Caterpillarengine - industrialpumper

Caterpillar SPS343

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar SPS343 is a skid-mounted industrial pumper package, not a mobile earthmoving machine — it ships with no undercarriage, chassis, or travel system, and is bolted down as a stationary or semi-permanent pump-drive unit identified by the 8ZZ serial prefix. It is built around Caterpillar's 3512B V-12 diesel, aspirated by twin turbochargers feeding a shared aftercooler core, with dual ADEM II electronic modules controlling one injector solenoid per cylinder. Published operating weight and production-year ranges are not documented in any source found for this exact package; confirm both against the serial plate and OMM for a specific unit. The SPS343 belongs to a pumper family alongside the SPF343 (frame/trailer-mounted) and SPT343 (truck-mounted), each carrying its own serial prefix but sharing the same 3512B engine and ADEM II control architecture.

Later C-suffix pumper packages in this number range, such as the SPF343C, moved to a smaller-displacement C4.4 engine, reflecting a generational shift toward lighter, lower-emission pump-drive packages rather than a direct one-for-one replacement of the 3512B-powered line. Base packages like the SPS343 represent the earlier, higher-output generation, valued in continuous-duty dewatering, oilfield, and fire-suppression pumping where the V-12's power density and long service life outweigh emissions-tier concerns. In the used and parts market, the SPS343 draws value from parts commonality with other 3512B-based Caterpillar industrial and marine packages — turbochargers, injectors, and ADEM II modules cross over across the family — but buyers should always verify the exact serial prefix and configuration before assuming parts or service data transfer between SPS343, SPF343, SPT343, and the later C-suffix packages.

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 SPS343 specifications

Engine

Product classificationSkid Mounted Pumper (industrial pump package), serial prefix 8ZZ (8ZZ00001-UP)
Engine modelCaterpillar 3512B V-12 diesel, twin turbocharged with a shared aftercooler core, under dual ADEM II electronic control (one injector solenoid per cylinder), per the pumper's electrical schematic and Cat's published 3512B architecture. No dedicated SPS343 spec sheet was located, so treat exact rating figures as unconfirmed for this specific package
Gross/net powerNot published in any located source
Displacement / cylindersNot published in any located source
Emissions tierNot published; no tier designation found for this serial range

Weights

Operating weightNot documented in public sources
Shipping weightNot documented in public sources
Ground pressureNot applicable / not published (skid-mounted package, not a tracked machine)

Dimensions

Transport length/width/heightNot documented in public sources
Skid footprintNot documented in public sources
Ground clearanceNot applicable / not published

Performance

Pump flow rateNot documented in public sources
Discharge pressure / headNot documented in public sources
Travel speed / gradeabilityNot applicable — skid-mounted package, no self-propulsion

Service capacities (summary)

Fuel tankNot documented in public sources
Cooling systemA cooling-system parts group (housing and regulator) is documented for this unit, but no capacity figure is published
Engine oilNot documented in public sources
Hydraulic systemNot documented in public sources

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

SPS343 fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter) - Cat 3512B V-12Not documented for this specific pumper package. The SPS343 runs the large-displacement 3512B V-12, so smaller industrial-engine baseline figures do not apply - confirm against the unit's O&M manual or serial-plate data before servicing.Cat DEO (Diesel Engine Oil). SAE 15W-40 for normal/warm ambient operation; SAE 10W-30 for cold-weather starting and low-temperature climates.
Cooling system - Cat 3512B V-12Not documented for this specific pumper package. A twin-turbo V-12 with a shared aftercooler core carries a substantially larger cooling system than smaller industrial engines - verify against the unit's O&M manual.Cat ELC (Extended Life Coolant) premix is the primary factory recommendation; Cat DEAC conventional coolant/antifreeze is the alternative where ELC is not used. Maintain a 50/50 water-glycol ratio, adjusted richer in glycol for sub-freezing climates.
Fuel tankNot documented in publicly available sources for either the SPS343 skid-mounted or the sibling SPF343C trailer-mounted pumper package. Tank sizing is set by the skid/trailer builder rather than a single published Cat figure - verify against the machine's O&M manual or fuel-tank nameplate.No. 2-D diesel (ULSD) per Caterpillar's standard diesel fuel specification. Switch to a winterized blend or use a cold-flow additive below 0 degC (32 degF) to prevent fuel gelling.
Hydraulic system and tankNot documented for this model. The pump end on this unit is engine-driven; no separate hydraulic-reservoir capacity was found in available sources. If the specific build carries a hydraulic auxiliary drive or fan, confirm reservoir size against its O&M manual.Where a hydraulic circuit is fitted, Cat HYDO Advanced 10 (or equivalent Cat hydraulic oil) graded by ambient-temperature viscosity per the standard Cat fluid-recommendation chart.
Grease (spec only)Not capacity-rated. Applied at pump-shaft bearings, drive coupling, and trailer or skid wheel bearings (where fitted) per the lubrication schedule.Cat Multipurpose Grease (Cat MPGM), NLGI Grade 2 for normal ambient service. Drop to NLGI Grade 1 or 0 in sustained sub-freezing temperatures.

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

Caterpillar SPS343 maintenance schedule

Service intervalTasks
Every 50 h
  • Check engine oil level before each start and top off to the full mark with the specified oil grade.
  • Check coolant level in both the jacket-water and aftercooler circuits.
  • Drain water and sediment from the primary fuel filter/water separator.
  • Walk around the skid and engine looking for fresh fuel, oil, or coolant leaks.
  • Check the air intake restriction indicator and service the air filter if it reads in the warning zone.
  • Check for unusual noise, vibration, or leakage at the pump-end drive coupling during a test run.
Every 250 h
  • Pull an engine oil sample for S-O-S analysis at the scheduled oil and filter change.
  • Replace the engine oil filter.
  • Inspect fuel filters and replace elements showing high restriction.
  • Check drive belt tension and inspect for cracking or glazing.
  • Inspect turbocharger mounting hardware and boost lines for leaks or looseness.
  • Pull a coolant Level 1 sample.
Every 500 h
  • Repeat all 250-hour checks.
  • Replace primary and secondary fuel filter elements.
  • Inspect engine mounts and the pump-end drive coupling for wear or misalignment.
  • Check battery state of charge and clean terminal connections.
  • Inspect the turbocharger wastegate actuator and linkage for free movement.
  • Inspect ADEM II wiring harness connectors, especially near the injector-solenoid valve covers, for corrosion.
Every 1,000 h
  • Repeat all 500-hour checks.
  • Inspect and clean the aftercooler core fins of debris and corrosion.
  • Pull a coolant Level 2 sample for full lab analysis.
  • Check turbocharger shaft end play.
  • Torque-check skid mounting hardware and pump-end coupling fasteners.
  • Review stored ADEM II fault codes and address root cause before clearing.
Every 2,000 h
  • Repeat all 1000-hour checks.
  • Inspect and test engine mounts and vibration isolators; replace any that are cracked or compressed.
  • Pressure-test the aftercooler core and repair or replace if it fails.
  • Perform a visual or borescope inspection of turbocharger compressor and turbine wheels for erosion or fouling.
  • Inspect the coolant pump for shaft seal seepage.
  • Check charging system output and starter motor condition under load.
Every 4,000 h
  • Inspect and adjust engine valve lash across the V-12.
  • Inspect and adjust fuel injector timing and height.
  • Rebuild or replace turbocharger cartridges showing wear from prior inspections.
  • Inspect and reseat or replace worn ADEM II wiring harness connectors.
Every 6,000 h
  • Apply the coolant system mid-life extender service if not already sampling and extending on analysis.
  • Inspect water pump, thermostats, and hoses; replace any showing age-related wear.
  • Inspect the SAE flywheel housing and pump-end coupling for wear at this mid-life point.
Every 12,000 h
  • Drain and refill the cooling system if not extended further by coolant sample analysis.
  • Assess turbocharger and top-end condition against accumulated S-O-S and coolant trend data to plan an overhaul.
  • Inspect the engine block, cylinder liners, and pump-drive coupling for major overhaul needs.

Servicing the SPS343 beyond the schedule

Predictive Maintenance & Fluid Analysis

Run S-O-S oil sampling at every scheduled oil change on the 3512B and track wear-metal trends rather than waiting on an oil-pressure alarm. Pull coolant Level 1 and Level 2 samples on the extended-life coolant plan to catch aftercooler or jacket-water contamination early. Watch the dual ADEM II fault logs for injector-solenoid response drift and boost-pressure imbalance between the twin turbocharger banks — an early flag for fuel delivery or turbo bearing wear on a continuous-duty pump engine.

Corrective & Common Repairs

Typical corrective work on the SPS343 centers on the fuel system and turbo air path. Fuel filter and water-separator elements load up fast when a pump string draws from stored or marginal fuel, so watch actual condition, not just hours. ADEM II injector-solenoid harness connectors corrode at the valve covers on skids left outdoors, causing misfire or hard-start codes. Turbocharger wastegate linkage sticks from carbon buildup on idle-heavy duty cycles, and aftercooler fouling shows up as rising intake-manifold temperature and falling boost before it trips a fault code.

Overhaul & Rebuild Points

Treat the 3512B's valve lash and fuel injector timing recalibration as the major top-end milestone, and budget turbocharger cartridge rebuilds around the same window. Liner, piston, and cylinder-head work follows standard V-12 overhaul practice, worked bank by bank to keep the package serviceable. Inspect the SAE flywheel housing and pump-end drive coupling at every teardown, since that interface carries full engine torque into the driven pump and wears independently of the engine internals. Renew ADEM II wiring and connectors during any major rebuild.

Seasonal & Environment Servicing

Skid-mounted pumpers often sit outdoors or in unheated pump houses, so verify jacket-water and aftercooler freeze protection before cold weather rather than assuming the last fill still holds. Drain fuel filter/water separators ahead of cold snaps to stop condensation from gelling fuel lines. Confirm block heater and battery function for clean cold starts. On dusty dewatering or oilfield sites, shorten air filter service well below the standard interval. Protect the skid frame, linkages, and exposed ADEM II connectors from corrosion in marine or high-humidity installations.

SPS343 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 →
145-5452Filter Element-OilCheck fitment →

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

SPS343 fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
CID 0100-01Engine oil pressure below normal operating rangeLow oil level, worn oil pump, plugged suction screen, or failing oil pressure sensorStop the pump unit, check oil level and condition, then verify pressure with a mechanical gauge before restarting
CID 0110-03Coolant temperature sensor signal voltage above normal (open circuit or disconnected sensor)Damaged sensor wiring, corroded connector, or failed coolant temperature sensorInspect sensor connector and harness for damage or corrosion, test sensor resistance, replace sensor if out of spec
CID 0110-00Engine coolant temperature above normal (overheat condition)Low coolant level, blocked radiator or heat exchanger, failed water pump, or slipping/damaged fan driveShut down the pumper, let engine cool, check coolant level and radiator/heat exchanger for blockage before restart
CID 0111-01Engine coolant level below normalExternal coolant leak at hose, radiator, or heat exchanger, or a failed coolant level sensorCheck coolant level visually, inspect cooling system for leaks, top off with correct coolant and retest sensor
CID 0102-10Boost/intake manifold pressure signal changing at an abnormal rateLoose or cracked charge air/boost line, restricted air intake, or an intermittent boost pressure sensor connectionInspect air intake and charge piping for leaks or restrictions, check sensor wiring, clear code and retest under load
CID 0094-01Fuel delivery pressure below normalClogged fuel filter, restricted fuel supply line, or a failing fuel transfer pumpReplace fuel filters, check fuel supply line for kinks or restriction, verify transfer pump output pressure
CID 0168-02Electrical system (battery) voltage erratic, intermittent, or incorrectLoose or corroded battery terminal, failing alternator, or a chafed charging circuit wireCheck battery terminals and ground connections, test charging voltage at the alternator, repair or replace as needed
CID 0190-08Engine speed/timing sensor signal abnormalDamaged speed/timing sensor, incorrect sensor air gap, or a damaged tone wheelInspect sensor mounting and gap, check wiring for damage, replace sensor if signal remains abnormal

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

SPS343 attachments & work tools

Machine type and scope

SPS343 is a skid-mounted industrial Pumper package (stationary/portable pump-drive engine unit), not an earthmoving or material-handling machine. No buckets, forks, blades, or work-tool couplers apply to this model.

Mounting/base configuration

Engine and pump end are bolted to a structural steel skid base for stationary or towable-on-site installation. Sibling packages in the same family use different base types: truck-mounted and trailer-mounted versions exist under related model designations, each with its own base hardware, not interchangeable with the skid base.

Pump-end drive coupling

Engine drives the pump end through an SAE flywheel housing (commonly SAE No. 1, adaptable to SAE No. 0 with a housing/flywheel change) fitted with a flexible coupling. Drive is direct-coupled, not belt-driven; coupling size and housing choice vary by the pump end fitted.

Coupling/shaft guarding

A sheet-metal or fabricated guard covers the exposed engine-to-pump drive coupling on the skid, standard shop-safety practice for rotating shaft couplings in walkway or personnel-accessible areas.

Control panel and instrumentation

Skid-mounted control panel carries pressure and temperature gauges and switches (oil pressure, jacket-water temperature, pump-oil temperature) feeding panel lamps and an audible alarm. The engine runs dual ADEM II electronic control modules, so a diagnostic fault-code interface backs up the mechanical gauge readouts.

Remote control console (optional)

A factory remote-control console, documented on the truck-mounted sibling package, allows start/stop and speed control away from the unit. Availability on the skid-mounted SPS343 specifically is not confirmed in surviving documentation; treat as an optional feature to verify per unit.

Cooling arrangement

Jacket water is cooled through a radiator or heat exchanger circuit. Some packages in this Pumper family use a cube-style radiator with auxiliary oil and fuel heat exchangers mounted inside it to cool pump-lube oil and fuel; exact arrangement varies by package and series, verify per serial/arrangement number.

Starting and electrical system

24V DC electric starting with a skid-mounted battery rack is standard across this Pumper family. A jacket-water heater is a common cold-weather option to keep the unit ready for standby/emergency start duty.

Protection/shutdown system

Low oil pressure, high jacket-water temperature, and high pump-oil temperature are monitored by pressure and temperature switches wired to panel lamps and a horn, backed by the engine's electronic control module logging the same conditions as diagnostic fault codes. Shutdown or alarm action depends on the specific panel configuration fitted.

All SPS343 assemblies by section

Every catalogued assembly group for the Caterpillar SPS343. 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
10***59Seal; (Aftercooler)2
10***96Aftercooler Group-Treated Water1
28***17Core As-Aftercooler1
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8n-3378 Air Cleaner Gp
1B***82Bolt (1.25 In. Long X .313 In. Dia.)2
2K***73Locknut Inside Guard Assembly4
5S***03Nut-Full; (5/16 X 18 Thd)2
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174-1419 Air Cleaner Gp
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold2
16***89Support As1
17***19Air Cleaner Group1
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174-9487 Lines Gp-Air
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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152-6092 Lines Gp-Air
03***29Elbow1
03***23Elbow-Flared1
03***92Nut; (2-11 1/2nps)1
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188-8616 Manifold Gp-Exhaust
10***45Manifold-Exhaust; (Front, Rh)1
10***46Manifold-Exhaust; (Intermediate, Rh)4
10***47Manifold-Exhaust; (Front, Lh)1
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152-6085 Muffler Gp
11***93Lockwasher16
14***56Bolt; (1/2-13x2-In)4
14***42Washer; (10.2x18.5x2.5-mm Thk)32
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200-2000 Shield Gp-Exhaust -Manifold
0S***09Bolt (3/4") Filler Tube Assembly To Transfer Drive Case12
14***68Shield As-Exhaust; (Outer Rh, Front)1
14***69Shield As-Exhaust; (Outer Lh, Front)1
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200-1999 Shield Gp-Exhaust -Turbocharger
13***00Shield As-Heat; (Exhaust Manifold)(Rh Rear)1
13***02Shield As-Heat; (Turbocharger)(Rh Top,Lh Bottom)2
13***03Shield As-Heat; (Turbocharger)(Lh Top,Rh Bottom)2
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215-2706 Shutoff As-Air -Inlet
15***98Seal-O-Ring1
21***50Seal-O-Ring1
21***27Shaft1
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272-7099 Shutoff Gp-Air -Inlet, Lh
15***15Ring-Retaining1
21***28Sleeve As1
21***29Spring1
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272-7098 Shutoff Gp-Air -Inlet, Rh
15***15Ring-Retaining1
21***28Sleeve As1
21***29Spring1
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230-6310 Shutoff Gp-Air -Inlet, Lh
15***15Ring-Retaining1
18***24Seal1
21***28Sleeve As1
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272-7097 Shutoff Gp-Air -Lh
21***07Actuator As; -Hydraulic1
21***18Bolt; (10-24x3-In)2
21***20Seal-O-Ring1
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230-6307 Shutoff Gp-Air -Rh
21***07Actuator As; -Hydraulic1
21***18Bolt; (10-24x3-In)2
21***20Seal-O-Ring1
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274-5756 Shutoff Gp-Air
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
15***15Ring-Retaining1
18***24Seal1
21***28Sleeve As1
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122-5946 Shutoff Gp-Air -Inlet
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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230-6308 Shutoff Gp-Air -Lh
21***07Actuator As; -Hydraulic1
21***18Bolt; (10-24x3-In)2
21***20Seal-O-Ring1
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214-5550 Shutoff Gp-Air
00***21Tee-Union1
03***78Connector-Filtered Fuel To Adapter1
03***62Elbow, Swivel Nut 45 Degrees (-6)2
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140-2015 Shutoff Gp-Air -Hydraulic
12***46Shutoff Group-Air; -Inlet1
14***15Shutoff Group-Air; -Hydraulic1
5N***30Gasket1
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272-7096 Shutoff Gp-Air -Rh
21***07Actuator As; -Hydraulic1
21***18Bolt; (10-24x3-In)2
21***20Seal-O-Ring1
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185-7057 Shutoff Gp-Air
00***21Tee-Union1
03***78Connector-Filtered Fuel To Adapter1
03***62Elbow, Swivel Nut 45 Degrees (-6)2
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176-3231 Turbocharger Gp
12***36Gasket; (Turbocharger)2
17***31Turbocharger Group1
18***71Flange-Half4
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303-8128 Turbocharger Gp
12***75Bolt; (3/8x16x1.75-In)(Compressor)8
12***76Plate-Clamp; (Compressor)4
15***41Seal-O-Ring; (Compressor)1
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152-2700 Valve & Mtg Gp-Air Shutoff
15***00Valve & Mtg Group-Air Shutoff1
15***41Valve Group-Solenoid; -Air Shutoff1
7T***45Manifold-Solenoid Valve1
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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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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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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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107-0278 Cover Gp-Front Housing
10***78Cover Group-Front Housing1
1A***29Bolt (1-1/8") Tube Assembly To Transfer Drive Case27
23***46Seal-O-Ring2
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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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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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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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100-8026 Cylinder Block As
10***26Cylinder Block As1
21***26Liner-Cylinder Block12
22***96Cap-Crankshaft Bearing7
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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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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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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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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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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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101-0830 Cylinder Head Gp
10***30Cylinder Head Group1
11***91Gasket-Cylinder Head1
13***20Fastener Group-Cylinder Head6
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201-4257 Cylinder Head Gp
13***06Guide-Valve; (Standard)(Intake)2
14***82Guide-Valve; (0.508mm Os Od)(Exhaust)0
15***12Cylinder Head As1
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145-3216 Cylinder Head Gp
10***77Spring-Valve; (Inner)4
10***80Spring-Valve; (Outer)4
13***06Guide-Valve; (Standard)(Intake)4
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171-4571 Damper Gp
15***63Washer; (10.35x16x2-mm Thk)2
17***71Damper Group1
1A***29Bolt (1-1/8") Tube Assembly To Transfer Drive Case48
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4w-7754 Damper Gp
17***71Damper Group1
1N***82Adapter1
3B***15Bolt Guard Assembly To Accessory Drive Housing18
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173-7675 Drive Gp-Accessory
0T***55Bolt; (3/8-16x4.25-In)(Location S)1
14***97Bearing-Sleeve1
14***63Gear As-Idler; (53-Teeth)1
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8n-9167 Drive Gp-Accessory -Lower, Lh
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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7w-0968 Flywheel Gp
0S***85Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine16
5P***47Washer (Bracket To Valve Support)16
5P***39Washer-Hard; (28x42x4-mm Thk)12
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8n-7174 Gear Gp-Front -Standard Rotation
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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124-8395 Gear Gp-Rear -Camshaft Drive
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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191-6467 Guard Gp-Damper
11***93Lockwasher6
14***42Washer; (10.2x18.5x2.5-mm Thk)14
15***10Washer; (13.5x25.4x3-mm Thk)8
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107-7177 Housing Gp-Flywheel
10***91Housing As-Flywheel1
10***77Housing Group-Flywheel1
1D***74Bolt (L.H. Side Flywheel Housing)6
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4p-5426 Housing Gp-Front -Accessory Drive
0S***87Bolt-Bracket Assembly To Timing Gear4
10***34Housing-Accessory Drive1
1B***18Washer; (25/64 X 5/8 X .064in Thk)6
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7e-6872 Lifting Gp-Engine
0S***09Bolt (3/4") Filler Tube Assembly To Transfer Drive Case4
15***26Bracket As2
19***86Retainer-Eye; (Rear)1
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152-6013 Pan Gp-Oil
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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223-6363 Piston & Rod Gp
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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101-0829 Piston & Rod Gp
10***29Piston & Rod Group1
10***30Bearing-Connecting Rod; (Standard)1
10***31Bearing-Connecting Rod; (0.63-mm Us Id)0
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281-6139 Piston & Rod Gp
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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7w-3813 Seal Gp-Crankshaft
11***32Seal Group-Crankshaft; (Cw Rotation)1
11***33Seal Group-Crankshaft; (Ccw Rotation)1
7W***13Seal Group-Crankshaft1
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7n-1863 Trunnion Gp-Engine
1D***66Bolt Bracket Assembly To Yoke20
5P***45Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate)20
5P***46Washer-Hard; (15.5x29x3-mm Thk)16
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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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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
8n-8993 Connection Gp-Water -Inlet, Lh
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)16
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly16
1S***72Gasket2
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152-6012 Cooler Gp-Engine Oil
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)2
10***32Seal-O-Ring2
14***49Tube As1
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4w-4980 Core Gp-Oil Cooler -Engine
4W***80Core Group-Oil Cooler; -Engine1
8T***64Plug-Pipe; (1/8-27-Thd)(Cylinder Head)2
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141-4109 Core Gp-Oil Cooler
14***09Core Group-Oil Cooler; -Brake, Frame Mount-Transmission, Engine Mount-Tc, Bk, Hoist, Engine Mount1
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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184-9960 Heat Exchanger
14***12Seal-Ring4
14***13Seal-Plate20
15***73Seal-Plate29
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184-9961 Heat Exchanger Gp
18***61Heat Exchanger Group1
19***89Seal4
19***90Plate-End2
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7e-4711 Housing & Regulator Gp
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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216-6217 Housing & Regulator Gp -Aftercooler
1A***29Bolt (1-1/8") Tube Assembly To Transfer Drive Case4
21***28Housing1
21***29Adapter1
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195-5710 Lines Gp-Coolant
14***71Gasket2
14***27Elbow2
15***10Washer; (13.5x25.4x3-mm Thk)16
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195-5712 Lines Gp-Coolant
12***81Reducer1
14***42Washer; (10.2x18.5x2.5-mm Thk)32
15***92Locknut; (3/8-16 Thd)16
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185-7064 Lines Gp-Water -Aftercooler
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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140-2666 Lines Gp-Water -Upper
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly27
0S***18Bolt; (5/16-18x1-In)(Hydraulic Pump)46
11***76Manifold; (Rear, Lh)1
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152-6038 Lines Gp-Water -Engine Oil Cooler
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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185-7053 Lines Gp-Water -Turbocharger
03***33Seal-O-Ring; (12.42mm Id)8
0S***94Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly11
10***44Block4
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185-7047 Lines Gp-Water -Lower
0S***19Bolt,Machine Gear Retaining Part Of Kit P/N 1w***462
14***85Elbow1
14***38Tube As1
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191-6471 Mounting Gp-Heat Exchanger
18***60Heat Exchanger1
19***50Bracket As1
19***51Bracket As1
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9y-8175 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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212-8166 Pump Gp-Auxiliary Water
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)4
12***00Bearing-Sleeve1
21***66Pump Group-Auxiliary Water1
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7e-9782 Pump Gp-Auxiliary Water
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)4
0S***91Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***821
12***00Bearing-Sleeve1
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2w-9729 Pump Gp-Water
14***62Seal-O-Ring1
21***77Pump Group-Water1
2W***29Pump Group-Water; Water Pump Group1
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212-8177 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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166-4378 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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195-5707 Regulator Gp-Temperature
13***98Valve; (Thermal)(Power End Lube Circuit)1
14***28Locknut2
14***56Bolt; (1/2-13x2-In)2
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8n-7643 Housing & Regulator Gp -Inlet Control
0S***88Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter5
10***12Plate2
1A***83Bolt (4.75" Long-Location "B")5
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152-6019 Tank Gp-Expansion
0L***51Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold6
0S***85Bolt; 12.7 mm (1/2") Diameter X 38.1 mm (1 1/2") Length Generator To Engine4
0S***90Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As)8
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Electrical And Starting System
145-5407 Air Dryer Gp
10***69Cartridge-Desiccant1
12***98Kit-Valve1
14***06Valve Group-Purge1
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101-1172 Control & Mtg Gp-Engine Elek -Primary
10***72Control & Mtg Group-Engine Elek; -Primary1
11***49Bracket-Module1
11***87Elbow2
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177-2385 Control Gp-Eng Ratings Elek
176-7503 Control Gp-Engine Electronic
10***87Bolt; (M5x0.8x12-mm)4
11***11Cover1
12***74Screw-Pan Head; (8-32x9.52-mm)1
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177-7298 Control Gp-Engine Electronic
10***28Spacer-Special; (12.7x26x28.7-mm Thk)4
11***22Terminal; (Double)24
11***38Cover-End2
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132-8900 Control Gp-Engine Electronic
13***00Control Group-Engine Electronic; -Rear Ecm-Front Ecm1
17***03Control Group-Engine Electronic; -Rear Ecm-Front Ecm1
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9x-9591 Converter Gp-Electrical
3K***06Screw-Machine-Relay To Bracket2
4B***63Washer; (4.7x11x1.2-mm Thk)2
9X***91Converter Group-Electrical; -Pulse Width Modulated1
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173-6051 Electronics Gp-Engine Ratings
17***51Electronics Group-Engine Ratings1
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158-4440 Enclosure Gp-Wiring
13***98Latch As2
15***40Enclosure Group-Wiring1
20***50Seal; (177.5-cm)0
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119-6283 Lubricator Gp-Air Motor
11***83Lubricator Group-Air Motor; Lubrication Gp-Air Motor1
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119-6284 Lubricator Gp-Air Motor
11***82Lubricator Group-Air Motor; Lubrication Gp-Air Motor1
11***83Lubricator Group-Air Motor; Lubrication Gp-Air Motor1
11***84Lubricator Group-Air Motor1
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119-6282 Lubricator Gp-Air Motor
11***82Lubricator Group-Air Motor; Lubrication Gp-Air Motor1
6N***84Gasket1
6N***85Plug-Filler2
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155-1172 Mounting Gp-Junction Box
13***56Isolator4
14***52Bolt-Hex Head; (1/2-13x2 1/4in)4
14***47Washer; (7.2x14.5x2-mm Thk)24
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197-2564 Mounting Gp-Sensor
15***13Bracket1
15***67Washer; (16.66x30.18x3.58-mm Thk)8
16***38Bolt; (5/8-11x3-In)2
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192-7251 Mounting Gp-Sensor
14***78Nut; (Union)1
19***51Mounting Group-Sensor1
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163-2204 Mounting Gp-Sensor
15***13Bracket1
16***04Mounting Group-Sensor1
7X***46Bolt 5/8" X 2" Long (Second Type)2
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164-2441 Sensor Gp-Exhaust Temperature
16***41Sensor Group-Exhaust Temperature; -Rh, Lh1
18***35Pin-Connector; (16-Ga To 18-Ga)3
26***47Adapter1
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163-8492 Sensor Gp-Pressure
16***92Sensor Group-Pressure; -Turbocharger Inlet, Rh, Lh-Atmospheric Air1
18***40Socket-Connector; (14-Ga To 18-Ga)(14-Ga To 18-Ga)3
8T***31Plug-Connector; (3-Pin)1
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102-9029 Sensor Gp-Speed
10***29Sensor Group-Speed; -Timing-Engine Speed1
18***36Socket-Connector; (16-Ga To 18-Ga)3
8L***86Seal-O-Ring (Id=16.36mm); (16.36-mm Id)1
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265-9034 Sensor Gp-Speed
11***66Seal-O-Ring1
13***07Washer; (21.1x28.1x0.9-mm Thk)1
18***40Socket-Connector; (14-Ga To 18-Ga)(14-Ga To 18-Ga)3
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9x-5392 Sensor Gp-Speed
17***49Strap; (Marker)1
18***35Pin-Connector; (16-Ga To 18-Ga)2
8T***32Receptacle-Connector; (3-Pin)(Throttle Position Sensor)1
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128-4347 Sensor Gp-Temperature
12***47Sensor Group-Temperature1
18***35Pin-Connector; (16-Ga To 18-Ga)3
8T***32Receptacle-Connector; (3-Pin)(Throttle Position Sensor)1
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7c-3372 Starting Motor Gp-Air
03***17Washer-Spring2
09***33Bolt-Socket Head; (M5x0.8x20-mm)1
11***99Housing-Motor1
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7c-5104 Starting Motor Gp-Air
0S***66Bolt-Pulley To Crankshaft Adapter3
10***69Silencer-Air Starting1
11***84Lubricator Group-Air Motor1
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4w-5107 Starting Motor Gp-Air
03***17Washer-Spring2
09***33Bolt-Socket Head; (M5x0.8x20-mm)1
1L***97Ring-Snap; (External)1
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4w-5732 Starting Motor Gp-Air -Lh
03***17Washer-Spring2
11***99Housing-Motor1
1L***97Ring-Snap; (External)1
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5n-8980 Valve As-Solenoid -Air Start
3F***65Locknut; (1/2-14-Nptf-Thd)1
5N***43Adapter (Small); (.50-14 Thd)1
5N***80Valve As; -Air Start1
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152-8341 Valve Gp-Solenoid -Air Shutoff
11***43Locknut; (5/16-18-Thd)2
15***38Cartridge Assem.1
15***41Valve Group-Solenoid; -Air Shutoff1
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144-7486 Valve Gp-Solenoid
14***86Valve Group-Solenoid; -Transmission Brake1
19***04Valve Group-Solenoid1
19***14Connector2
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185-7069 Wiring Gp-Engine
00***40Connector; (Flared)1
0S***71Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting2
10***41Control As-Electronic1
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179-8915 Wiring Gp-Machine
09***04Tube-Heat Shrink; (19.1-mm Dia)(6-cm)0
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)2
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)2
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Enclosures, Guards And Bases
161-0412 Base Gp-Engine
03***31Seal-O-Ring2
14***38Clip1
14***39Clip1
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Engine Arrangement
180-7400 Engine Ar
10***27Cylinder Block Group1
10***29Piston & Rod Group12
10***30Cylinder Head Group12
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155-1101 General Ar
14***69Box Group-Storage1
14***75Pump & Mtg Group-Hydraulic1
14***37Panel Group-Instrument1
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Fuel System
215-5507 Actuator As -Hydraulic
21***20Spindle1
21***21Spacer1
21***07Actuator As; -Hydraulic1
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173-2937 Filter Gp-Fuel -Rh
0S***19Bolt,Machine Gear Retaining Part Of Kit P/N 1w***462
11***78Adapter1
16***54Pump Group-Fuel Priming; -Manual1
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156-7520 Filter Gp-Water Sep & Fuel
12***03Filter Group-Fuel1
13***07Filter Element As-Fuel; (Water Separator)2
14***42Washer; (10.2x18.5x2.5-mm Thk)20
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195-5709 Lines Gp-Fuel
06***74Elbow1
14***38Clip-Loop1
16***54Connector4
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185-7041 Lines Gp-Fuel Injection
00***81Tee-Union; (Flared 37-Deg)1
00***73Elbow, Each Including:1
03***77Adapter1
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156-9758 Manifold Gp-Fuel
10***37Grommet12
14***45Washer-Retaining6
15***48Clamp6
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156-9757 Manifold Gp-Fuel
10***37Grommet12
14***45Washer-Retaining6
15***48Clamp6
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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
18***23Pump As-Fuel Priming1
7X***01Bolt-Plt; (1/4unc X 1 1/4)1
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8n-6151 Pump Gp-Fuel Transfer
1H***96Packing,Preformed Cartridge Part Of Kit P/N 4j***801
1N***36Coupling-Drive1
22***60Pump Group-Fuel Transfer1
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313-7770 Pump Gp-Fuel Transfer
25***91Kit-Seal1
25***92Kit-Repair; (Gear, Shaft)1
31***70Pump Group-Fuel Transfer; -1-Section Gear1
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169-8615 Pump Gp-Fuel Transfer
11***97Seal-Lip; (Inner)1
12***37Shaft As-Drive1
16***15Pump Group-Fuel Transfer1
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225-4260 Pump Gp-Fuel Transfer
11***97Seal-Lip; (Inner)1
16***17Seal-Lip Type; (Outer)1
1W***03Gear As-Idler1
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Hydraulic System
152-6091 Lines Gp-Hydraulic
15***91Lines Group-Hydraulic1
16***34Bushing-Reducing1
16***37Tee-Pipe1
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152-6090 Lines Gp-Hydraulic
12***72Seal; (135-cm)0
14***67Cover As1
14***70Support As3
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184-9920 Plug Gp-Hydraulic Lines
14***47Washer; (7.2x14.5x2-mm Thk)4
18***20Plug Group-Hydraulic Lines1
5P***60Bolt; (1/4-20x0.75-In)2
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144-7575 Pump & Mtg Gp-Hydraulic
14***75Pump & Mtg Group-Hydraulic1
14***42Washer; (10.2x18.5x2.5-mm Thk)8
14***47Washer; (7.2x14.5x2-mm Thk)18
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190-6632 Tank & Mtg Gp-Hydraulic
07***00Switch As-Toggle; (Starter Engine Battery Charger)1
10***84Relay As; (24-Volt)2
10***38End-Wire; (16-Ga)4
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161-0378 Tank & Mtg Gp-Hydraulic
14***42Washer; (10.2x18.5x2.5-mm Thk)10
15***92Locknut; (3/8-16 Thd)7
16***78Tank & Mtg Group-Hydraulic1
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134-3191 Tank Gp-Hydraulic
11***52Strip-Terminal1
12***00Wrap-Spiral; (3/4-In Od)(90-cm)0
13***91Tank Group-Hydraulic1
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155-1158 Tank Gp-Hydraulic
01***42Screw-Machine; (6/32x1-In)1
07***00Switch As-Toggle; (Starter Engine Battery Charger)2
10***40Socket-Relay1
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Lubrication System
124-5512 Breather Gp
03***31Seal-O-Ring3
10***99Cover As3
12***12Breather Group; -Crankcase1
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4p-3327 Filler Gp-Engine Oil
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
2W***52Gasket1
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185-7061 Filter Gp-Engine Oil
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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120-9818 Fumes Disposal Gp
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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195-5717 Fumes Disposal Gp
19***17Fumes Disposal Group1
5P***97Clamp Fumes Disposal2
5P***72Hose; (290-cm)0
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152-6014 Gauge Gp-Oil Level (Dipstick)
0S***88Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter2
14***59Tube As1
15***14Gauge Group-Oil Level (Dipstick)1
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195-5715 Lines Gp-Engine Oil Drain
11***36Valve As-Shutoff; (Jacket Water Heater)1
16***49Plug-Pipe1
16***50Plug-Pipe1
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185-7048 Lines Gp-Turbocharger Oil
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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8n-6152 Pump Gp-Engine Oil -2-Section Gear
29***87Seal-O-Ring1
4P***38Pump Group-Engine Oil; -2-Section Gear1
4S***82Bolt 7.25 In. (18.42 cm) Long3
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4p-5638 Pump Gp-Engine Oil -2-Section Gear
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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8n-7805 Pump Gp-Scavenge -Front Sump
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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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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144-8267 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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Marine Transmission
155-1180 Valve Gp
14***47Washer; (7.2x14.5x2-mm Thk)12
15***80Valve Group1
15***10Bolt; (1/4-20 X 1.5in)6
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Operator Station
173-2494 Box Gp-Instrument Panel
11***93Lockwasher2
14***42Washer; (10.2x18.5x2.5-mm Thk)2
14***47Washer; (7.2x14.5x2-mm Thk)6
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195-5714 Lines Gp-Instrument Panel
19***14Lines Group-Instrument Panel1
2J***07Nut-Full; (1-8 X38.1 Thd)4
3B***16Washer,Lock Radiator Guard4
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195-5711 Mounting Gp-Instrument
14***99Bracket As4
15***26Bracket As2
19***11Mounting Group-Instrument1
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191-6472 Mounting Gp-Instrument Panel
11***93Lockwasher4
14***83Bracket1
14***42Washer; (10.2x18.5x2.5-mm Thk)4
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191-6469 Mounting Gp-Instrument Panel
19***69Mounting Group-Instrument Panel1
3B***08Lockwasher Handrails To Dash16
8T***19Capscrew; (1/2-13x1 3/4" Gd8)16
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179-8916 Panel Gp-Control
17***16Panel Group-Control1
23***06Seal-Ring2
23***07Bearing-Roller2
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150-5061 Panel Gp-Instrument
14***28Locknut4
15***61Panel Group-Instrument1
15***10Washer; (13.5x25.4x3-mm Thk)8
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149-2737 Panel Gp-Instrument
0T***56Bolt (2 1/2" Long)6
13***20Brake As1
13***21Damper1
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Prime Package
136-3535 Accumulator Gp
03***31Seal-O-Ring2
11***17Clip1
13***35Accumulator Group1
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141-5365 Box Gp-Storage
03***68Elbow (For Use With Shallow Pan)1
05***26Tee1
11***02Nipple-Pipe1
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141-5369 Box Gp-Storage
03***67Elbow2
10***71Elbow1
11***46Plug-Pipe1
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143-3744 Box Gp-Storage
11***46Plug-Pipe2
12***81Reducer1
14***44Box Group-Storage1
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191-6470 Cooler & Mtg Gp-Hydraulic Oil
18***98Nut1
18***99Plug1
18***18Seal-O-Ring1
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190-6646 Cylinder Gp-Air/Hydraulic
03***21Bolt-Allen Hd; (3/8unc X 1)6
13***66Pump Group-Gear1
18***46Adapter-Transmission1
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191-6453 Door Gp-Access
13***95Isolator8
13***96Washer; (10.2x39.6x2.3-mm Thk)8
14***42Washer; (10.2x18.5x2.5-mm Thk)8
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177-7297 Enclosure Gp-Control
13***91Tank Group-Hydraulic1
13***95Isolator6
13***96Washer; (10.2x39.6x2.3-mm Thk)6
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177-2142 Guard Gp-Drive Shaft
09***19Plug-Pipe1
11***46Plug-Pipe4
13***98Gauge-Sight; (Hydraulic Oil Level)1
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161-0299 Lines Gp-Accumulator
13***98Gauge-Sight; (Hydraulic Oil Level)1
13***92Cap-Union; (Hydraulic Tank)1
14***75Gasket1
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195-5706 Lines Gp-Vent
15***97Base As; (Rear Section)1
15***98Base As1
15***99Base As; (Skid)1
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195-5716 Mounting Gp-Bracket
11***52Plate & Film Group; -Engine Information1
17***33Film-Warning; (Reset Shutoff Device)2
19***16Mounting Group-Bracket1
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161-0290 Mounting Gp-Engine & Tmsn
15***16Film-Warning; (Do Not Climb)1
16***90Mounting Group-Engine & Tmsn1
17***88Film; (Max 6,500-Psi)1
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191-6475 Mounting Gp-Filter
14***66Block2
14***67Block1
14***68Block2
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191-6474 Mounting Gp-Filter
19***74Mounting Group-Filter1
21***25Cylinder As1
21***26Gasket1
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195-5713 Mounting Gp-Panel
14***65Box Group-Storage1
14***44Box Group-Storage1
15***00Strap1
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212-3771 Mounting Gp-Pump
14***42Washer; (10.2x18.5x2.5-mm Thk)8
15***67Washer; (16.66x30.18x3.58-mm Thk)2
15***70Lockwasher2
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156-7556 Mounting Gp-Pump
14***28Locknut12
14***56Bolt; (1/2-13x2-In)8
14***52Bolt-Hex Head; (1/2-13x2 1/4in)4
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188-0695 Mounting Gp-Transmission
14***28Locknut16
14***47Washer; (7.2x14.5x2-mm Thk)40
14***48Bolt; (1/4-20x1-In)20
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156-7561 Mounting Gp-Valve
13***98Latch As2
15***61Mounting Group-Valve1
17***94Plate1
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136-3566 Pump Gp-Gear
13***66Pump Group-Gear1
14***28Locknut36
14***56Bolt; (1/2-13x2-In)2
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161-0288 Shaft Gp-Drive
13***71Bracket As; (Stabilizer)1
13***35Accumulator Group1
13***41Pipe As1
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190-6694 Tank & Mounting Gp
14***42Washer; (10.2x18.5x2.5-mm Thk)6
15***92Locknut; (3/8-16 Thd)3
16***36Elbow1
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190-6695 Tank & Mounting Gp
13***65Bracket As2
13***66Bracket As2
14***56Bolt; (1/2-13x2-In)12
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191-6473 Tank & Mtg Gp-Water
13***05Isolator4
16***89Bracket As1
16***91Bracket As1
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Service Equipment And Supplies
6l-4502 Chart-Plate & Film
14***28Locknut8
15***10Washer; (13.5x25.4x3-mm Thk)16
15***40Bolt; (1/2-13 X 1.75in)8
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234-6849 Film Gp
14***28Locknut4
15***10Washer; (13.5x25.4x3-mm Thk)8
19***06Tank-Water1
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Transmission
158-0672 Lines Gp-Transmission Oil
14***28Locknut2
14***07Air Dryer Group1
14***42Washer; (10.2x18.5x2.5-mm Thk)8
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SPS343 serial number reference

The PIN plate on a Cat SPS343 skid-mounted pumper is riveted to the frame or skid base near the engine control panel, the same placement Cat uses on its industrial power units. The plate reads as a 3-letter prefix followed by a 5- or 6-digit sequence number: the prefix identifies the specific model/arrangement (8ZZ for SPS343) and the sequence number is the individual unit count, not a build date.

PrefixIdentifies
8ZZSPS343 Skid Mounted Pumper

Frequently asked questions

What engine does the Caterpillar SPS343 use?

A Caterpillar 3512B V-12 diesel with twin turbochargers feeding a shared aftercooler core, controlled by dual ADEM II modules driving one injector solenoid per cylinder. Family siblings SPF343 (frame/trailer-mounted) and SPT343 (truck-mounted) use the same engine and control architecture.

What is the operating weight of the Caterpillar SPS343?

Not publicly documented. As a skid-mounted pump-drive package rather than a mobile earthmoving machine, available factory literature covers engine and pump performance data rather than shipping or operating weight. Confirm actual weight against the OMM or serial plate for your specific unit.

What replaced the Caterpillar SPS343?

No confirmed direct successor is documented. Later C-suffix pumper packages in this number range, such as the SPF343C, moved to a smaller C4.4 engine as the lineup evolved, but no source ties a specific model to a one-for-one replacement of the skid-mounted SPS343. Verify current equivalents with a Cat dealer.

What SPS343 owners discuss

What kind of machine is the Cat SPS343 and what powertrain does it use?
The SPS343 is a skid-mounted industrial pumper package, not a mobile earthmover, carried under its own serial prefix 8ZZ. It pairs a V12 diesel under ADEM II electronic engine control (unit injectors triggered by twelve cylinder-head solenoids) with twin turbochargers and a shared aftercooler, driving a powershift transmission with a torque-converter lockup clutch into the pump end. Output is metered through the converter lockup rather than by throttle alone, letting an operator hold a low, steady pump rate that a straight mechanical drivetrain can't match.
Does the SPS343 use the same engine control as the sibling SPS342 pumper?
No. The two share the same Pumper-family skid and parts catalog but differ in engine control philosophy. SPS342 runs a mechanical unit-injection V12 with no ECM, protected only by pressure/temperature switches and panel lamps. SPS343 (8ZZ prefix) runs the ADEM II-controlled electronic version of that V12 family, with full sensor-based diagnostics: primary and secondary speed/timing sensors, dual turbo inlet pressure sensors, an atmospheric pressure sensor, and a crankcase pressure sensor. Don't cross-apply mechanical-engine troubleshooting from the SPS342 to the SPS343, or the other way around.
What sensor problems come up most often on the SPS343's ADEM II system?
The two most-discussed failure points are the speed/timing sensor pair and the crankcase pressure sensor. If the primary speed/timing sensor drops out, the ECM quietly switches to the secondary and keeps running, so the loss often goes unnoticed until the secondary also fails, at which point the ECM cuts fuel and the unit won't restart until the primary is replaced. The crankcase pressure sensor and its sense line are prone to fouling from oil mist and condensation on units that idle or run light-load between pumping jobs, which shows up as erratic readings or nuisance shutdown codes rather than a real blow-by problem. Because a shutdown mid-treatment on a well-service job is a safety event, have your dealer verify sensor wiring and calibration rather than swapping parts on a guess.
What wears out first on a skid-mounted pumper like the SPS343?
There's no undercarriage on this machine type, so wear shows up in the drivetrain and skid structure instead. Continuous-duty operation stresses the torque converter lockup clutch and transmission shift solenoids first, since the unit is built to hold a locked, steady output speed through long pumping cycles rather than shift through a normal duty cycle. Transmission oil temperature and pressure switches tend to be the earliest warning of clutch wear. On the engine side, the twin turbochargers and shared aftercooler take the brunt of sustained heavy load; watch for sluggish boost response or oil weeping into the aftercooler core as bearing wear develops. Skid frame and pump-mount welds also see fatigue cracking over years of pump-end vibration, worth a visual check on any high-hour unit.
What should I check before buying a used SPS343 pumper?
Confirm the dataplate serial actually starts with the 8ZZ prefix. The Pumper family includes several look-alike siblings on the same style of skid that share a parts catalog, so a mismatched prefix means you're pricing the wrong model's parts and manuals. Pull the ADEM II fault code history if the seller has it; repeated speed/timing or crankcase pressure codes usually point to wiring or a fouled sense line rather than a bad engine, but should be run down before purchase. Check both turbochargers for shaft play and inspect the aftercooler for oil residue. Cycle the transmission lockup and confirm the converter holds a steady locked speed without hunting, since a shaky lockup engagement is the first sign of clutch wear. Verify the pump stroke counter and treating pressure transducer read correctly and are in calibration, since those are the numbers an operator trusts during an actual job. Have your dealer verify calibration and all safety-shutdown wiring before returning the unit to service.
Why does the SPS343 use a stroke counter and pressure transducer instead of just reading engine rpm for pump rate?
Because the pump rate and treating pressure readings feed directly into how an operator runs a live wellhead job, the system doesn't rely on engine speed alone. A dedicated pump-rate proximity sensor counts actual pump strokes, and a separate treating pressure transducer (4-20mA output) reports wellhead pressure independent of engine load. That split lets the operator see true pump output and downhole pressure even when the engine is working harder because of ambient temperature, altitude, or wear, since engine rpm by itself would understate or overstate what's actually happening at the pump end. Because this feeds pressure-critical well-service decisions, have your dealer verify transducer calibration on any unit that has changed hands.

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

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