Hydraulic Lockout | 1 |
152-8340 Valve Gp-Solenoid -Ride Control
| 11***43 | Locknut; (5/16-18-Thd) | 2 |
| 15***38 | Cartridge Assem. | 1 |
| 15***40 | Valve Group-Solenoid; -Reversing Fan, Ride Control | 1 |
Implements
219-4830 Stabilizer Gp-Bulldozer
| 13***45 | Spacer | 4 |
| 14***21 | Pin | 1 |
| 18***69 | Cover As | 1 |
133-2203 Trunnion Gp-Bulldozer
| 11***66 | Trunnion | 2 |
| 13***02 | Support As-Trunnion | 1 |
| 13***03 | Trunnion Group-Bulldozer | 1 |
Machine Arrangement
2q-8490 Conversion Ar-Machine -Custom
| 13***03 | Trunnion Group-Bulldozer | 1 |
| 13***65 | Washer; (13.8x45x3-mm Thk) | 4 |
| 14***60 | Frame As-Front | 1 |
Operator Station
207-7875 Condenser & Mtg Gp-Refrigerant
| 09***64 | Grommet | 4 |
| 10***27 | Condenser Group-Refrigerant; -With Fans-Rops Mounted-Remote Mounted | 1 |
| 10***57 | Washer; (22x76.2x6-mm Thk) | 8 |
103-9527 Condenser Gp-Refrigerant -With Fans
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
| 10***27 | Condenser Group-Refrigerant; -With Fans-Rops Mounted-Remote Mounted | 1 |
183-5045 Control Gp-Electrohydraulic -3-Function
| 09***69 | Spacer; (7.5x12x12-mm Thk) | 1 |
| 10***01 | Kit; (Receptacle) (12-Pin) (Includes Receptacle As & Wedge) | 1 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
193-2681 Lines Gp-Air Conditioner
| 03***67 | Bracket | 2 |
| 10***97 | Valve As; (Low Side) | 1 |
| 10***99 | Valve As; (Air Conditioner Refrigerant) | 1 |
Power Train
223-8504 Torque Converter & Housing Gp
| 10***69 | Seal-O-Ring; (Fuel Transfer Pump) | 1 |
| 13***93 | Cover | 1 |
| 13***18 | Gear-Idler; (45 Teeth) | 1 |
145-7108 Torque Converter Gp -Freewheel Stator, Lockup
| 0L***61 | Pin-Dowel; (9.4mm X 22mm) | 2 |
| 10***41 | Carrier-Ring | 1 |
| 12***01 | Shaft-Output | 1 |
Service Equipment And Supplies
9g-9288 Cap Gp-Protection
| 1L***72 | Dowel (Part Of 8s***99 Assem.) | 1 |
| 24***41 | Padlock Group; (1 On Fuel Tank Cap) (1 On Hydraulic Tank Cap) (1 On Grill Latch) | 1 |
| 2J***61 | Ring-Retaining | 1 |
Steering System
219-4985 Lines Gp-Secondary Steering
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
| 11***69 | Clip As-Connector; (3-Pin) | 1 |
| 14***07 | Adapter As | 1 |
219-4865 Lines Gp-Steering -Custom
| 14***21 | Hose As | 1 |
| 14***27 | Connector Group | 1 |
| 14***35 | Connect Group; (Each Includes) | 2 |
219-4858 Lines Gp-Steering Neutralizer
| 10***08 | Valve Group-Check; (Brake Accumulator) | 2 |
| 14***71 | Valve Group-Steering Neutralizer; -Stic Steering | 2 |
| 14***36 | Adapter; (Straight) (-6 Orb X -6 Orfs) | 4 |
194-3286 Plug Gp-Control Valve -Pressure, Flow Compensator-Steering-Steering Oil Pressure
| 18***67 | Seal-O-Ring | 1 |
| 19***86 | Plug Group-Control Valve; -Pressure, Flow Compensator-Steering-Steering Oil Pressure | 1 |
| 19***49 | Retainer | 1 |
150-7585 Pump Gp-Gear
| 00***14 | Ring-Retaining; (Internal) | 1 |
| 03***42 | Seal-O-Ring; (11.89mm Id) | 1 |
| 07***90 | Seal | 4 |
153-9624 Pump Gp-Piston -Steering
| 03***39 | Seal-O-Ring (Id=9.25mm) | 5 |
| 09***42 | Ring-Retaining | 1 |
| 10***14 | Seal-O-Ring | 1 |
176-7509 Rotating Gp-Pump -Steering
| 09***39 | Ring; (Retaining) | 1 |
| 17***09 | Rotating Group-Pump; -Implement | 1 |
| 19***85 | Plate-Distributor | 1 |
2q-7774 Steering Ar-Secondary
| 21***58 | Lines Group-Steering Neutralizer | 1 |
| 21***85 | Lines Group-Secondary Steering | 1 |
| 2Q***74 | Steering Ar-Secondary | 1 |
2q-7773 Steering Ar-Stic
| 14***50 | Valve & Mtg Group-Steering | 1 |
| 21***58 | Lines Group-Steering Neutralizer | 1 |
| 2Q***73 | Steering Ar-Stic | 1 |
144-7250 Valve & Mtg Gp-Steering
| 14***50 | Valve & Mtg Group-Steering | 1 |
| 15***65 | Elbow; (Spl) | 1 |
| 16***67 | Fitting As; (Quick Disconnect, Male)(Quick Disconnect) | 1 |
9t-3096 Valve Gp-Check -Pilot
| 9T***96 | Valve Group-Check; -Dead Engine, Lift Arm Lower | 1 |
149-4617 Valve Gp-Check
| 14***17 | Valve Group-Check; -Steering Quad | 1 |
| 17***69 | Valve Group-Check; -Steering | 2 |
| 17***70 | Valve Group-Check; -Steering | 2 |
176-9370 Valve Gp-Check -Steering
| 16***54 | Seal-O-Ring | 1 |
| 17***70 | Valve Group-Check; -Steering | 1 |
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 1 |
154-5656 Valve Gp-Check
| 14***18 | Connector As | 2 |
| 14***67 | Elbow Group; (Each Includes) | 1 |
| 14***74 | Elbow As | 2 |
176-9369 Valve Gp-Check -Steering
| 16***54 | Seal-O-Ring | 1 |
| 17***69 | Valve Group-Check; -Steering | 1 |
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 1 |
176-7520 Valve Gp-Pump Control -Pressure Compensator-Steering
| 17***20 | Valve Group-Pump Control; -Pressure Compensator-Steering High Pressure Cutoff | 1 |
| 19***07 | Kit-Valve Repair; (Pressure Compensator Valve) | 1 |
| 19***85 | Retainer | 1 |
6e-6188 Valve Gp-Relief -Pump Backup
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 1 |
| 4J***22 | Seal-Interface Between 3rd & Tilt Valve | 1 |
| 4T***70 | Spring | 1 |
6e-3986 Valve Gp-Relief -Secondary Steering
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 1 |
| 6E***86 | Valve Group-Relief; -Secondary Steering | 1 |
| 6E***53 | Kit-Seal; (Relief Valve) | 1 |
6e-5566 Valve Gp-Selector & Press Cont -Secondary Steering
| 10***66 | Adapter | 2 |
| 2M***80 | Seal--To Connector Pump Outlet | 2 |
| 5S***01 | Spacer; (7.54x14.15x0.9-mm Thk) | 3 |
4t-1860 Valve Gp-Shuttle
| 14***03 | Seal-O-Ring | 1 |
| 14***04 | Ring-Backup | 2 |
| 14***05 | Ring-Backup | 2 |
148-2341 Valve Gp-Shuttle
| 14***03 | Seal-O-Ring | 1 |
| 14***04 | Ring-Backup | 2 |
| 14***05 | Ring-Backup | 2 |
150-4087 Valve Gp-Steering -With Secondary Steering
| 15***87 | Valve Group-Steering; -With Secondary Steering | 1 |
| 15***78 | Valve Group-Diverter; (Load Sensing) | 1 |
| 1P***79 | Flange (Half) | 2 |
306-9397 Valve Gp-Steering
| 14***07 | Plug; (Hex Head) (-6 Orb) (Current) (16***35 Friction Disc Interchangeable With 11***47) (Use All Of One Part Number) | 3 |
| 14***09 | Plug As-Sto | 3 |
| 15***52 | Plug Group | 1 |
146-7571 Valve Gp-Steering Neutralizer
| 14***71 | Valve Group-Steering Neutralizer; -Stic Steering | 1 |
| 3D***24 | O-Ring - For Oil Drain & Level Plug (Items 3 & 7) | 1 |
| 5F***35 | Spring | 1 |
834G serial number reference
The PIN/serial plate is a riveted metal tag on the machine frame, typically on the right side under the cab or near the articulation hitch, with the number also stamped into the frame steel as a cross-check against a swapped or repainted plate. Read it as an 8-character code (or the last 8 characters of a full 17-character PIN on plates from 2001 onward): the first 3 characters are the letter/number prefix tying the machine to its model and production block, and the trailing digits are the sequential unit number built under that prefix.
| Prefix | Identifies | Notes |
|---|---|---|
| 6GZ | 834G | Earlier production block of the 834G wheel dozer, approx. model year 1999. Cat 3456 direct-injection turbocharged-aftercooled (DITA) diesel, EUI fuel system. Single wheel-dozer chassis configuration - no XL/LGP/Std/XW split documented under this prefix. Load-sensing hydraulic steering with the STIC (steering and transmission integrated control) lever. Exact model-year cutover to the BPC block not documented in public literature - confirm with dealer. |
| BPC | 834G | Later production block of the 834G wheel dozer, starting around 2001 and continuing into the early-to-mid 2000s ahead of the 834H replacing the line. Same Cat 3456 DITA/EUI engine and load-sensing STIC steering as the earlier 6GZ block - a running production change within one 834G generation, not a separate submodel. Same single wheel-dozer arrangement; no XL/LGP/Std/XW split documented. |
Frequently asked questions
What engine does the Caterpillar 834G wheel dozer use?
The Cat 3456 diesel, a Tier 2, electronic unit injection engine built on the 3406E platform. Gross output is about 525 hp (392 kW); flywheel/converter-drive net rating is about 481 hp (359 kW); direct-drive net rating is about 451 hp (336 kW).
What is the operating weight of the 834G?
Roughly 103,800 to 106,800 lb (about 47.1 to 48.5 tonnes), depending on which blade is fitted: straight, universal, or coal blade.
What replaced the Caterpillar 834G?
The Cat 834H, introduced around 2005 with a C18 ACERT engine, succeeded the 834G. The 834K followed in 2013-2014 with further updates to the cab, transmission, and emissions system.
What 834G owners discuss
What engine is actually in the 834G, and does it match other 834 models?
The left pedal doesn't feel like a normal dozer clutch pedal. Is that normal?
What hydraulic-side maintenance item gets missed on quick services?
What wears on a wheel dozer like this instead of a track undercarriage?
What electrical or sensor issues come up most on this model?
Is engine-bay debris buildup a real concern on this machine?
What should I check before buying a used 834G?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Serial-range & configuration variants
This page covers the Caterpillar 834G. Related factory variants of the same model family:
Need a specific 834G part?
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