Caterpillarengine - industrialpumper

Caterpillar SPT343

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar SPT343 is a truck-mounted pumper: an oilfield well-service power package, not a self-propelled or tracked machine. It pairs a Cat 3512B V-12 diesel (ADEM II electronic control) with a driven water pump group, mounted on a customer-supplied truck deck and run from a Universal Remote Control Console (URCC) tethered by roughly a 38 m (125 ft) cable. Per parts-catalog cross-reference across pistons, crankshafts, water pumps, fuel injectors, and speed sensors, the well-stimulation rating runs roughly 1490-1680 bkW (2000-2250 bhp) at 1900 rpm depending on series; no single factory spec-sheet page for the SPT343 itself turned up, so treat that figure as catalog-derived rather than a published rating. Known PIN prefixes are 3KD and 5XZ, marking distinct build runs. The SPT343 sits in Caterpillar's Pumper series alongside the skid-mounted SPS343 and trailer-mounted SPF343/SPF343C, all sharing the same engine and pump-group core across three mounting configurations. The separate 342-family (SPS342/SPT342) is a different lineage built around the mechanical 3412C, not a direct predecessor.

Across the Pumper series, the shift from mechanically governed engines (3412C on the 342-family) to the ADEM II-controlled 3512B on the 343-family brought electronic fuel control, better diagnostics, and tighter injection timing suited to the high, cyclic loads of well stimulation. Caterpillar has not published a documented 1:1 successor to the SPT343, and no factory-issued operating weight exists for it, since it is a power package integrated onto a customer truck rather than a complete vehicle. In the used and parts market, that makes PIN-prefix identification (3KD vs 5XZ) the key to correct part interchange: 3512B engine cores, driven water pump groups, and URCC control consoles from SPT343 units are commonly pulled and cross-applied to sibling SPS343/SPF343 builds, so verifying prefix and series before ordering major components matters more than with a conventional self-propelled 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 SPT343 specifications

Engine

ApplicationTruck mounted pumper unit (oilfield well-service pump package built on a Cat industrial diesel base engine)
Engine familyCat 3512B V-12 industrial diesel — parts catalogs and component cross-reference lists group the SPT343 with the 3512B rather than the 3412C used on the earlier SPS342/SPT342 pumper siblings. Exact rated output for this specific unit is not published in available literature — confirm rating and emissions certification for the serial range with a Cat dealer
ConfigurationV-12, 4-stroke-cycle diesel, twin turbocharged-aftercooled architecture typical of the 3500-series family
Displacement51.8 L (3,161 in³) — standard 3512B family displacement (170 mm bore x 190 mm stroke)
Cylinders12
Emissions tierNot documented for this unit in available literature

Weights

Operating weightNot published — Caterpillar did not release a standalone operating/shipping weight figure for the SPT343 pump module in available literature
Shipping weightNot documented
Ground pressureNot applicable / not published — unit is truck mounted, not a tracked or self-propelled ground-bearing machine

Dimensions

Overall dimensionsNot published as a standalone spec — the SPT343 pump package is mounted on a truck chassis, so overall transport length/width/height depend on the host chassis and are not documented separately by Caterpillar
Wheelbase / track gaugeNot applicable — determined by the mounting truck chassis, not the pump unit
Ground clearanceNot documented

Performance

Remote control rangeUniversal Remote Control Console operates the deck engine, gear selection, throttle, pump delivery rate and emergency shutdown from up to 38 m (125 ft) away via a connecting cable
Travel speedNot applicable / not published — governed by the host truck chassis, not the pump package
Pump delivery rate / pressureNot documented in available public literature for this unit
GradeabilityNot published

Service capacities (summary)

Fuel tankNot documented in available public literature for this unit
Hydraulic systemNot documented — figures published for related trailer-mounted pumper siblings are not confirmed to apply to the SPT343 and are not carried over
Engine oilNot documented for this specific unit
Cooling systemNot documented for this specific unit

Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.

SPT343 fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter) - Cat 3512B V-12 diesel, industrial/pumper applicationApproximately 132-182 L (35-48 US gal) depending on oil pan configuration; the Petroleum Dry-Manifold/SCAC spec sheet for this engine lists 151.4 L (40 US gal). One pumper-specific parts listing cites a much lower 20 L (5.3 US gal) figure that could not be corroborated and looks inconsistent with the engine's known sump sizes - treat as unverified.Cat DEO (Diesel Engine Oil), SAE 15W-40 for general/warm-climate service; Cat DEO SAE 10W-30 for cold-start climates. Match to the emissions tier called out on the engine's data plate before topping off.
Cooling system (engine jacket water, radiator/heat exchanger as fitted)Approximately 156.8-181.7 L (41.4-48 US gal); the closest-matching Petroleum Dry-Manifold industrial spec sheet lists 181.7 L (48 US gal). Exact figure varies by radiator/heat-exchanger package fitted to the individual pumper skid.Cat ELC (Extended Life Coolant), premix or concentrate diluted per climate; Cat DEAC accepted as an alternative on non-ELC-filled units. Use the low-temperature (arctic) premix in sub-freezing climates per the coolant's own freeze-point rating.
Fuel tankNot specified in the 3512B industrial engine documentation. The SPT343 is delivered as an engine/pump power package; the fuel tank is supplied and sized by the truck or skid body-builder, not by Caterpillar, so no factory refill figure applies.No. 2-D diesel fuel per ASTM D975 (or equivalent EN 590), low-sulfur/ultra-low-sulfur grade matching the engine's emissions certification.
Transmission / final drives / hydraulic system and tank / axles-differentialsNot applicable - the SPT343 is a stationary/truck-mounted industrial engine package (Cat 3512B) that drives an external pump via direct coupling or PTO. It carries no Cat-supplied transmission, final drive, axle, or hydraulic reservoir of its own; those items belong to the pump end or the host truck chassis and are outside the Cat engine OMM.Not applicable for this package.
Grease points (fan hub, idlers, accessory drive brackets - spec only)Per-point quantities not published for this application; follow the lubrication schedule in the OMM for grease-point locations and intervals.Cat Multipurpose Grease (Cat MPGM), NLGI Grade 2, or Cat Ultra 5 Moly for extreme-pressure points where called out.

Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.

Caterpillar SPT343 maintenance schedule

Service intervalTasks
Every 10 h
  • Check engine oil level before daily startup
  • Check cooling system coolant level at the deck engine
  • Inspect air starting motor lubricator oil level and top off
  • Check engine air cleaner service indicator, service element if in red zone
  • Drain water and sediment from the fuel/water separator
  • Check battery charger operation weekly
Every 250 h
  • Change engine oil and oil filter
  • Pull an engine oil sample for analysis
  • Pull a Level 1 cooling system coolant sample
  • Replace fuel filters
  • Inspect and adjust drive belts
  • Inspect hoses and clamps for cracking, leaks, or loose fittings
  • Check battery electrolyte level
  • Inspect and adjust valve lash and fuel injector settings (initial adjustment)
Every 500 h
  • Test the engine air shutoff device for proper function
  • Pull a Level 2 cooling system coolant sample on new, refilled, or converted systems
  • Check turbocharger boost pressure and exhaust temperature trends against baseline
  • Inspect speed sensor wiring and connectors for chafing or corrosion
Every 1,000 h
  • Clean exterior of engine and radiator/aftercooler core of accumulated dirt and oil film
  • Clean and inspect the engine crankcase breather
  • Inspect the driven water pump group for shaft seal weeping and bearing play
  • Check deck engine mounting isolators and pump drive coupling alignment
Every 2,000 h
  • Clean the air starting motor lubricator bowl
  • Inspect the crankshaft vibration damper for fluid leakage or damage
  • Inspect the turbocharger for shaft play and housing cracks
  • Inspect the URCC cable, reel, and junction box connectors for wear from repeated deployment
  • Check the pump gearbox lubricant condition
Every 4,000 h
  • Re-inspect and adjust valve lash and fuel injector settings
  • Borescope-inspect cylinder liners and piston condition where accessible
  • Inspect fuel injection pump timing components
Every 6,000 h
  • Change engine coolant (extended life coolant) and inspect the cooling system for scale
  • Replace water temperature regulators
  • Inspect the alternator and starting motor for brush wear and output
  • Inspect the turbocharger cartridge and replace if outside wear limits

Servicing the SPT343 beyond the schedule

Predictive Maintenance & Fluid Analysis

Pull engine oil and coolant samples every 250 hours from the 3512B and trend them rather than reading pass/fail in isolation; well-stimulation duty cycles load the engine harder and faster than standby power, so wear-metal trends move quicker than on a genset. Track turbocharger boost and exhaust pit temperatures against a baseline reading, and monitor ADEM II fault history for injector or speed-sensor drift. Include pump drive coupling vibration and water pump group bearing readings in the same sampling routine.

Corrective & Common Repairs

Common failure points on SPT343 units trace back to the high-cycle nature of well-stim pumping: fuel injector wear from repeated load transients, turbocharger shaft and seal wear from sustained high boost, and driven water pump shaft-seal weeping under pressure cycling. URCC cable and junction-box connectors take repeated field deployment and are a frequent source of lost remote control at the wellsite. Speed sensor faults on the deck engine and pump drive are also a recurring corrective item worth checking before chasing bigger issues.

Overhaul & Rebuild Points

Top-end work on the 3512B (cylinder heads, injectors, valve train) is best scheduled off oil-analysis and valve-lash trend data rather than a fixed hour number, given how duty-cycle severity varies by well site. Major rebuild points include crankshaft and main bearing inspection, driven water pump gearbox and seal overhaul, and turbocharger cartridge replacement. Because the SPT343 has no ground-engaging undercarriage, also inspect the deck mounting frame and pump drive coupling alignment at overhaul rather than track or roller components.

Seasonal & Environment Servicing

Wellsite duty exposes the SPT343 to heavy dust and sand ingestion, so air cleaner service intervals should tighten in dry basin work regardless of the standard schedule. Cold-weather sites need block heater use and cold-weather fuel/coolant protection before startup, since the deck engine sees no enclosure. Protect the URCC cable, reel, and connectors from standing water and drilling mud at the wellsite, and check the mounting frame and pump group hardware for corrosion after wash-downs or saltwater-adjacent operation.

SPT343 common service parts

Part numberPart
5P-2645Elbow-Unfiltered Fuel From AdapterCheck fitment →
1D-4540Bolt,Machine Fuel Filter MountingCheck fitment →
134-6307Filter Element As-FuelCheck fitment →
177-2059Filter Element As-AirCheck fitment →
9T-0973Filter-OilCheck fitment →

Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.

SPT343 fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
DECK ENGINE WARNING (red lamp, URCC)Deck (pump) engine has low oil pressure, low coolant level, high oil temperature, or high coolant temperatureLow engine oil level or failing oil pump, low coolant level, blocked cooling airflow, or an overloaded engine running hotStop the deck engine, check oil level and pressure and coolant level and temperature before restarting; do not resume pumping until cause is cleared
DECK TRANSMISSION WARNING (red lamp, URCC)Low oil pressure or high oil temperature in the deck (pump) transmissionLow transmission fluid level, plugged cooler, or transmission overheating under sustained loadStop pump operation, check transmission fluid level and condition, inspect the transmission oil cooler before restarting
NEUTRAL TRIPPED WARNING (URCC)Pump discharge overpressure sensed by the discharge pressure module, or EMERGENCY KILL initiated by that moduleDischarge line blocked or valve closed causing overpressure, relief valve malfunction, or a manual emergency-kill triggerVerify discharge valve position and line pressure, inspect the relief valve, then reset through the discharge pressure module before restarting
Discharge pressure module overpressure shutdownPump discharge pressure exceeded the programmed limit on the digital psi readout, tripping an automatic shutdownDownstream restriction, closed or malfunctioning discharge valve, faulty pressure relief settingReduce throttle, confirm the discharge valve is open, check the relief valve setting, then reset the module
CID 100 - FMI 01/03/04 (Engine Oil Pressure)Engine oil pressure signal below normal, or sensor circuit voltage abnormalLow oil level, worn oil pump, plugged filter, or a faulty oil pressure sensor or wiringCheck oil level and mechanical pressure gauge reading, inspect sensor wiring and connector, confirm with Cat ET
CID 110 - FMI 00 (Engine Coolant Temperature)Engine coolant temperature above normal operating rangeLow coolant level, blocked radiator or heat exchanger, failed thermostat, or water pump problemCheck coolant level and cooling system condition, inspect water pump and thermostat, verify sensor reading against a manual gauge
CID 168 - FMI 02/04 (Battery/System Voltage)System voltage reading abnormal, either erratic, below normal, or above normalWeak or failing battery, charging system fault, corroded or loose connectionsLoad-test the battery, check alternator output, inspect ECM ground straps and connections
CID 190 - FMI 02/08 (Engine Speed/Timing Sensor)Abnormal or erratic engine speed signal, or timing sensor faultFaulty or contaminated speed/timing sensor, damaged wiring harness, incorrect sensor air gapInspect and clean the sensor, check the harness for damage, verify signal with Cat ET

Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.

SPT343 attachments & work tools

Machine type / attachment applicability

The SPT343 is a Caterpillar Pumper-series industrial power-unit package, not an excavator, loader, or other ground-engaging machine. It does not mount buckets, blades, forks, or quick-couplers; its only real options are mounting/chassis format, operator-interface console, driven-pump coupling, and guarding.

Mounting / chassis format

The Pumper family is offered in truck-mounted (SPT), skid-mounted (SPS), and trailer/frame-mounted (SPF) formats built around a common power-unit concept. The SPT343 designation itself is the mounting option: the power unit and pump group are installed on a truck deck rather than a skid base or trailer frame.

Operator control console

Configurations use a Universal Remote Control Console (URCC) that operates independently from the deck-mounted power unit, with a control cable run of up to about 38 m (125 ft). The console handles deck-engine start/stop, gear or speed selection, throttle control, pump delivery-rate adjustment, emergency shutdown, and warning/indicator lamps for monitored parameters.

Driven water-pump group (output coupling)

The engine's output drives a dedicated water-pump group through a factory gear-type coupling rather than a field-installed work tool. This pump group is integral to the Pumper package and is not offered as an interchangeable ground-engaging attachment.

Engine package / generation options

The SPT343 power package is built around the Cat 3512B V-12 diesel, per parts-catalog cross-reference spanning more than one serial-number range (3KD and 5XZ), pointing to more than one production run of the same base engine. Verify the exact engine build against the unit's own serial prefix with a dealer.

Guarding and enclosure

As an industrial power-unit package, guarding is limited to standard engine items such as the crankcase breather group and drive-coupling guards, not machine-level ROPS/FOPS or ground-engaging guarding. No factory bucket, blade, or coupler guarding options apply to this product type.

All SPT343 assemblies by section

Every catalogued assembly group for the Caterpillar SPT343. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Air Inlet And Exhaust System
107-7196 Aftercooler Gp-Treated Water
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold2
10***96Aftercooler Group-Treated Water1
16***89Support As1
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8n-3378 Air Cleaner Gp
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold4
0S***09Bolt (3/4") Filler Tube Assembly To Transfer Drive Case30
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)6
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174-1419 Air Cleaner Gp
00***49Connector-Second Type1
00***43Elbow; (12.7mm Id)1
00***40Connector; (Flared)1
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174-9487 Lines Gp-Air
10***45Manifold-Exhaust; (Front, Rh)1
10***46Manifold-Exhaust; (Intermediate, Rh)4
10***47Manifold-Exhaust; (Front, Lh)1
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203-9561 Lines Gp-Air
11***14Washer; (10.3x18.3x2.66-mm Thk)48
13***21Washer; (13.5x25.5x3-mm Thk)4
14***41Manifold-Exhaust; (Front, Rh)1
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264-6337 Manifold Gp-Exhaust
15***98Seal-O-Ring1
21***50Seal-O-Ring1
21***27Shaft1
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188-8616 Manifold Gp-Exhaust
15***85Fitting As-Exhaust1
15***67Muffler1
18***16Manifold Group-Exhaust1
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216-1646 Muffler Gp
0S***14Bolt (.25" Diameter-.50" Long)3
0S***15Bolt 19 mm (.75 In.) Long Return Air Console To Enclosed Rops1
11***43Plate1
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215-2706 Shutoff As-Air -Inlet
12***46Shutoff Group-Air; -Inlet1
21***06Shutoff As-Air; -Inlet1
5N***30Gasket1
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173-2865 Shutoff Gp-Air
17***65Shutoff Group-Air1
21***07Actuator As; -Hydraulic1
21***18Bolt; (10-24x3-In)2
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122-5946 Shutoff Gp-Air -Inlet
00***21Tee-Union1
03***78Connector-Filtered Fuel To Adapter1
03***62Elbow, Swivel Nut 45 Degrees (-6)2
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230-6309 Shutoff Gp-Air -Inlet, Rh
21***07Actuator As; -Hydraulic1
21***18Bolt; (10-24x3-In)2
21***20Seal-O-Ring1
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274-5754 Shutoff Gp-Air
12***75Bolt; (3/8x16x1.75-In)(Compressor)8
12***76Plate-Clamp; (Compressor)4
15***41Seal-O-Ring; (Compressor)1
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272-7097 Shutoff Gp-Air -Lh
15***15Ring-Retaining1
21***28Sleeve As1
21***29Spring1
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272-7098 Shutoff Gp-Air -Inlet, Rh
00***21Tee-Union1
03***78Connector-Filtered Fuel To Adapter1
03***62Elbow, Swivel Nut 45 Degrees (-6)2
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272-7099 Shutoff Gp-Air -Inlet, Lh
12***36Gasket; (Turbocharger)2
18***71Flange-Half4
18***75Flange-Half4
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230-6310 Shutoff Gp-Air -Inlet, Lh
21***07Actuator As; -Hydraulic1
21***18Bolt; (10-24x3-In)2
21***20Seal-O-Ring1
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230-6308 Shutoff Gp-Air -Lh
15***15Ring-Retaining1
18***24Seal1
21***28Sleeve As1
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140-2015 Shutoff Gp-Air -Hydraulic
00***21Tee-Union1
03***78Connector-Filtered Fuel To Adapter1
03***62Elbow, Swivel Nut 45 Degrees (-6)2
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272-7096 Shutoff Gp-Air -Rh
15***15Ring-Retaining1
21***28Sleeve As1
21***29Spring1
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214-5548 Shutoff Gp-Air
21***48Shutoff Group-Air1
21***07Actuator As; -Hydraulic1
21***18Bolt; (10-24x3-In)2
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230-6307 Shutoff Gp-Air -Rh
15***15Ring-Retaining1
18***24Seal1
21***28Sleeve As1
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176-3231 Turbocharger Gp
15***41Valve Group-Solenoid; -Air Shutoff1
17***31Turbocharger Group1
7T***45Manifold-Solenoid Valve1
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303-8128 Turbocharger Gp
21***20Spindle1
21***21Spacer1
21***13Seal-O-Ring1
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152-2700 Valve & Mtg Gp-Air Shutoff
0S***19Bolt,Machine Gear Retaining Part Of Kit P/N 1w***462
11***78Adapter1
15***00Valve & Mtg Group-Air Shutoff1
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Basic Engine
2w-0582 Air Compressor Gp
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold6
0S***19Bolt,Machine Gear Retaining Part Of Kit P/N 1w***466
1W***30Pan1
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174-1416 Air Compressor Gp
00***12Connector-Flared1
01***19Bushing-Pipe; (37-Deg)1
03***69Elbow-Flared; (1/2-14 Nptf)4
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1w-8924 Air Compressor Gp
1D***40Bolt,Machine Fuel Filter Mounting2
1W***24Air Compressor Group1
2S***23Cover As; (Governor)1
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274-2031 Base Gp-Valve Cover
24***41Base Group-Valve Cover; -Rocker Arm1
27***31Base Group-Valve Cover1
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120-7413 Base Gp-Valve Cover
11***38Spacer; (17.5x30.94x98-mm)1
11***39Spacer; (17.5x30.94x98-mm)1
12***39Washer-Spring1
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247-8341 Base Gp-Valve Cover
11***38Spacer; (17.5x30.94x98-mm)1
11***39Spacer; (17.5x30.94x98-mm)1
12***39Washer-Spring1
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106-4586 Camshaft Gp
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold4
0S***09Bolt (3/4") Filler Tube Assembly To Transfer Drive Case2
10***86Camshaft Group1
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274-7771 Cover Gp-Cylinder Block -Central Structure
0S***88Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter4
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly8
0S***95Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard4
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175-3785 Cover Gp-Cylinder Block
0S***88Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter4
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly8
0S***95Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard4
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163-1472 Cover Gp-Front Housing -Lh
16***72Cover Group-Front Housing; -Lh1
1A***29Bolt (1-1/8") Tube Assembly To Transfer Drive Case17
23***46Seal-O-Ring1
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163-4269 Cover Gp-Flywheel Housing
0S***91Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***823
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly36
0T***55Bolt; (3/8-16x4.25-In)(Location S)1
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101-0831 Cover Gp-Valve Mechanism
10***31Cover Group-Valve Mechanism1
10***97Cover1
1A***79Capscrew (5/16 - 18 Nc X 1 1/2 Gd5, Hex)4
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265-8048 Cover Gp-Valve Mechanism
1A***79Capscrew (5/16 - 18 Nc X 1 1/2 Gd5, Hex)4
26***48Cover Group-Valve Mechanism1
26***49Cover1
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8n-7103 Crankshaft Gp
12***45Bolt As; (5/8-18x4.25-In)(Counterweight)36
12***86Crankshaft As1
14***31Bearing As-Main; (Standard)7
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100-8026 Cylinder Block As
10***26Cylinder Block As1
21***26Liner-Cylinder Block12
22***96Cap-Crankshaft Bearing7
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106-2779 Cylinder Block As
10***79Cylinder Block As1
22***96Cap-Crankshaft Bearing7
4W***13Plug; (2-1/4-12 Thd)3
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240-6651 Cylinder Block Gp
0S***95Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard2
10***26Cylinder Block As1
10***98Bearing-Camshaft14
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115-5154 Cylinder Block Gp
03***42Seal-O-Ring; (11.89mm Id)6
10***79Cylinder Block As1
11***54Cylinder Block Group1
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100-8027 Cylinder Block Gp
0S***95Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard2
0T***02Bolt; (3/8-16x0.625-In)(Shield To Head)12
10***26Cylinder Block As1
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161-2508 Cylinder Head As
13***06Guide-Valve; (Standard)(Intake)4
14***82Guide-Valve; (0.508mm Os Od)(Exhaust)0
15***12Cylinder Head As1
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242-5328 Cylinder Head As
13***06Guide-Valve; (Standard)(Intake)2
14***82Guide-Valve; (0.508mm Os Od)(Exhaust)0
19***95Guide-Valve; (Standard)(Exhaust)2
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154-1612 Cylinder Head As
13***07Insert-Valve Seat; (Standard)(Intake)2
13***08Insert-Valve Seat; (Standard)(Exhaust)2
14***81Insert-Valve Seat; (0.51-mm Os Od)(Intake)0
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101-0830 Cylinder Head Gp
10***30Cylinder Head Group1
10***77Spring-Valve; (Inner)4
10***80Spring-Valve; (Outer)4
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317-2440 Cylinder Head Gp
15***63Washer; (10.35x16x2-mm Thk)2
1A***29Bolt (1-1/8") Tube Assembly To Transfer Drive Case48
22***01Plug2
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201-4257 Cylinder Head Gp
17***71Damper Group1
1N***82Adapter1
20***57Cylinder Head Group1
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145-3216 Cylinder Head Gp
13***06Guide-Valve; (Standard)(Intake)2
14***16Cylinder Head Group1
14***82Guide-Valve; (0.508mm Os Od)(Exhaust)0
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4w-7754 Damper Gp
0S***92Bolt--Cover To Flywheel Housing4
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly6
0T***55Bolt; (3/8-16x4.25-In)(Location S)1
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171-4571 Damper Gp
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold4
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly6
10***66Gear-Accessory Drive; (55-Teeth)1
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8n-9167 Drive Gp-Accessory -Lower, Lh
0T***55Bolt; (3/8-16x4.25-In)(Location S)1
14***97Bearing-Sleeve1
14***63Gear As-Idler; (53-Teeth)1
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107-7361 Drive Gp-Accessory -Upper, Rh
10***61Drive Group-Accessory; -Upper, Rh-Alternator1
17***13Locknut8
18***76Kit-Gasket1
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173-7675 Drive Gp-Accessory
17***75Drive Group-Accessory; -Lower, Lh1
1D***97Bolt 16.5cm(6.5in.)Long2
9H***60Bolt; (1/2-13x6.25-In)(1/2-13 Thd)6
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184-9968 Drive Gp-Power Take-Off
0S***85Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine16
18***68Drive Group-Power Take-Off1
5P***47Washer (Bracket To Valve Support)16
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214-6006 Fastener Gp-Front Housing
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)5
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly2
0T***55Bolt; (3/8-16x4.25-In)(Location S)1
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7w-0968 Flywheel Gp
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold4
10***64Gear As-Idler; (69-Teeth)(Camshaft)2
10***65Plate-Thrust1
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8n-7174 Gear Gp-Front -Standard Rotation
27***35Spacer; (13.87x21.34x11-mm Thk)2
28***74Guard As-Alternator1
8N***74Gear Group-Front; -Standard Rotation-Accessory Drive-Jacket Water Pump-Fuel Transfer Pump-Oil Pump Drive1
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124-8395 Gear Gp-Rear -Camshaft Drive
12***95Gear Group-Rear; -Camshaft Drive1
17***59Guard As-Belt; (Alternator)1
5P***66Capscrew; (Hex Hd) (1/2-13 Nc X 1 1/2) (Gd 8 Z)1
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7w-5780 Guard Gp-Belt -Alternator
18***84Guard As-Damper1
1P***15Grommet Assem.4
1V***38Nut; (3/8-16-Thd)6
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151-9228 Guard Gp-Belt -Alternator
0S***95Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard6
10***91Housing As-Flywheel1
15***28Guard Group-Belt; -Alternator1
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180-4785 Guard Gp-Damper
10***91Housing As-Flywheel1
18***85Guard Group-Damper1
1D***74Bolt (L.H. Side Flywheel Housing)6
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107-7177 Housing Gp-Flywheel
10***77Housing Group-Flywheel1
1D***74Bolt (L.H. Side Flywheel Housing)6
1D***93Bolt 5.5 In. (13.97 cm) Long12
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4p-5426 Housing Gp-Front -Accessory Drive
05***65Sleeve1
0S***71Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting4
14***16Belt-Serpentine; (Alternator)1
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7e-6872 Lifting Gp-Engine
05***65Sleeve1
0S***71Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting4
14***16Belt-Serpentine; (Alternator)1
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7e-4836 Mounting Gp-Alternator
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold1
0S***87Bolt-Bracket Assembly To Timing Gear2
0S***88Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter10
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8n-6164 Pan Gp-Oil -Front Sump
0T***02Bolt; (3/8-16x0.625-In)(Shield To Head)1
10***30Bearing-Connecting Rod; (Standard)1
10***31Bearing-Connecting Rod; (0.63-mm Us Id)0
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223-6363 Piston & Rod Gp
21***37Kit-Seal0
21***38Plate-Pressure; (Top)1
21***39Plate-Pressure; (Bottom)1
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281-6139 Piston & Rod Gp
21***37Kit-Seal0
21***38Plate-Pressure; (Top)1
21***39Plate-Pressure; (Bottom)1
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101-0829 Piston & Rod Gp
0T***02Bolt; (3/8-16x0.625-In)(Shield To Head)1
10***29Piston & Rod Group1
10***30Bearing-Connecting Rod; (Standard)1
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211-8744 Pump Gp-Gear
11***32Seal Group-Crankshaft; (Cw Rotation)1
11***33Seal Group-Crankshaft; (Ccw Rotation)1
21***44Pump Group-Gear1
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211-8745 Pump Gp-Gear
1D***66Bolt Bracket Assembly To Yoke20
21***45Pump Group-Gear1
5P***45Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate)20
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7w-3813 Seal Gp-Crankshaft
0L***70Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case2
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)2
0S***15Bolt 19 mm (.75 In.) Long Return Air Console To Enclosed Rops1
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7n-1863 Trunnion Gp-Engine
0L***70Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case2
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)2
0S***15Bolt 19 mm (.75 In.) Long Return Air Console To Enclosed Rops1
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195-1928 Valve Mechanism Gp
0L***70Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case2
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)2
0S***15Bolt 19 mm (.75 In.) Long Return Air Console To Enclosed Rops1
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277-0320 Valve Mechanism Gp
03***31Seal-O-Ring3
14***43Hose-Elbow1
18***07Clamp-Hose2
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224-9869 Valve Mechanism Gp
0L***70Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case2
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)2
0S***15Bolt 19 mm (.75 In.) Long Return Air Console To Enclosed Rops1
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Cooling System
108-5459 Connection Gp-Water -Outlet
10***59Connection Group-Water; -Outlet1
8T***64Plug-Pipe; (1/8-27-Thd)(Cylinder Head)2
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4w-5892 Cooler Gp-Engine Oil
4W***92Cooler Group-Engine Oil; Engine Oil Cooler Group1
8L***86Seal-O-Ring (Id=16.36mm); (16.36-mm Id)1
9S***85Plug--To Seal Hydraulic Pump To Sump Of Limit System1
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141-4109 Core Gp-Oil Cooler
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly2
11***74Valve As-Vent Line1
14***09Core Group-Oil Cooler; -Brake, Frame Mount-Transmission, Engine Mount-Tc, Bk, Hoist, Engine Mount1
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4w-4980 Core Gp-Oil Cooler -Engine
1Y***62Washer; (0.328x0.81x0.125-In Thk)2
2H***55Bolt 15.88mm(.625in.); 1.59cm(.62in.)Lg.2
4P***05Regulator-Water Temperature; (35-Deg C)2
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7e-4711 Housing & Regulator Gp
1A***29Bolt (1-1/8") Tube Assembly To Transfer Drive Case4
21***28Housing1
21***29Adapter1
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216-6217 Housing & Regulator Gp -Aftercooler
11***17Clip1
13***96Valve-Ball1
14***07Elbow4
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208-2253 Lines Gp-Aftercooler Water
03***41Elbow; (7/16-20 Str Thd)1
16***05Support7
16***06Clamp7
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205-8551 Lines Gp-Coolant
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly30
0S***18Bolt; (5/16-18x1-In)(Hydraulic Pump)46
11***76Manifold; (Rear, Lh)1
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183-2900 Lines Gp-Water -Aftercooler
03***78Connector-Filtered Fuel To Adapter1
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold8
0L***70Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case6
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135-1072 Lines Gp-Water -Upper
03***67Connector-Flared -- Adapter To Hose As.2
03***68Elbow (For Use With Shallow Pan)2
0L***78Bolt,Machine Governor And Decelerator Control2
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158-6603 Lines Gp-Water -Engine, Transmission Coolers
03***67Connector-Flared -- Adapter To Hose As.2
03***68Elbow (For Use With Shallow Pan)2
0L***78Bolt,Machine Governor And Decelerator Control2
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7c-8122 Lines Gp-Water -Bypass
03***67Connector-Flared -- Adapter To Hose As.2
03***68Elbow (For Use With Shallow Pan)2
0L***78Bolt,Machine Governor And Decelerator Control2
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175-3783 Lines Gp-Water -Lower
03***78Connector-Filtered Fuel To Adapter1
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold6
0L***70Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case6
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161-4087 Lines Gp-Water -Turbocharger
03***78Connector-Filtered Fuel To Adapter1
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold6
0L***70Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case6
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201-1854 Mounting Gp-Radiator
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly7
1T***32Seal-O-Ring; (234.54mm Id)1
1T***65Bolt 2.54 cm (1" Long)1
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9y-8175 Pump Gp-Auxiliary Water
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)4
12***00Bearing-Sleeve1
21***79Shaft; (14-Teeth)1
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212-8166 Pump Gp-Auxiliary Water
16***78Pump Group-Water; -Jacket Water1
1H***78Seal-O-Ring1
21***66Pump Group-Auxiliary Water1
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291-4311 Pump Gp-Auxiliary Water
14***62Seal-O-Ring1
21***77Pump Group-Water1
29***11Pump Group-Auxiliary Water; -Fresh Water1
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7e-9782 Pump Gp-Auxiliary Water
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly7
1T***65Bolt 2.54 cm (1" Long)1
21***66Pump Group-Auxiliary Water1
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2w-9729 Pump Gp-Water
0S***18Bolt; (5/16-18x1-In)(Hydraulic Pump)2
16***74Ring As1
16***76Seal Group-Water Pump; (Face Type)1
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212-8177 Pump Gp-Water
12***28Bearing2
12***68Hub-Fan1
12***89Collar As4
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166-4378 Pump Gp-Water
16***78Pump Group-Water; -Jacket Water1
1H***37Bolt-Mount 9w***75 Fuel Level Sensor4
1K***72Locknut Horn To Guard4
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206-6831 Radiator Gp
20***31Radiator Group1
21***58Core4
21***60Gasket8
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212-6959 Radiator Gp
10***59Seal; (Aftercooler)2
21***59Radiator Group1
28***17Core As-Aftercooler1
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212-6957 Radiator Gp
14***00Gasket8
21***57Radiator Group1
21***28Core4
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213-4226 Radiator Gp
1B***82Bolt (1.25 In. Long X .313 In. Dia.)2
21***26Radiator Group1
2K***73Locknut Inside Guard Assembly4
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9y-9171 Housing & Regulator Gp -Outlet Control
14***28Locknut8
14***07Elbow4
14***52Bolt-Hex Head; (1/2-13x2 1/4in)8
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Electrical And Starting System
237-7339 Adapter Gp-Sensor
10***31Fan-Alternator; (11-Blade)1
10***32Collar; (Alternator)1
10***62Kit-Alternator Terminal1
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145-5407 Air Dryer Gp
14***07Air Dryer Group1
4N***86Alternator Group-Charging; (24-Volt, 60-Ampere)(24-Volt, 60-Ampere)1
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7e-2858 Alternator Gp-Charging
11***49Bracket-Module1
11***87Elbow2
13***00Control Group-Engine Electronic; -Rear Ecm-Front Ecm1
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4n-3986 Alternator Gp-Charging
12***53Strip-Terminal2
14***41Fitting8
15***07Fan2
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331-5717 Alternator Gp-Charging
10***87Bolt; (M5x0.8x12-mm)4
11***11Cover1
12***74Screw-Pan Head; (8-32x9.52-mm)1
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266-7227 Alternator Gp-Charging
17***03Control Group-Engine Electronic; -Rear Ecm-Front Ecm1
26***27Alternator Group-Charging1
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152-6065 Battery
10***28Spacer-Special; (12.7x26x28.7-mm Thk)4
11***22Terminal; (Double)24
11***38Cover-End2
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211-7529 Battery Charger Gp
21***29Battery Charger Group1
3K***06Screw-Machine-Relay To Bracket2
4B***63Washer; (4.7x11x1.2-mm Thk)2
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101-1172 Control & Mtg Gp-Engine Elek -Primary
10***72Control & Mtg Group-Engine Elek; -Primary1
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177-7298 Control Gp-Engine Electronic
15***68Box1
15***69Cover1
15***70Holder2
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132-8900 Control Gp-Engine Electronic
10***51Screw; (M4x32-mm)4
10***52Seal1
10***53Lens As; (Floodlight)1
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176-7503 Control Gp-Engine Electronic
15***07Bracket As1
15***35Mounting Group-Battery1
17***03Control Group-Engine Electronic; -Rear Ecm-Front Ecm1
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9x-9591 Converter Gp-Electrical
18***26Bracket1
3B***06Washer,Lock; Flange,Elbow,Clamp Assembly,Tube To Pump,Tube Assembly To Screen,Clip Mounting,And Tube Assembly To Transmission2
4B***74Washer (Required Only When Bosch Alternator Is Fitted)2
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173-6051 Electronics Gp-Engine Ratings
17***51Electronics Group-Engine Ratings1
20***72Bracket As1
3B***06Washer,Lock; Flange,Elbow,Clamp Assembly,Tube To Pump,Tube Assembly To Screen,Clip Mounting,And Tube Assembly To Transmission4
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9x-7779 Lamp Gp-Flood -Roading Lights
03***49Nut-Self Lock; (No.10.Unc)16
24***69Bracket2
25***77Bracket2
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215-9482 Lighting Gp-Flood
15***13Bracket1
21***82Lighting Group-Flood1
7X***46Bolt 5/8" X 2" Long (Second Type)2
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159-2234 Mounting Gp-Battery
14***78Nut; (Union)1
15***34Mounting Group-Battery1
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159-2235 Mounting Gp-Battery
15***35Mounting Group-Battery1
18***35Pin-Connector; (16-Ga To 18-Ga)3
26***47Adapter1
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188-0727 Mounting Gp-Circuit Breaker
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)1
18***27Mounting Group-Circuit Breaker1
3E***71Wedge; (Receptacle Lock) (3 Pin)1
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209-1278 Mounting Gp-Control
18***40Socket-Connector; (14-Ga To 18-Ga)(14-Ga To 18-Ga)3
20***78Mounting Group-Control1
8T***31Plug-Connector; (3-Pin)1
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251-4733 Mounting Gp-Lighting
14***47Adapter1
16***32Sensor Group-Pressure; -Transmission Oil1
25***33Mounting Group-Lighting1
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192-7251 Mounting Gp-Sensor
18***36Socket-Connector; (16-Ga To 18-Ga)3
19***51Mounting Group-Sensor1
8L***86Seal-O-Ring (Id=16.36mm); (16.36-mm Id)1
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163-2204 Mounting Gp-Sensor
16***04Mounting Group-Sensor1
17***49Strap; (Marker)1
18***35Pin-Connector; (16-Ga To 18-Ga)2
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164-2441 Sensor Gp-Exhaust Temperature
11***66Seal-O-Ring1
13***07Washer; (21.1x28.1x0.9-mm Thk)1
16***41Sensor Group-Exhaust Temperature; -Rh, Lh1
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163-8492 Sensor Gp-Pressure
05***69Fuse-Connector; (Fuse)1
0S***18Bolt; (5/16-18x1-In)(Hydraulic Pump)4
16***92Sensor Group-Pressure; -Turbocharger Inlet, Rh, Lh-Atmospheric Air1
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161-9932 Sensor Gp-Pressure
16***32Sensor Group-Pressure; -Transmission Oil1
18***35Pin-Connector; (16-Ga To 18-Ga)3
8T***32Receptacle-Connector; (3-Pin)(Throttle Position Sensor)1
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259-4420 Sensor Gp-Pressure
03***55Locknut; (5/16-18-Thd)(Marked X)2
1N***16Tube-Steel1
25***20Sensor Group-Pressure1
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102-9029 Sensor Gp-Speed
10***29Sensor Group-Speed; -Timing-Engine Speed1
28***11Valve1
28***12Starter1
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265-9034 Sensor Gp-Speed
26***34Sensor Group-Speed; -Primary1
3L***87Lockwasher 7.24mm(.285in.)O.D.; (3.7x7.24x.48mm Thk)3
6T***31Nut-Hexagon-(15/32-32 Thd)2
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9x-5392 Sensor Gp-Speed
0S***85Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine4
11***97Kit-Seal; (Starting Motor)1
14***46Adapter-Starting Motor1
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128-4347 Sensor Gp-Temperature
03***67Connector-Flared -- Adapter To Hose As.2
12***47Sensor Group-Temperature1
21***06Hose As4
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149-2200 Starting Motor Gp-Hydraulic
11***43Locknut; (5/16-18-Thd)2
14***00Starter Group-Hydraulic1
15***38Cartridge Assem.1
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5n-9510 Starting Aid Gp-Ether
03***67Connector-Flared -- Adapter To Hose As.2
03***68Elbow (For Use With Shallow Pan)4
22***66Hose As4
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220-0494 Starting Aid Gp-Ether
19***04Valve Group-Solenoid1
19***14Connector2
22***94Starting Aid Group-Ether1
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318-6243 Starting Motor Gp-Hydraulic -Lh
00***40Connector; (Flared)1
0S***71Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting2
10***41Control As-Electronic1
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8n-0694 Switch As-Toggle
00***40Connector; (Flared)1
0S***71Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting2
10***32Control Group-Electronic; (Coolant Temp Sensor)1
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215-9456 Switch Gp-Liquid Level
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)3
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)2
11***44Seal1
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152-8341 Valve Gp-Solenoid -Air Shutoff
15***74Bracket1
15***41Valve Group-Solenoid; -Air Shutoff1
2K***73Locknut Inside Guard Assembly4
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144-7486 Valve Gp-Solenoid
00***10Tee; (Pipe)1
03***61Elbow; (45 Degree)2
14***86Valve Group-Solenoid; -Transmission Brake1
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185-7069 Wiring Gp-Engine
07***00Switch As-Toggle; (Starter Engine Battery Charger)4
10***84Relay As; (24-Volt)2
10***38End-Wire; (16-Ga)45
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211-0080 Wiring Gp-Machine
11***52Strip-Terminal1
12***00Wrap-Spiral; (3/4-In Od)(90-cm)0
14***95Gauge-Transmission Temperature; (Oil)1
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Enclosures, Guards And Bases
243-1163 Enclosure As
18***98Nut1
18***99Plug1
18***18Seal-O-Ring1
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204-9170 Mounting Gp-Vibration Isolator
03***21Bolt-Allen Hd; (3/8unc X 1)6
13***66Pump Group-Gear1
18***46Adapter-Transmission1
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204-9171 Mounting Gp-Vibration Isolator
13***92Cap-Union; (Hydraulic Tank)1
14***75Gasket1
15***26Tank As-Hydraulic1
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Engine Arrangement
207-1572 Engine Ar
10***27Cylinder Block Group1
10***29Piston & Rod Group12
10***30Cylinder Head Group12
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Fuel System
215-5507 Actuator As -Hydraulic
00***53Elbow-Pipe; (1/2-14 Nptf Thd)1
00***99Connector-Flared1
00***07Elbow; (90 Degree)3
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173-2937 Filter Gp-Fuel -Rh
00***53Elbow-Pipe; (1/2-14 Nptf Thd)1
00***99Connector-Flared1
00***07Elbow; (90 Degree)3
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206-4687 Lines Gp-Fuel
00***81Tee-Union; (Flared 37-Deg)1
00***73Elbow, Each Including:1
03***77Adapter1
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213-5130 Lines Gp-Fuel
10***37Grommet12
14***45Washer-Retaining6
15***48Clamp6
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173-2938 Lines Gp-Fuel Injection
10***37Grommet12
14***45Washer-Retaining6
15***48Clamp6
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156-9753 Manifold Gp-Fuel -Rh
15***53Manifold Group-Fuel; -Rh1
16***11Injector Group-Fuel1
19***84Seal-O-Ring1
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156-9754 Manifold Gp-Fuel -Lh
15***54Manifold Group-Fuel; -Lh1
19***84Seal-O-Ring1
22***96Injector Group-Fuel1
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124-9424 Pump Gp-Fuel Injection
12***24Pump Group-Fuel Injection1
23***82Plug1
24***07Seal-O-Ring1
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165-9154 Pump Gp-Fuel Priming
16***54Pump Group-Fuel Priming; -Manual1
1H***96Packing,Preformed Cartridge Part Of Kit P/N 4j***801
1N***36Coupling-Drive1
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313-7770 Pump Gp-Fuel Transfer
13***07Filter Element As-Fuel; (Water Separator)2
1J***71Seal (10.52 Degrees I.D.); Seal-O-Ring -- To Adapter2
2M***80Seal--To Connector Pump Outlet4
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169-8615 Pump Gp-Fuel Transfer
16***15Pump Group-Fuel Transfer1
25***91Kit-Seal1
25***92Kit-Repair; (Gear, Shaft)1
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8n-6151 Pump Gp-Fuel Transfer
11***97Seal-Lip; (Inner)1
12***37Shaft As-Drive1
16***17Seal-Lip Type; (Outer)1
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225-4260 Pump Gp-Fuel Transfer
13***71Deflector2
16***35Cock-Drain2
22***60Pump Group-Fuel Transfer1
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134-3172 Separator Gp-Water
13***72Separator Group-Water1
20***78Plug1
5H***36Reducer1
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233-7973 Separator Gp-Water -Primary Fuel Filter
10***69Cartridge-Desiccant1
12***98Kit-Valve1
14***06Valve Group-Purge1
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Generators
213-8117 Bracket Gp-Mounting
13***56Isolator4
21***17Bracket Group-Mounting1
2D***35Locknut (Visor To Bracket)8
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215-5642 Bracket Gp-Mounting
15***57Bracket As2
15***90Arm As2
21***42Bracket Group-Mounting1
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159-2239 Bracket Gp-Mounting
13***98Gauge-Sight; (Hydraulic Oil Level)1
15***17Tank As-Hydraulic1
15***18Cover1
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209-6579 Bracket Gp-Mounting
15***62Isolator2
20***79Bracket Group-Mounting1
2D***35Locknut (Visor To Bracket)6
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206-3916 Bracket Gp-Mounting
00***53Elbow-Pipe; (1/2-14 Nptf Thd)2
20***16Bracket Group-Mounting1
21***50Bracket As1
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209-0853 Bracket Gp-Mounting
13***98Latch As2
20***50Seal; (177.5-cm)0
20***53Bracket Group-Mounting1
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Hydraulic System
156-7661 Filter Gp-Oil
01***42Screw-Machine; (6/32x1-In)1
07***00Switch As-Toggle; (Starter Engine Battery Charger)2
10***40Socket-Relay1
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201-2069 Lines Gp-Hydraulic
03***31Seal-O-Ring2
11***17Clip1
14***39Clip1
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203-7624 Lines Gp-Hydraulic
14***83Bracket1
20***24Lines Group-Hydraulic1
3B***06Washer,Lock; Flange,Elbow,Clamp Assembly,Tube To Pump,Tube Assembly To Screen,Clip Mounting,And Tube Assembly To Transmission4
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204-9588 Lines Gp-Hydraulic Fan
00***70Nipple-Strainer To Flange1
03***47Elbow-Filtered Fuel From Based Assembly1
03***68Elbow (For Use With Shallow Pan)1
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184-9920 Plug Gp-Hydraulic Lines
03***47Elbow-Filtered Fuel From Based Assembly1
03***68Elbow (For Use With Shallow Pan)1
10***97Adapter1
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144-7575 Pump & Mtg Gp-Hydraulic
10***68Plug1
14***75Pump & Mtg Group-Hydraulic1
9T***73Filter-Oil; (Advanced Efficiency)(Hydraulic)2
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159-2383 Tank Gp-Hydraulic
03***61Elbow; (45 Degree)1
03***75Elbow2
03***57Elbow-Flared1
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159-2275 Tank Gp-Hydraulic
00***15Nipple-Pipe; (59.4mm Long)3
00***40Connector; (37 Degree)2
06***93Bushing-Reducer; (1/2-14 Nptf)1
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228-1582 Tank Gp-Hydraulic
03***29Elbow2
03***23Elbow-Flared5
05***72Tee-Swivel1
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Lubrication System
124-5512 Breather Gp
0S***71Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting1
0S***88Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter3
12***12Breather Group; -Crankcase1
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265-8050 Breather Gp
06***56Seal-O-Ring4
0L***43Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender4
0S***71Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting5
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4p-3327 Filler Gp-Engine Oil
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)1
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly1
0S***19Bolt,Machine Gear Retaining Part Of Kit P/N 1w***461
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166-8039 Filter Gp-Engine Oil
16***39Filter Group-Engine Oil1
5P***97Clamp Fumes Disposal2
5P***72Hose; (290-cm)0
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195-5717 Fumes Disposal Gp
03***64Elbow (90 Degrees)1
0L***43Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender3
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)2
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120-9818 Fumes Disposal Gp
0S***88Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter2
12***18Fumes Disposal Group1
1N***75Tube As-Gauge Guide1
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8n-7707 Gauge Gp-Oil Level (Dipstick)
03***64Elbow (90 Degrees)1
0L***43Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender3
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)2
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174-8775 Lines Gp-Turbocharger Oil
0S***85Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine6
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)9
11***49Gasket1
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4p-5638 Pump Gp-Engine Oil -2-Section Gear
05***79Washer; (13.5x44.45x10-mm Thk)1
0S***84Cap Screw (2 1/4" Long)1
0S***87Bolt-Bracket Assembly To Timing Gear4
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8n-6152 Pump Gp-Engine Oil -2-Section Gear
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)2
0S***91Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***828
0S***19Bolt,Machine Gear Retaining Part Of Kit P/N 1w***462
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144-8267 Pump Gp-Scavenge
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)2
10***32Seal-O-Ring2
14***67Pump Group-Scavenge; -Front Sump1
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8n-7805 Pump Gp-Scavenge -Front Sump
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly16
3J***07Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve1
5M***94Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler8
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1w-8508 Pump Gp-Scavenge
05***79Washer; (13.5x44.45x10-mm Thk)1
0S***84Cap Screw (2 1/4" Long)1
0S***87Bolt-Bracket Assembly To Timing Gear4
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Operator Station
173-2494 Box Gp-Instrument Panel
17***94Box Group-Instrument Panel1
20***66Shield As1
20***69Shield As1
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205-7090 Lines Gp-Instrument Panel
13***95Isolator24
13***96Washer; (10.2x39.6x2.3-mm Thk)24
15***53Bracket As1
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177-2071 Mounting Gp-Fire Extinguisher
17***71Mounting Group-Fire Extinguisher1
19***31Plate1
2K***73Locknut Inside Guard Assembly2
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211-0078 Panel Gp-Control
208-9745 Panel Gp-Control
150-5061 Panel Gp-Instrument
149-2737 Panel Gp-Instrument
Prime Package
136-3535 Accumulator Gp
13***35Accumulator Group1
1K***72Locknut Horn To Guard4
20***94Bracket As1
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141-5365 Box Gp-Storage
14***65Box Group-Storage1
20***68Frame As1
21***66Cover As1
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141-5369 Box Gp-Storage
14***69Box Group-Storage1
15***11Lockwasher4
15***70Lockwasher2
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134-3119 Box Gp-Storage
13***19Box Group-Storage1
1K***72Locknut Horn To Guard4
22***83Screw-Machine; (8-32x44.45-mm)2
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143-3744 Box Gp-Storage
14***44Box Group-Storage1
15***11Lockwasher2
21***17Bracket As1
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163-2212 Bumper Gp
11***52Plate & Film Group; -Engine Information1
16***12Bumper Group1
17***33Film-Warning; (Reset Shutoff Device)2
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213-6972 Cylinder Gp-Brake
17***88Film; (Max 6,500-Psi)1
17***89Film; (Max 7,000-Psi)1
17***90Film; (Max 10,000-Psi)1
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212-9764 Door Gp-Access
21***64Door Group-Access1
21***77Hasp6
5P***15Rivet-Pop42
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177-7297 Enclosure Gp-Control
17***97Enclosure Group-Control1
21***25Cylinder As1
21***26Gasket1
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163-2215 Fastener Gp-Lines
13***26Bracket As1
16***15Fastener Group-Lines1
16***17Cap As1
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159-8449 Fender Gp
14***66Block2
14***67Block1
14***68Block2
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155-1102 General Ar-Pumper
12***72Seal; (135-cm)0
14***06Door1
14***08Handle1
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205-4857 Guard Gp-Drive Shaft
15***30Bumper As; (Rear Bumper)1
16***14Plate2
1K***72Locknut Horn To Guard16
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203-2410 Lines Gp-Accumulator
13***98Latch As2
17***94Plate1
17***95Enclosure As1
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215-7021 Lines Gp-Heater
13***65Bracket As2
13***66Bracket As2
15***25Bracket As2
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152-6040 Lines Gp-Stabilizer Vent
15***60Fender2
15***40Lines Group-Stabilizer Vent1
15***53Bracket As2
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203-8230 Lines Gp-Starting Motor
13***05Bracket As1
15***60Fender2
15***53Bracket As5
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177-2100 Motor Gp-Fan Drive
13***03Mounting Group; (Cable Rack)1
13***13Valve Group-Lockup Clutch & Sol1
13***18Shaft Group-Drive1
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134-3103 Mounting Gp
13***03Mounting Group; (Cable Rack)1
21***94Curtain2
21***37Curtain1
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208-2261 Mounting Gp-Curtain
1F***50Nut Rops Support2
1K***72Locknut Horn To Guard8
20***97Guard As1
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212-6150 Mounting Gp-Curtain
13***71Bracket As; (Stabilizer)1
13***35Accumulator Group1
13***36Valve Group-Flow Control2
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209-0454 Mounting Gp-Engine & Tmsn
00***70Tee-Pipe1
00***83Nipple-Pipe; (Hexagon)1
03***68Elbow (For Use With Shallow Pan)1
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214-5918 Mounting Gp-Heater
00***70Tee-Pipe1
00***83Nipple-Pipe; (Hexagon)1
03***68Elbow (For Use With Shallow Pan)1
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213-1197 Mounting Gp-Panel
21***97Mounting Group-Panel1
21***22Hose As1
21***23Hose As1
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177-2077 Mounting Gp-Power Take-Off
00***70Tee-Pipe1
13***96Valve-Ball1
13***58Hose As1
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212-3771 Mounting Gp-Pump
00***40Connector; (37 Degree)1
03***55Locknut; (5/16-18-Thd)(Marked X)3
14***04Connector4
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213-5333 Mounting Gp-Pump
20***88Bracket As1
20***89Bracket As1
20***03Bracket As1
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213-5332 Mounting Gp-Pump
21***32Kit-Seal1
21***33Kit-Spring1
21***34Kit-Motor Repair1
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214-5708 Mounting Gp-Tool Box
13***04Washer4
13***05Isolator4
13***07Bracket As; (Lh)1
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205-4010 Platform Gp-Operator
14***27Nut; (3/8-16-Thd)4
20***10Platform Group-Operator1
21***76Bracket1
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210-9433 Platform Gp-Operator
14***99Bracket As4
15***26Bracket As2
1K***70Nut (National Coarse)12
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213-5133 Platform Gp-Operator
21***44Pump Group-Gear1
21***33Platform Group-Operator1
3B***08Lockwasher Handrails To Dash4
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136-3566 Pump Gp-Gear
13***66Pump Group-Gear1
20***02Bracket As1
21***45Pump Group-Gear1
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206-6349 Roof Gp
13***05Bracket As1
16***87Strap; (Discharge Piping Support)2
20***49Roof Group1
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139-5618 Shaft Gp-Drive
13***18Shaft Group-Drive1
18***47Tank; (Air-Over-Oil Pack Lube)1
1K***72Locknut Horn To Guard4
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205-2064 Shield Gp-Brake
20***64Bushing; Rubber, Shield Group-Brake1
21***08Tool Box; (Rh)1
21***09Tool Box; (Lh)1
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212-0845 Tank & Mounting Gp
21***45Tank & Mounting Group1
21***08Tool Box; (Rh)1
21***09Tool Box; (Lh)1
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180-4762 Tank & Mtg Gp-Lubrication -Packing Lubrication
15***66Anchor12
16***95Ladder As1
18***62Tank & Mtg Group-Lubrication; -Packing Lubrication1
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136-3536 Valve Gp-Flow Control
06***70Pin3
13***36Valve Group-Flow Control1
20***34Platform As1
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Service Equipment And Supplies
6l-4502 Chart-Plate & Film
234-2601 Plate & Film Gp
214-5706 Protection Gp-Vandalism
Transmission
143-3742 Lines Gp-Transmission Oil
14***42Lines Group-Transmission Oil1
16***00Plate8
16***87Strap; (Discharge Piping Support)1
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147-0687 Mounting Gp-Control Valve
14***87Mounting Group-Control Valve1
23***06Seal-Ring2
23***07Bearing-Roller2
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232-6675 Valve Gp-Lockup Clutch & Sol
09***41Washer; (Hard) (19x34x3 mm Thk)2
0T***56Bolt (2 1/2" Long)6
13***20Brake As1
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139-5613 Valve Gp-Lockup Clutch & Sol
13***13Valve Group-Lockup Clutch & Sol1
20***53Roof1
20***55Roof1
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SPT343 serial number reference

The PIN plate on the SPT343 pump-engine skid is a metal tag mounted near the engine/control area of the truck-mounted pump module, the same general practice used on other Cat truck-mounted pumper skids. Cat PINs run 17 characters: the first 3 characters are the prefix identifying this specific pumper build series (3KD or 5XZ for the SPT343), and the digits that follow are the sequential unit number used to match the machine to its parts breakpoints and service literature. The SPT343 runs a 3512B industrial engine, shared with the SPF343 and SPS343 pumper siblings in the same family - each pumper variant carries its own distinct serial prefix, so do not cross-reference parts across SPF343/SPS343/SPT343 without confirming the prefix matches your unit.

PrefixIdentifies
3KDSPT343 Truck Mounted Pumper
5XZSPT343 Truck Mounted Pumper

Frequently asked questions

What engine does the Caterpillar SPT343 use?

A Cat 3512B V-12 diesel with ADEM II electronic control, rated for well-stimulation duty at roughly 1490-1680 bkW (2000-2250 bhp) at 1900 rpm depending on series. That figure comes from parts-catalog cross-reference rather than a single published SPT343 spec sheet, so confirm the exact rating for your PIN with a dealer.

What is the operating weight of the Caterpillar SPT343?

Caterpillar does not publish a standalone operating or shipping weight for the SPT343. It is a truck-mounted power package, engine plus driven water pump group, integrated onto a customer-supplied truck deck rather than a complete self-propelled vehicle, so total in-service weight depends on the host truck chassis.

What replaced the Caterpillar SPT343?

No direct 1:1 successor is documented. Caterpillar's current pumper lineup continues under the same Pumper naming convention; verify the current equivalent model for your application with a Cat dealer.

What SPT343 owners discuss

What engine is actually under the deck on an SPT343, and is it any good?
Cat SPT343 truck-mounted pumpers are built around the 3512B V-12, the same well-stimulation-rated block used across the SPF343/SPS343/SPT343 pumper family. Ratings on this class of engine run roughly 1490-1680 bkW (2000-2250 bhp) at 1900 rpm, though exact output depends on rating and series - later 3512C-based units in the same family push higher figures, so don't assume one horsepower number applies to every unit wearing this badge. Reputation in the field is solid: turbocharged-aftercooled, well suited to altitude, heat, and dust, and the electronically governed versions are generally regarded as an easier package to live with than the older mechanical-governor engines they replaced.
We keep throwing parts at a secondary speed sensor fault and it won't clear - what's actually going on?
This is a known headache on 3512B-family engines. Techs report alarm-style codes tied to the secondary ECM/secondary speed sensor circuit that persist even after both the sensor and the ECM have been swapped. When that happens, the fault almost always traces back to the wiring harness or a corroded/loose connector rather than either electronic component. Before replacing more hardware, pull the harness and inspect the run for chafing, moisture intrusion, and connector pin condition. Because this touches the engine's protection and shutdown logic, have your dealer verify the fix before returning the unit to service.
What's the deal with the remote console on these pumpers?
The Universal Remote Control Console is the operator's main interface - it runs deck engine start/stop, gear selection, throttle, pump delivery rate, and emergency shutdown from up to about 38 m (125 ft) away on a cable. It plugs into a junction box on the unit at one end and the console at the other, with warning and indicator lamps for critical parameters. Field reports flag the cable and its socket connectors as the wear point to watch - they live at a wellsite in mud, water, and constant coiling and uncoiling, so connector corrosion and cable damage are the usual causes of a console that won't talk to the engine. Keep the cable ends capped and dry when not connected.
Does the SPT343 have its own hydraulics or pump end I need to service?
No. The SPT343 is the engine and power package mounted on the truck deck - it supplies rotating power, through a flywheel-driven coupling, to the pump end mounted on the same truck, but the pump end itself, its fluid end, and any hydraulic controls belong to the host truck's pump package, not to the Cat power unit. When something's wrong with fluid delivery, discharge pressure, or hydraulic controls, that's the pump package builder's system, not an SPT343 fault - don't waste time chasing engine-side troubleshooting for a pump-end problem.
What wears out first on these in day-to-day well-service duty?
Two things show up repeatedly: air filtration and the flywheel drive coupling to the driven pump end. Wellsite duty is dusty and often runs at sustained heavy load, so primary air cleaner elements need more frequent service than a clean-environment engine - a common rule of thumb is to discard the secondary element after every third primary cleaning. On the coupling side, misalignment or a loose mounting between engine and pump end shows up as vibration and accelerated coupling wear; it's worth a visual check at every service interval, not just when something starts knocking.
How many hours before a 3512B in this kind of service needs a rebuild?
There's no single number - it depends heavily on load factor and how hard the unit is run - but experienced techs on this engine family commonly cite rod and main bearings, turbocharger cartridges, and oil pumps going into a mid-life replacement cycle around 10,000-11,000 hours, with a full overhaul typically following somewhere in the 18,000-20,000-hour range. Well-stimulation duty, with its higher average load and more heat cycling, tends to land toward the earlier end of that range compared to lighter industrial duty. Treat those figures as a planning guideline, not a guarantee - condition-based inspection and oil analysis beat a fixed number.
What should I actually check before buying a used SPT343?
Pull full service records, not just the hour meter - a low-hour unit with gaps in oil analysis and PM history is a bigger risk than a higher-hour unit with a clean paper trail. Specifically: verify the engine serial number and confirm which production series it falls in, since this pumper family spans more than one serial-prefix range and parts or specs aren't automatically interchangeable across them; check for open or recurring ECM/speed-sensor fault history; inspect the URCC cable, connectors, and junction box for corrosion or water damage; look at the flywheel coupling to the driven pump end for wear or misalignment; and ask when rod/main bearings, turbo cartridges, and the oil pump were last done relative to the hour meter. Have your dealer verify engine hours against ECM history and run a compression and blow-by check before you commit.

Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.

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