Caterpillarbackhoe loader(no series)
Caterpillar 438
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar 438 is a mid-size 4x2/4x4 wheeled backhoe loader built for trenching, excavation, and material handling on construction and utility sites. The base machine, cataloged as the 438 Series II under serial prefix 3DJ, was produced roughly 1988 through 1993 and carries a naturally aspirated Cat 4.236 diesel, a 3.9 L (236 cu in) inline 4-cylinder rated about 77 net / 83 gross horsepower, paired with a 4-speed synchromesh transmission and hydrostatic power steering. Operating weight runs roughly 7,200 to 7,365 kg (15,840 to 16,240 lb) depending on 2WD/4WD axle choice, bucket, and stabilizer setup. Cat sold it alongside sibling 416, 426, 428, and 436 Series II backhoes sharing the same drivetrain architecture, with standard and extendable-dipperstick (extendahoe) boom options and pallet-fork attachments in some markets. The 438 Series II gave way to the 438B (about 1992-1996, serial prefix 3KK), which switched to the Cat 3054 engine family, followed by the turbocharged direct-injection 438C and the 438D.
Each generation change on the 438 tracked Cat's engine strategy more than a chassis redesign: the Series II's naturally aspirated 4.236 gave way to the 3054 block on the B, then to turbocharged, direct-injection 3054 variants on the C and D, adding power and emissions compliance while keeping the same basic backhoe-loader footprint and control layout. In today's used-equipment and parts market, the 438 Series II sits at the entry point of that lineage: low acquisition cost, no electronic engine controls to trip up an owner-operator, and a simple mechanical driveline that keeps it working for small contractors, farms, and rental yards needing a basic digger-loader. Because the 4.236 platform is long out of Cat's current engine lineup, parts support increasingly relies on used and aftermarket supply for engine, hydraulic, and driveline components, which makes correct identification of the exact series and serial prefix essential before ordering anything for this machine.
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 438 specifications
Engine
| 438 Series II engine model | Cat 4.236, naturally aspirated 4-cylinder diesel |
| 438 Series II gross/net power | 83 hp (61.9 kW) gross / 77 hp (57.4 kW) net |
| 438 Series II displacement | 3.86 L (235.6 cu in), 4 cylinders |
| 438B engine model | Cat 3054, turbocharged 4-cylinder liquid-cooled diesel |
| 438B gross power | 84 hp (62.6 kW) at 2200 rpm, compression 15.7:1 |
| 438B displacement | 4.4 L (268 cu in), 4 cylinders |
| 438C engine model | Cat 3054 DIT, turbocharged direct-injection 4-cylinder diesel |
| 438C gross/net power | 89 hp (66 kW) gross / 85 hp (63 kW) net at 2200 rpm |
| 438C displacement | 4.0 L (244 cu in), 4 cylinders, compression 16.2:1 |
| 438C torque | 435 Nm (305 lb-ft) at 1400 rpm |
| 438D engine model | Cat 3054T, turbocharged 4-cylinder diesel |
| 438D gross/net power | 98 hp (73.1 kW) gross / 94 hp (70.1 kW) net at 2200 rpm |
| 438D displacement | 4.0 L (244.1 cu in), 4 cylinders |
| Emissions tier | Not published on available spec sheets for any 438 generation — these predate formal emissions-tier reporting. |
Weights
| 438 Series II operating weight (2wd) | 7,364 kg (16,235 lb) |
| 438B operating weight | 7,365 kg (16,238 lb) |
| 438C operating weight (4wd) | 7,558–7,560 kg (16,667–16,670 lb), varies by configuration |
| 438D operating weight (4wd) | 7,748 kg (17,081.5 lb) |
| Shipping weight / ground pressure | Not published on available spec sheets for any 438 generation. |
Dimensions
| 438 Series II transport length x width x height | 5.70 x 2.41 x 3.60 m (18.7 x 7.9 x 11.81 ft) |
| 438 Series II wheelbase / ground clearance | 2.07 m (6.79 ft) / 0.34 m (1.1 ft) |
| 438B wheelbase | 2.06 m (81.4 in / 6.78 ft); full transport length/width/height not published for this generation |
| 438C transport length x width x height | 5.74–5.75 x 2.40 x 3.75–3.77 m (18.83–18.86 x 7.87–7.9 x 12.33–12.36 ft), minor variance by configuration |
| 438C wheelbase / ground clearance | 2.10 m (6.89–6.92 ft) / 0.34 m (1.1 ft) |
| 438D transport length x width x height | 5.76 x 2.41 x 3.74 m (18.9 x 7.87–7.9 x 12.28 ft) |
| 438D wheelbase / ground clearance | 2.10 m (6.89–6.9 ft) / 0.32–0.34 m (1.05–1.1 ft) |
Performance
| 438 Series II travel speed | 30.6 km/h (19 mph) forward, 30.7 km/h (19.1 mph) reverse |
| 438 Series II hydraulic pump flow / relief pressure | 138 L/min (36.5 gpm), 186 bar (2,698 psi) |
| 438 Series II dig depth (std) / loader lift capacity at full height | 4.82 m (15.8 ft) / 2,364 kg (5,212 lb) |
| 438B drawbar power | 18.8 kW (25.3 hp) |
| 438B hydraulic pump flow | 138 L/min (36.5 gpm), variable-flow axial-piston system |
| 438C travel speed | 31.5–32.3 km/h (19.6–20 mph), forward and reverse, varies by configuration |
| 438C hydraulic pump flow / relief pressure | 162 L/min (43 gpm), 207 bar (3,000 psi) |
| 438C dig depth (std) / loader lift capacity at full height | 4.33–4.87 m (14.2–16.0 ft, varies by configuration) / 3,300 kg (7,275 lb) |
| 438C bucket breakout / bucket dig force | 11,105–11,330 lb (5,048–5,139 kg) breakout; 11,330–12,195 lb bucket dig force, varies by configuration |
| 438D travel speed | 31.9 km/h (19.8 mph), forward and reverse |
| 438D hydraulic pump flow / relief pressure | 163 L/min (43.1 gpm), 228 bar (3,307 psi) |
| 438D dig depth (extended) / bucket dig force | 5.91 m (19.4 ft) extended reach; 14,710 lb (6,672 kg) bucket dig force. Standard-stick dig depth not published. |
| Gradeability | Not published on available spec sheets for any 438 generation. |
Service capacities (summary)
| 438C fuel tank | 127–128 L (33.7–33.9 gal) |
| 438C hydraulic system | 79–80 L (20.8–20.9 gal) |
| 438C engine oil | 7.3–7.6 L (1.9–2.0 gal) |
| 438C cooling system | 19–22 L (5.0–5.8 gal), varies by configuration |
| 438D fuel tank | 128.3 L (33.9 gal) |
| 438 Series II / 438B / 438D fluid capacities | Hydraulic, engine oil and cooling system capacities not published on available spec sheets for these generations — only fuel tank data documented for 438D, and full fluid capacity set documented for 438C only. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
438 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | 7 L (1.85 US gal / 7.4 US qt) | Cat DEO (Diesel Engine Oil), API CD/CF-rated multigrade. SAE 10W-30 for moderate/cold climates, 10W-40 to 15W-40 for warmer/Mediterranean climates. Machine runs the naturally aspirated 3.9 L 4-cylinder diesel (Cat/Perkins 4.236 family) — do not confuse with the 3204 or 3054 engines used in later 438 Series II/B/C/D updates. |
| Cooling system | 21 L (5.5 US gal) | Cat heavy-duty coolant/antifreeze (full-strength, organic/extended-life type acceptable as upgrade) mixed to the climate-rated freeze point. Follow the standard 50/50 premix guidance unless local climate calls for a stronger mix. |
| Fuel tank | Not documented for this exact series/generation in available references — verify capacity against the machine data plate or dealer parts lookup. | No. 2-D diesel fuel meeting Cat fuel specification; use No. 1-D or a winter blend in cold climates to prevent gelling. |
| Transmission and torque converter (powershift) | 10 L (2.6 US gal) | Cat TDTO (Transmission/Drive Train Oil). Straight-grade by climate: SAE 10W for cold climates, SAE 30 for moderate/Mediterranean climates, SAE 50 for sustained hot-climate service. |
| Front axle differential | 7.5 L (2.0 US gal) | Cat GO (Gear Oil) meeting API GL-5. SAE 80W-90 for moderate climates, SAE 85W-140 for hot/Mediterranean climates. |
| Front final drives (each hub) | 0.75 L (0.2 US gal) per hub | Cat GO (Gear Oil) meeting API GL-5. SAE 80W-90 for moderate climates, SAE 85W-140 for hot/Mediterranean climates — same fill as the front differential. |
| Rear axle differential (integrated housing, includes rear final drives) | 18.5 L (4.9 US gal) | Cat TDTO (Transmission/Drive Train Oil), SAE 10W-30, for moderate climates — this axle shares Cat's drive-train oil spec rather than a conventional gear oil because the rear final drives are combined with the differential in one sump. |
| Hydraulic system (tank/reservoir) | 36 to 38 L (9.5 to 10.0 US gal) tank oil fill; total system (tank plus lines and cylinders) closer to 80 L (21 US gal) per the factory hydraulics reference for this chassis family — varies by configuration. | Cat TDTO (Transmission/Drive Train Oil), SAE 10W for cold climates, SAE 30 for moderate/Mediterranean climates — hydraulic and powertrain share the same fluid spec on this generation. |
| Grease (all fittings/pins and bushings) | Spec only — no fill volume | Cat multipurpose grease (MPGM), NLGI 2, molybdenum disulfide-fortified for pin and bushing points. |
| Backhoe extendable stick (slide rails) | Spec only — no fill volume | Open-gear/slide compound, NLGI 0/1 grade, for the extendable-stick wear surfaces. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 438 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 |
|
Servicing the 438 beyond the schedule
Predictive Maintenance & Fluid Analysis
On the 438's naturally aspirated 4.236 diesel, oil sampling at each 250-hour interval catches bore glazing and injector wear before they show up as smoke or lost power. Watch hydraulic oil for water intrusion around the backhoe swing cylinder seals and check transmission oil for clutch material at every filter change. Coolant testing matters on machines still running conventional coolant instead of extended-life fluid, since these units are now over three decades old and heat-cycle fatigue in the radiator and water pump is common.
Corrective & Common Repairs
Common failures on the 438 center on the hydrostatic steering unit losing response, worn kingpin bushings causing front-axle knock, and leaking backhoe swing cylinder seals from age-hardened rubber. The 4-speed synchromesh transmission's reversing shuttle clutch packs wear with heavy shuttle-shifting and need periodic pressure checks. Stabilizer cylinder drift and loader lift-arm pin wear are frequent complaints on high-hour machines. Because parts support for the naturally aspirated 4.236 is thinning, sourcing injectors, pumps, and gaskets ahead of a failure keeps this backhoe working instead of parked.
Overhaul & Rebuild Points
A 438 heading for overhaul usually needs the 4.236 block bored and sleeved, injector pump recalibrated, and head resurfaced after decades of duty cycles the naturally aspirated engine wasn't designed to see today. Planetary final drives at the front and rear axles wear at the reduction gears and need bearing and seal kits at teardown. Backhoe boom and stick bushings, along with the swing-frame pins, are worth replacing as a set rather than one at a time once play develops in the linkage.
Seasonal & Environment Servicing
Cold-weather starts on the naturally aspirated 4.236 depend on healthy glow plugs or ether-start systems and correctly rated engine oil viscosity, since the engine has no turbo to help compensate for thin cold oil. In hot, dusty environments, clean the radiator core and check the primary air filter more often than the 500-hour default, since the 438's engine bay traps debris around the compact toolbox layout. Wet-season work demands more frequent hydraulic oil and fuel/water separator checks given the machine's era-appropriate seal materials.
438 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 8T-6655 | Film-Identification (On Fuel Filter) | Fuel system service | Check fitment → |
| 8T-6656 | Film-Identification (On Oil Filter) | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
438 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Coolant Temperature warning lamp (red thermometer symbol) + buzzer | Engine coolant temperature above normal operating range | Low coolant level, clogged radiator fins, slipping or failed fan belt, faulty temperature sender | Idle engine, check coolant level when safe, inspect radiator and belt before resuming work |
| Engine Oil Pressure warning lamp (red oil-can symbol) + buzzer | Engine oil pressure below normal operating range | Low oil level, worn oil pump, blocked suction screen, faulty pressure sender or switch | Shut engine down immediately, check oil level and for leaks before restart |
| Charging System warning lamp (battery symbol) | Alternator not charging or charging system voltage out of range | Broken or slipping alternator belt, worn brushes, bad regulator, loose or corroded wiring | Check belt tension and battery wiring, test alternator output with machine at operating rpm |
| Air Cleaner Restriction indicator (yellow filter symbol / air-cleaner service indicator) | Intake air restriction has reached the service limit | Clogged primary air filter element, dust or debris packed in the housing | Inspect and clean or replace the air filter element, reset the restriction indicator |
| Hydraulic Filter Bypass/Restriction lamp | Hydraulic return or charge filter has bypassed due to excess restriction | Loaded or clogged hydraulic filter element, cold oil viscosity, contaminated hydraulic oil | Let hydraulic oil warm up, then check and replace the filter element if the lamp stays on |
| Parking Brake engaged warning lamp | Parking brake is applied while transmission is placed in gear | Operator has not released parking brake, or brake switch/solenoid fault | Confirm parking brake lever position, check brake switch and wiring if lamp stays lit with brake released |
| Transmission/Torque Converter Oil Temperature gauge - high reading | Transmission or torque converter oil running hotter than normal | Low transmission oil level, clogged oil cooler, prolonged torque-converter stall (e.g. digging against a stuck bucket) | Reduce load, let oil cool, then check fluid level and cooler for blockage |
| Fuel Level Low warning lamp | Fuel tank level near empty | Normal fuel consumption, or a fuel gauge sender fault if the lamp is inconsistent with the tank | Refuel; if lamp behavior does not match actual tank level, check the sender and wiring |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
438 attachments & work tools
Front loader buckets
General-purpose and multi-purpose (4-in-1) front buckets sized around 1.0-1.3 m3 (1.3-1.7 yd3) with widths near 2.4 m (94 in), matched to this class's loader lift and breakout ratings. Side-dump front buckets are also offered for confined-space spoil placement.
Backhoe digging buckets
Standard and heavy-duty digging buckets for this class typically run roughly 300-900 mm (12-36 in) wide, with narrow trenching buckets down to about 300 mm (12 in) and wider ditch-cleaning/grading buckets. Bucket width is matched to stick reach and rated bucket digging force, which differs slightly between standard-stick and extended-stick configurations.
Hydraulic hammers/breakers
A mid-size hydraulic hammer, rated across roughly the 414-444 backhoe loader range, fits this machine for concrete, asphalt, rock breaking and frost-ground work. Hammer selection depends on carrier hydraulic flow and stick weight rating rather than one fixed size.
Pallet forks
Front-mount pallet forks fit the loader arm for palletized material handling, bagged aggregate, and yard/landscape work, mounted through the same front coupler or pin-on frame used for the loader bucket.
Brooms
Front-mount pickup or utility sweep brooms clear job sites and paved surfaces, typically driven hydraulically off the loader auxiliary circuit.
Augers
Rear-mounted augers bore post holes and small foundation holes, driven from the backhoe hydraulic circuit through a dedicated auger drive head; bit diameter is chosen for the job rather than fixed to the carrier.
Compaction tools
Rear-mount plate compactors and compaction wheels pack trench backfill and pipe bedding, powered from the backhoe hydraulic circuit in the same way as a hammer or auger.
Hydraulic thumb
An optional hydraulic thumb pairs with the backhoe bucket for grabbing rock, debris, and demolition material, run from a dedicated auxiliary hydraulic function.
Coupler/mounting system
The factory quick-coupler for this class is a Cat pin-lock design (mechanical or hydraulic release), compatible with Wain-Roy and Gannon-style buckets. This machine's operating weight sits near the boundary between quarter-yard and half-yard coupler families, so pin spacing should be confirmed against the specific unit before ordering tools.
Auxiliary hydraulics for attachments
Backhoe circuit relief pressure and flow figures vary by series: documented figures for this class range roughly 186-207 bar (2700-3000 psi) relief pressure and around 138 L/min (36.5 gal/min) flow. Match any hammer, auger, or compactor to the specific unit's rated flow and pressure, not a single class-wide figure.
Extendable stick (Extendahoe)
A factory-optional extendible dipper stick adds dig depth and reach beyond the standard-stick figures for this class. Standard-stick and extended-stick dig depth, reach, and lift capacity are published as separate rating sets.
Backhoe pivot configuration
Offered in both center-pivot and side-shift backhoe swing-frame arrangements. Side-shift versions let the backhoe trench alongside walls, curbs, or obstructions without repositioning the whole machine.
Drivetrain configuration
Available in 2-wheel-drive and 4-wheel-drive versions with a multi-speed power-shift transmission; 4WD is common at this machine's operating weight for tool-carrying stability and traction.
All 438 assemblies by section
Every catalogued assembly group for the Caterpillar 438. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Backhoe
9r6147 Boom Gp
| 9R***47 | Boom Group | 1 |
9r6318 Bucket Gp-Hoe
| 9R***18 | Bucket Group-Hoe | 1 |
9r6330 Bucket Gp-Hoe
| 9R***30 | Bucket Group-Hoe | 1 |
9r5630 Bucket Gp-Hoe
| 9R***30 | Bucket Group-Hoe | 1 |
9r6418 Bucket Gp-Hoe
| 9R***18 | Bucket Group-Hoe | 1 |
9r6524 Bucket Gp-Hoe
| 9R***24 | Bucket Group-Hoe | 1 |
9r6618 Bucket Gp-Rock
| 9R***18 | Bucket Group-Hoe | 1 |
9r6324 Bucket Gp-Hoe
| 9R***24 | Bucket Group-Hoe | 1 |
9r6336 Bucket Gp-Hoe
| 9R***36 | Bucket Group-Hoe | 1 |
9r6518 Bucket Gp-Hoe
| 9R***18 | Bucket Group-Hoe | 1 |
9r6530 Bucket Gp-Hoe
| 9R***30 | Bucket Group-Hoe | 1 |
9r6424 Bucket Gp-Hoe
| 9R***24 | Bucket Group-Hoe | 1 |
9r6536 Bucket Gp-Hoe
| 9R***36 | Bucket Group-Hoe | 1 |
9r6412 Bucket Gp-Hoe
| 9R***12 | Bucket Group-Hoe | 1 |
9r5618 Bucket Gp-Hoe
| 9R***18 | Bucket Group-Hoe | 1 |
9r6430 Bucket Gp-Hoe
| 9R***30 | Bucket Group-Hoe | 1 |
9r5624 Bucket Gp-Hoe
| 9R***24 | Bucket Group-Hoe | 1 |
9r6624 Bucket Gp-Rock
| 9R***24 | Bucket Group-Hoe | 1 |
9r6512 Bucket Gp-Hoe
| 9R***12 | Bucket Group-Hoe; -Heavy-Duty | 1 |
9r6312 Bucket Gp-Hoe
| 9R***12 | Bucket Group-Hoe | 1 |
9r6436 Bucket Gp-Hoe
| 9R***36 | Bucket Group-Hoe | 1 |
9r6151 Frame Gp-Swing
| 9R***51 | Frame Group-Swing | 1 |
9r0040 Linkage Gp-Backhoe Bucket
| 9R***40 | Linkage Group-Bucket | 1 |
9r0040 Linkage Gp-Bucket-Backhoe
| 9R***40 | Linkage Group-Bucket | 1 |
9r2961 Mounting Gp-Bucket-Extended Stick
| 9R***61 | Mounting Group-Attachment | 1 |
9r0868 Pad Gp-Street
| 9R***68 | Pad Group-Street; -Street | 1 |
9r1259 Stabilizer Gp-Side Shift
| 9R***59 | Stabilizer Group-Sideshift | 1 |
9r0793 Stick Ar-Extendable
| 3D***24 | O-Ring - For Oil Drain & Level Plug (Items 3 & 7) | 2 |
| 9R***93 | Stick Ar-Extendable | 1 |
| 9R***07 | Hydraulic Ar; Hydraulic Arrangement | 1 |
9r6118 Stick Gp-Extension
| 9R***18 | Stick Group-Extension; Stick Gp-Extendable | 1 |
9r6188 Stick Gp-Extendable
| 9R***88 | Stick Group-Extension | 1 |
9r5120 Stick Gp-Extendable
| 9R***20 | Stick Group-Extension; Stick Gp-Extendable | 1 |
| 9R***18 | Stick Group-Extension; Stick Gp-Extendable | 1 |
| 9R***88 | Stick Group-Extension | 1 |
9r6149 Stick Gp-Hoe
| 9R***49 | Stick Group-Hoe | 1 |
9w1251 Tip Gp-Abrasive
| 9W***51 | Tip Group-Abrasion | 1 |
7t4672 Tip Gp-Penetration
| 7T***72 | Tip Group-Penetration | 1 |
9j3172 Tip Gp-Short
| 9J***72 | Tip Group-Short | 1 |
Tips
| 1U***01 | Tip-Short | 0 |
| 1U***02 | Tip-Penetration; (Long) | 0 |
| 1U***09 | Tip-Penetration | 0 |
9r5866 Tooth Gp-Uni Bolt-On
| 9R***66 | Tooth Group-Uni | 1 |
9w1880 Tooth Gp-Uni Bolt-On
| 9W***80 | Tooth Group-Uni | 1 |
Basic Engine
7c3734 Camshaft Gp
| 7C***34 | Camshaft Group | 1 |
7w6206 Cover Gp-Valve Mechanism
| 7W***06 | Cover Group-Valve Mechanism | 1 |
7c3732 Crankshaft Gp
| 7C***32 | Crankshaft Group | 1 |
7c8213 Crankshaft Gp
| 7C***13 | Crankshaft Group | 1 |
7c6070 Cylinder Block As
| 7C***70 | Cylinder Block As | 1 |
7c6071 Cylinder Block Gp
| 7C***71 | Cylinder Block Group | 1 |
7c3735 Cylinder Head Gp
| 7C***35 | Cylinder Head Group; Head Gp-Cylinder | 1 |
7c3188 Cylinder Head Gp
| 7C***88 | Cylinder Head Group | 1 |
7c7901 Engine Ar-Primary
| 1W***78 | Gear Group-Front; Gear Gp-Front Idler | 1 |
| 1W***57 | Pump Group-Engine Oil | 1 |
| 2W***70 | Lines Group-Engine Oil | 1 |
7w6212 Flywheel Gp
| 7W***12 | Flywheel Group | 1 |
1w7878 Gear Gp-Front
| 1W***78 | Gear Group-Front; Gear Gp-Front Idler | 1 |
9y5003 Gear Gp-Front Idler
| 9Y***03 | Gear Group-Front; Gear Gp-Front Idler | 1 |
7c3827 Housing Gp-Front Engine
| 7C***27 | Housing Group-Front; Housing Gp-Front Engine | 1 |
7w6277 Lifting Gp-Engine
| 06***43 | Plate-Front | 1 |
| 0T***03 | Bolt Bracket To Starting Engine Fuel Tank | 2 |
| 5B***08 | Bolt-To Front Lifting Plate Thru | 2 |
7w1516 Mounting Gp-Engine
| 7W***16 | Mounting Group-Engine | 1 |
7c6073 Pan Gp-Oil
| 7C***73 | Pan Group-Oil | 1 |
7w2511 Rod & Piston Gp
| 7W***11 | Piston & Rod Group; Rod & Piston Gp | 1 |
7c3736 Pulley Gp-Crankshaft
| 7C***36 | Pulley Group-Crankshaft | 1 |
7w6204 Valve Mechanism Gp
| 7W***04 | Valve Mechanism Group | 1 |
Brakes And Drive Axle
9r5230 Axle As-Drive-Part 1 Of 2
| 9R***30 | Axle As-Drive | 1 |
9r5230 Axle As-Drive-Part 2 Of 2
| 9R***30 | Axle As-Drive | 1 |
9r6693 Axle As-Rear Drive-Part 2 Of 2
| 9R***93 | Axle As-Rear Drive | 1 |
9r6693 Axle As-Rear Drive-Part 1 Of 2
| 9R***93 | Axle As-Rear Drive | 1 |
9r1056 Axle Gp-Drive
| 9R***56 | Axle Group-Drive | 1 |
9r5434 Brake Gp-Parking
| 9R***34 | Brake Group-Parking | 1 |
9r6508 Brake Gp-Parking
| 9R***08 | Brake Group-Parking | 1 |
9r0169 Control Gp-Differential Lock
| 9R***69 | Control Group-Differential Lock | 1 |
9r0318 Control Gp-Parking Brake
| 9R***18 | Control Group-Parking Brake | 1 |
9r6459 Control Gp-Parking Brake
| 9R***59 | Control Group-Parking Brake | 1 |
9r0030 Control Gp-Foot Brake
| 9R***30 | Control Group-Service Brake | 1 |
9r1233 Guard Gp-Drive Shaft
| 9R***33 | Guard Group-Drive Shaft; -All Wheel Drive-All Wheel Steer | 1 |
9r1231 Shaft Gp-Front Drive
| 02***87 | Fitting-Grease; (Universal Joint) | 1 |
| 05***13 | Spider & Bearing Group | 2 |
| 10***26 | Bolt; (M24x19.1-mm) | 8 |
9r033 Drive Shaft Gp
| 9R***33 | Shaft Group-Main Drive | 1 |
Chassis
9r0782 Battery Box Gp
| 9R***82 | Battery Box Group | 1 |
9r0900 Bumper Gp-Front
| 9R***00 | Bumper Group-Front | 1 |
9r0012 Counterweight Gp
| 9R***12 | Counterweight Group | 1 |
9r0704 Counterweight Gp
| 9R***04 | Counterweight Group | 1 |
9r2657 Cover Gp-Fender
| 9R***57 | Cover Group-Fender | 1 |
9r2714 Door Gp-Side-Lh
| 9R***14 | Door Group-Side-Lh | 1 |
9r2713 Door Gp-Side-Rh
| 9R***13 | Door Group-Side-Rh | 1 |
9r2564 Enclosure Gp-Engine
| 9R***64 | Enclosure Group-Engine | 1 |
9r0364 Extension Gp-Fender
| 9R***64 | Extension Group-Fender | 1 |
9r2715 Fender Gp-Front
| 9R***15 | Fender Group-Front | 1 |
9r1105 Frame Gp-Loader
| 9R***05 | Frame Group-Loader | 1 |
9r1541 Frame Gp-Sliding
| 9R***41 | Frame Group-Sliding | 1 |
9r1715 Guard Gp-Hose
| 9R***15 | Guard Group-Hose | 1 |
9r0015 Guard & Hood Gp
| 9R***15 | Hood & Guard Group | 1 |
9r2712 Hood Gp
| 9R***12 | Hood Group | 1 |
Cooling
7c2240 Cooler Gp-Hydraulic Oil
| 7C***40 | Cooler Group-Hydraulic Oil | 1 |
2w9715 Fan Gp-Suction
| 2W***15 | Fan Group-Suction | 1 |
7w6224 Lines Gp-Water
| 7W***24 | Lines Group-Water | 1 |
2w9709 Mounting Gp-Radiator & Transmission Cooler
| 2W***09 | Mounting Group-Rad & Tmsn Cooler | 1 |
7w6225 Pump Gp-Water
| 7W***25 | Pump Group-Water | 1 |
9y5837 Radiator Gp
| 9Y***37 | Radiator Group | 1 |
Front Loader
9r0035 Arm Gp-Lift
| 9R***35 | Arm Group-Lift | 1 |
9r0036 Brace Gp-Lift Cylinder
| 9R***36 | Brace Group-Lift Cylinder | 1 |
9r6090 Bucket Ar-Multi-Purpose-Loader
| 9R***07 | Lines Group-Hydraulic; Lines Gp-Hydraulic-Multi-Purpose Bucket. | 1 |
| 9R***93 | Control Group-Bucket; Control Gp-Bucket-Valve Multi-Purpose | 1 |
| 9R***90 | Bucket Ar-Multipurpose; Bucket Arrangement-Multi-Purpose | 1 |
9r6089 Bucket Ar-Multi-Purpose-Loader
| 9R***07 | Lines Group-Hydraulic; Lines Gp-Hydraulic-Multi-Purpose Bucket. | 1 |
| 9R***93 | Control Group-Bucket; Control Gp-Bucket-Valve Multi-Purpose | 1 |
| 9R***89 | Bucket Ar-Multipurpose; Bucket Arrangement-Multi-Purpose | 1 |
9r6093 Bucket Ar-Multi-Purpose-Loader
| 9R***68 | Mounting Group-Bucket Cylinder; -Multipurpose Bucket | 1 |
| 9R***99 | Fork Group | 1 |
| 9R***88 | Lines Group-Bucket; Lines Gp-Multi-Purpose Bucket | 1 |
9r6092 Bucket Ar-Multi-Purpose-Loader
| 9R***68 | Mounting Group-Bucket Cylinder; -Multipurpose Bucket | 1 |
| 9R***87 | Bucket Group-Multipurpose; Bucket Gp-Multi-Purpose | 1 |
| 9R***88 | Lines Group-Bucket; Lines Gp-Multi-Purpose Bucket | 1 |
9r5202 Bucket As-General Purpose
| 9R***02 | Bucket As | 1 |
9r5787 Bucket Gp-Multi-Purpose
| 9R***87 | Bucket Group-Multipurpose; Bucket Gp-Multi-Purpose | 1 |
9r5789 Bucket Gp-Multi-Purpose
| 9R***89 | Bucket Group-Multipurpose; Bucket Gp-Multi-Purpose | 1 |
9r5320 Edge Gp-Cutting
| 9R***20 | Edge Group-Cutting | 1 |
9r5416 Fork Ar
| 9R***99 | Fork Group | 1 |
| 9R***16 | Fork Ar | 1 |
| 9R***30 | Mounting Group-Fork | 1 |
9r5399 Fork Gp
| 9R***99 | Fork Group | 1 |
9r5137 Linkage Gp-Bucket-Front
| 9R***37 | Linkage Group-Bucket | 1 |
9r1807 Lock Gp-Transport
| 9R***07 | Lock Group-Transport | 1 |
9r6851 Lock Gp-Transport
| 9R***51 | Lock Group-Transport | 1 |
9r5430 Mounting Gp-Fork
| 9R***30 | Mounting Group-Fork | 1 |
Fuel System And Governor
9r0011 Control Gp-Governor & Accelerator
| 9R***11 | Control Group-Gov & Accelerator | 1 |
7w7627 Filter Gp-Fuel
| 7W***27 | Filter Group-Fuel | 1 |
9r0019 Lines Gp-Fuel
| 9R***19 | Lines Group-Fuel | 1 |
7w6228 Lines Gp-Fuel Filter
| 7W***28 | Lines Group-Fuel Filter | 1 |
7w6230 Lines Gp-Fuel Injection
| 7W***30 | Lines Group-Fuel Injection | 1 |
7c2799 Pump Gp-Fuel
| 7C***99 | Pump Group-Fuel | 1 |
7c9634 Pump Gp-Fuel Injection
| 7C***34 | Pump Group-Fuel Injection | 1 |
9y5809 Pump Gp-Fuel Injection
| 03***65 | Dowel | 1 |
| 03***57 | Stud | 3 |
| 03***08 | Gear | 1 |
7w9458 Separator Gp-Water
| 7W***58 | Separator Group-Water | 1 |
9r0025 Tank Gp-Fuel
| 9R***25 | Tank Group-Fuel | 1 |
Hydraulics
9t3877 Valve Gp-Pressure & Flow Compensator
| 9T***77 | Valve Group-Press & Flow Cmpnstr; (Pressure, Flow Compensator) | 1 |
9r1893 Control Gp-Multipurpose Bucket Valve
| 9R***93 | Control Group-Bucket; Control Gp-Bucket-Valve Multi-Purpose | 1 |
9r0216 Control Gp-Valve-Mounting & Pedal-L.H.
| 9R***16 | Control Group-Valve; Control Gp-Valve-Mounting & Pedal-L.H | 1 |
9r2113 Control Gp-Valve-Mounting & Pedal-R.H.
| 9R***13 | Control Group-Valve; Control Gp-Valve-Mounting & Pedal-R.H | 1 |
9t1919 Conversion Gp-6 To 8
| 9T***19 | Conversion Group | 1 |
9t1917 Conversion Gp-2 To 3
| 9T***17 | Conversion Group; Conversion-Field-2 To 3 Valve | 1 |
9t1918 Conversion Gp-6 To 7
| 9T***18 | Conversion Group; Conversion-Field-6 To 7 Valve | 1 |
9t1920 Conversion Gp-7 To 8
| 9T***20 | Conversion Group; Conversion-Field-7 To 8 Valve | 1 |
9r0069 Coupling Gp-Pump
| 9R***69 | Coupling Group-Pump | 1 |
9t5219 Cylinder Gp-Boom
| 9T***19 | Cylinder Group-Boom | 1 |
9t4006 Cylinder Gp-Multipurpose Bucket-2 Required
| 9T***06 | Cylinder Group-Bucket; Cylinder Gp-Multi-Purpose Bucket | 1 |
9t7288 Cylinder Gp-Backhoe Bucket (Chg 05)
| 9T***88 | Cylinder Group-Bucket | 1 |
9t7288 Cylinder Gp-Backhoe Bucket (Chg 00)
| 9T***88 | Cylinder Group-Bucket | 1 |
9t4809 Cylinder Gp-Extendable Stick
| 9T***09 | Cylinder Group-Extendable Stick | 1 |
9t0415 Cylinder Gp-Loader Lift-2 Required
| 9T***15 | Cylinder Group-Lift | 1 |
9t0527 Cylinder Gp-Stabilizer-Sideshift
| 9T***27 | Cylinder Group-Stabilizer | 1 |
9t9709 Cylinder Gp-Stabilizer-Sideshift
| 9T***09 | Cylinder Group-Stabilizer | 1 |
9t7291 Cylinder Gp-Stick
| 9T***91 | Cylinder Group-Stick | 1 |
9t0421 Cylinder Gp-Swing-L.H.
| 9T***21 | Cylinder Group-Swing | 1 |
9t0420 Cylinder Gp-Swing-R.H.
| 9T***20 | Cylinder Group-Swing | 1 |
9t5371 Cylinder Gp-Tilt
| 9T***71 | Cylinder Group-Tilt | 1 |
9r2880 Guard Gp-Hose Lines
| 9R***80 | Guard Group-Lines | 1 |
Hydraulic Arrangements
| 9R***07 | Lines Group-Hydraulic; Lines Gp-Hydraulic-Multi-Purpose Bucket. | 1 |
| 9R***16 | Control Group-Valve; Control Gp-Valve-Mounting & Pedal-L.H | 1 |
| 9R***93 | Control Group-Bucket; Control Gp-Bucket-Valve Multi-Purpose | 1 |
9r0556 Kickout & Positioner Gp
| 9R***56 | Kickout & Positioner Group | 1 |
9t8656 Kit-Service-Control Valve
| 6E***83 | Stem As-Stick | 1 |
| 6E***84 | Stem As-Boom | 1 |
| 9T***56 | Kit-Control Valve Service | 1 |
9r6704 Lines Gp-Boom Cylinder-Part 5 Of 5 (Cosa)
| 9R***04 | Lines Group-Boom Cylinder | 1 |
9r6704 Lines Gp-Boom Cylinder-Part 1 Of 5 (Cosa)
| 9R***04 | Lines Group-Boom Cylinder | 1 |
9r6704 Lines Gp-Boom Cylinder-Part 3 Of 5 (Cosa)
| 9R***04 | Lines Group-Boom Cylinder | 1 |
9r6704 Lines Gp-Boom Cylinder-Part 4 Of 5 (Cosa)
| 9R***04 | Lines Group-Boom Cylinder | 1 |
9r6704 Lines Gp-Boom Cylinder-Part 2 Of 5 (Cosa)
| 9R***04 | Lines Group-Boom Cylinder | 1 |
9r0053 Lines Gp-Boom Cylinder
| 9R***53 | Lines Group-Boom Cylinder | 1 |
9r5788 Lines Gp-Multi-Purpose Bucket
| 9R***88 | Lines Group-Bucket; Lines Gp-Multi-Purpose Bucket | 1 |
9r6856 Lines Gp-Bucket Cylinder
| 9R***56 | Lines Group-Bucket Cylinder | 1 |
9r0054 Lines Gp-Hoe Bucket Cylinder
| 9R***54 | Lines Group-Bucket Cylinder | 1 |
9r3996 Lines Gp-Check Valve
| 9R***96 | Lines Group-Check Valve | 1 |
9r2962 Lines Gp-Cylinder
| 9R***62 | Lines Group-Cylinder | 1 |
9r1563 Lines Gp-Hydraulic-3 Circuit-Part 1 Of 2
| 9R***63 | Lines Group-Hydraulic | 1 |
9r7019 Lines Gp-Hydraulic-3 Circuit-Part 1 Of 2
| 9R***19 | Lines Group-Hydraulic | 1 |
9r1563 Lines Gp-Hydraulic-3 Circuit-Part 2 Of 2
| 9R***63 | Lines Group-Hydraulic | 1 |
9r0207 Lines Gp-Hydraulic-Part 2 Of 2
| 9R***07 | Lines Group-Hydraulic; Lines Gp-Hydraulic-Multi-Purpose Bucket. | 1 |
9r0207 Lines Gp-Hydraulic-Part 1 Of 2
| 9R***07 | Lines Group-Hydraulic; Lines Gp-Hydraulic-Multi-Purpose Bucket. | 1 |
9r7019 Lines Gp-Hydraulic-3 Circuit-Part 2 Of 2
| 9R***19 | Lines Group-Hydraulic | 1 |
9r3330 Lines Gp-Hydraulic Oil Cooler
| 9R***30 | Lines Group-Hydraulic Oil Cooler | 1 |
9r3334 Lines Gp-Pump-Front Hydraulic-Part 3 Of 3
| 9R***34 | Lines Group-Hydraulic Pump | 1 |
9r3334 Lines Gp-Pump-Front Hydraulic-Part 1 Of 3
| 9R***34 | Lines Group-Hydraulic Pump | 1 |
9r3334 Lines Gp-Pump-Front Hydraulic-Part 2 Of 3
| 9R***34 | Lines Group-Hydraulic Pump | 1 |
9r0055 Lines Gp-Lift Cylinder
| 9R***55 | Lines Group-Lift Cylinder | 1 |
9r6691 Lines Gp-Lift Cylinder
| 9R***91 | Lines Group-Lift Cylinder | 1 |
9r6923 Lines Gp-Shutoff (Tuv)
| 9R***23 | Lines Group-Shutoff; Lines Gp-Shutoff (Tuv) | 1 |
9r1562 Lines Gp-Sideshift Lock
| 9R***62 | Lines Group-Sideshift Lock | 1 |
9r7028 Lines Gp-Sideshift Lock
| 9R***28 | Lines Group-Sideshift Lock | 1 |
9r1557 Lines Gp-Stabilizer-Hydraulic
| 9R***57 | Lines Group-Stabilizer | 1 |
9r1557 Lines Gp-Stablizer-Hydraulic
| 9R***57 | Lines Group-Stabilizer | 1 |
9r1561 Lines Gp-Extendable Stick-Part 2 Of 2
| 9R***61 | Lines Group-Stick | 1 |
9r1561 Lines Gp-Extendable Stick-Part 1 Of 2
| 9R***61 | Lines Group-Stick | 1 |
9r6857 Lines Gp-Extended Stick-Part 1 Of 2
| 9R***57 | Lines Group-Stick | 1 |
9r6857 Lines Gp-Extended Stick-Part 2 Of 2
| 9R***57 | Lines Group-Stick | 1 |
9r6716 Lines Gp-Stick-Hydraulic Lock (Cosa)
| 9R***16 | Lines Group-Stick | 1 |
9r0058 Lines Gp-Stick
| 9R***58 | Lines Group-Stick | 1 |
9r1560 Lines Gp-Swing Cylinder
| 9R***60 | Lines Group-Swing Cylinder | 1 |
9r0059 Lines Gp-Tilt Cylinder
| 9R***59 | Lines Group-Tilt Cylinder | 1 |
9r0747 Lines Gp-Valve-Hydraulic
| 9R***47 | Lines Group-Valve | 1 |
Lock Arrangements
| 3D***24 | O-Ring - For Oil Drain & Level Plug (Items 3 & 7) | 1 |
| 9R***16 | Control Group-Valve; Control Gp-Valve-Mounting & Pedal-L.H | 1 |
| 9R***13 | Control Group-Valve; Control Gp-Valve-Mounting & Pedal-R.H | 1 |
9r4668 Mounting Gp-Cylinder
| 9R***68 | Mounting Group-Bucket Cylinder; -Multipurpose Bucket | 1 |
9r0421 Pedal Gp-Lock-L.H.
| 9R***21 | Pedal & Lock Group-Lh | 1 |
9r0459 Pedal Gp-Lock R.H.
| 9R***59 | Pedal & Lock Group-Rh | 1 |
9t4833 Pump Gp-Piston Slipper*R
| 9T***33 | Pump Group-Piston | 1 |
9r0064 Tank & Filter Gp-Hydraulic
| 9R***64 | Tank & Filter Group | 1 |
9t8418 Valve Gp-7
| 9T***18 | Valve Group; Valve Gp-7 Circuit | 1 |
9t9048 Valve Gp-7
| 9T***48 | Valve Group; Valve Gp-7 Bank | 1 |
9t6403 Valve Gp-Swing Control
| 9T***03 | Valve Group; (Swing Control) | 1 |
9t9049 Valve Gp-8
| 9T***49 | Valve Group; Valve Gp-8 Bank | 1 |
9t8417 Valve Gp-6
| 9T***17 | Valve Group; Valve Gp-6 | 1 |
9t8419 Valve Gp-8
| 9T***19 | Valve Group; Valve-8 Circuits | 1 |
9t9047 Valve Gp-6
| 9T***47 | Valve Group; Valve Gp-6 | 1 |
9t7933 Valve Gp-Swing Control
| 9T***33 | Valve Group; (Swing Control) | 1 |
9t7938 Valve Gp-6
| 9T***38 | Valve Group-Bank | 1 |
9t7939 Valve Gp-7
| 9T***39 | Valve Group-Bank | 1 |
9t7940 Valve Gp-8
| 9T***40 | Valve Group-Bank | 1 |
9t7293 Valve Gp-Loader Control-2 Circuit
| 9T***93 | Valve Group-Bank | 1 |
9t7294 Valve Gp-Loader Control-3 Circuit
| 9T***94 | Valve Group-Bank; Valve Gp-Control-3 Circuit | 1 |
9t7936 Valve Gp-Pilot Operated
| 9T***36 | Valve Group-Check | 1 |
9t0718 Valve Gp-Relief-Crossover
| 9T***18 | Valve Group-Check & Relief; -Crossover | 1 |
9t1700 Valve Gp-Pressure & Flow Compensator
| 9T***00 | Valve Group-Compensator | 1 |
9t4468 Valve Gp-Extendable Stick/Auxiliary Control
| 9T***68 | Valve Group-Control | 1 |
9t7292 Valve Gp-Control
| 9T***92 | Valve Group-Control; (Tilt) | 1 |
9t0626 Valve Gp-Control
| 9T***26 | Valve Group-Control; (Clam) | 1 |
9t7171 Valve Gp-Bucket Control
| 9T***71 | Valve Group-Control; (Bucket Control) | 1 |
9t7937 Valve Gp-R.H. & L.H. Stabilizer Control
| 9T***37 | Valve Group-Control; (Stabilizer Control) | 1 |
9t6401 Valve Gp-Control
| 9T***01 | Valve Group-Control; (Lift) | 1 |
9t7935 Valve Gp-Stick Control
| 9T***35 | Valve Group-Control | 1 |
9t7934 Valve Gp-Boom Control
| 9T***34 | Valve Group-Control | 1 |
9t9046 Valve Gp-Boom Control
| 9T***46 | Valve Group-Control; (Boom) | 1 |
9t0715 Valve Gp-Control
| 9T***15 | Valve Group-Control | 1 |
9t9927 Valve Gp-Manual (Tuv)
| 9T***27 | Valve Group-Manual | 1 |
9t0633 Valve Gp
| 9T***33 | Valve Group-Priority Flow Divider; (Priority) | 1 |
9t0634 Valve Gp-Relief-Return Restrictor
| 9T***34 | Valve Group-Relief; (Relief) | 1 |
9t4752 Valve Gp-Relief-Swing Cylinder
| 9T***52 | Valve Group-Relief | 1 |
9t8482 Valve Gp-Relief-Direct Operated
| 9T***82 | Valve Group-Relief | 1 |
Intake And Exhaust System
2w9771 Air Cleaner Gp
| 2W***71 | Air Cleaner Group | 1 |
7w2691 Air Cleaner Gp
| 7W***91 | Air Cleaner Group | 1 |
9y5841 Lines Gp-Air
| 9Y***41 | Lines Group-Air | 1 |
7w4476 Manifold Gp-Exhaust
| 7W***76 | Manifold Group-Exhaust | 1 |
7w4477 Manifold Gp-Inlet
| 7W***77 | Manifold Group-Inlet | 1 |
9y0253 Muffler Gp
| 9Y***53 | Muffler Group | 1 |
7c3465 Turbocharger Gp
| 7C***65 | Turbocharger Group | 1 |
7c3446 Turbocharger Gp
| 7C***46 | Turbocharger Group | 1 |
Lubrication System
7c2905 Oil Cooler & Filter Base Gp
| 7C***05 | Cooler Group-Filter Base & Eng Oil | 1 |
7w6220 Filler Gp-Engine Oil
| 7W***20 | Filler Group-Oil; Filler Gp-Engine Oil | 1 |
7w6218 Fumes Disposal Gp
| 7W***18 | Fumes Disposal Group | 1 |
7w6215 Gauge Gp-Oil Level (Dipstick)
| 7W***15 | Gauge Group-Oil Level (Dipstick) | 1 |
7w6215 Gauge Gp-Oil Level
| 7W***15 | Gauge Group-Oil Level (Dipstick) | 1 |
7e1409 Lines Gp-Engine Oil
| 7E***09 | Lines Group-Engine Oil | 1 |
2w7670 Lines Gp-Engine Oil
| 2W***70 | Lines Group-Engine Oil | 1 |
1w8357 Pump Gp-Engine Oil
| 1W***57 | Pump Group-Engine Oil | 1 |
Operator Platform
9r6881 Bar Gp-Latch
| 9R***81 | Bar Group-Latch | 1 |
9r0710 Platform & Cab Ar
| 9R***73 | Wiper Group | 1 |
| 9R***10 | Cab & Platform Ar; Platform & Cab Ar | 1 |
| 9R***73 | Visor Group-Cab | 1 |
9r1015 Platform & Cab Ar-Enclosed Cab
| 9R***18 | Lighting Group-Roading | 1 |
| 9R***73 | Wiper Group | 1 |
| 9R***15 | Cab & Platform Ar; Platform & Cab Ar | 1 |
9r2099 Cab Ar
| 9R***23 | Lines Group-Heater | 1 |
| 9R***10 | Cab & Platform Ar; Platform & Cab Ar | 1 |
| 9R***44 | Heater Group-Cab | 1 |
9r1014 Cab Ar-Enclosed
| 9R***23 | Lines Group-Heater | 1 |
| 9R***14 | Cab Ar | 1 |
| 9R***15 | Cab & Platform Ar; Platform & Cab Ar | 1 |
9r5649 Cab Gp-Part 3 Of 3
| 9R***49 | Cab Group; Cab Gp-Cosa | 1 |
9r5645 Cab Gp-Part 3 Of 3
| 9R***45 | Cab Group | 1 |
9r5649 Cab Gp-Part 2 Of 3
| 9R***49 | Cab Group; Cab Gp-Cosa | 1 |
9r5649 Cab Gp-Part 1 Of 3
| 9R***49 | Cab Group; Cab Gp-Cosa | 1 |
9r5645 Cab Gp-Part 2 Of 3
| 9R***45 | Cab Group | 1 |
9r5645 Cab Gp-Part 1 Of 3
| 9R***45 | Cab Group | 1 |
9r1074 Console Gp-Front Cab
| 9R***74 | Console Group-Front; Console Gp-Front Cab | 1 |
9r0013 Console Gp-Front-Rops
| 9R***13 | Console Group-Front-Rops | 1 |
9r0482 Console Gp-Rear
| 9R***82 | Console Group-Rear | 1 |
9r0547 Console Gp-Instrument
| 9R***47 | Console Group-Side | 1 |
9r2815 Control Gp-Backhoe
| 9R***15 | Control Group-Excavator | 1 |
9r0044 Control Gp-Hydraulic Hand-Loader
| 9R***44 | Control Group-Hydraulic Hand | 1 |
9r2115 Control Gp-Hydraulic Hand
| 9R***15 | Control Group-Hydraulic Hand | 1 |
9r0031 Control Gp-Steering & Shuttle
| 9R***31 | Control Group-Steering & Tmsn | 1 |
9r0979 Control Gp-Transmission Hand
| 9R***79 | Control Group-Transmission | 1 |
9r1850 Conversion Gp-Non Rops/Cab
| 9R***50 | Conversion Group-Non-Rops | 1 |
9r2461 Cushion Gp-Arm
| 9R***61 | Cushion Group-Arm | 1 |
9r5651 Door Gp-Cab L.H.-Part 2 Of 2
| 9R***51 | Door Group-Cab | 1 |
9r5650 Door Gp-Cab R.H.-Part 1 Of 2
| 9R***50 | Door Group-Cab | 1 |
9r5651 Door Gp-Cab L.H.-Part 1 Of 2
| 9R***51 | Door Group-Cab | 1 |
9r5650 Door Gp-Cab R.H.-Part 2 Of 2
| 9R***50 | Door Group-Cab | 1 |
9r5542 Door Gp-L.H.
| 9R***42 | Door Group-Lh; -Lh | 1 |
9r5543 Door Gp-R.H.
| 9R***43 | Door Group-Rh; -Rh | 1 |
5d2855 Fan As-Defroster
| 5D***55 | Fan As-Defrosting | 1 |
9r2571 Fan Gp-Circulating
| 9R***71 | Fan Group-Circulating | 1 |
9r2608 Floormat Gp
| 9R***08 | Floor Mat Group; Floormat Gp | 1 |
9r0722 Floorplate Gp-Sideshift
| 9R***22 | Floorplate Group | 1 |
9r5859 Floorplate Gp-Sideshift
| 9R***59 | Floorplate Group; Floorplate Gp-Sideshift | 1 |
6t7884 Heater Gp-Part 2 Of 2
| 6T***84 | Heater Group-Cab | 1 |
6t7884 Heater Gp-Part 1 Of 2
| 6T***84 | Heater Group-Cab | 1 |
9r1044 Heater Gp-Cab
| 9R***44 | Heater Group-Cab | 1 |
9r7930 Instrument Gp
| 9R***30 | Instrument Group | 1 |
9r0017 Instrument Gp
| 9R***17 | Instrument Group | 1 |
9r6507 Kit-Rail Conversion (Slide)
| 9R***07 | Kit-Rail Conversion; Kit-Conversion-Rail (Slide) | 1 |
9r6489 Kit-Rail Conversion (Slide)
| 9R***89 | Kit-Rail Conversion; Kit-Conversion-Rail (Slide) | 1 |
9r6494 Kit-Rail Conversion (Slide)
| 9R***94 | Kit-Rail Conversion; Kit-Conversion-Rail (Slide) | 1 |
9r6506 Kit-Rail Conversion (Slide)
| 9R***06 | Kit-Rail Conversion; Kit-Conversion-Rail (Slide) | 1 |
9r6800 Kit-Relay-Side Console
| 3S***93 | Strap-Cable-To Tie Harnesses Together | 4 |
| 5P***23 | Wire 4.55m (Br/Bk2); (1-Conn. Ether Starting System Sending Unit / 1-Conn. Solenoid Valve Ether Start System) | 0 |
| 7X***02 | Switch As-Magnetic | 1 |
9r0223 Lines Gp-Heater
| 9R***23 | Lines Group-Heater | 1 |
9r1806 Lock Gp-Hydraulic Hand Control
| 9R***06 | Lock Group-Hydraulic Hand Control | 1 |
9r6144 Mirror Gp-Exterior-Cab
| 9R***44 | Mirror Group-Rear View | 1 |
9r6059 Mirror Gp-Rear View-Canopy
| 9R***59 | Mirror Group-Rear View | 1 |
9r5158 Mirror Gp-Rear View-Cab
| 9R***58 | Mirror Group-Rear View | 1 |
9r1574 Mirror Gp
| 9R***74 | Mirror Group-Rear View | 1 |
6v6561 Wiper Pivot Gp-Sensor
| 6V***61 | Pivot Group-Wiper Arm; (Wiper Arm) | 1 |
9r5648 Platform Gp-Cab
| 9R***48 | Platform Group-Cab | 1 |
9r5730 Platform Gp-Cab
| 9R***30 | Platform Group-Cab | 1 |
9r7115 Platform Gp-Sideshift
| 9R***15 | Platform Group-Operator; Platform Gp-Sideshift | 1 |
9r2721 Platform & Rollover Ar
| 9R***18 | Lighting Group-Roading | 1 |
| 9R***23 | Rops Group; Rops Gp-Protection | 1 |
| 9R***74 | Mirror Group-Rear View | 1 |
9r0767 Rollover Ar-Canopy
| 9R***13 | Console Group-Front-Rops | 1 |
| 9R***67 | Rops Ar | 1 |
| 9R***53 | Seat Group-Suspension; -Vinyl | 1 |
9r0023 Rops Gp
| 9R***23 | Rops Group; Rops Gp-Protection | 1 |
9r0024 Seat Gp-Reversible
| 9R***24 | Seat Group-Reversible | 1 |
9r6486 Seat Gp-Static
| 9R***86 | Seat Group-Static | 1 |
9r2652 Seat Gp-Suspension-Cloth-With Armrest
| 9R***52 | Seat Group-Suspension; -Cloth | 1 |
9r6488 Seat Gp-Suspension-Cloth
| 9R***88 | Seat Group-Suspension | 1 |
9r6487 Seat Gp-Suspension-Vinyl
| 9R***87 | Seat Group-Suspension | 1 |
9r2653 Seat Gp-Suspension
| 9R***53 | Seat Group-Suspension; -Vinyl | 1 |
9r2390 Speedometer Gp
| 9R***90 | Speedometer Group | 1 |
9r0675 Tachometer Gp-Electric
| 9R***75 | Tachometer Group-Electric | 1 |
9r1573 Visor Gp-Cab
| 9R***73 | Visor Group-Cab | 1 |
9r2100 Washer Gp-Windshield
| 9R***00 | Washer Group-Windshield | 1 |
9r0673 Wiper Gp-Part 2 Of 2
| 9R***73 | Wiper Group | 1 |
9r0673 Wiper Gp-Part 1 Of 2
| 9R***73 | Wiper Group | 1 |
6t6530 Wiper Gp-Windshield
| 6T***30 | Wiper Group-Windshield | 1 |
9r1172 Wiring Gp-Wiper
| 9R***72 | Wiring Group-Wiper | 1 |
Service Equipment And Supplies
8c3989 Name Plates & Transfers
| 1P***07 | Film-Symbol; 2 On Bottom Of Upper Frame Below Engine. 2 On Front Of Upper Frame Above Boom Articulation | 2 |
| 2H***57 | Tag-Antifreeze | 1 |
| 5P***10 | Film-Caution; Below Heat Start Switch On Dash | 1 |
Starting And Electrical System
2w9774 Alternator Gp
| 2W***74 | Alternator Group-Charging | 1 |
7t2876 Alternator Gp-Charging
| 7T***76 | Alternator Group-Charging | 1 |
9r0028 Battery & Wiring Gp-Part 2 Of 3
| 9R***28 | Battery & Wiring Group | 1 |
9r0028 Battery & Wiring Gp-Part 1 Of 3
| 9R***28 | Battery & Wiring Group | 1 |
9r0028 Battery & Wiring Gp-Part 3 Of 3
| 9R***28 | Battery & Wiring Group | 1 |
9r1195 Battery Gp-Heavy Duty
| 9R***95 | Battery Group | 1 |
9r1216 Battery Gp-Heavy Duty
| 9R***16 | Battery Group | 1 |
9r0016 Horn Gp-Electric
| 9R***16 | Horn Group-Electric | 1 |
7t0618 Lamp Gp
| 7T***18 | Lamp Group | 1 |
7t7103 Lamp Gp-Head & Turn-L.H. (Right Dip)
| 7T***03 | Lamp Group-Head & Turn | 1 |
7t7104 Lamp Gp-Head & Turn-R.H. (Right Dip)
| 7T***04 | Lamp Group-Head & Turn | 1 |
7x6108 Lamp Gp-Head & Turn-L.H. (Left Dip)
| 7X***08 | Lamp Group-Head & Turn; -Lh | 1 |
7x6109 Lamp Gp-Head & Turn-R.H. (Left Dip)
| 7X***09 | Lamp Group-Head & Turn; -Rh | 1 |
9r1426 Lighting Gp-Front Work
| 9R***26 | Lighting Group-Front; Lighting Gp-Front Work | 1 |
9r3407 Lighting Gp-Rear Work
| 9R***07 | Lighting Group-Rear | 1 |
9r6510 Lighting Gp-Roading (L.H. Dip)
| 7X***08 | Lamp Group-Head & Turn; -Lh | 1 |
| 7X***09 | Lamp Group-Head & Turn; -Rh | 1 |
| 9R***10 | Lighting Group-Roading; -Lh Dip | 1 |
9r0018 Lighting Gp-Roading-Canopy
| 9R***18 | Lighting Group-Roading | 1 |
9r1174 Lighting Gp-Roading
| 9R***74 | Lighting Group-Roading | 1 |
9r1215 Lighting Gp-Warning
| 9R***15 | Lighting Group-Warning | 1 |
9r6474 Starting Aid-Ether
| 9R***74 | Starting Aid Group-Ether | 1 |
7x1361 Starting Motor Gp-Electric
| 7X***61 | Starting Motor Group-Electric | 1 |
7n8000 Switch As
| 7N***00 | Switch As-Toggle; (Warning Light) | 1 |
7n8001 Switch As
| 7N***01 | Switch As-Toggle; -Prelubrication Override-Crank Override | 1 |
9g7641 Switch Gp
| 9G***41 | Switch Group-Start; -Engine, Key-Vims Service | 1 |
9r2174 Warning Gp-Backup
| 9R***74 | Warning Group-Backup | 1 |
9r2818 Wiring & Lighting Gp
| 9R***18 | Wiring & Lighting Group; Wiring Gp-Lighting & Roading | 1 |
Steering
9r6206 Axle Ar-Front Steer
| 9R***10 | Axle Group-Front | 1 |
| 9R***47 | Steering Group-Hydraulic | 1 |
| 9R***43 | Wheel & Tire Group-Front; -Front | 1 |
9r4048 Axle As-Drive & Steer-Part 1 Of 3
| 9R***48 | Axle As-Drive & Steering | 1 |
9r4048 Axle As-Drive & Steer-Part 3 Of 3
| 9R***48 | Axle As-Drive & Steering | 1 |
9r4048 Axle As-Drive & Steer-Part 2 Of 3
| 9R***48 | Axle As-Drive & Steering | 1 |
9r4047 Axle Gp-Drive & Steer
| 9R***25 | Bearing - Sleeve | 2 |
| 9R***47 | Axle Group-Drive & Steering-Front | 1 |
| 9R***48 | Axle As-Drive & Steering | 1 |
9r0010 Axle Gp-Front
| 9R***10 | Axle Group-Front | 1 |
9t1493 Cylinder Gp-Steering
| 9T***93 | Cylinder Group-Steering | 1 |
9r6261 Lines Gp-Steering-Part 2 Of 2
| 9R***61 | Lines Group-Steering | 1 |
9r6229 Lines Gp-Steering-Front
| 9R***29 | Lines Group-Steering | 1 |
9r6261 Lines Gp-Steering-Part 1 Of 2
| 9R***61 | Lines Group-Steering | 1 |
4t6896 Pump Gp-Hand Metering
| 4T***96 | Pump Group-Metering | 1 |
9r2047 Steering Gp-Hydraulic
| 9R***47 | Steering Group-Hydraulic | 1 |
9r6203 Wheel & Tire Ar
| 9R***73 | Wheel & Tire Group-Rear | 1 |
| 9R***03 | Wheel & Tire Ar | 1 |
| 9R***78 | Wheel & Tire Group-Front | 1 |
9r6479 Wheel & Tire Gp-Front-L.H.
| 9R***79 | Wheel & Tire Group-Front; -Front, Lh | 1 |
9r6478 Wheel & Tire Gp-Front
| 9R***78 | Wheel & Tire Group-Front | 1 |
9r6480 Wheel & Tire Gp-Front-R.H.
| 9R***80 | Wheel & Tire Group-Front; -Front, Rh | 1 |
9r6174 Wheel & Tire Gp-Rear L.H.
| 9R***74 | Wheel & Tire Group-Rear; Wheel & Tire Gp-Rear-Lh | 1 |
9r6177 Wheel & Tire Gp-Rear R.H.
| 9R***77 | Wheel & Tire Group-Rear; Wheel & Tire Gp-Rear-Rh | 1 |
9r6173 Wheel & Tire Gp-Rear
| 5P***48 | Washer--Bracket To L.H. Support Rail | 16 |
| 6B***82 | Nut Cylinder Block To Head Assembly | 16 |
| 9R***73 | Wheel & Tire Group-Rear | 1 |
9r5243 Wheel & Tire Gp-Front
| 5P***48 | Washer--Bracket To L.H. Support Rail | 16 |
| 6B***82 | Nut Cylinder Block To Head Assembly | 16 |
| 9R***30 | Wheel & Tire Group-Front-Lh; -Front, Lh | 1 |
9r2730 Wheel & Tire Gp-Front-L.H.
| 9R***30 | Wheel & Tire Group-Front-Lh; -Front, Lh | 1 |
9r0983 Wiring Gp-Front Drive
| 9R***83 | Wiring Group-Front; Wiring Gp-Front Drive | 1 |
Transmission
9w1355 Drive Gp-Flexible
| 9W***55 | Drive Group-Flexible Coupling | 1 |
9r1040 Filler Gp-Power Train Oil
| 9R***40 | Filler Group-Power Train Oil | 1 |
9r0032 Lines Gp-Power Train Oil Cooler
| 9R***32 | Lines Group-Power Train Cooler | 1 |
9w8111 Mounting Gp-Transmission
| 9W***11 | Mounting Group-Transmission | 1 |
6t9519 Solenoid As
| 6T***19 | Solenoid As | 1 |
6y5385 Transmission Ar
| 6Y***98 | Transmission Group-Direct Drive; Transmission Gp | 1 |
| 6Y***85 | Transmission Ar | 1 |
| 8E***35 | Torque Converter As | 1 |
9w7920 Transmission Gp-Part 3 Of 3
| 9W***20 | Transmission Group; Transmission Gp-Direct Drive | 1 |
9w7920 Transmission Gp-Part 2 Of 3
| 9W***20 | Transmission Group; Transmission Gp-Direct Drive | 1 |
9w7920 Transmission Gp-Part 1 Of 3
| 9W***20 | Transmission Group; Transmission Gp-Direct Drive | 1 |
6y2598 Transmission Gp-Direct Drive-Part 4 Of 4
| 6Y***98 | Transmission Group-Direct Drive; Transmission Gp | 1 |
6y2598 Transmission Gp-Direct Drive-Part 1 Of 4
| 6Y***98 | Transmission Group-Direct Drive; Transmission Gp | 1 |
6y2598 Transmission Gp-Direct Drive-Part 2 Of 4
| 6Y***98 | Transmission Group-Direct Drive; Transmission Gp | 1 |
6y2598 Transmission Gp-Direct Drive-Part 3 Of 4
| 6Y***98 | Transmission Group-Direct Drive; Transmission Gp | 1 |
9w6500 Valve Gp-Transmission Control
| 9W***00 | Valve Group-Control | 1 |
6y7468 Valve Gp-Transmission Control
| 6Y***68 | Valve Group-Pressure Compensator; (1/8-27thd Hex-Countersunk) | 1 |
438 serial number reference
On 438-family backhoe loaders the PIN plate sits on the left side of the machine frame, above the boom/cylinder arm base near the cab mount. The plate stamps the full PIN: the first three characters are the letter/number prefix tying the unit to a model, series, and configuration, followed by a five-digit sequence number tracking build order within that prefix.
| Prefix | Identifies | Notes |
|---|---|---|
| 3DJ | 438 backhoe loader (original series, incl. Series II) | Base 438 model, built roughly 1988 to 1993. Fitted with the naturally aspirated Cat 4.236 diesel (about 77-83 hp), not a 3054-family engine. Series II covers the same 3DJ prefix rather than a separate code. Documented serial range starts at 00001 and continues into the low thousands under the same prefix; the engine spec plate reference changes partway through the range but the prefix and engine family stay the same. |
| 3KK | 438B backhoe loader | Fitted with the Cat 3054 diesel (4.4L/268 cu in, 4-cyl, about 84 hp). Documented serial range runs from the start of production up to roughly 02999. |
| 2DR | 438C backhoe loader, side-shift/parallel-lift configuration | Fitted with the Cat 3054 diesel, same body configuration as the 1TR prefix. Documented production run spans from 00001 up to roughly 03741, split across multiple manual blocks. Treat exact sub-range cutoffs as approximate. |
| 1TR | 438C backhoe loader, side-shift/parallel-lift configuration | Fitted with the Cat 3054 diesel, same body configuration as the 2DR prefix. Documented production run spans from 00001 up to roughly 01549, split across at least two manual blocks. Confirm exact cutoffs with dealer. |
| 1JR | 438C backhoe loader, side-shift single-tilt configuration (transitions to center-pivot single-tilt at the tail of the range) | Fitted with the Cat 3054 diesel. Side-shift single-tilt covers roughly 00001 through 01149; a short center-pivot single-tilt tail range follows around 01150-01155. |
| 9KN | 438C backhoe loader, center-pivot single-tilt configuration | Fitted with the Cat 3054 diesel. Documented production blocks run roughly 00001-01060 and 01200-01418. Confirm exact cutoffs with dealer. |
| BPN | 438D backhoe loader | Fitted with the Cat 3054 engine family. Production starts at 00001; documented manual block covers roughly 00476-00549. Confirm exact production span with dealer. |
| BPE | 438D backhoe loader | Fitted with the Cat 3054C diesel. Documented production run spans from 00001 up to roughly 00742, split across at least two manual blocks. |
Frequently asked questions
What engine does the Caterpillar 438 use?
The base 438 (Series II, serial prefix 3DJ) runs a naturally aspirated Cat 4.236 diesel, a 3.9 L (236 cu in) inline 4-cylinder rated about 77 net / 83 gross horsepower. Later 438B, 438C, and 438D models moved to the Cat 3054 engine family in naturally aspirated, turbocharged, and turbo direct-injection form - don't apply those engine specs to the original 438.
What is the operating weight of the Caterpillar 438?
Operating weight runs approximately 7,200 to 7,365 kg (15,840 to 16,240 lb) for the base 438 Series II, varying with 2WD vs 4WD axles, bucket selection, and stabilizer/backhoe configuration. Confirm the exact figure against the machine's specific configuration and attachments.
What replaced the Caterpillar 438?
The 438 Series II was replaced by the 438B (about 1992-1996, serial prefix 3KK), which adopted the Cat 3054 engine. The lineage continued through the 438C and 438D with turbocharged, direct-injection versions of the 3054, each keeping the same wheeled backhoe-loader layout while updating power and emissions technology.
What 438 owners discuss
What engine does a base Cat 438 backhoe loader actually have, and does it differ from the 438B/438C/438D?
The original/Series II 438 (built roughly 1988-1990) runs a naturally aspirated 4-cylinder diesel in the 4.236 displacement class, rated around 57-62 kW (77-83 hp) depending on source and configuration. Later revisions moved to a different engine family entirely: the heavier turbocharged Cat 3054-series engine, with higher output. Don't assume troubleshooting notes, injector part numbers, or turbo components from a 438B/C/D carry over to a plain 438 — confirm the engine tag and serial prefix before ordering parts or diagnosing a fuel or turbo complaint.
Owners report power loss and a rough idle that gets worse once the engine is warm — what's the usual cause?
Across this generation of mechanically-injected engines, the most consistently reported cause is air entering the fuel supply between tank/filter and injection pump, not a bad injection pump. Watch a clear section of fuel hose for bubbles at idle versus under load. Hard plastic (polyethylene/nylon) fuel hose is a repeat failure point since it stiffens and cracks in cold weather and lets air in; flexible synthetic hose is the fix mechanics settle on. If the machine has a diaphragm-type electric lift pump, it typically won't self-prime once air gets in, so proper priming after any hose work matters. If bleeding the fuel system doesn't fix it, have your dealer verify injection pump and timing before further teardown.
What transmission complaints come up for this backhoe loader family, and specifically the powershift-equipped 438?
Two patterns repeat. On powershift units: sluggish or multi-second-delayed forward/reverse engagement, usually traced to worn valve-body tolerances, low or dirty transmission fluid, or a failing neutral-safety/direction switch buried in the harness near the shift lever — not the clutch packs themselves. On manual-shuttle transmissions, the shuttle linkage where the rod enters the top of the transmission is a known wear/disconnect point. Cold, heavy transmission oil is also blamed for hard or no engagement into forward on a cold start. Have a dealer or tech confirm actual clutch-pack condition before assuming the worst.
Boom, stick, or stabilizers settle down on their own after sitting overnight — normal wear or something bigger?
This is one of the most common complaints on backhoes of this size and age. Drift traces almost always to worn cylinder piston seals rather than external plumbing. On stabilizers specifically, both the pilot-operated check valve and the cylinder seal typically have to be leaking together to produce visible drift, so a cylinder reseal is the usual fix rather than swapping the valve alone. Front loader cylinders commonly need repacking before roughly 5,000 hours of use; rear backhoe cylinders even sooner. A field diagnostic mechanics use: warm the machine, load a cylinder, shut down, and listen for a hiss at the rod seal. Safety-critical seal or valve work — have your dealer verify before returning the machine to full load service.
What undercarriage/front-axle wear pattern shows up most, and is 4x4 a weak point?
The recurring failure mode on this style of front axle (2wd and 4wd) is neglected king-pin greasing. Once the lower king-pin bearing race fails, metal debris chews out the machined bearing bore in the axle housing itself — a ductile-iron casting that can't be welded, so a worn bore usually means axle replacement rather than a weld repair. Check king-pin grease-fitting condition and play on any used unit. On 4x4-equipped machines, some owners report the electric front-axle engagement clutch blowing its fuse within minutes of use, which points to a shorted or overloaded clutch coil rather than a bad fuse — bench-test the coil before repeatedly replacing fuses. Have your dealer verify axle bore condition if there's any detectable play before buying or returning to service.
Any electrical or sensor quirks specific to this era of Cat backhoe loader?
This generation predates complex electronic controls. Most switches are simple mechanical/electrical items (neutral-start, direction, 4x4 engagement) rather than sensor-driven, so a reported "sensor" fault usually turns out to be a stuck, corroded, or failed mechanical switch — commonly the shifter/loader-handle interlock — rather than an electronic module. The two switches called out most often as failure points are the transmission neutral-safety switch near the shift lever and the 4x4 engagement switch/solenoid. Trace wiring at these points before condemning bigger components.
What should I check before buying a used Cat 438?
With the boom on the ground, cycle every function and feel for play in the bucket, stick, boom, and swing-tower (kingpost) pins — looseness here means bushing replacement or, if the swing tower itself is worn, line boring, which runs from roughly $1,500 up to $6,000 or more depending on machine size (get a local quote, varies by shop and machine). Check king-pin play and grease-fitting condition on the front axle. Run the machine to full operating temperature, load a boom or stick cylinder, shut off, and listen for a hiss to check seal drift. Look for repair welds on the loader arms or main frame, a sign of prior hard use or a bent structure. Confirm the actual engine and transmission match the serial/prefix, since specs and parts differ across 438/438B/438C/438D. Have a dealer or tech run a full pin-and-bushing measurement against factory wear limits before you finalize the purchase.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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