Caterpillarwheel-type loaderwheel loader
Caterpillar 930T
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar 930T is a small/mid-size articulated wheel-type loader from Caterpillar's mechanical, pre-electronic loader generation, built through the 1970s and into the 1980s. It carries two documented serial-number prefix blocks, 17B and 57Z; the 57Z block is shared in Caterpillar's own parts catalogs with the 930R nameplate, meaning some units left the factory carrying either name off the same production run. Power comes from the Cat 3304 diesel, offered in naturally aspirated and turbocharged form across the model's run; the naturally aspirated version is documented at 100.6 hp (75 kW) gross from 7.0 L (427 cu in) of displacement, with turbocharged units rated higher. Drive runs through a powershift transmission and torque converter with four forward and three reverse gears, wet band brakes at the final drives, and an articulated-frame steering hitch. Standard configuration is a pin-on bucket on a mechanical dual-lever control linkage; no quick coupler was offered. Naturally aspirated 57Z-prefix units are documented around 9.6 tonnes (21,200 lb) operating weight; Caterpillar's literature does not publish a dedicated 930T-only weight table separate from that shared block, so treat this as a class figure and confirm against the individual unit's rating plate. The 930T sits inside the wider 920/930 lineage that traces back to Caterpillar's early-1970s D330-to-3304 engine renumbering.
Within its own production run, the main change is the naturally aspirated-to-turbocharged 3304 split, plus the running overlap with the 930R nameplate on the 57Z serial block, which points to an in-line rename or parallel marketing rather than two separate designs. Looking at the wider 930 platform, the real dividing line comes later: the G, H, K, and M-series loaders that followed moved to electronically controlled engines, hydraulic disc brakes, and diagnostic displays the 930T never had, and today's Next-Gen 930 (2023-on, C7.1 engine) is a different machine again despite the shared model number. For the used-equipment and parts market, the 930T's appeal is mechanical simplicity: the 3304 engine shares components across a wide range of Cat dozers, loaders, and generator sets built in the same era, so injection pumps, cylinder heads, and undercarriage bushings stay available well after Caterpillar stopped supporting the model new. Surviving units mostly move for parts salvage, ground-up rebuild projects, or light-duty yard work where an operator wants to avoid electronic diagnostics and emissions equipment entirely.
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 930T specifications
Engine
| Engine family | Cat 3304 four-cylinder diesel, built in both naturally aspirated and turbocharged form across the 930T production run. Which build a given unit carries depends on its serial prefix and rating plate rather than the model name alone. |
| Displacement / cylinders | 6.97 L (425 cu in), 4 cylinders, bore 121 mm (4.75 in) x stroke 152 mm (6.00 in) — shared block architecture across naturally aspirated and turbocharged 3304 builds. |
| Emissions tier | Mechanically governed diesel predating EPA/EU regulated emissions tiers for this equipment class; no tier certification applies. |
| Gross/net power rating | Naturally aspirated units are documented around 75 kW (100.6 hp) gross. Turbocharged units are rated higher, though a distinct 930T-specific turbo figure is not separately published. Confirm exact output from the engine data plate. |
Weights
| Operating weight | Naturally aspirated units on the 57Z serial block are documented around 9.6 tonnes (21,200 lb) empty. This is a class figure tied to that specific serial block, not a universal 930T number -- confirm against the machine own data plate and configuration. |
| Shipping weight | Not documented for this configuration in available spec literature. |
| Ground pressure | Not published for this configuration in available spec literature. |
Dimensions
| Transport length / width / height | Not documented for the 930T specifically in available spec literature. Later and earlier 930-family loaders publish different figures by generation, so none can be safely carried over. |
| Wheelbase | Not documented for this configuration in available spec literature. |
| Ground clearance | Not documented for this configuration in available spec literature. |
Performance
| Configuration | Articulated-frame, four-wheel-drive, single-bucket wheel loader, consistent with the 920/930/930T family design. |
| Travel speeds | Not separately published for the 930T in available literature. |
| Gradeability | Not documented for this configuration in available literature. |
Service capacities (summary)
| Fuel tank | Not separately published for the 930T in available literature. |
| Hydraulic system | Not separately published for the 930T in available literature. |
| Engine oil | Not separately published for the 930T installation specifically; oil pan configuration can differ by application even on a shared 3304 block. Confirm against the machine's own service manual. |
| Cooling system | Not separately published for the 930T in available literature. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
930T fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase, with filter (Cat 3304 diesel) | 12-16 L (3.2-4.3 US gal); range covers naturally aspirated and turbocharged 3304 builds used across 930T serial ranges | Cat DEO (Diesel Engine Oil). Grade by ambient temperature per Cat's viscosity chart: SAE 10W in cold climates, SAE 30 or 15W-40 in temperate-to-hot climates. |
| Cooling system | Engine jacket alone holds about 16 L (4.2 US gal). Full system total with radiator is not documented for this exact configuration - check the OMM for your serial prefix. | Caterpillar permanent-type ethylene-glycol antifreeze/coolant mixed with water, dosed with Cat coolant conditioner/corrosion inhibitor per the machine's cooling-system service program. |
| Fuel tank | Not confirmed for the 930T nameplate specifically. Same 3304-engine-family 930 loaders carry roughly 148 L (39 US gal) - verify against your OMM. | No. 2-D diesel fuel, Caterpillar's standard diesel fuel specification. |
| Power train - torque converter, powershift transmission, bevel gear and differentials (combined fill) | Not documented for this exact configuration. The parts book shows one power train oil filler serving transmission, torque converter, and differentials as a single circuit - verify capacity with your dealer or OMM. | Cat TDTO (Transmission/Drive Train Oil). Grade by ambient temperature per Cat's chart: SAE 10W in cold climates up to SAE 30 or SAE 50 in hot climates. |
| Final drives, each (front and rear) | No separate fill point documented. Final drives draw from the same power train TDTO circuit rather than an independent compartment on this configuration. | Cat TDTO (Transmission/Drive Train Oil), same spec as power train. |
| Hydraulic system, including tank (implement and steering circuit) | Not confirmed for the 930T nameplate specifically. Same 3304-engine-family 930 loaders show roughly 74 L (19.6 US gal) - verify against your OMM. | Cat TDTO (Transmission/Drive Train Oil). This generation runs one TDTO-spec fluid across power train and hydraulic/implement circuits rather than a dedicated hydraulic oil. |
| Axles/differentials, front and rear (bevel gear and differential) | No separate fill point. Differentials and bevel gear sets share the combined power train oil circuit. | Cat TDTO (Transmission/Drive Train Oil), same spec as power train. |
| Grease points - pins, bushings, linkages | N/A - regreased at scheduled intervals with a grease gun, not a fill-and-check reservoir. | Caterpillar Multipurpose Grease, NLGI Grade 2, EP (extreme-pressure) type. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar 930T maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
| Every 8,000 h |
|
Servicing the 930T beyond the schedule
Predictive Maintenance & Fluid Analysis
The 930T carries no ECM, so scheduled oil sampling is the main early-warning tool. Pull engine oil samples looking for fuel dilution and iron from injection pump wear; on turbocharged units also watch for bearing debris signaling turbo shaft wear. Sample transmission and torque converter oil for water intrusion and clutch material, since band wear shows in oil condition before it shows in shift quality. Check final drive oil condition as well, since the wet band brakes share that housing and contaminate the oil as they wear.
Corrective & Common Repairs
Expect fuel-system faults first: the mechanical injection pump and governor rack on the 3304 stick or drift out of calibration on units that sat idle or ran dirty fuel, causing rough running or hunting. Turbocharged units add turbo shaft play and oil-seal leaks as a common failure. Wet band brakes at the final drives glaze or wear thin under heavy dragging, showing up as a spongy pedal or brake fade. Articulation pin and bushing play, steering cylinder seal leaks, and pin-on bucket linkage wear round out the list.
Overhaul & Rebuild Points
High-hour 930T units typically need engine top-end work first: valve lash drifts, injector nozzles wear, and the injection pump needs recalibration or rebuild; turbocharged units add the turbocharger itself to that list. The powershift transmission and torque converter come next as clutch packs wear under repeated loader cycling. Final drive planetaries and the wet brake pack carry the machine's full working and stopping loads and deserve inspection at any major teardown. Because parts support is thin, plan rebuilds around available 3304 cores and linkage pin-and-bushing kits rather than one-off parts.
Seasonal & Environment Servicing
Cold-climate 930T units left the factory with an ether start aid, a block heater, and extra cold-cranking battery capacity to start the 3304 in freezing weather; never run ether and an intake heater together. Switch to lower-viscosity engine oil for winter and keep the block heater plugged in overnight. In hot, dusty yards, service the air cleaner and radiator core more often than the standard interval, and watch the wet brake bands for glazing from repeated low-speed dragging in tight, dusty work areas.
930T common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 8T-2475 | Transmission Filter | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
930T fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Engine Oil Pressure warning lamp (red, dash cluster) with audible alarm | Engine oil pressure switch has tripped below the safe minimum threshold | Low oil level, worn oil pump, plugged suction screen, or a failed pressure sending unit/switch | Shut engine down immediately, check oil level and condition before restarting, then verify the sender/switch if the level is correct |
| Coolant Temperature warning lamp (red, dash cluster) with audible alarm | Engine coolant temperature has exceeded the safe operating limit | Low coolant, debris-clogged radiator core, slipping or broken fan belt, failed water pump, or a stuck thermostat | Reduce load and idle down, shut down once safe, let the engine cool, then check coolant level and radiator core before restart |
| Charging System warning lamp (amber, dash cluster) | Alternator output has fallen below the voltage regulator setpoint and the battery is not being charged | Worn or slipping alternator belt, corroded/loose battery or regulator connections, or a failed alternator/regulator | Check belt tension and battery cable connections first, then bench- or circuit-test the alternator and regulator |
| Torque Converter / Transmission Oil Temperature gauge in red zone | Powershift transmission and torque converter oil temperature has risen above the safe operating range | Low transmission oil, a restricted or fouled oil cooler, prolonged stall/high-load operation, or a worn converter | Reduce load, come off stall, let the converter cool at low idle, then check oil level and inspect the cooler for restriction |
| Air Filter Restriction indicator (service gauge/flag on air cleaner housing) | Intake air restriction has reached the point where the primary element needs service | Dirty or clogged primary air filter element, sometimes a collapsed or torn element | Service or replace the primary air filter element per the indicator reading and reset the indicator |
| Hydraulic/Transmission Filter Bypass indicator | The filter bypass valve has opened, meaning unfiltered oil is circulating in the system | Overdue or plugged filter element, or cold, high-viscosity oil at startup | Replace the filter element and check oil condition; if bypass recurs after warm-up, inspect for internal contamination |
| Parking/Service Brake system warning lamp (red, dash cluster) | Brake system pressure is low or the parking brake is applied | Parking brake left engaged, low hydraulic system pressure, or a leak in the brake actuation circuit | Confirm the parking brake is released before moving the machine, then check system pressure and inspect for leaks if the lamp stays on |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
930T attachments & work tools
General Purpose Buckets
Standard bolt-on-edge general purpose bucket is the primary work tool for this platform, in roughly the 1.1-2.1 m3 (1.4-2.7 yd3) class depending on production era and tire/counterweight package. Exact capacity varies by configuration; match bucket width to tire spec.
Multi-Purpose (4-in-1) Buckets
A clamshell-style multi-purpose bucket is offered as an alternative to the GP bucket for this loader class, letting the operator dose, clamp, dig, grade, and dump with one tool. It needs a third (auxiliary) hydraulic circuit beyond the standard lift/tilt lines.
Pallet Forks
Fork carriages and pallet forks are a common option for this loader size class, fitted to the lift arms for material handling and yard work. Tine length and carriage width vary by dealer package; confirm fitment against the linkage in use.
Loader Linkage
Lift/tilt geometry on this platform is Cat's Z-bar loader linkage, favoring breakout force and lift capacity at the bucket edge. This differs from the parallel-lift, tool-carrier-style linkage used on later integrated-toolcarrier variants of the broader 930 lineage.
Coupler / Mounting System
Factory buckets and forks of this generation mount via pin-on linkage rather than a hydraulic quick coupler. Electro-hydraulic quick-coupler systems marketed under the 930 nameplate belong to later, unrelated generations of the lineup and are not documented for this configuration.
Power Train and Hydraulic Kit
This variant runs the Cat 3304 diesel with a torque-converter powershift transmission. Basic bucket and fork swaps draw off the same lift/tilt hydraulic circuit already on the machine, with no separate engine or transmission change needed.
Factory Configuration Notes
Caterpillar's own parts documentation groups this variant with its 930R counterpart under one shared power-train and attachment-linkage listing, indicating both were built as regional/driveline counterparts on a common chassis rather than as separate attachment ecosystems.
All 930T assemblies by section
Every catalogued assembly group for the Caterpillar 930T. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
4w4565 Air Cleaner Gp
| 4W***65 | Air Cleaner Group | 1 |
8s4311 Air Cleaner Gp
| 8S***11 | Air Cleaner Group | 1 |
4w4566 Air Cleaner Gp
| 4W***66 | Air Cleaner Group | 1 |
2w2176 Compressor Gp-Air
| 2W***76 | Air Compressor Group | 1 |
1w6473 Compressor Gp-Air*R
| 1W***73 | Air Compressor Group | 1 |
1w3793 Fastener Gp-Exhaust Manifold
| 1W***93 | Fastener Group-Exhaust Manifold; Exhaust Manifold Fastener Group | 1 |
5y0551 Lines Gp-Air
| 5Y***51 | Lines Group-Air | 1 |
4w4324 Lines Gp-Air
| 4W***24 | Lines Group-Air; Lines Gp-Air-Inlet Manifold | 1 |
2p6839 Lines Gp-Air
| 2P***39 | Lines Group-Air; Air Lines Group | 1 |
7n3796 Lines Gp-Compressor
| 7N***96 | Lines Group-Compressor; Air Compressor Lines Group | 1 |
1w0558 Lines Gp-Turbocharger Oil
| 1W***58 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
2p6570 Manifold Gp-Exhaust
| 2P***70 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
2p6571 Manifold Gp-Exhaust
| 2P***71 | Manifold Group-Exhaust; Exhaust Manifold Group | 1 |
7n7618 Mounting Gp-Muffler
| 7N***18 | Mounting Group-Muffler | 1 |
7s7736 Muffler Gp
| 7S***36 | Muffler Group | 1 |
5y0812 Muffler Gp
| 5Y***12 | Muffler Group; Muffler Gp-Exhaust | 1 |
8s1335 Muffler Gp-Exhaust
| 8S***35 | Muffler Group; Muffler Gp-Exhaust | 1 |
2p7349 Pipe Gp-Exhaust
| 2P***49 | Pipe Group-Exhaust; Exhaust Pipe Group | 1 |
1w5130 Turbocharger Gp
| 1W***30 | Turbocharger Group | 1 |
1w5160 Turbocharger Gp
| 1W***60 | Turbocharger Group | 1 |
Basic Engine
1w2872 Balancer Gp
| 1W***72 | Balancer Group; Balancer Group | 1 |
1n4436 Camshaft Gp-Single
| 1N***36 | Camshaft Group-Single; Single Camshaft Group | 1 |
2w0102 Cover Gp-Cylinder Block
| 2W***02 | Cover Group-Cylinder Block; Cylinder Block Cover Group | 1 |
2p6530 Cover Gp-Cylinder Head
| 2P***30 | Cover Group-Cylinder Head; Cylinder Head Cover Group | 1 |
2p6529 Cover Gp-Front Housing
| 2P***29 | Cover Group-Front Housing; Front Housing Cover Group | 1 |
8n4446 Cover Gp-Valve Mechanism
| 8N***46 | Cover Group-Valve Mechanism; Valve Mechanism Cover Group | 1 |
2y4515 Crankshaft As*R
| 2Y***15 | Crankshaft As | 1 |
Crankshaft Bearing Replacements
| 8N***25 | Bearing (1.25mm Undersize) | 5 |
| 8N***26 | Bearing (0.51mm Undersize) | 5 |
| 8N***27 | Bearing (0.76mm Undersize) | 5 |
2y5204 Crankshaft Gp
| 2Y***04 | Crankshaft Group; Crankshaft Group | 1 |
7n6552 Cylinder Block As
| 7N***52 | Cylinder Block As | 1 |
1n3574 Cylinder Block Gp*R
| 1N***74 | Cylinder Block Group | 1 |
7n6553 Cylinder Block Gp
| 7N***53 | Cylinder Block Group; Cylinder Block Group | 1 |
7n8874 Cylinder Head Gp *R
| 7N***74 | Cylinder Head Group; Cylinder Head Group | 1 |
8n0224 Cylinder Head Gp
| 8N***24 | Cylinder Head Group; Cylinder Head Group | 1 |
7v9165 Drain Gp-Flywheel Housing
| 7V***65 | Drain Group | 1 |
7n9534 Fastener Gp-Cylinder Head
| 7N***34 | Fastener Group-Cylinder Head; Cylinder Head Fastener Group | 1 |
2y5717 Fastener Gp-Front Housing
| 2Y***17 | Fastener Group-Front Housing; Front Housing Fastener Group | 1 |
2p6186 Fastener Gp-Oil Pan
| 2P***86 | Fastener Group-Oil Pan; Oil Pan Fastener Group | 1 |
7s7877 Flywheel Gp
| 7S***77 | Flywheel Group; Flywheel Group | 1 |
1w5634 Gear Gp-Front Timing
| 1W***34 | Gear Group-Front Timing; Front Gear Group--Timing | 1 |
1w5723 Housing Gp-Flywheel
| 1W***23 | Housing Group-Flywheel | 1 |
8n0303 Housing Gp-Front
| 8N***03 | Housing Group-Front; Front Housing Group | 1 |
2p8598 Hub Gp-Crankshaft
| 2P***98 | Hub Group-Crankshaft; Crankshaft Hub Group | 1 |
6n8326 Lifting Eye Gp-Engine
| 6N***26 | Lifting Group; Lifting Eye Gp-Engine | 1 |
2p6175 Pan Gp-Engine Oil
| 2P***75 | Pan Group-Oil; Pan Gp-Engine Oil | 1 |
1w6588 Rod & Piston Gp
| 1W***88 | Piston & Rod Group; Connecting Rod And Piston Group | 1 |
7n2879 Pulley Gp-Crankshaft
| 7N***79 | Pulley Group-Crankshaft; Crankshaft Pulley Group | 1 |
7n2887 Pulley Gp-Crankshaft
| 7N***87 | Pulley Group-Crankshaft; Crankshaft Pulley Group | 1 |
1w9219 Pulley Gp-Fan
| 1W***19 | Pulley Group-Fan Drive | 1 |
2p6224 Seal Gp-Crankshaft
| 2P***24 | Seal Group-Crankshaft; Crankshaft Seal Group | 1 |
1w8454 Support Gp-Engine
| 1W***54 | Support Group-Engine | 1 |
7n9589 Trunnion Gp-Engine
| 7N***89 | Trunnion Group-Engine | 1 |
7n8024 Valve Mechanism Gp
| 7N***24 | Valve Mechanism Group; Valve Mechanism Group | 1 |
Cab, Gauges And Accessories
2y6784 Dash Gp
| 2Y***84 | Dash Group | 1 |
2y9735 Gauge Gp-Part 1 Of 2
| 2Y***35 | Gauge Group | 1 |
2y9735 Gauge Gp-Part 2 Of 2
| 2Y***35 | Gauge Group | 1 |
7v9507 Belt Gp-Seat
| 7V***07 | Seat Belt Group | 1 |
9c6249 Seat Gp
| 9C***49 | Seat Group | 1 |
7v2318 Seat Gp
| 7V***18 | Seat Group | 1 |
2y3664 Seat Gp
| 2Y***64 | Seat Group | 1 |
2y2838 Seat Gp
| 2Y***38 | Seat Group | 1 |
5v3754 Step Gp
| 5V***54 | Step Group | 1 |
4v7047 Support Gp-Seat & Hydraulic Tank
| 4V***47 | Support Group-Seat & Hydraulic Tank | 1 |
Chassis
1v1848 Counterweight Gp
| 1V***48 | Counterweight Group | 1 |
6k8232 Fender Gp
| 6K***32 | Fender Group | 1 |
9k6357 Frame Gp-Rear
| 9K***57 | Frame Group-Engine End | 1 |
6k7755 Frame Gp-Front
| 6K***55 | Frame Group-Loader | 1 |
7k0344 Guard Gp-Tractor
| 7K***44 | Guard Group-Tractor | 1 |
8v3341 Hood & Guard Gp
| 8V***41 | Hood & Guard Group | 1 |
Cooling System
8n4457 Base Gp-Engine Oil Filter
| 8N***57 | Base Group-Oil Filter; Base Group-Engine Oil Filter | 1 |
8n4457 Base Gp-Oil Filter
| 8N***57 | Base Group-Oil Filter; Base Group-Engine Oil Filter | 1 |
2w7280 Cooler Gp-Filter Base & Engine Oil
| 2W***80 | Cooler Group-Filter Base & Eng Oil | 1 |
2y8080 Cooler Gp-Filter Base & Engine Oil
| 2Y***80 | Cooler Group-Filter Base & Eng Oil; Cooler Gp-Filter Base & Engine Oil | 1 |
2y7979 Cooler Gp-Filter Base & Engine Oil
| 2Y***79 | Cooler Group-Filter Base & Eng Oil; Cooler Gp-Filter Base & Engine Oil | 1 |
2w7279 Cooler Gp-Filter Base & Engine Oil
| 2W***79 | Cooler Group-Filter Base & Eng Oil; Cooler Gp-Filter Base & Engine Oil | 1 |
7k3274 Cooler Gp-Oil
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 1K***28 | Washer-Retaining | 1 |
| 2A***39 | Bolt,Machine Tube To Torque Converter And Tube To Oil Cooler | 4 |
2y8051 Cooler Gp-Transmission Oil
| 2Y***51 | Cooler Group-Transmission Oil; Transmission Oil Cooler Group | 1 |
1w9124 Drive Gp-Fan
| 1W***24 | Drive Group-Fan | 1 |
1n3016 Fan Gp-Blower
| 1N***16 | Fan Group-Blower; Blower Fan Group | 1 |
2p8165 Regulator & Housing Gp
| 2P***65 | Housing & Regulator Group; Housing And Regulator Group | 1 |
8n4112 Lines Gp-Water
| 8N***12 | Lines Group-Water; -Bypass Relief | 1 |
2y8079 Lines Gp-Water
| 2Y***79 | Lines Group-Water; Water Lines Group | 1 |
7n5908 Pump Gp-Water
| 7N***08 | Pump Group-Water | 1 |
2w8002 Pump Gp-Water*R
| 2W***02 | Pump Group-Water; Water Pump (Assembly) | 1 |
2y9784 Radiator Gp-Part 1 Of 2
| 2Y***84 | Radiator Group | 1 |
2y9784 Radiator Gp-Part 2 Of 2
| 2Y***84 | Radiator Group | 1 |
Engine Arrangement
5y1780 Engine Ar-Part 2 Of 2
| 1W***58 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
| 1W***30 | Turbocharger Group | 1 |
| 1W***88 | Piston & Rod Group; Connecting Rod And Piston Group | 4 |
5y1780 Engine Ar-Part 1 Of 2
| 1N***36 | Camshaft Group-Single; Single Camshaft Group | 1 |
| 1N***74 | Fumes Disposal Group | 1 |
| 1P***44 | Breather Group | 1 |
2y9510 Engine Ar-Part 2 Of 2
| 1W***88 | Piston & Rod Group; Connecting Rod And Piston Group | 4 |
| 1W***54 | Support Group-Engine | 1 |
| 1W***19 | Pulley Group-Fan Drive | 1 |
2y9510 Engine Ar-Part 1 Of 2
| 1N***36 | Camshaft Group-Single; Single Camshaft Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1W***72 | Balancer Group; Balancer Group | 1 |
5y0650 Engine Ar-Part 1 Of 2
| 1N***36 | Camshaft Group-Single; Single Camshaft Group | 1 |
| 1P***44 | Breather Group | 1 |
| 1W***58 | Lines Group-Turbocharger Oil; Turbocharger Oil Lines Group | 1 |
5y0650 Engine Ar-Part 2 Of 2
| 1W***30 | Turbocharger Group | 1 |
| 1W***88 | Piston & Rod Group; Connecting Rod And Piston Group | 4 |
| 1W***54 | Support Group-Engine | 1 |
5y0649 Installation Ar
| 1B***55 | Nut,Plain,Hexagon Turbocharger Mounting | 2 |
| 1N***16 | Fan Group-Blower; Blower Fan Group | 1 |
| 2Y***99 | Starting Motor Group-Electric | 1 |
5y0651 Normalizing Ar
| 5Y***49 | Installation Ar | 1 |
| 5Y***50 | Engine Ar | 1 |
| 5Y***51 | Normalizing Ar | 1 |
Fuel System And Governor
2w6237 Lines Gp-Fuel Injection
| 2W***37 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
7w3790 Lines Gp-Fuel Injection
| 7W***90 | Lines Group-Fuel Injection | 1 |
8n8170 Lines Gp-Fuel Injection
| 8N***70 | Lines Group-Fuel Injection | 1 |
8n2772 Lines Gp-Fuel Injection
| 8N***72 | Lines Group-Fuel Injection; Fuel Injection Lines Group | 1 |
7c5170 Lines Gp-Fuel Injection
| 7C***70 | Lines Group-Fuel Injection | 1 |
7c5160 Lines Gp-Fuel Injection
| 7C***60 | Lines Group-Fuel Injection | 1 |
7w3795 Lines Gp-Fuel Injection
| 7W***95 | Lines Group-Fuel Injection | 1 |
2w6175 Camshaft As
| 2W***75 | Camshaft As | 1 |
5g3612 Cap Gp-Protection-Fuel Tank
| 5G***12 | Cap Group-Protection; Fuel Filler Protection Cap Group | 1 |
2y9734 Control Gp-Governor
| 2Y***34 | Control Group-Governor | 1 |
1w9532 Filter Gp-Secondary Fuel
| 1W***32 | Filter Group-Fuel; Filter Gp-Secondary Fuel | 1 |
1w8730 Governor Gp-Part 2 Of 3
| 1W***30 | Governor Group | 1 |
1w8730 Governor Gp-Part 3 Of 3
| 1W***30 | Governor Group | 1 |
1w8730 Governor Gp-Part 1 Of 3
| 1W***30 | Governor Group | 1 |
1w6539 Pump Gp-Fuel Injection
| 1W***39 | Pump Group-Fuel Injection | 1 |
2w6178 Pump Gp-Fuel Injection
| 2W***78 | Pump Group-Fuel Injection | 1 |
8n5251 Pump Gp-Fuel Priming & Primary Filter
| 8N***51 | Pump Group-Fuel Prime & Prim Filter | 1 |
8n3365 Pump Gp-Fuel Priming
| 8N***65 | Pump Group-Fuel Priming; Priming Pump-Fuel & Primary Filter | 1 |
7c1123 Pump Gp-Fuel Priming & Primary Filter
| 7C***23 | Pump Group-Fuel Prm & Prim Filter; Pump Gp-Fuel Priming & Primary Filter | 1 |
1w1695 Pump Gp-Fuel Transfer*R
| 1W***95 | Pump Group-Fuel Transfer | 1 |
2w4160 Fuel Transfer Pump & Mounting Gp
| 2W***60 | Pump Group-Fuel Transfer & Mtg; Fuel Transfer Pump And Mounting Group | 1 |
7c1132 Pump Gp-Governor & Fuel Injection
| 7C***32 | Pump Group-Gov & Fuel Inj; Pump Gp-Governor & Fuel Injection | 1 |
2y9736 Fuel Lines & Tank Gp
| 2Y***36 | Tank & Lines Group-Fuel | 1 |
2y9736 Tank Gp-Fuel Lines
| 2Y***36 | Tank & Lines Group-Fuel | 1 |
1w3598 Torque Control Gp-Type 1
| 1W***98 | Torque Control Group | 1 |
1w3598 Torque Control Gp-Type 2
| 1W***98 | Torque Control Group | 1 |
Hydraulic System
6j9919 Body Gp-Make-Up Valve
| 6J***19 | Body Group-Valve | 1 |
1u2665 Cartridge Gp*R
| 1U***65 | Cartridge Group | 1 |
3g1267 Cartridge Gp-Front*R
| 3G***67 | Cartridge Group | 1 |
6k7602 Control Gp-Double Lever Hand-Tilt & Lift
| 6K***02 | Control Group-Hand | 1 |
7k1980 Control Gp-Hydraulic
| 7K***80 | Control Group-Hydraulic; Hydraulic Control Group | 1 |
6k7701 Cylinder As-Slave
| 6K***01 | Cylinder As | 1 |
7j9871 Cylinder Gp (7k9433 N/S)-Lift-R.H. (Chg.-03)
| 7J***71 | Cylinder Group-Lift | 1 |
7j9872-Cylinder Gp (7k9434 N/S)-Lift-L.H. (Chg.-04)
| 7J***72 | Cylinder Group-Lift | 1 |
7j9871 Cylinder Gp (7k9433 N/S)-Lift R.H. (Chg.-01)
| 7J***71 | Cylinder Group-Lift | 1 |
7j9872 Cylinder Gp (7k9434 N/S)-Lift-L.H. (Chg. 01)
| 7J***72 | Cylinder Group-Lift | 1 |
7j9730 Cylinder Gp-L.H. Tilt
| 7J***30 | Cylinder Group-Tilt | 1 |
7j9729 Cylinder Gp
| 7J***29 | Cylinder Group-Tilt | 1 |
7j9729 Cylinder Gp-R.H. Tilt
| 7J***29 | Cylinder Group-Tilt | 1 |
7j0001 Housing Gp-Tilt Control Lever
| 7J***01 | Housing Group-Lever | 1 |
7j0002 Housing Gp-Lift Control Lever
| 7J***02 | Housing Group-Lever | 1 |
7j2295 Housing Gp
| 7J***95 | Housing Group-Output | 1 |
6k8008 Hydraulic Ar
| 6K***08 | Hydraulic Ar | 1 |
| 7K***02 | Lines Group-Hydraulic; Hydraulic Lines Group | 1 |
| 7K***80 | Control Group-Hydraulic; Hydraulic Control Group | 1 |
6k7705 Kickout Gp
| 6K***05 | Kickout Group | 1 |
7v9121 Lines Gp-Hydraulic Oil
| 7V***21 | Lines Group-Hydraulic | 1 |
7k0602 Lines Gp-Hydraulic
| 7K***02 | Lines Group-Hydraulic; Hydraulic Lines Group | 1 |
7v9135 Lines Gp-Lift Cylinder-Part 2 Of 2
| 7V***35 | Lines Group-Lift Cylinder | 1 |
7v9135 Lines Gp-Lift Cylinder-Part 1 Of 2
| 7V***35 | Lines Group-Lift Cylinder | 1 |
7k2468 Lines Gp-Hydraulic Oil Cooler
| 7K***68 | Lines Group-Oil Cooler | 1 |
6k8289 Lines Gp-Tilt Cylinder-Part 1 Of 2
| 6K***89 | Lines Group-Tilt Cylinder | 1 |
6k8289 Lines Gp-Tilt Cylinder-Part 2 Of 2
| 6K***89 | Lines Group-Tilt Cylinder | 1 |
6k8289 Lines Gp-Hydraulic
| 6K***89 | Lines Group-Tilt Cylinder | 1 |
5j9113 Valve Gp-Main Relief
| 5J***13 | Main Relief Valve Group | 1 |
6k9900 Positioner & Indicator Gp-Bucket-Part 1 Of 2
| 6K***00 | Positioner Group | 1 |
6k9900 Positioner & Indicator Gp-Bucket-Part 2 Of 2
| 6K***00 | Positioner Group | 1 |
4t0508 Pump Gp-Vane
| 4T***08 | Pump Group-Vane | 1 |
7v9156 Pump Gp-Vane
| 7V***56 | Pump Group-Vane | 1 |
8j0214 Tank & Valve Gp-Part 1 Of 3
| 8J***14 | Tank & Valve Group; Hydraulic Tank And Valve Group | 1 |
8j0214 Tank & Valve Gp-Part 2 Of 3
| 8J***14 | Tank & Valve Group; Hydraulic Tank And Valve Group | 1 |
8j0214 Tank & Valve Gp-Part 3 Of 3
| 8J***14 | Tank & Valve Group; Hydraulic Tank And Valve Group | 1 |
8j0212 Tank & Valve Gp-Hydraulic-Part 2 Of 3
| 8J***12 | Tank & Valve Group-Hydraulic | 1 |
8j0212 Tank & Valve Gp-Hydraulic-Part 3 Of 3
| 8J***12 | Tank & Valve Group-Hydraulic | 1 |
8j0212 Tank & Valve Gp-Hydraulic-Part 1 Of 3
| 8J***12 | Tank & Valve Group-Hydraulic | 1 |
6j9991 Valve Gp-Main Control
| 6J***91 | Valve Group | 1 |
6j7364 Valve Gp
| 6J***64 | Valve Group | 1 |
9j8729 Valve Gp
| 9J***29 | Valve Group | 1 |
3g2315 Valve Gp-Pitch Relief
| 3G***15 | Valve Group-Pitch Relief | 1 |
| 4T***99 | Valve Group-Relief; Relief Valve Group | 1 |
| 4T***01 | Valve Group-Relief | 1 |
4t7599 Valve Gp-Relief
| 4T***99 | Valve Group-Relief; Relief Valve Group | 1 |
4t7601 Valve Gp-Relief
| 4T***01 | Valve Group-Relief | 1 |
5j9106 Valve Gp-Tilt Relief
| 5J***06 | Valve Group-Relief | 1 |
Implements
2y5549 Bucket As-General Purpose
| 2Y***49 | Bucket As | 1 |
7k9792 Control Gp-Bucket
| 7K***92 | Control Group-Bucket | 1 |
5y0928 Kit-Levers
| 0S***73 | Bolt (102mm Long); (1/2-13x4-In) | 2 |
| 1D***69 | Bolt 107.95 mm(4.25 In.) Long; Bolt (Plate To Front Housing) | 4 |
| 1G***83 | Cap-Grease | 12 |
5y0927 Kit-Lift Arm
| 1G***83 | Cap-Grease | 2 |
| 2J***84 | Bolt | 2 |
| 3B***89 | Fitting-Grease; (Fan And Alternator Drive) | 2 |
8j4989 Tooth Gp
| 8J***89 | Tooth Group | 1 |
Lubrication System
1p4244 Breather Gp-Crankcase
| 1P***44 | Breather Group | 1 |
2p6855 Filler Gp-Engine Oil
| 2P***55 | Filler Group-Oil | 1 |
2y6278 Fumes Disposal Gp
| 2Y***78 | Fumes Disposal Group; Fumes Disposal Group | 1 |
2p6491 Gauge Gp-Engine Oil Level
| 2P***91 | Gauge Group-Oil Level (Dipstick) | 1 |
2p6512 Lines Gp-Engine Oil
| 2P***12 | Lines Group-Engine Oil; Engine Oil Lines Group | 1 |
4w2448 Pump Gp-Engine Oil*R
| 4W***48 | Pump Group-Engine Oil; Pump Gp-Engine Oil Gear | 1 |
6n2642 Pump Gp-Engine Oil
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 1 |
| 1P***46 | Washer-Hard; (10.2x35x6-mm Thk) | 1 |
| 4W***48 | Pump Group-Engine Oil; Pump Gp-Engine Oil Gear | 1 |
2p1784 Pump Gp-Engine Oil
| 2P***84 | Pump Group-Engine Oil; Engine Oil Pump Group | 1 |
Power Train-Power Transmission Unit
4v6533 Front Brake & Axle Gp
| 4V***33 | Brake & Axle Group-Front | 1 |
4v6532 Brake & Axle Gp-Rear
| 4V***32 | Brake & Axle Group-Rear | 1 |
4v4893 Brake Gp-Hydraulic Caliper Service
| 4V***93 | Brake Group-Hydraulic Caliper Service | 1 |
8r0826 Brake Gp-Hydraulic Caliper Service
| 8R***26 | Brake Group-Hydraulic Caliper Service | 1 |
6t4057 Case & Parts Gp
| 6T***57 | Case & Parts Group-Planetary | 1 |
7v9138 Control Gp-Transmission
| 7V***38 | Control Group-Transmission | 1 |
8p8980 Control Gp-Transmission Hydraulic
| 8P***80 | Control Group-Transmission Hydraulic; Transmission Hydroulic Control Group | 1 |
3t8386 Covers Gp-Shipping
| 3T***86 | Covers Group-Shipping; Shipping Covers Group | 1 |
8v3318 Bevel Gear & Front Differential Gp
| 8V***18 | Differential & Bevel Gear Group | 1 |
8v3319 Bevel Gear & Rear Differential Gp
| 8V***19 | Differential & Bevel Gear Group | 1 |
9k8944 Differential Gp
| 9K***44 | Differential Group | 1 |
9p9523 Drive Gp-Pump
| 9P***23 | Drive Group-Pump; Pump Drive Group | 1 |
7v9100 Filler Gp-Powertrain Oil
| 7V***00 | Filler Group-Power Train Oil | 1 |
7v9157 Filter & Lines Gp
| 7V***57 | Filter & Lines Group | 1 |
9p1509 Filter Gp-Transmission Oil
| 9P***09 | Filter Group-Transmission; (Trans.) | 1 |
3t8314 Gear Gp-Transfer-Output
| 3T***14 | Gear Group-Transfer | 1 |
5y1571 Kit-Differential
| 2B***57 | Cork 1.27 cm(.5 In.) Diameter | 4 |
| 2K***54 | Seal-Ring | 1 |
| 2K***86 | Washer-Thrust | 4 |
3t4619 Lines Gp-Powertrain Oil
| 3T***19 | Lines Group-Power Train Oil | 1 |
9v3670 Lines Gp-Torque Converter Cooler
| 9V***70 | Lines Group-Torque Conv Cooler | 1 |
8p9857 Planetary Gp-Transmission-Part 3 Of 4
| 8P***57 | Planetary Group; Planetary Group | 1 |
8p9857 Planetary Gp-Transmission-Part 1 Of 4
| 8P***57 | Planetary Group; Planetary Group | 1 |
8p9857 Planetary Gp-Transmission-Part 4 Of 4
| 8P***57 | Planetary Group; Planetary Group | 1 |
8p9857 Planetary Gp-Transmission-Part 2 Of 4
| 8P***57 | Planetary Group; Planetary Group | 1 |
8p9857 Planetary Gp-Transmission
| 8P***57 | Planetary Group; Planetary Group | 1 |
3t4604 Pump Gp-Gear
| 3T***04 | Pump Group-Gear | 1 |
7v5211 Rim Gp-Demountable-4 Required
| 7V***11 | Rim Group-Demountable | 1 |
1v7251 Rim Gp-Demountable
| 1V***51 | Rim Group-Demountable | 1 |
2y2886 Rim Gp-Demountable
| 2Y***86 | Rim Group-Demountable | 1 |
7v9131 Drive Shaft Gp
| 7V***31 | Shaft Group-Drive | 1 |
8r6830 Joint Gp
| 8R***30 | Slip Joint Group | 1 |
7v9074 Support Gp-Transmission
| 7V***74 | Support Group-Transmission | 1 |
2y7125 Tire & Rim Ar
| 2D***30 | Washer-Ring | 1 |
| 2D***31 | Nut; (0.482-26-Thd) | 1 |
| 2D***33 | Cap; (Valve Stem) | 1 |
2y7124 Tire & Rim Ar
| 2D***30 | Washer-Ring | 1 |
| 2D***31 | Nut; (0.482-26-Thd) | 1 |
| 2D***33 | Cap; (Valve Stem) | 1 |
1t1615 Torque Converter Gp-Part 2 Of 2
| 1T***15 | Torque Converter Group | 1 |
3t4588 Transmission Ar
| 1T***15 | Torque Converter Group | 1 |
| 3T***88 | Transmission Ar | 1 |
| 3T***19 | Lines Group-Power Train Oil | 1 |
8p3040 Valve Gp-Neutralizer
| 8P***40 | Valve Group-Neutralizer | 1 |
8p9854 Valve Gp-Outlet Relief
| 8P***54 | Valve Group-Relief; Relief Valve Group | 1 |
7t1374 Valve Gp-Selector & Pressure Control
| 7T***74 | Valve Group-Selector & Press Cont | 1 |
8p8981 Valve Gp-Transmission Hydraulic Control
| 8P***81 | Valve Group-Transmission Control | 1 |
4v6531 Final Drive & Wheel Gp
| 4V***31 | Wheel & Final Drive Group | 1 |
Service Equipment And Supplies
8f9866 Grease Gun As
| 8F***66 | Grease Gun As | 1 |
Name Plates & Transfers
| 2S***87 | Warning Tag | 1 |
| 2Y***85 | Transfer--Address | 1 |
| 2Y***64 | Plate-Master Serial No.-On R.H. Side | 1 |
2y2576 Tool Gp-Hand
| 2Y***76 | Tool Group-Hand | 1 |
Starting And Electrical System
2y8310 Alternator Gp
| 2Y***10 | Alternator Group-Charging | 1 |
2y8950 Alternator Gp
| 2Y***50 | Alternator Group-Charging | 1 |
2y9737 Battery & Wiring Gp-Part 1 Of 2
| 2Y***37 | Battery & Wiring Group | 1 |
2y9737 Battery & Wiring Gp-Part 2 Of 2
| 2Y***37 | Battery & Wiring Group | 1 |
7m7147 Stop & Tail Lamp As-Combination-24 Volt
| 7M***47 | Lamp As-Stop & Tail | 1 |
1m1882 Lamp Gp-Flood-24 Volt
| 1M***82 | Lamp Group | 1 |
9m1305 Lamp As-Dash-24 Volt
| 9M***05 | Lamp Group | 1 |
8m7677 Lamp As-Dash-24 Volt
| 8M***77 | Lamp Group-Dash | 1 |
2y4477 Lamp Gp-Flood-24 Volt
| 2Y***77 | Lamp Group-Flood | 1 |
7k9706 Lighting Gp-Rear-24 Volt
| 7K***06 | Lighting Group | 1 |
2y3597 Lighting Gp-Front
| 2Y***97 | Lighting Group-Front | 1 |
2y2299 Starting Motor Gp-Electric
| 2Y***99 | Starting Motor Group-Electric | 1 |
2y2300 Starting Motor Gp-Electric
| 2Y***00 | Starting Motor Group-Electric | 1 |
7n0718 Switch As-Disconnect
| 7N***18 | Switch As-Disconnect; -Battery-Ground Level | 1 |
3k1650 Switch As-Dash Light
| 3K***50 | Switch As-Light; -Floodlights | 1 |
7n4160 Switch Gp-Heat Start
| 7N***60 | Switch Group | 1 |
5y0629 Wiring Gp-Supplemental Steering
| 2Y***80 | Lamp | 1 |
| 2Y***42 | Lens-Red | 1 |
| 2Y***44 | Socket | 1 |
Steering And Braking System
1v2699 Brake Gp-Parking
| 1V***99 | Brake Group-Parking; Parking Brake Group | 1 |
6w5611 Brake Gp-Parking
| 6W***11 | Brake Group-Parking; Parking Brake Group | 1 |
6w5610 Brake Gp-Parking
| 1V***99 | Brake Group-Parking; Parking Brake Group | 1 |
| 6W***10 | Brake Group-Parking | 1 |
| 6W***11 | Brake Group-Parking; Parking Brake Group | 1 |
6k7261 Chamber As-Brake
| 6K***61 | Chamber As-Brake | 1 |
8v3298 Control Gp-Brake-Part 1 Of 4
| 8V***98 | Control Group-Brake | 1 |
8v3298 Control Gp-Brake-Part 4 Of 4
| 8V***98 | Control Group-Brake | 1 |
8v3298 Control Gp-Brake-Part 3 Of 4
| 8V***98 | Control Group-Brake | 1 |
8v3298 Control Gp-Brake-Part 2 Of 4
| 8V***98 | Control Group-Brake | 1 |
7v9137 Control Gp-Brake
| 7V***37 | Control Group-Parking Brake | 1 |
2y6783 Control Gp-Steering-Part 2 0f 2
| 2Y***83 | Control Group-Steering | 1 |
2y6783 Control Gp-Steering-Part 1 Of 2
| 2Y***83 | Control Group-Steering | 1 |
4v5414 Cylinder Gp-Air Hydraulic
| 4V***14 | Cylinder Group-Air Over Hydraulic | 1 |
7j9838 Cylinder Gp-(Change 03)- 2 Required
| 7J***38 | Cylinder Group-Steering | 1 |
7j9838 Cylinder Gp-Steering
| 7J***38 | Cylinder Group-Steering | 1 |
2y3790 Horn As-Air
| 2Y***90 | Horn Group-Air | 1 |
7v8918 Horn Gp-Air
| 7V***18 | Horn Group-Air | 1 |
5y0627 Lines Gp-Supplemental Steering
| 5Y***27 | Lines Group-Secondary Steering; Lines Gp-Supplemental Steering | 1 |
2y6400 Pump Gp-Steering Column
| 2Y***00 | Pump & Steering Column Group | 1 |
8j1568 Pump Gp-Gear
| 8J***68 | Pump Group-Gear | 1 |
2y6399 Pump Gp-Metering-Steering
| 2Y***99 | Pump Group-Metering | 1 |
5y0668 Steering Ar-Supplemental
| 5Y***27 | Lines Group-Secondary Steering; Lines Gp-Supplemental Steering | 1 |
| 5Y***29 | Wiring Group-Secondary Steering; Wiring Gp-Supplemental Steering | 1 |
| 5Y***68 | Steering Ar-Secondary | 1 |
2y7136 Tank Gp-Hydraulic
| 2Y***36 | Tank Group-Hydraulic | 1 |
2y7104 Valve As-Brake Foot Control
| 2Y***04 | Valve As-Brake Foot Control | 1 |
7k2738 Valve As-Park & Secondary
| 7K***38 | Valve As-Park & Secondary; (Park & Secondary) | 1 |
8j0505 Valve Gp-Basic
| 8J***05 | Valve Group | 1 |
6j6218 Valve Gp-Neutralizer
| 6J***18 | Valve Group | 1 |
7j9969 Valve Gp
| 7J***69 | Valve Group | 1 |
7j9976 Valve Gp-Diverter
| 7J***76 | Valve Group-Diverter | 1 |
8j0508 Valve Gp-Neutralizer
| 8J***08 | Valve Group-Neutralizer; (Neutralizer) | 1 |
8j0441 Valve Gp-Selector
| 8J***41 | Valve Group-Selector | 1 |
J0430 Valve Gp-Steering
| 8J***30 | Valve Group-Steering | 1 |
930T serial number reference
The serial tag on a 930T is a riveted metal plate on the loader frame, typically on the left side of the front frame near the operator station/articulation area - this predates Cat's later 17-character PIN format used on newer machines. Read the first three characters as the model/block prefix (for example 17B or 57Z) and the digits that follow as the production sequence number within that block.
| Prefix | Identifies | Notes |
|---|---|---|
| 17B | 930T Wheel Loader | Factory parts and service literature for this prefix covers roughly 17B01000 and up, powered by the Cat 3304 diesel engine. A running electrical/wiring update partway through the block, from about 17B2000 up, is documented separately as the Series II wiring version. Build years are not confirmed in available literature - check with a dealer or the factory service information system for an exact date. |
| 57Z | 930T Wheel Loader (same block also catalogued under the 930R name) | Factory literature for this prefix spans several manual volumes, running from 57Z00001 up through 57Z04000 and up, powered by the Cat 3304 diesel (later manual volumes reference the 3304B variant, with turbocharger service procedures called out for it). The same serial block shows up in factory parts and service documentation under both the 930R and 930T model names - confirm with a dealer which nameplate applies to your specific unit. |
Frequently asked questions
What engine does the Caterpillar 930T use?
The 930T runs Caterpillar's own 3304 diesel, offered in naturally aspirated and turbocharged form across its production run. The naturally aspirated version is documented at 100.6 hp (75 kW) gross from 7.0 L (427 cu in) displacement; turbocharged units are rated higher, though a distinct 930T turbo horsepower figure is not separately published. Both versions are mechanically governed with no electronic engine controls.
What is the operating weight of the Caterpillar 930T?
Naturally aspirated 930T units on the 57Z serial block are documented around 9.6 tonnes (21,200 lb) empty. Caterpillar's literature does not publish a dedicated 930T-only weight table separate from the shared 930/930R block of the same era, so treat this as a class figure rather than a fixed spec, and confirm the exact figure against the individual machine's rating plate and configuration.
What replaced the Caterpillar 930T?
Within its own generation, part of the 930T's serial run (57Z prefix) is grouped with the 930R nameplate in Caterpillar's own parts books, pointing to a rename or parallel marketing rather than a new design. Further out, the platform moved on to the electronically controlled 930G, 930H, 930K, and 930M generations, and eventually today's Next-Gen 930 (C7.1 engine), all built around different, newer powertrains the 930T never had.
What 930T owners discuss
What do owners and mechanics say about how the torque converter and powershift transmission behave on a 930T?
The torque-converter-and-powershift combination on this generation of Cat loader is generally described as tough but unforgiving of neglected fluid. A basic health check is a stall test: hold the machine against the brakes at full throttle and read converter output speed. For this era of Cat power train, a healthy engine, converter, drivetrain and brake system working together typically stall out somewhere around 2200 rpm, give or take about 100, though the exact figure varies by engine rating and converter combination, so check it against the machine's own test spec rather than treating that as gospel. Sluggish response or bogging down in third and fourth gear on a grade, needing a downshift to second just to keep moving, points to a tired converter or worn clutch packs rather than an engine problem. Hard or delayed shifts are traced most often to degraded transmission oil rather than a mechanical fault. Cat's own guidance for this class of powershift and wet-clutch service calls for a TDTO-spec oil, not straight engine oil, and regular fluid and filter changes matter more than anything else for keeping this transmission alive.
What's the recurring engine complaint on the 3304 in a 930T?
On high-hour 3304s the recurring complaint is coolant finding its way into the crankcase. The precombustion chambers corrode and develop pinholes if coolant condition is allowed to lapse and rust takes hold in the jacket, and the o-ring seals under the bottom of the cylinder liners are a second common leak path. A milky dipstick, a mayonnaise-like film under the oil filler cap, or a coolant tank that keeps needing topped off are the tell-tales. A less obvious symptom some owners chase for a long time is a block heater that keeps failing after cooling-system work; if a prior water pump failure let oil get into the water jacket, it can quietly kill heater element continuity from then on. Because the real fix usually means pulling the head or liners, the advice from experienced owners is to test coolant condition on a fixed interval rather than wait for symptoms to show up.
Do the naturally aspirated and turbocharged 3304 versions of the 930T behave differently, and what about the injection pump?
The 3304 in the 930T was built in both naturally aspirated and turbocharged form, and the two pull noticeably differently under load, so don't assume two 930Ts perform the same without checking which engine configuration is actually under the hood. Either way it runs a mechanically governed inline injection pump with a scroll or sleeve metering design driven straight off the gear train, with no electronics involved. The classic complaint is a fuel rack that sticks, either in the off position so the engine won't fuel, or less often at full fuel, which can cause a runaway. Uneven fuel delivery across injector lines, fuel showing up in the pump's own oil cavity, or metal turning up in a fuel filter are treated as warning signs that the pump needs to come off for a shop with a proper calibrated test stand rather than a field rebuild.
What wears out on the brakes and final drives, and is it a safety concern?
Brakes on this generation of Cat loader are wet, band-type units riding inside the final drive housings, not discs. The recurring maintenance point is band adjustment: if the bands are set too tight when released, they drag continuously and wear grooves into the brake drums, so adjustment gets checked on a schedule rather than left alone. Leaking wheel or master cylinders are also a known wear item on machines this age, and more than one owner has cured a persistent seep by rebuilding the cylinders and switching to a silicone-based brake fluid. Brake performance on a loader this size is safety-critical, so have your dealer verify final drive brake band adjustment and hydraulic brake condition rather than relying on pedal feel alone.
What are the typical wear patterns on the pins, bushings and wheels?
Two wear points come up again and again outside the powertrain. Articulation and lift-linkage pins and bushings are a precision press-fit from the factory, and both over-greasing, which packs abrasives around the joint and raises operating temperature, and under-greasing, which lets degraded grease trap grit, accelerate wear. A steady greasing interval beats an occasional heavy shot. Play or a clunk in the articulation joint means the bushings are due for boring out and replacement with pressed-in bronze bushings, not just more grease. The other point is the multi-piece lock-ring wheels: rust building up between the lock ring and the rim is the usual reason a tire won't hold air. The fix is cleaning the rust off, reseating with mounting soap or grease on the bead and o-ring, and reassembling carefully. Owners treat lock-ring wheels with more caution than a modern one-piece rim because of how they can separate violently if reassembled wrong.
Does the 930T have common electrical or sensor problems?
This is a largely mechanical machine from an era with no factory electronic sensors or engine control module, so electrical complaints really come down to the basic charging circuit and instrument gauges. Reported issues are ordinary: an alternator connector left unplugged after service so the charging light stays on, corroded or loose battery cable ends mimicking a charging fault, and oxidized ammeter or gauge connections causing erratic readings. There's no diagnostic code system to lean on. Troubleshooting is multimeter-and-wiring-diagram work, checking the excitation circuit and connections point by point rather than chasing a sensor fault.
What should you check when buying a used 930T?
Confirm which serial prefix and engine configuration you're actually looking at. Naturally aspirated versus turbocharged 3304 changes performance expectations, and the two known serial blocks for this model aren't guaranteed to be built the same way under the sheet metal, so match the machine against its own parts book rather than assuming. Pull the dipstick and check for a milky look, and watch whether the coolant tank needs frequent topping off, either of which points toward head or liner trouble. Run a stall test to gauge engine, converter and transmission health together, and cycle every gear watching for slow or delayed engagement. Check final drive brake band adjustment and look for fluid seeping from the wheel or master cylinders. Work the articulation joint for play and inspect lift-arm and bucket pins for looseness. Walk the tires and lock-ring wheels looking for rust at the ring-to-rim joint. Ask for maintenance records to confirm coolant, transmission oil and grease intervals were actually kept, since this machine's longevity depends heavily on that discipline. Because brakes and wheel assemblies are safety items on a machine this size, have your dealer verify final drive brake condition and lock-ring wheel integrity before putting it to work.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific 930T part?
Search live OEM part data, check fitment, and cross-reference alternatives with Heavy Parts AI.