Caterpillar PS-150C
Caterpillarpaving compactorpneumatic compactor

Caterpillar PS-150C

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar PS-150C is a self-propelled pneumatic (rubber-tired) asphalt and soil compactor built around a turbocharged Cat 3054C diesel rated at roughly 75 kW (100 hp) gross power. Standard operating weight runs around 4,885 kg (10,770 lb), and ballasted weight climbs to roughly 12,940 kg (28,530 lb) on the base configuration; an HW (heavy-weight) package with 12-ply tires and load-compensating propel valves pushes maximum ballasted weight to roughly 17,100-17,300 kg (about 38,000 lb) — figures vary by source and ballast configuration. Used-equipment listings put PS-150C production through the 2000s and into the early 2010s. Caterpillar positioned the PS-150C as the successor to both the PS-150B and the larger PS-200B pneumatic rollers, folding two separate model lines into one flexible-ballast platform; no confirmed direct successor model is documented for the PS-150C itself.

The core change from the prior PS-150B generation is the move to a turbocharged 3054C engine in place of the naturally aspirated 3054, lifting gross power from roughly 70 hp to 100 hp while keeping the same basic driveline and wheel arrangement. Combining the PS-150B and PS-200B into a single PS-150C platform with optional ballast and an HW package let one machine cover a wider operating-weight range instead of stocking two separate rollers. The 3054-series engine family is shared across Cat's compact backhoe loaders and skid steers of the same era, which keeps engine parts, filters, and rebuild kits broadly available in the used-equipment and aftermarket-parts channels today. Combined with a mechanically simple hydrostatic propel system and no emissions aftertreatment to service, the PS-150C remains a common, budget-friendly used roller for asphalt and aggregate compaction fleets.

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 PS-150C specifications

Engine

Engine modelCat 3054C turbocharged diesel, four-stroke cycle, 4-cylinder, mechanically controlled direct injection
Gross power75 kW (100 hp) @ 2200 rpm
Net power72 kW (96 hp) @ 2200 rpm, rated per ISO 9249 / SAE J1349 / EEC80-1269
Displacement4.4 L (269 cu in)
Bore x stroke105 mm x 127 mm (4.13 in x 5 in)
Emissions certificationMeets U.S. EPA Tier 2 emissions regulations
Air cleanerDual-element, dry-type with visual restriction indicator
Lineage noteThe PS150C succeeds the PS-150B and PS-200B compactors in the Cat pneumatic-roller line; the 3054C replaces the earlier PS-150B's naturally aspirated 3054 engine. Do not carry PS-150B fluid or power figures onto the PS150C.

Weights

Standard machine, empty (6-wheel base)4885 kg (10,775 lb); average 545 kg (1,200 lb) per wheel
Maximum water ballast (base)8710 kg (19,205 lb) total; average 970 kg (2,145 lb) per wheel
Maximum wet-sand ballast / standard max operating weight (base)12,940 kg (28,535 lb) total; average 1440 kg (3,180 lb) per wheel
11-wheel option, empty4955 kg (10,925 lb); average 450 kg (993 lb) per wheel
11-wheel option, maximum wet-sand ballast13,010 kg (28,685 lb) total
Heavy Weight option, maximum wet-sand ballast13,010 kg (28,685 lb) total
Heavy Weight option, maximum iron + wet-sand ballast (top-end operating weight)17,273 kg (38,000 lb) total; average 1920 kg (4,220 lb) per wheel
Heavy Weight + 11-wheel option, maximum wet-sand ballast13,080 kg (28,836 lb) total
Ground/tire contact pressureVaries widely by tire choice, inflation pressure and ballast load; published charts for 6-ply, 12-ply and 14-ply tires span roughly 155-860 kPa (22-125 psi) across the wheel-load and inflation range. Ground contact pressure is tuned on-site by adjusting tire inflation and/or ballast, not a single fixed spec.
Note on published weight figuresEmpty standard weight is listed as 4885 kg (10,775 lb) on the factory spec sheet; some published figures show a few pounds less, likely rounding. Treat the factory figure as authoritative.

Dimensions

Overall length4.29 m (14 ft 1 in) - same for base and 11-wheel option
Compaction/rolling width1.74 m (5 ft 8 in), 69 in standard; 2.13 m (6 ft 11 in), 84 in with 11-wheel option
Height at steering wheel2.32 m (7 ft 7 in)
Height at ROPS3.0 m (9 ft 10 in)
Wheelbase3.34 m (10 ft 11 in)
Ground clearance267 mm (10.5 in)
Front/rear wheel-path overlap13 mm (0.5 in)
Outside turning radius6.45 m (21 ft 2 in)
Inside turning radius4.64 m (15 ft 3 in) standard; 4.44 m (14 ft 7 in) with 11-wheel option
Wheel oscillation angle+/-4.4 degrees front and rear; with 11-wheel option the outside rear wheels oscillate 0 degrees up / 4.4 degrees down
Steering angle37.5 degrees each direction

Performance

Travel speed, low range (forward and reverse)0-11 km/h (6.8 mph)
Travel speed, high range, standard machine0-18.5 km/h (11.5 mph)
Travel speed, high range, Heavy Weight optionUp to 25.6 km/h (15.9 mph); load-compensating propel valves raise both speed and braking torque on grades
Wheel/tire configuration, base6-ply 8.50/90 x 15 bias tires, 5 wheels front / 4 wheels rear
Wheel/tire configuration, 11-wheel option6-ply 8.50/90 x 15, two additional rear wheels added; intended for chip-seal work, not combinable with the ballast option
Wheel/tire configuration, Heavy Weight option12-ply tires standard; 14-ply also offered for higher ground contact pressure
GradeabilityNo numeric gradeability percentage published; Cat literature only states the machine is built for speed and gradeability, with the Heavy Weight option's load-compensating valves improving torque and braking on grades
Backup alarm107 dB(A), standard equipment

Service capacities (summary)

Fuel tank173 L (45.6 gal) rated capacity; usable capacity noted as 162 L (42.8 gal)
Hydraulic system54.9 L (14.5 gal)
Engine oil, with filter7.3 L (1.9 gal); 500-hour standard oil change interval
Cooling system16.1 L (4.2 gal); coolant is premixed 50% Extended Life Coolant, freeze protection to -37C (-35F)
Water spray tank394 L (104 gal); gravity-fed system with galvanized distribution bars and retractable tire scrapers, pressurized spray system optional
Brake system0.3 L (0.08 gal)
Axle2.7 L (0.71 gal)
Ballast capacity (not a fluid, listed for reference)Total ballast compartment volume 4.3 cu m (150 cu ft): primary 3.9 cu m (139 cu ft), secondary 0.4 cu m (11 cu ft)

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

PS-150C fluids & capacities

SystemCapacityRecommended fluid
Engine crankcase (with filter) — Cat 3054C turbocharged diesel7.3 L (1.9 US gal)Cat DEO (Diesel Engine Oil), SAE 15W-40, API CI-4 or higher. Multigrade oil covers a broad ambient range; Cat also offers 10W-30 and 0W-40 grades for cold-climate starts. Standard oil-and-filter interval is 500 hours on this engine.
Cooling system16.1 L (4.2 US gal)Cat ELC (Extended Life Coolant), factory premix, for long-life corrosion/freeze protection. Cat DEAC (Diesel Engine Antifreeze/Coolant) is the lower-cost alternate but needs more frequent supplemental coolant additive checks.
Fuel tank173 L (45.6 US gal) rated capacity; factory data notes actual usable fill is 162 L (42.8 US gal)No. 2-D diesel fuel meeting ASTM D975 or equivalent; use a winterized/low-temperature blend below freezing to prevent gelling.
Hydraulic system / hydraulic tank (propel, steering, implement circuits)54.9 L (14.5 US gal)Cat HYDO Advanced 10, or Cat TDTO (both Cat-approved for hydrostatic-drive compactor hydraulic circuits). Grade follows ambient temperature: a 10W-weight oil for cold climates down to roughly -20°C, a heavier 30- or 50-weight for sustained hot climates. Confirm the exact grade against this machine's own lubricant chart before top-off.
Secondary brake circuit0.3 L (0.08 US gal)Same hydraulic oil as the machine's hydraulic system — the spring-applied, hydraulically-released disc brake runs off system hydraulic fluid, not a separate DOT-rated brake fluid.
Axle / final drive compartments (rear drive axles, combined)2.7 L (0.71 US gal)Cat TDTO (Transmission/Drive Train Oil). SAE 30 is the standard-climate grade; SAE 10W for cold climates, SAE 50 for sustained hot climates.
Water (tire spray) tank394 L (104 US gal)Clean water for the gravity tire-wetting spray system, which keeps asphalt from sticking to the pneumatic tires. No oil or antifreeze is specified for normal service; in freezing conditions drain the system or add an approved non-corrosive antifreeze per cold-weather guidance.
Grease points (wheel bolster oscillation pivots, ROPS mounts, steering linkage) — spec onlyPer-point service, not a bulk refillCat Multipurpose Grease (MPGM), NLGI Grade 2, for standard-temperature service. Cat's cold-weather (Arctic-rated) and extreme-pressure (moly-fortified) greases are the alternates for harsh climates or heavily loaded pins.

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

Caterpillar PS-150C maintenance schedule

Service intervalTasks
Every 10 h
  • Walk around the machine and check for hydraulic, fuel, and coolant leaks before startup
  • Check engine oil and coolant levels on the 3054C, top off as needed
  • Check and equalize tire inflation pressure across all wheels — pressure spread between tires causes uneven compaction and premature tread wear
  • Check the water spray tank level and confirm spray nozzles and tire scraper bars are clear of hardened asphalt
  • Grease propel and steering pivot pins, cylinder pins, and articulation grease fittings (weekly)
  • Check battery terminals, electrolyte level, and alternator belt tension (weekly)
Every 250 h
  • Change engine oil and filter on the 3054C
  • Replace the fuel filter/water separator element
  • Inspect and adjust drive belt tension
  • Inspect wheel-drive hub and propel motor housings for seal leaks
  • Clean or replace the engine air filter primary element per the service indicator
Every 500 h
  • Change the hydraulic system return filter element
  • Check wheel-drive hub gear oil level and condition, top off if needed
  • Inspect fuel tank cap and breather for restriction
  • Check ROPS mounting hardware torque
  • Inspect tire scraper adjustment and spray nozzle wear, replace worn scrapers
Every 1,000 h
  • Inspect and adjust engine valve lash on the 3054C
  • Pull fluid samples (engine oil, hydraulic oil, coolant) for lab analysis
  • Change the hydraulic tank breather
  • Check wheel-drive and propel motor gear oil, change if contaminated
  • Torque-check wheel hub and axle fasteners
Every 2,000 h
  • Change hydraulic system oil
  • Inspect the turbocharger for shaft play, boost leaks, and oil seepage
  • Inspect radiator core and oil cooler fins, clean packed asphalt dust and debris
  • Re-check and adjust valve lash if not completed at the prior interval
  • Inspect and rebuild worn tire scraper and water-spray system components as needed
Every 6,000 h
  • Change engine coolant (or service extended-life coolant per its renewal interval) and pressure-test the cooling system
  • Overhaul or replace propel and wheel-drive motors showing case-drain wear trends
  • Inspect main hydraulic pump and steering circuit for wear, rebuild as indicated by sampling history
  • Evaluate the 3054C for in-frame overhaul — this engine family commonly runs well past this point before a major rebuild is required

Servicing the PS-150C beyond the schedule

Predictive Maintenance & Fluid Analysis

The PS-150C's turbocharged 3054C shares its block with Cat's compact backhoe and skid-steer engines, so scheduled S·O·S sampling of engine oil, hydraulic oil, and coolant catches turbo and bearing wear early. Track tire inflation across all wheels — pressure drift signals a slow leak before it costs a tire or throws off compaction uniformity. Watch wheel-drive hub gear oil for water intrusion from the spray system, and trend hydraulic case-drain temperature on the propel circuit to flag pump or motor wear before it strands the roller mid-shift.

Corrective & Common Repairs

Recurring PS-150C issues center on the wheel-drive hubs and water spray system: hub seal leaks from heat-cycling near hot asphalt, clogged spray nozzles, and worn tire scraper bars that let asphalt build up on the tires and unbalance the roll. The turbocharger on the 3054C is prone to premature wear in dusty paving environments if air filter service slips. Propel motor and steering-cylinder leaks show up as drift or sluggish response — chase these at the hose fittings and cylinder seals before condemning the pump.

Overhaul & Rebuild Points

Past the mid-service-life mark, plan for wheel-drive hub planetary and propel motor rebuilds, since these carry the compaction load and see the most wear on a pneumatic roller. The 3054C commonly runs well beyond 2000 hours before needing an in-frame overhaul if oil and coolant service stayed on schedule. Inspect hydraulic pump and steering-circuit components for wear at major service points, and check ballast-weight mounting hardware and ROPS structure for fatigue, especially on machines run with the HW heavy-ballast package.

Seasonal & Environment Servicing

Drain the water spray tank, lines, and pump before freezing weather to prevent cracked components — this system is the PS-150C's most freeze-vulnerable part. Check coolant freeze protection and use engine block heating for cold starts. In hot paving conditions, keep the oil cooler and radiator fins clear of packed asphalt dust and clean the tire scrapers often, since heat accelerates asphalt buildup on the tires. Adjust tire pressure for seasonal temperature swings to keep compaction uniform across the roll.

PS-150C common service parts

Part numberPart
1R-1804Filter Element-Wtr Sep & FuelCheck fitment →
207-2757SealCheck fitment →
110-6326Filter Element As-AirCheck fitment →
110-6331Filter Element As-AirCheck fitment →
1G-8878Filter As-OilCheck fitment →

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

PS-150C fault codes & troubleshooting

CodeMeaningLikely causeWhat to do
Engine Oil Pressure warning lamp (red)Engine oil pressure has dropped below the safe operating threshold.Low oil level, worn oil pump, clogged filter, or failed pressure sender/switch.Shut engine down immediately, check oil level and filter condition before restarting.
Coolant Temperature warning lamp (red)Engine coolant temperature has exceeded the safe operating range.Low coolant level, blocked radiator core, slipping or failed fan drive, faulty thermostat.Idle down, let engine cool, check coolant level and radiator fins/screen for debris.
Alternator / Charging System warning lamp (amber)Charging system is not producing adequate output.Worn or slipping belt, failed alternator, loose or corroded battery/charging wiring.Check belt tension and battery connections; test alternator output.
Air Filter Restriction indicatorIntake air filter restriction has reached the service limit.Dirty or clogged primary/secondary air filter element.Service or replace the air filter element and reset the restriction indicator.
Hydraulic Oil Temperature warning lamp (amber)Hydraulic system oil temperature is above normal operating range.Low hydraulic fluid level, clogged oil cooler, relief valve stuck, extended high-load operation.Idle to allow cooling, check fluid level and cooler for blockage.
Parking Brake indicator lampParking brake is engaged or brake pressure is insufficient to release.Brake left applied, low brake system pressure, faulty pressure switch.Confirm brake control position and check hydraulic brake release pressure.

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

PS-150C attachments & work tools

Machine type / attachment compatibility

PS-150C is a self-propelled 9-wheel pneumatic-tire (rubber-tired) asphalt roller, not a carrier chassis. It does not run a quick-coupler work-tool system like excavators or skid steers; "attachments" for this class mean factory-fit rolling/ballast/operator options rather than swappable implements.

Tire and wheel package

Standard configuration is 9 wheels (5 front, 4 rear) with overlapping tracking for full-width coverage; an 11-wheel option is available for wider coverage. Standard tires are bias-ply (around 8.50/90x15, 6-ply); options include 12-ply and 14-ply tires and a 7.50x15 radial tire package for higher load ratings and durability.

Ballast / operating-weight system

Base machine runs roughly 4,885-4,955 kg (10,770-10,925 lb) unballasted. A Heavy Weight (HW) ballast option adds about 6,168 kg (13,600 lb) of steel ballast, pushing maximum operating weight up to about 17,273 kg (38,000 lb) and maximum wheel load to about 1,920 kg (4,220 lb) for thick lifts and harsh mixes. Ballast on this series is added as steel weight rather than a water-fillable chamber.

Tire care / water spray system

A pressurized water spray tank of about 394 L (104 gal) feeds nozzles at each wheel to keep tire treads wet and reduce asphalt pickup. Optional heat-retention shields (tire skirts/thermal aprons) trap tire heat between passes to help prevent mix from sticking to the rubber; adjustable scrapers are typical for this roller class to keep wheel faces clean.

Operator station and protection

Standard equipment includes a Roll Over Protective Structure (ROPS) and a wide retractable seat belt. Optional items include a sun canopy, a suspension seat, and a rotating (reversible) operator's station that lets the operator swing the control console from the left side to the right side for better sightlines along the mat edge.

Lighting, instrumentation and traction

Options include a roading light package for public-road travel, a speedometer, and a traction control function to help maintain drive on grades or soft mix. These are factory-fit options rather than field-installed attachments.

All PS-150C assemblies by section

Every catalogued assembly group for the Caterpillar PS-150C. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Air Inlet And Exhaust System
240-0510 Air Cleaner Gp
11***26Filter Element As-Air; (Primary)1
11***31Filter Element As-Air; (Secondary)1
11***17Valve-Dust; (Air Cleaner)1
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253-2512 Muffler Gp
12***24Muffler1
14***51Clamp-Tubing1
25***04Tube As1
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241-1699 Turbocharger Gp
10***16Bolt; (M6x16-mm)2
14***67Clamp-Hose2
14***53Stud7
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Basic Engine
232-7528 Camshaft Gp
1B***36Key-Woodruff1
22***67Camshaft1
23***28Camshaft Group1
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251-6242 Cover Gp-Cylinder Head
11***79Gasket3
11***62Plate3
25***41Bolt-Special; (M8x1.25x20-mm)(M8x1.25x20-mm)4
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230-9196 Cover Gp-Front Housing
10***30Bolt; (M10x1.5x20-mm)1
11***22Bolt; (M8x16-mm)5
21***03Washer; (Sealing)1
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234-0251 Cover Gp-Valve Mechanism
10***38Bolt; (M6x20-mm)2
11***04Seal-O-Ring1
13***88Cap-Oil Filler; (Engine)1
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232-7439 Crankshaft Gp
03***90Washer-Thrust; (Standard-Upper)(Upper)2
03***91Washer-Thrust; (Standard-Lower)(Lower)2
06***73Washer-Thrush (Upper) .18mm (.007in)0
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232-7606 Cylinder Block Gp
20***19Bolt; (M8x1.25x16-mm)10
23***49Housing As1
23***04Cylinder Block Group1
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232-7604 Cylinder Block Gp
03***68Bolt; (5/8-18x3.75-In)10
06***02Dowel10
06***06Plug1
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232-7524 Cylinder Head Gp
22***01Bolt; (M15x1.5x137-mm)7
22***02Bolt; (M15x1.5x162-mm)3
23***19Cylinder Head Group1
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232-7519 Cylinder Head Gp
06***06Plug4
14***79Retainer-Valve Spring16
18***82Guide-Valve8
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234-9680 Drive Gp-Fan
11***59Bolt; (M10x1.5x35-mm)4
12***97V-Belt Set; (Includes 2-Belts)(1283-mm) (Fan Drive)1
13***79Pulley-Fan Drive1
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153-4980 Drive Gp-Pump
0T***24Bolt 9.525 mm(.375 In.) Dia. N. C.8
10***33. Pedestal, Flange-Nylon1
15***80Drive Group-Pump1
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230-7286 Flywheel Gp
03***87Ring-Starting Motor; (126-Teeth)1
0S***03Bolt,Machine Fuel Pump Drive Gear Mounting10
16***89Flywheel As1
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223-7825 Housing Gp-Flywheel
10***57Plate1
12***83Bolt; (M10x1.5x30-mm)6
14***76Housing-Flywheel1
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232-6179 Housing Gp-Front
06***79Dowel1
10***51Bolt; (M8x1.25x65-mm)5
10***30Bolt; (M10x1.5x20-mm)1
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232-3713 Lifting Gp-Engine
10***30Bolt; (M10x1.5x20-mm)4
22***48Plate-Lifting1
23***13Lifting Group-Engine1
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252-6456 Mounting Gp-Engine
19***32Support-Front; (Lh)1
19***34Support-Front; (Rh)1
19***36Stud8
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240-0507 Mounting Gp-Engine Flexible
24***07Mounting Group-Engine Flexible1
24***20Support As-Engine1
4P***81Clip (For Use With 7.9mm Wide Tie Wrap)2
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230-8144 Pan Gp-Oil -Engine
06***13Gasket1
10***71Bolt6
12***02Tube As1
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232-7442 Piston & Rod Gp
12***36Ring-Retaining2
22***36Kit-Piston Ring1
22***37Piston As4
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253-2479 Plug Gp-Engine -Cylinder Block
03***63Plug1
19***67Seal-O-Ring1
23***61Plug; (Blanking)1
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232-6204 Plug Gp-Engine
19***51Seal-O-Ring1
23***22Plug1
23***04Plug Group-Engine1
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225-4317 Plug Gp-Engine
22***17Plug Group-Engine1
2B***58Plug--To Block Upper Front Air Manifold3
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230-7353 Pulley Gp-Crankshaft
23***53Pulley Group-Crankshaft1
6I***01Block1
6I***02Pulley1
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283-7620 Service Gp-Engine
15***25Valve-Fluid Sampling1
15***70Cap-Dust; (Engine Coolant)1
15***55Adapter1
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232-7526 Valve Mechanism Gp
06***95Rod8
13***53Tappet8
18***46Screw2
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Braking System
249-6709 Brake Gp-Parking
13***64Disc-Friction5
13***65Spring10
13***66Shaft1
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241-9392 Brake Gp-Parking -Right Rear
08***35Tee1
0S***29Bolt (1" Long)1
12***29Fastener Group; (Universal Joint)1
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241-9414 Brake Gp-Parking -Left Rear
0S***29Bolt (1" Long)1
12***29Fastener Group; (Universal Joint)1
12***30Shaft Group-Drive1
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247-4172 Lines Gp-Brake & Shift
10***64Hose As1
11***78Hose As1
12***64Hose As1
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1g-9759 Valve Gp-Brake & Shift
10***18Coil2
15***79Kit-Seal; (Relief Valve, Conveyor Cont)1
1G***76Valve Group-Check; (Brake Control)1
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120-7071 Valve Gp-Brake Control
12***71Valve Group-Brake Control1
14***16Connector Group1
14***40Adapter; (Straight) (-8 Orb X -8 Orfs)1
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Cooling System
231-0038 Connection Gp-Water
10***51Bolt; (M8x1.25x65-mm)1
23***38Connection Group-Water1
25***69Connection Group-Water; (Temperature Regulator)1
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296-5616 Cooler Gp-Engine Oil
10***95Bolt; (M8x1.25x35-mm)4
22***17Cooler-Oil; (Engine)1
22***18Seal2
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238-2799 Cooler Gp-Fltr Base & Eng Oil
22***41Plug1
22***44Gasket; (Engine Oil Filter Base)2
23***51Plate; (Blanking)1
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153-5030 Fan Gp-Suction
14***88Spacer-Fan1
14***91Spider As; (9-Blade)1
15***61Bolt; (M8x1.25x130-mm)4
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230-7355 Pump Gp-Water
10***51Bolt; (M8x1.25x65-mm)5
11***29Bolt; (M8x1.25x75-mm)2
22***38Seal-O-Ring1
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240-0508 Radiator & Hyd Oil Cooler Gp
06***86Connector1
15***24Hex Head Plug; (-4sae) (D6r Iii)1
18***25Radiator & Hydraulic Oil Cooler Group1
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186-2725 Radiator & Hyd Oil Cooler Gp
00***65Cap-Radiator; (7 Psi)1
18***23Radiator As1
18***24Cooler As-Hydraulic Oil1
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240-0509 Recovery Gp-Coolant
1P***78Clamp; (Hose)2
22***08Tank Group-Coolant1
22***69Cap As-Vented; (Coolant Recovery)1
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Electrical And Starting System
244-1090 Alarm Gp
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
18***35Pin-Connector; (16-Ga To 18-Ga)2
24***90Alarm Group; -Backup1
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233-9533 Alternator Gp-Charging
06***66Washer1
10***51Bolt; (M8x1.25x130-mm)1
11***49Nut; (M12-1.75x93-mm-Thd)1
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240-1428 Battery & Wiring Gp
03***25Terminal-Ring; (For 3/8" Fastener)1
03***97Boot1
03***17Tread-Nonskid2
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240-5535 Converter Gp-Electrical
24***35Converter Group-Electrical1
30***83Resistor As; (24-Volt)1
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240-1427 Electrical Ar
12***65Horn Group-Electric1
12***63Wiring Group-Front1
24***27Electrical Ar1
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233-9834 Glow Plug Gp
22***70Glow Plug; (24-Volt)(12-Volt)4
23***26Clip1
23***34Glow Plug Group1
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9x-4381 Lamp Gp-Flood
8T***37Screw; (Machine) (M4x0.7x12mm)2
8T***21Washer-Hard; (11x21x2.5-mm Thk)(M10x1.50x30mm)1
8T***33Nut (M10x1.50 Thd)1
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241-9374 Lighting Gp-Flood
12***55Support As2
24***74Lighting Group-Flood1
3K***50Switch As-Light; -Floodlights1
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120-4187 Solenoid Gp-Throttle
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)1
11***17Solenoid1
12***87Solenoid Group-Throttle; -Governor1
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230-7304 Starting Motor Gp-Electric
22***50Starting Motor Group-Electric1
23***04Starting Motor Group-Electric1
6I***64Stud; (M10x1.5x30-mm)3
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7n-0718 Switch Gp-Disconnect -Battery
2H***22Lockwasher2
6F***45Nut-Full; (3/8-24-Thd)2
7N***18Switch As-Disconnect; -Battery-Ground Level1
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3k-1650 Switch Gp-Rotary
3K***50Switch As-Light; -Floodlights1
5L***00Screw (Part Of 2s***42 Assem.)1
6V***62Screw-Machine; (8-32x0.31-In)4
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9w-1077 Switch Gp-Start
3B***01Lockwasher (Part Of 3f***99 Switch)1
5L***00Screw (Part Of 2s***42 Assem.)1
6V***64Screw-Machine; (10-32x9.52-mm)4
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221-1638 Switch Gp-Differential Lock
16***46Support As1
16***47Hood1
1B***78Nut,Plain,Hexagon Rod To Lever Uoc:Bsv,Bsx2
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118-3534 Switch Gp-Magnetic
11***34Switch Group-Magnetic; -Start Relay1
17***08Switch Group-Magnetic; -24-Volt-Start Relay-Main Relay1
17***09Switch Group-Magnetic; -24-Volt-Start Relay1
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175-2309 Switch Gp-Magnetic
01***80Lockwasher2
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
11***81Switch As-Magnetic; (Start Relay)1
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175-2308 Switch Gp-Magnetic
01***80Lockwasher2
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
17***08Switch Group-Magnetic; -24-Volt-Start Relay-Main Relay1
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241-8368 Switch Gp-Magnetic
15***70Kit-Connecting Plug; (2-Pin)(Engine Sensor Wiring Harness)1
18***36Socket-Connector; (16-Ga To 18-Ga)2
24***68Switch Group-Magnetic; -Main Power Relay-Main Relay1
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273-9692 Warning Gp-Backup
13***89Clip; (Ladder)1
24***90Alarm Group; -Backup1
27***92Warning Group-Backup1
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220-8260 Wiring Gp-Differential Lock
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
10***39Holder-Fuse1
15***70Kit-Connecting Plug; (2-Pin)(Engine Sensor Wiring Harness)2
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240-1429 Wiring Gp-Engine
10***20Plug As-Connector; (2-Pin)1
10***01Kit; (Receptacle) (12-Pin) (Includes Receptacle As & Wedge)1
10***04Kit-Receptacle; (4-Pin)(Start Switch)2
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129-5663 Wiring Gp-Front
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
10***03Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge)2
10***05Kit-Receptacle; (6-Pin)(Display Monitor Harness)1
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352-4637 Wiring Gp-Rear
03***49Nut-Self Lock; (No.10.Unc)4
0T***42Bolt2
12***24Clamp1
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Engine Arrangement
318-4351 Engine Ar
24***06Installation Ar-Engine1
29***51Engine Ar-Primary1
31***51Engine Ar1
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297-4051 Engine Ar-Primary
22***25Housing Group-Flywheel1
22***17Plug Group-Engine1
23***86Flywheel Group1
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240-0506 Installation Ar-Engine
15***80Drive Group-Pump1
15***30Fan Group-Suction; -Without Air Conditioner1
24***06Installation Ar-Engine1
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Frame And Body
352-4628 Frame Gp-Main
08***63Cover-Manhole1
09***71Gasket1
12***85Plate1
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243-3559 Hood Gp-Engine
09***66Washer; (Hard) (4.5x9x1mm Thk)4
12***97Plate2
12***23Seal; (32-cm)0
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247-6466 Scraper Gp-Tire -9-Wheel
07***93Mat; (Cocoa)9
07***02Arm-Scraper9
07***41Bar-Backup9
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165-4221 Skirt Ar-Tire -9-Wheel
16***13Skirt Group-Tire; -Front1
16***21Skirt Ar-Tire; -9-Wheel1
17***28Skirt Group-Tire; -Rear, 9-Wheel1
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175-7028 Skirt Gp-Tire -Rear, 9-Wheel
15***16Lanyard6
16***23Plate As; (Lh)1
16***27Plate As; (Rh)1
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162-2013 Skirt Gp-Tire -Front
05***80Bar1
15***16Lanyard6
16***13Skirt Group-Tire; -Front1
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Fuel System
247-4916 Governor Gp
11***18Clip1
12***87Solenoid Group-Throttle; -Governor1
22***94Plate1
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240-0511 Lines Gp-Fuel
10***03Plate-Cover2
15***80Clamp-Half4
23***42Bracket As2
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237-8259 Pump Gp-Fuel Injection
03***17Union1
06***64Fitting-Flared1
06***65Fitting-Brass1
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237-8185 Pump Gp-Fuel Injection
14***45Valve Group-Solenoid; (24-Volt)(Fuel Shutoff)1
15***68Seal-O-Ring1
23***85Pump Group-Fuel Injection1
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233-9417 Pump Gp-Fuel Prm & Prim Filter
12***72Bolt3
21***08Fitting; (Quick Disconnect, Male)1
21***09Fitting; (Quick Disconnect, Female)1
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299-9265 Pump Gp-Fuel Prm & Prim Filter
1R***04Filter Element-Wtr Sep & Fuel1
20***57Seal; (Fuel Filter)1
22***14Bowl As1
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240-1455 Tank & Mtg Gp-Fuel
12***09Valve-Ball; (Hydraulic Tank Drain)2
14***36Adapter; (Straight) (-6 Orb X -6 Orfs)1
14***53Elbow, 45,-6 Orb To-6 Orfs-Drum Clutch Port1
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277-0638 Tank Gp-Fuel
24***56Tube As-Fuel1
27***43Cap-Fuel Filler; (Lockable)1
27***37Tank-Fuel1
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Hydraulic System
230-2067 Actuator Gp-Pump -Propel
09***01Bolt-Socket Head; (M8x1.25x40-mm)4
11***42Nut; (M16x1.5-mm-Thd)1
15***59Cover1
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127-5113 Cap & Strainer Gp-Hyd Oil Fill
12***13Cap & Strainer Group-Hydraulic Oil Fill1
3G***61Gasket1
4B***82Ball; (9.52mm)1
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122-3755 Cylinder Gp-Hydraulic -Steering
03***69Bearing1
07***85Washer1
08***23Seal1
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240-1433 Filter & Mtg Gp-Hydraulic
14***05Adapter Group1
14***81Elbow Group3
16***86Tee Group1
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133-1858 Head Gp-Pump
12***17Plug1
12***56Cap1
12***24Valve Group-Relief; -Pressure Override1
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240-1447 Hydraulic Ar
12***71Valve Group-Brake Control1
12***79Pump Group-Hand; -Parking Brake Release1
21***62Strainer Group; -Brake, Differential Flushing1
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240-1430 Hydraulic Ar-Auxiliary
12***75Pump & Mtg Group-Steering1
12***76Cylinder & Mtg Group-Steering1
12***58Lines Group-Pump; -Steering1
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122-1705 Lines Gp-Drain
10***05Plate1
12***05Lines Group-Drain1
12***49Hose As1
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240-1432 Lines Gp-Filter -Hydraulic Oil
10***21Hose As1
1S***94Clip-R.H. Side Engine Support2
24***32Lines Group-Filter; -Hydraulic Oil1
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240-1444 Lines Gp-Flushing -Brake, Differential
09***49Clip1
10***05Plate2
13***94Hose As1
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245-7440 Lines Gp-Hydraulic -Steering Pump
12***00Hose As1
24***40Lines Group-Hydraulic; -Steering Pump1
7R***08Clamp2
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247-5478 Lines Gp-Hydraulic -Propel
12***66Hose As1
12***67Hose As1
12***68Hose As1
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240-1431 Lines Gp-Hydraulic Oil Cooler
10***18Hose As1
11***75Valve-Bypass; (Hydraulic Oil Cooler)1
12***59Hose As1
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127-2358 Lines Gp-Pump -Steering
12***50Hose As1
12***55Hose As1
12***58Lines Group-Pump; -Steering1
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120-8386 Motor Gp-Piston -Propel
10***17Seal-O-Ring1
10***03Seal-O-Ring1
11***61Seal-O-Ring1
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246-6456 Pump & Mtg Gp-Auxiliary
14***54Elbow; (45) (-8/-8 Orb/Orfs)1
16***16Adapter As1
18***08Elbow As1
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179-3271 Pump Gp-Charge
11***96Key-Shaft1
11***21Seal1
12***77Bushing-Coupling1
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255-9152 Pump Gp-Gear -Auxiliary
25***85Kit-Seal; (Auxiliary Pump)1
25***29Key-Woodruff1
25***49Lockwasher1
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121-6758 Pump Gp-Gear -Steering
12***58Pump Group-Gear; -Steering1
14***45Kit-Seal; (Steering Gear Pump)1
14***23Kit-Relief Valve; (Steering Gear Pump)1
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229-8573 Pump Gp-Piston -Propel
08***01Plug As2
09***45Plug-Hex; (9/16-18 Thd)5
11***28Screw2
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229-8596 Pump Gp-Piston -Propel
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
18***35Pin-Connector; (16-Ga To 18-Ga)2
22***73Pump Group-Piston; -Propel1
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137-4581 Rotating Gp-Motor -Propel
11***16Screw14
13***81Rotating Group-Motor; -Propel1
13***83Pin-Center1
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179-1307 Rotating Gp-Pump -Propel Piston Pump
11***70Ring-Retaining1
12***00Piston As9
12***01Spring Set1
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211-8262 Strainer Gp -Brake, Differential Flushing
15***68Screen-Suction1
21***62Strainer Group; -Brake, Differential Flushing1
21***65Housing1
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246-2620 Tank Gp-Hydraulic
12***98Gauge-Liquid Level; (Hydraulic Tank)1
14***78Screen-Suction; (Hydraulic Tank Outlet-Vibratory Pump)3
14***13Adapter Group1
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247-7003 Tank Gp-Hydraulic
12***13Cap & Strainer Group-Hydraulic Oil Fill1
24***06Tank As-Hydraulic1
24***03Tank Group-Hydraulic1
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175-4391 Valve Gp-Pump Control -Propel
09***22Bolt-Socket Head; (M5x0.8x10-mm)2
10***86Bolt-Socket Head; (M6x1x50-mm)4
11***92Pin1
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6e-4402 Valve Gp-Relief -Charge Pressure
16***15Retainer-Spring1
18***10Screw1
20***42Spring1
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126-1424 Valve Gp-Relief -Pressure Override
11***18Seal-O-Ring1
12***91Seal-O-Ring1
12***24Valve Group-Relief; -Pressure Override1
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Lubrication System
232-7378 Filter Gp-Engine Oil
23***78Filter Group-Engine Oil1
7W***26Filter As-Engine Oil1
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230-7578 Pump Gp-Engine Oil
10***61Bolt; (M10x1.50x50-mm)5
22***29Pump As-Engine Oil1
23***78Pump Group-Engine Oil1
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Machine Arrangement
352-4630 Chassis Ar
12***05Lines Group-Drain1
12***85Tank & Mtg Group-Water1
20***85Bar Group-Oscillating & Steering1
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352-4626 Common Ar
12***72Rops Group1
24***27Electrical Ar1
24***30Hydraulic Ar-Auxiliary1
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Operator Station
351-7909 Bracket Gp-Mounting
24***72Bracket Group-Mounting1
35***09Bracket Group-Mounting1
5C***61Nut (M8x1.25 Thd); (M8x1.25 Thd)4
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245-0772 Bracket Gp-Mounting
24***68Bracket As1
24***72Bracket Group-Mounting1
24***06Bracket1
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352-4636 Canopy Gp
18***98Bracket1
19***66Washer-Hard; (11x25x10-mm Thk)7
35***06Canopy As1
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351-7904 Console Gp-Instrument
10***01Kit; (Receptacle) (12-Pin) (Includes Receptacle As & Wedge)1
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)1
10***83Lamp; (24-Volt)(Implement Indicators)3
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243-3546 Console Gp-Operator
10***01Kit; (Receptacle) (12-Pin) (Includes Receptacle As & Wedge)2
10***02Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness)2
11***70Lamp; (24-Volt)(Red)1
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240-1425 Control Gp-Direction & Speed
12***81Cable-Propel1
12***89Plate1
24***25Control Group-Direction & Speed1
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186-3380 Control Gp-Handle -Propel Lever
08***72Seal-O-Ring1
10***16Screw; (4-40x15.88-mm)4
10***21Cap1
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108-7735 Guard Gp-Vandalism
10***51Cover1
10***35Guard Group-Vandalism1
1G***95Bolt2
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120-7065 Horn Gp-Electric
12***65Horn Group-Electric1
16***01Horn As; (24-Volt, Low Tone)1
8T***21Washer-Hard; (11x21x2.5-mm Thk)(M10x1.50x30mm)1
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321-0119 Lever Gp-Propel
12***76Tube-Heat Shrink; (17.78-mm Dia)(140-cm)0
14***38Boot1
15***70Kit-Connecting Plug; (2-Pin)(Engine Sensor Wiring Harness)1
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126-3693 Lock Gp-Rotation
12***74Latch-Spring1
12***93Lock Group-Rotation1
5C***61Nut (M8x1.25 Thd); (M8x1.25 Thd)2
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351-7902 Operator Ar
10***35Guard Group-Vandalism1
12***57Control Group-Steering1
12***60Lines Group-Steering1
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351-7908 Platform Gp-Operator
03***49Nut-Self Lock; (No.10.Unc)2
05***02Plug1
09***92Locknut; (M6x1-Thd)6
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115-8488 Pump Gp-Hand -Parking Brake Release
11***88Pump Group-Brake; -Parking Brake Release1
11***20Pump1
11***21Valve-Check2
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127-5679 Pump Gp-Hand -Parking Brake Release
11***75Valve-Needle1
11***88Pump Group-Brake; -Parking Brake Release1
12***79Pump Group-Hand; -Parking Brake Release1
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121-7972 Rops Gp
12***72Rops Group1
33***10Bar As1
8T***67Washer-Hard; (26x44x4-mm Thk)16
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221-4045 Seat Gp-Suspension -Vinyl
22***45Seat Group-Suspension; -Vinyl1
23***67Seat Belt Group; (Retractable, 76-mm)(Vinyl)1
23***51Seat Group-Suspension; -Vinyl1
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235-3151 Seat Gp-Suspension -Vinyl
19***32Kit-Foam Back1
20***36Kit-Damper1
20***37Kit-Seat; (Indicators)1
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243-3552 Support Gp-Seat -Swivel
07***72Cap1
12***81Support Group-Seat; -Swivel1
12***83Plate As1
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124-4481 Support Gp-Seat -Swivel
11***80Plate1
12***81Support Group-Seat; -Swivel1
12***74Platform As1
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Power Train
210-0698 Axle Gp-Drive
13***41Cover-End1
13***07Bearing As-Tapered Roller2
13***08Bearing As-Tapered Roller2
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213-4812 Axle Gp-Drive
07***67Shim; (0.08-M Thk)(.03 mm)4
07***05Shim; (3.5-mm Thk)(3.5mm Thk)4
0S***29Bolt (1" Long)2
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203-3829 Axle Gp-Front -2-Wheel
07***68Setscrew1
12***73Axle1
20***06Housing1
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203-2733 Axle Gp-Front
00***12Cup-Roller Bearing10
05***20Pin-Spring5
07***72Ring-Seal5
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203-3830 Axle Gp-Front -1-Wheel
07***14Pin-Roll1
12***74Axle1
20***05Housing1
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241-9400 Hydraulic Ar-Propel -Traction
22***60Pump & Mtg Group-Propel1
22***42Lines Group-Propel1
22***60Wiring Group-Differential Lock1
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220-4942 Lines Gp-Propel
22***42Lines Group-Propel1
22***75Hose As1
22***77Hose As1
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241-9416 Motor & Mtg Gp-Propel -Left Rear
09***05Bolt-Socket Head; (M14x2x40-mm)4
12***86Motor Group-Piston; -Propel1
24***16Motor & Mtg Group-Propel; -Left Rear1
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241-9398 Motor & Mtg Gp-Propel -Right Rear
09***05Bolt-Socket Head; (M14x2x40-mm)4
12***86Motor Group-Piston; -Propel1
24***98Motor & Mtg Group-Propel; -Right Rear1
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241-9505 Power Train Ar
20***33Axle Group-Front1
21***12Axle Group-Drive1
24***05Power Train Ar1
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220-4560 Pump & Mtg Gp-Propel
14***08Adapter As1
14***27Connector Group3
14***28Connector Assem.1
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122-3630 Shaft Gp-Drive
02***87Fitting-Grease; (Universal Joint)1
12***30Shaft Group-Drive1
14***83Kit-Cross & Bearing; (Drive Shaft)2
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246-6458 Valve Gp-Flow Divider -Propel Pump
13***45Seal Kit; (Includes Parts Marked J)1
20***83Kit-Seal1
23***36Seal Kit; (Includes Seals And Rings)2
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8c-0094 Wheel & Tire Gp
07***83Wheel As1
08***37Tire; (7.5-15)(7.50x15-12ply)1
08***50Ring-Side1
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241-8669 Wheel & Tire Gp -9 Wheel,12 Ply
07***02Bolt-Wheel30
12***56Wheel & Tire Group; -Rear4
24***69Wheel & Tire Group; -9 Wheel,12 Ply1
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121-6756 Wheel & Tire Gp -Rear
08***37Tire; (7.5-15)(7.50x15-12ply)1
08***50Ring-Side1
12***22Wheel As1
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245-7461 Wheel Ar -9-Wheel, 12-Ply
24***69Wheel & Tire Group; -9 Wheel,12 Ply1
24***40Lines Group-Hydraulic; -Steering Pump1
24***61Wheel Ar; -9-Wheel, 12-Ply1
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Service Equipment And Supplies
352-4632 Film Gp
23***40Film; (Warning) (Product Link, Ansi) (On Lh Front Post Inside Cab)1
30***47Film-Information; (Product Link, Read Omm)1
35***32Film Group1
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352-4631 Plate & Film Gp
10***22Film-Instruction; (Hydraulic Oil Level)1
12***99Stencil-Instruction; (Diesel Or Jp-8 Fuel Only)(Fuel)1
13***58Film; (Identification) (On Radiator Filler Cap) (On Near Of Radiator Filler Cap)1
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Steering System
203-2285 Bar Gp-Oscillating & Steering
07***05Shim; (3.5-mm Thk)(3.5mm Thk)6
07***01Gasket1
09***94Pin-Spring2
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120-7057 Control Gp-Steering
00***21Nut; (13/16-20-Thd)1
07***43Steering Column Group1
12***57Control Group-Steering1
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120-7076 Cylinder & Mtg Gp-Steering
03***69Bearing1
07***40Spacer; (1-mm Thk)4
07***08Bushing-Terminal; (16 Ga.)4
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120-7060 Lines Gp-Steering
10***05Plate11
10***06Plate As2
12***60Lines Group-Steering1
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120-7075 Pump & Mtg Gp-Steering
12***75Pump & Mtg Group-Steering1
12***58Pump Group-Gear; -Steering1
14***36Adapter; (Straight) (-6 Orb X -6 Orfs)1
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133-4896 Pump Gp-Metering -Steering
05***50Seal3
07***23Seal1
07***45Bearing Kit (Consists Of Parts Marked K)1
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Water System
127-2828 Bar Gp-Spray -9-Wheel
12***28Bar Group-Spray; -9-Wheel1
12***78Tube As1
13***20Tube As1
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127-2827 Lines Gp-Water Spray
00***53Elbow-Pipe; (1/2-14 Nptf Thd)1
12***27Lines Group-Water Spray1
13***11Cable-Control1
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120-7062 Spray Gp-Water -9-Wheel
12***62Spray Group-Water; -9-Wheel1
12***27Lines Group-Water Spray1
12***28Bar Group-Spray; -9-Wheel1
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124-8285 Tank & Mtg Gp-Water
12***85Tank & Mtg Group-Water1
12***61Fitting1
18***83Tank Group-Water1
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185-1883 Tank Gp-Water
12***63Fitting1
15***22Tube; (21.5-cm)0
18***83Elbow2
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PS-150C serial number reference

On the PS-150C the PIN plate is a metal tag riveted to the main frame, usually near the operator's platform or on the front chassis rail close to the engine compartment. The prefix is the first three letters of the PIN, not the model code, and the digits that follow are the machine's sequential number within that block. Match the letter prefix, not just the trailing digits, to the correct parts and service literature.

PrefixIdentifies
FPSPS-150C pneumatic (rubber-tire) paving compactor, US-market build
NPKPS-150C pneumatic paving compactor

Frequently asked questions

What engine does the Caterpillar PS-150C use?

A turbocharged Cat 3054C 4-cylinder diesel rated at roughly 75 kW (100 hp) gross power. The prior PS-150B used a naturally aspirated 3054 rated lower, around 70 hp — don't cross-apply parts or tuning data between the two.

What is the operating weight of the Caterpillar PS-150C?

Standard operating weight is roughly 4,885 kg (10,770 lb). Ballasted weight reaches about 12,940 kg (28,530 lb) on the base configuration, and up to roughly 17,100-17,300 kg (about 38,000 lb) with the HW heavy-weight package — actual figures vary by ballast and tire configuration, so confirm against your specific unit's plate.

What replaced the Caterpillar PS-150C?

No confirmed direct successor model is documented. The PS-150C itself replaced the earlier PS-150B and PS-200B pneumatic rollers by combining their duty ranges into one platform. Caterpillar's current pneumatic-roller lineup covers similar compaction classes today — check with a Cat dealer for the current model that lines up with your PS-150C's weight class.

What PS-150C owners discuss

What engine is under the hood of the PS-150C, and does it have a reputation for hard starting?
The PS-150C runs a Cat 3054C, a turbocharged four-cylinder rated at roughly 75 kW (100 hp) gross, with mechanically controlled direct injection rather than the electronic engine management used on later ACERT-era Cat engines. That mechanical fuel system means fewer sensor-driven shutdowns, but engines in the 3054 family are known for hard, extended-cranking starts in cold weather when the glow plug circuit is weak. Worn glow plugs, a tired starting relay, or corroded ground wiring are the usual culprits, not the injection pump itself. Chase the glow plug circuit and cranking amperage before assuming a fuel system fault. Have your dealer verify the glow-plug circuit if cold starts stay unreliable.
The roller has 9 wheels that visibly wobble as it moves — is that normal?
Yes. Pneumatic rollers oscillate the front and rear wheel bolsters (about ±4.4 degrees on the PS-150C's standard 9-wheel layout) so each tire can follow ground contour independently instead of bridging low spots the way a rigid axle would. That movement is the design working as intended, not a sign of worn pins. Over years of service the oscillation pivots and bolster bushings are the wear points to watch — play there shows up first as uneven tire tracking, well before it shows up as a leak or a broken part.
What tire problems come up most often on these pneumatic rollers?
Two recurring themes: pressure imbalance and sun-checking. Compactive effort on this design comes from tire contact pressure rather than vibration, so even a small difference between tires produces a wavy, inconsistently compacted mat and uneven tread wear. Daily pressure checks across every tire, matched to the ballast load, are treated as non-negotiable maintenance rather than a nice-to-have. Separately, rollers left sitting outdoors between paving seasons develop sidewall cracking from UV and ozone exposure. A machine with low hours but tires that sat uncovered in the yard for a season or two is a common source of a surprise tire bill on inspection.
Any known electrical gripes on this machine?
Because the PS-150C predates full electronic engine control, its electrical system is comparatively simple: battery, starting and charging circuit, glow plug relay, gauges, and basic safety interlocks rather than a networked control module with fault codes. The complaints that surface are correspondingly basic — blown fuses tied to the glow plug circuit, corroded battery or ground connections causing hard starts that mimic a fuel problem, and worn gauge sending units giving false temperature or pressure readings. Start with connections and fuses before assuming a major component failure.
How does the ballast system work, and what tends to go wrong with it?
Ballast is added to increase tire ground pressure for heavier compaction work. Configuration matters here: sources describe added ballast packages on the order of several thousand kilograms/pounds, with total operating weight varying by tire size and ballast option, so treat exact ballast figures as configuration-dependent rather than a single fixed number. In the field the recurring issue isn't the ballast material itself but tanks and compartments that corrode or start leaking after years of exposure, and ballast being changed without a matching tire pressure adjustment — the two have to be set together, or the ballast just distorts the tire contact patch instead of improving compaction.
Steering and drive — anything owners flag on this roller?
The PS-150C uses hydraulically assisted, low-effort steering on the front wheel bolster with a tight turning radius for a machine this size, useful on confined patch and driveway work. Typical wear reports center on steering cylinder seals and hose connections weeping over time rather than outright pump failure. A spongy or delayed steering response is more often a cylinder or linkage pin issue than a hydraulic pump problem. Have your dealer verify hydraulic pressure at the steering circuit before replacing major components.
What should I check when shopping for a used PS-150C?
Beyond the usual fluid and hour-meter review: inspect every tire for sidewall checking and cracking, since age and storage history matter as much as tread depth. Confirm the ballast tanks or compartments aren't corroded or leaking, and confirm the ballast/tire package actually installed matches what the listing claims — base and heavy-weight tire and ballast options change the maximum operating weight substantially, so two PS-150C listings can carry very different compaction capability. Work the wheel bolsters by hand for oscillation play, and cycle the steering to feel for delayed or spongy response from worn cylinders or hoses. Start the engine cold if at all possible; a 3054C that struggles to fire on a cool morning is telling you something about the glow plug circuit before you own the problem. Have your dealer verify tire condition and ballast configuration against the compaction spec the job actually needs.

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

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