Caterpillar PM-102
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar PM102 is a compact, self-propelled cold planer (asphalt and concrete milling machine) built for a 1000 mm (40 in) cutting width and up to 305 mm (12 in) of milling depth. It runs a 7.2 L inline-six from Cat's 3126B/C7 family throughout its production run: earliest units used the Cat 3126B ATAAC, later production switched to the Cat C7 with ACERT technology once US EPA Tier 3 / EU Stage IIIA emissions rules applied, both rated near 168 kW (225 hp) gross. Operating weight runs roughly 17,100-17,600 kg (37,700-38,800 lb) depending on configuration and tank fill. Caterpillar offered the PM102 in two factory undercarriage configurations, track or wheel, each with its own weight, width, and travel speed rather than a field-convertible chassis. Available records point to a single serial-prefix production run (Z2X) covering roughly the mid-to-late 2000s into the early-to-mid 2010s; no separate PM102 chassis generation is documented beyond the engine change, and no confirmed one-for-one successor model has surfaced in dealer or parts literature.
Because the PM102's engine change carried over the same rating and chassis, parts and service commonality stays strong across its production run - the main variables buyers need to track are which engine a given unit has (confirm off the PIN plate) and track versus wheel undercarriage, since propel components, tires, and running gear are not interchangeable between the two undercarriage types. In the used market, the PM102 still fills a niche below Cat's larger half-lane planers: municipal crews, utility contractors, and small paving outfits use it for driveway, patch, and tight-access milling where a full-size machine is oversized. Its HEUI-fueled engine family is well-understood in the field, which keeps diagnostic support and rebuild parts accessible even as the model ages out of Cat's current lineup. Resale values on used units track hours, undercarriage condition, and rotor tool-holder wear closely, since those are the components that see the heaviest cycle life on a milling machine this size.
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 PM-102 specifications
Engine
| Engine model | Cat C7 Engine with ACERT Technology (7.2 L / 439 cu in, inline-6) on later production; earliest production used the Cat 3126B ATAAC engine in the same family before Tier 3 / Stage IIIA emissions rules applied. Same base engine platform across both designations — varies by build date, confirm off the PIN plate. |
| Rated (gross) power | 168 kW (225 hp) on the C7 ACERT rating. A 228 hp gross figure is also cited for the earlier 3126B-family rating — varies by build date; use 225 hp (168 kW) as the primary current factory figure. |
| Net power | Approximately 158 kW (212 hp) at 2200 rpm on the 3126B-family rating; not shown on the current factory spec sheet — treat as approximate. |
| Displacement | 7.2 L (439 cu in) |
| Cylinders | 6, inline |
| Emissions tier | US EPA Tier 3 and EU Stage IIIA compliant |
Weights
| Operating weight, track undercarriage | 17,600 kg (38,810 lb) — includes coolant, lubricants, full fuel tank, full water tank, and 75 kg (165 lb) operator |
| Operating weight, wheel undercarriage | 17,100 kg (37,705 lb) — same basis as above |
| Shipping weight, track undercarriage | 17,100 kg (37,705 lb) — includes coolant, lubricants, 50% fuel level, empty water tank |
| Shipping weight, wheel undercarriage | 16,400 kg (36,160 lb) — same basis as above |
| Ground pressure | Not published in available spec sheets |
Dimensions
| Operating length | 10.7 m (35'1") with conveyor up |
| Shipping length (conveyor folded) | 8.5 m (27'8") |
| Maximum width, track | 2.5 m (8'2") |
| Maximum width, wheel | 2.4 m (7'9") |
| Machine width, right rear leg tucked (track) | 1.98 m (6'5") |
| Machine width, right rear leg tucked (wheel) | 2.0 m (6'6") |
| Maximum height (with canopy) | 3.4 m (11'2") |
| Shipping height (canopy folded) | 3.1 m (10'1") |
| Cutting (rotor) width | 1000 mm (40") |
| Maximum cutting depth | 305 mm (12") |
| Conveyor swing | 41 degrees left or right of center |
Performance
| Travel speed, track undercarriage | 4.1 km/h (2.5 mph), 0 to max infinitely variable |
| Travel speed, wheel undercarriage | 6.4 km/h (3.9 mph), 0 to max infinitely variable |
| Operating (milling) speed, track | 27 m/min (89 ft/min) |
| Operating (milling) speed, wheel | 46 m/min (151 ft/min) |
| Inside turning radius | 3.45 m (11'3") for both track and wheel configurations |
| Gradeability | Not published |
Service capacities (summary)
| Fuel tank | 400 L (105 gal) |
| Water spray system | 1,060 L (280 gal) |
| Hydraulic system | Approximately 110 L (29 gal); not listed on the factory spec sheet — verify with your dealer |
| Engine oil | Approximately 31 L (8.2 gal); not listed on the factory spec sheet — verify with your dealer |
| Cooling system | Approximately 35 L (9.3 gal); not listed on the factory spec sheet — verify with your dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
PM-102 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase, with filter (Cat C7 with ACERT on later production, Cat 3126B ATAAC on earlier production — same 7.2 L inline-6 HEUI platform) | approx. 31 L (8.2 US gal) | Cat DEO (Diesel Engine Oil), multigrade. Cat's cold-planer engine oil viscosity is picked by ambient temperature at start-up: a lighter grade such as SAE 10W-30 for cold-weather starts, stepping up to 15W-40 for general/warm-climate operation. Follow the OMM's viscosity-vs-temperature chart for the exact cutover points. |
| Cooling system | approx. 35 L (9.3 US gal) | Cat ELC (Extended Life Coolant), factory premix. Low-silicate/phosphate-free formulation; no supplemental coolant additive needed until the extender interval. |
| Fuel tank | 400 L (105 US gal) | Ultra-low-sulfur No. 2-D diesel fuel meeting Cat fuel specification; use winter-blend fuel or an anti-gel additive in cold climates. |
| Hydraulic system (tank and circuit; also feeds the hydrostatic track/wheel drive) | approx. 110 L (29.1 US gal) | Cat HYDO Advanced (multi-viscosity hydraulic oil). Grade selected by ambient operating temperature per the OMM's viscosity chart; a lighter grade is used for cold starts and a heavier grade for sustained high-temperature operation. |
| Water spray system (cutting-water tank, not a lubricant) | 1060 L (280 US gal) | Clean water, filtered to protect the spray nozzles; no antifreeze/lubricant additive specified. Drain and winterize in freezing conditions. |
| Final drives (track or wheel undercarriage), if separately serviced | not documented in accessible sources for this exact machine — verify with your dealer or the OMM refill chart | Where a final drive compartment is separate from the main hydraulic tank, Cat's standard recommendation is Cat TDTO (Transmission/Drive Train Oil), graded by climate the same way as the hydraulic system. |
| Grease (chassis, conveyor, and rotor drive-line points) — spec only, no total-system volume published | n/a (per-point service, not a fill capacity) | Cat Advanced 3Moly Grease (NLGI 2) or Cat Ultra Extreme Grease for high-load/high-vibration points such as the rotor drive; general-purpose Cat grease elsewhere. No separate cold-weather grade is called out for this class of machine. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar PM-102 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 6,000 h |
|
Servicing the PM-102 beyond the schedule
Predictive maintenance & fluid analysis
Run S·O·S oil sampling on the engine (C7 ACERT or 3126B ATAAC, depending on build date) at every service interval - HEUI injection draws off engine oil pressure, so early wear or contamination shows up in oil analysis before it shows up as a power complaint. Sample hydraulic oil on the same schedule since the tank feeds both the propel drive and the flush-cut leg/side-plate cylinders. Watch boost pressure and throttle position sensor trends on the diagnostic display; a slow drift often means a corroded connector or a leaking intake joint, not a failed sensor.
Corrective & common repairs
Expect HEUI pump and injector issues to get corrected as a set, not piece by piece - a healthy injector set can mask a marginal pump and cause a comeback. Boost and throttle position sensor faults usually trace back to connectors or intake leaks rather than the sensor itself. On track machines, clean packed debris from rollers and sprockets to slow undercarriage wear; on wheel machines, watch the flush-cut right-rear wheel and support for extra wear. Hydraulic leg and side-plate cylinders leak at the rod once dirt gets past a pitted seal.
Overhaul & rebuild points
Rotor tool holders and the drum housing take the heaviest cumulative wear - outer holders wear faster than inner ones, and concrete milling accelerates pick and holder wear compared to asphalt. At major overhaul, inspect the automatic hydraulic drive belt tensioner and belt for full replacement rather than partial adjustment. Rebuild hydraulic leg and side-plate cylinders once rod pitting shows up, since a reseal alone will not stop the leak. Undercarriage rebuild timing differs by configuration - plan track chain/roller work and wheel hub/support work on separate schedules.
Seasonal & environment servicing
Cold starts run the engine in a richer, lower-power fuel map until it warms up - keep the fuel/water separator drained and use winter-blend diesel ahead of freezing weather. Drain and winterize the water spray tank and spray bars before shutdown in freezing climates to avoid cracked lines. In dry, dusty milling conditions, blow out and clean the rotor housing and tool holders between passes and shorten the water-nozzle cleaning interval, since fine debris accelerates seal and holder wear on both track and wheel machines.
PM-102 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 1R-0762 | Filter As-Fuel | Fuel system service | Check fitment → |
| 2P-2537 | Stud Engine Oil Filter | Lubrication service | Check fitment → |
| 1R-1807 | Filter As-Engine Oil | Lubrication service | Check fitment → |
| 161-1705 | Sensor As-Pressure | Lubrication service | Check fitment → |
| 9S-8752 | Nut-Full | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
PM-102 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| 100-17 | Engine oil pressure below normal operating threshold for current engine speed (warning level; escalates to a derate/shutdown code at lower pressure). | Low oil level, degraded oil viscosity, worn oil pump, plugged filter, or a failed oil pressure sensor/wiring fault. | Check oil level and condition first. If level and quality are correct, verify the sensor reading against a mechanical test gauge before returning the machine to service. |
| 110-15 | Engine coolant temperature above normal operating range (warning level; a higher-severity FMI shuts the engine down). | Low coolant level, blocked radiator core or debris screen, slipping or failed fan drive, or a faulty coolant temperature sensor. | Shut down and let the engine cool. Check coolant level and radiator/screen for debris, then confirm fan operation before restarting. |
| 164-11 | Injection actuation (injector hydraulic) pressure system fault on the HEUI fuel system. | Leaking injector O-rings, a faulty injection actuation pressure control valve, a weak high-pressure oil pump, or a failed actuation pressure sensor. | Connect diagnostic software and run an injector actuation pressure test; if pressure is unstable, inspect the actuation pressure sensor and its harness before condemning the pump. |
| 168-01 | Electrical system (battery) voltage below normal. | Weak or failing battery, poor battery/ground connections, or low alternator output. | Load-test the batteries and inspect connections and ground straps; check charging output at the alternator with the engine running. |
| 190-08 | Engine speed signal abnormal or erratic. | A faulty engine speed/timing sensor, damaged wiring or connector, or debris affecting the sensor air gap. | Inspect the speed sensor wiring and connector for damage or corrosion, and check the sensor air gap before replacing the sensor. |
| 757-xx | Rotor clutch oil pressure sensor circuit fault (exact failure-mode suffix varies by condition - open circuit, out-of-range signal, or erratic reading). | Damaged sensor wiring/connector, a failed pressure sensor, or low rotor clutch oil pressure feeding the circuit. | Inspect the sensor connector and harness for damage, then verify actual clutch oil pressure with a test gauge before replacing the sensor. |
| 944-xx | Conveyor speed switch circuit fault (exact failure-mode suffix varies - open, shorted, or out-of-range signal). | Damaged switch wiring, a failed conveyor speed switch, or a loose connector at the conveyor drive. | Inspect the switch and its wiring for damage or contamination from milled material, then confirm switch operation before replacing it. |
| 751-xx | Water spray system switch/circuit fault (exact failure-mode suffix varies - open, shorted, or signal out of range). | Clogged or damaged spray switch wiring, a failed relay, or a pump/valve issue in the dust-suppression water system. | Check the water spray switch and relay wiring, confirm pump and nozzle operation, then clear the code and retest. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
PM-102 attachments & work tools
Machine type, not a carrier attachment
The PM102 is a self-propelled, purpose-built cold planer on its own track or wheel undercarriage. It is not a work tool mounted to a skid steer, compact track loader, or excavator, unlike Cat's smaller PC-prefixed cold planer attachments. Everything below is a factory option or integral system on the machine itself, not a third-party implement.
Rotor and cutting tool package
Standard-class rotor cuts to roughly 1000 mm (40 in) width and up to about 305 mm (12 in) maximum depth for this size class. Carbide-tipped cutting tools are arranged in a triple-wrap flighting pattern on the drum for balanced breakout force; exact tool spacing and bit population vary by configuration and dealer parts listing, so confirm the current rotor build with your dealer.
Tool holder / mounting system
Cutting tools mount in a patented three-piece, quick-release conical tool holder base. The tapered fit keeps the holder tight in the drum while allowing fast tool changes without welding, which is the standard mounting system across this cold planer class rather than an optional add-on.
Flush-cut side plate arrangement
The right rear leg and side plate swing in hydraulically from the operator's station, letting the machine cut close to curbs, walls, or guardrails. This flush-cut capability is a built-in machine feature, not a bolt-on attachment, and is standard on the PM102.
Grade and slope control system
An optional automatic grade and slope package is offered, using a wire-rope sensor along the side plate as an averaging grade reference plus an optional cross-slope sensor. Dual control boxes at the operator's station allow manual or automatic depth and slope adjustment. This is a factory- or dealer-installed electronic option, not a hydraulic work tool.
Conveyor configuration
A front-loading collecting conveyor feeds a discharge conveyor that swings for material placement into a truck or windrow. The conveyor folds hydraulically to reduce transport width; swing range and folding are standard machine functions rather than separate attachments.
Water spray and washdown system
An onboard water tank of roughly 1000 to 1060 liters (about 280 gallons) supplies spray bars that cool the rotor and control dust during milling. Optional upgrades include a high-pressure washdown system for cleanup and a high-capacity tank refill pump; both use the machine's own water and hydraulic circuits.
Operator protection and visibility options
A hydraulically operated folding canopy is offered as an optional weather/sun protection structure over the operator's station. Optional roading light packages (travel and work lighting, hazard beacon) and rear-view camera kits are also available for road transport and site visibility.
Undercarriage and ballast configuration
The PM102 is factory-configured with either a track or wheel undercarriage rather than field-convertible between the two. Wheel-undercarriage machines can be specified with ballast kits to add traction weight; this is a build-time configuration choice, not a swappable field attachment.
All PM-102 assemblies by section
Every catalogued assembly group for the Caterpillar PM-102. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
294-7675 Cover Gp-Air Inlet -Starting Aid Heater
| 13***02 | Clamp As; (Turbine)(Turbine) | 1 |
| 15***72 | Clamp As; (Compressor) | 1 |
| 16***63 | Clamp | 2 |
189-8780 Cover Gp-Air Inlet -Starting Aid Heater
| 18***80 | Cover Group-Air Inlet; -Starting Aid Heater | 1 |
| 21***64 | Manifold-Exhaust; (End) | 2 |
| 21***55 | Manifold-Exhaust; (Center) | 1 |
288-0973 Cover Gp-Air Inlet -Starting Aid Heater
| 28***73 | Cover Group-Air Inlet; -Starting Aid Heater | 1 |
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 1 |
| 9S***05 | Plug-O-Ring; (Straight Thread O-Ring) | 1 |
219-7482 Elbow Gp-Air Inlet
| 21***82 | Elbow Group-Air Inlet | 1 |
| 25***99 | Turbocharger Group | 1 |
| 3E***17 | Locknut; (M10x1.5-Thd)(Spiralock) | 4 |
211-7869 Fastener Gp-Inlet Man Cover
| 10***07 | Seal-O-Ring; (Fuel System) | 1 |
| 14***03 | Seal-O-Ring; (Fuel System) | 1 |
| 14***40 | Ring-Backup; (37.36mm Od), Flasher Switch; Hazard, Replaces 421164a1, Flasher Switch | 1 |
219-5840 Manifold Gp-Exhaust
| 10***07 | Seal-O-Ring; (Fuel System) | 1 |
| 14***03 | Seal-O-Ring; (Fuel System) | 2 |
| 14***40 | Ring-Backup; (37.36mm Od), Flasher Switch; Hazard, Replaces 421164a1, Flasher Switch | 1 |
151-0864 Plug Gp-Air Inlet Manifold
| 10***06 | Receptacle Kit; (Includes Wedge And Receptacle Assem.) | 1 |
| 11***15 | Hose As | 1 |
| 15***64 | Plug Group-Air Inlet Manifold | 1 |
250-7699 Turbocharger Gp
| 18***99 | Connector As | 2 |
| 19***23 | Adapter Group-Oil Line; -Fuel Injection Pump-Unit Injector Hydraulic Pump | 1 |
| 20***80 | Hose As | 1 |
281-4202 Turbocharger Gp
| 21***68 | Seal-O-Ring; (11.89-mm Id) | 2 |
| 22***04 | Seal-O-Ring; (Unit Injector Hydraulic Pump) | 1 |
| 25***67 | Pump Group-Unit Injector Hydraulic | 1 |
Basic Engine
212-4289 Camshaft Gp
| 21***89 | Camshaft Group | 1 |
| 23***83 | Gasket | 1 |
| 24***76 | Seal | 1 |
4w-3462 Carrier Gp-Seal
| 11***18 | Bolt As; (M8x1.25x16-mm) | 3 |
| 17***67 | Spacer; (8.8x16x10-mm Thk)(Marked X) | 8 |
| 1U***46 | Sealant (For Locations A) | 0 |
222-5947 Cover Gp-Cylinder Block
| 11***18 | Bolt As; (M8x1.25x16-mm) | 3 |
| 1U***46 | Sealant (For Locations A) | 0 |
| 21***21 | Stud; (M8x1.25-Thd) | 1 |
118-1727 Cover Gp-Front Housing
| 06***55 | Seal-O-Ring (Id=47.22mm) | 1 |
| 11***27 | Cover Group-Front Housing; -Accessory Drive | 1 |
| 5C***61 | Nut (M8x1.25 Thd); (M8x1.25 Thd) | 2 |
172-8732 Cover Gp-Front Housing
| 12***57 | Washer; (10.85x19.3x1.27-mm Thk) | 2 |
| 13***22 | Stud | 2 |
| 16***76 | Cover As-Front | 1 |
211-9120 Cover Gp-Front Housing
| 09***49 | Bolt; (M8x1.25x40-mm) | 13 |
| 21***20 | Cover Group-Front Housing | 1 |
| 21***01 | Seal-Bulk; (23-Dm)(Valve Mechanism Cover) | 0 |
261-3723 Cover Gp-Valve Mechanism -Front Fill
| 10***08 | Bearing-Main; (Standard) | 6 |
| 14***62 | Bearing; (0.25mm Undersize) | 0 |
| 14***64 | Bearing; (0.5mm Undersize) | 0 |
210-5590 Crankshaft Gp
| 1W***07 | Sleeve | 2 |
| 21***90 | Crankshaft Group | 1 |
| 30***41 | Cylinder Block Group | 1 |
305-8141 Cylinder Block Gp
| 14***18 | Insert-Valve Seat; (Exhaust, Standard) | 6 |
| 18***82 | Insert-Valve Seat; (0.127-mm Os Od, Exhaust) | 0 |
| 18***83 | Insert-Valve Seat; (0.254-mm Os Od, Exhaust) | 0 |
263-3774 Cylinder Block Gp
| 21***86 | Bearing-Sleeve; (Camshaft) | 1 |
| 26***74 | Cylinder Block Group | 2 |
| 2M***71 | Plug-Cup; (38.35mm Avg Od) | 2 |
221-4482 Cylinder Block Gp
| 22***82 | Cylinder Block Group | 1 |
| 5P***47 | Washer (Bracket To Valve Support) | 14 |
| 7E***68 | Cap-Crankshaft Bearing | 7 |
219-5845 Cylinder Head As
| 21***45 | Cylinder Head As | 1 |
| 22***00 | Sleeve-Injector | 6 |
| 23***85 | Insert-Valve Seat; (Standard)(Exhaust) | 6 |
314-4184 Cylinder Head As
| 13***83 | Retainer-Spring | 6 |
| 13***15 | Seat-Valve Spring | 6 |
| 13***18 | Spring-Valve; (Exhaust) | 6 |
219-5844 Cylinder Head As
| 13***15 | Seat-Valve Spring | 6 |
| 14***70 | Guide-Valve; (Standard, Inlet) | 12 |
| 14***14 | Seal-Valve Stem; (Inlet) | 12 |
219-5849 Cylinder Head Gp
| 13***83 | Retainer-Spring | 6 |
| 13***15 | Seat-Valve Spring | 6 |
| 13***18 | Spring-Valve; (Exhaust) | 6 |
219-5847 Cylinder Head Gp
| 1N***99 | Plug-O-Ring; (Straight Thread) | 2 |
| 21***47 | Cylinder Head Group | 1 |
| 2M***80 | Seal--To Connector Pump Outlet | 1 |
219-5846 Cylinder Head Gp
| 1N***99 | Plug-O-Ring; (Straight Thread) | 2 |
| 21***46 | Cylinder Head Group | 2 |
| 2M***80 | Seal--To Connector Pump Outlet | 1 |
300-9550 Cylinder Head Gp
| 10***50 | Pulley; (3 Groove) | 1 |
| 16***21 | Damper Assem. | 1 |
| 30***50 | Cylinder Head Group | 1 |
132-1976 Damper & Pulley Gp
| 11***19 | Plug-Magnetic; (Engine Oil Pan Drain) | 2 |
| 13***76 | Damper & Pulley Group | 1 |
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 2 |
198-6475 Drain Gp-Engine Oil
| 10***17 | Gear; (50-Teeth) | 1 |
| 10***18 | Bearing | 1 |
| 10***21 | Adapter | 1 |
237-9231 Drive Gp-Accessory
| 03***75 | V-Belt; (Pump Drive)(Water) | 1 |
| 10***67 | Plate As-Idler | 1 |
| 11***04 | Pulley As-Idler | 1 |
120-6657 Drive Gp-Water Pump
| 12***57 | Drive Group-Water Pump | 1 |
| 22***44 | Clip | 3 |
| 24***00 | Spring | 11 |
258-8723 Fastener Gp-Cylinder Head
| 22***21 | Spacer; (101.5x167x8-mm Thk) | 1 |
| 25***23 | Fastener Group-Cylinder Head; -Valve Cover Base | 1 |
| 6V***39 | Washer-Hard-Alt Strap To Fan Drive Belt | 8 |
240-0434 Fastener Gp-Damper & Pulley
| 24***34 | Fastener Group-Damper & Pulley | 1 |
| 6V***17 | Bolt; (M8x1.25x30-mm)(Location Z) | 12 |
| 8T***00 | Bolt (M8x1.25x60mm); (M8x1.25x60-mm) | 2 |
211-9118 Fastener Gp-Front Cover
| 21***18 | Fastener Group-Front Cover | 1 |
| 8T***21 | Washer-Hard; (11x21x2.5-mm Thk)(M10x1.50x30mm) | 3 |
| 8T***36 | Capscrew; (Hex Hd) (M10 X 1.50 X 25l Gr 10.9) | 3 |
117-3477 Fastener Gp-Lifting -Engine, Front
| 11***77 | Fastener Group-Lifting; -Engine, Front | 1 |
| 1W***64 | Gear-Flywheel Ring; (126-Teeth) | 1 |
| 20***82 | Flywheel As | 1 |
113-6170 Fastener Gp-Lifting -Rear Engine
| 11***70 | Fastener Group-Lifting; -Engine, Rear | 1 |
| 6V***48 | Bolt (M10) (Rear Pump To Center Pump) | 4 |
| 6V***39 | Washer-Hard-Alt Strap To Fan Drive Belt | 4 |
273-2716 Flywheel Gp
| 11***69 | Plate-Thrust | 1 |
| 11***72 | Bearing | 1 |
| 11***19 | Plate-Retaining | 1 |
205-1321 Gear Gp-Front
| 20***21 | Gear Group-Front, Name-Plate (Norwegian) | 1 |
| 6V***42 | Bolt (M10x1.50x40mm) | 2 |
| 7C***33 | Housing-Flywheel | 1 |
132-2106 Housing Gp-Flywheel
| 13***06 | Housing Group-Flywheel | 1 |
| 1U***46 | Sealant (For Locations A) | 0 |
| 24***59 | Housing-Front | 1 |
245-3260 Housing Gp-Front
| 13***84 | Spacer; (15.9x24x6-mm Thk) | 2 |
| 13***76 | Shaft As-Lifter | 1 |
| 24***60 | Housing Group-Front | 1 |
139-4081 Lifter Gp-Valve -Mechanism
| 13***81 | Lifter Group-Valve; -Mechanism | 1 |
| 15***96 | Plate-Lifting; (Rear) | 1 |
| 22***66 | Plate-Lifting; (Front) | 1 |
142-8100 Lifting Gp-Engine
| 14***00 | Lifting Group-Engine; (Engine) | 1 |
| 16***05 | Seal-Integral | 1 |
| 22***21 | Pan-Oil; (Engine) | 1 |
126-5931 Pan Gp-Oil -Engine
| 12***31 | Pan Group-Oil; -Engine | 1 |
| 19***53 | Ring-Piston; (Intermediate) | 1 |
| 19***71 | Pin-Piston | 1 |
212-3652 Piston & Rod Gp
| 21***52 | Piston & Rod Group | 1 |
| 3D***24 | O-Ring - For Oil Drain & Level Plug (Items 3 & 7) | 2 |
| 6F***62 | Washer,Flat Transmission Oil Cooler | 1 |
159-0303 Plug Gp-Cylinder Block
| 14***95 | Plug As | 1 |
| 15***03 | Plug Group-Cylinder Block; (Cylinder Block) | 1 |
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 1 |
162-8068 Plug Gp-Engine -Engine Oil
| 16***68 | Plug Group-Engine; -Oil Gallery | 1 |
| 2P***94 | Plug-Sealing | 1 |
121-0802 Plug Gp-Flywheel Housing
| 12***02 | Plug Group-Flywheel Housing | 1 |
| 2W***81 | Plate-Clamp; (Pulley Clamp) | 1 |
| 7W***73 | Pulley-Crankshaft; (1-Groove) | 1 |
122-8931 Pulley Gp-Crankshaft
| 12***31 | Pulley Group-Crankshaft | 1 |
| 24***39 | Seal-Crankshaft; (Front)(Front) | 1 |
| 7C***71 | Seal Group-Crankshaft; (Rear)(Rear) | 1 |
256-3834 Rocker Arm Gp -Inlet
| 13***79 | Rod-Valve Push; (Valve Push) | 12 |
| 13***81 | Lifter Group-Valve; -Mechanism | 3 |
| 21***09 | Bridge-Valve | 6 |
256-3831 Rocker Arm Gp -Exhaust
| 25***31 | Rocker Arm Group; -Exhaust | 1 |
| 32***23 | Support-Engine | 1 |
| 8T***68 | Bolt (M12x1.75x80mm); (M12x1.75x80-mm) | 6 |
122-8929 Seal Gp-Crankshaft
| 12***29 | Seal Group-Crankshaft | 1 |
| 13***17 | Spring | 5 |
| 13***98 | Shaft Assem. | 1 |
7e-1717 Support Gp-Engine
| 03***27 | Seal-O-Ring; (19.18mm Id) | 1 |
| 19***22 | Adapter | 1 |
| 7E***17 | Support Group-Engine; Support Gp - Engine | 1 |
232-3717 Valve Mechanism Gp
| 21***66 | Seal-O-Ring; (Engine Oil) | 1 |
| 21***68 | Seal-O-Ring; (11.89-mm Id) | 1 |
| 23***17 | Valve Mechanism Group | 1 |
256-3830 Valve Mechanism Gp
| 1R***07 | Filter As-Engine Oil; (Advanced Efficiency) | 1 |
| 20***75 | Cap-Tube | 2 |
| 21***66 | Seal-O-Ring; (Engine Oil) | 1 |
235-5528 Valve Mechanism Gp
| 13***07 | Base Group-Oil Filter | 1 |
| 1R***07 | Filter As-Engine Oil; (Advanced Efficiency) | 1 |
| 20***75 | Cap-Tube | 2 |
Cooling System
117-3643 Cooler Gp-Engine Oil
| 11***43 | Cooler Group-Engine Oil | 1 |
| 1U***46 | Sealant (For Locations A) | 0 |
| 28***73 | Cover Group-Air Inlet; -Starting Aid Heater | 1 |
206-4228 Lines Gp-Water
| 1U***46 | Sealant (For Locations A) | 0 |
| 20***28 | Lines Group-Water; -Engine | 1 |
| 29***75 | Cover Group-Air Inlet; -Starting Aid Heater | 1 |
160-7075 Plug Gp-Water Lines
| 16***75 | Plug Group-Water Lines | 1 |
| 24***95 | Insulator; (Air Inlet Heater) | 1 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 2 |
117-3433 Pump Gp-Water -Coolant
| 11***33 | Pump Group-Water; -Coolant | 1 |
| 24***95 | Insulator; (Air Inlet Heater) | 1 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 2 |
120-8402 Pump Gp-Water -Coolant
| 12***02 | Pump Group-Water; -Coolant | 1 |
| 19***94 | Stud; (M8x1.25x80-mm)(M8x1.25x80-mm) | 4 |
| 1U***46 | Sealant (For Locations A) | 0 |
Electrical And Starting System
246-9345 Control & Mtg Gp-Engine Elek
| 16***03 | Sensor Group-Pressure; (Turbocharger Inlet, Rh) | 1 |
| 24***45 | Control & Mtg Group-Engine Elek | 1 |
| 6V***49 | Seal-O-Ring (Id=11.89mm); (11.89-mm Id) | 1 |
142-8333 Fastener Gp-Ground Stud
| 14***33 | Fastener Group-Ground Stud | 1 |
| 16***05 | Sensor As-Pressure; (Unfiltered Engine Oil) | 1 |
| 6V***48 | Seal--O-Ring--To Governor Drive Housing | 1 |
231-1977 Sensor Gp-Engine
| 16***04 | Sensor Group-Pressure; (Turbocharger Outlet) | 1 |
| 23***77 | Sensor Group-Engine | 1 |
| 6V***48 | Seal--O-Ring--To Governor Drive Housing | 1 |
296-7731 Sensor Gp-Engine
| 15***60 | Kit-Connecting Plug; (3-Pin)(Engine Sensor Wiring Harness) | 1 |
| 18***40 | Socket-Connector; (14-Ga To 18-Ga)(14-Ga To 18-Ga) | 3 |
| 29***31 | Sensor Group-Engine | 1 |
236-6220 Sensor Gp-Pressure
| 13***11 | Sensor Group-Temperature; (Transmission Lubrication Oil) | 1 |
| 23***20 | Sensor Group-Pressure; -Injection Actuation | 1 |
| 6V***09 | Seal-O-Ring (Id=16.36mm); (16.36-mm Id) | 1 |
210-1747 Sensor Gp-Pressure
| 13***11 | Sensor Group-Temperature; (Transmission Lubrication Oil) | 1 |
| 21***47 | Sensor Group-Pressure; -Air Inlet Manifold | 1 |
| 8L***86 | Seal-O-Ring (Id=16.36mm); (16.36-mm Id) | 1 |
197-8393 Sensor Gp-Pressure
| 19***93 | Sensor Group-Pressure; -Atmospheric | 1 |
| 21***67 | Seal-O-Ring | 1 |
| 22***36 | Sensor Group-Pressure; -Injection Actuation | 1 |
224-4536 Sensor Gp-Pressure
| 13***45 | Pad; (Connector) | 0 |
| 22***36 | Sensor Group-Pressure; -Injection Actuation | 1 |
| 26***97 | Sensor Group-Temperature; (Air Inlet Manifold) | 1 |
197-8394 Sensor Gp-Pressure
| 19***94 | Sensor Group-Pressure; -Engine Oil | 1 |
| 20***40 | Seal-O-Ring; (13.94mm Id) | 2 |
| 24***30 | Sensor Group-Speed; -Engine Timing | 1 |
236-6221 Sensor Gp-Speed -Engine Timing
| 13***45 | Pad; (Connector) | 1 |
| 23***21 | Sensor Group-Speed; -Engine Timing | 1 |
| 26***97 | Sensor Group-Temperature; (Air Inlet Manifold) | 1 |
197-8391 Sensor Gp-Temperature
| 03***23 | Bolt; (1/4-28x1-In) | 5 |
| 10***02 | Housing As | 1 |
| 19***91 | Sensor Group-Temperature; -Air Inlet Manifold | 1 |
197-8392 Sensor Gp-Temperature
| 03***23 | Bolt; (1/4-28x1-In) | 5 |
| 10***02 | Housing As | 1 |
| 19***70 | Solenoid As-Starting Motor; (24-Volt)(Starting Motor) | 1 |
207-1551 Starting Motor Gp-Electric
| 20***51 | Starting Motor Group-Electric; -Cold Weather | 1 |
| 20***77 | Bolt-Flange Head; (M8x1x25-mm) | 2 |
| 20***82 | Switch Group-Magnetic; -Starting Aid Heater Relay-Air Inlet Heater Relay | 1 |
207-1541 Starting Motor Gp-Electric
| 10***97 | Mount-Wire Tie | 7 |
| 19***13 | Harness Assembly; (Electronic Control Module) | 1 |
| 20***45 | Strap-Cable | 2 |
132-1418 Starting Motor Gp-Electric
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 13***18 | Starting Motor Group-Electric | 1 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 2 |
209-5582 Switch Gp-Magnetic -Air Inlet Heater Relay
| 20***82 | Switch Group-Magnetic; -Starting Aid Heater Relay-Air Inlet Heater Relay | 1 |
258-0883 Switch Gp-Pressure -Fuel Filter
| 25***83 | Switch Group-Pressure; -Fuel Filter, Differential-Fuel Filter | 1 |
198-2714 Wiring Gp-Engine
| 19***14 | Wiring Group-Engine | 1 |
262-0500 Wiring Gp-Heater -Air Inlet Heater
| 26***00 | Wiring Group-Heater; -Air Inlet Heater | 1 |
Engine Arrangement
352-6166 Engine Ar-Complete
| 11***43 | Cooler Group-Engine Oil | 1 |
| 19***61 | Lines Group-Injector Hydraulic Pump | 1 |
| 19***81 | Pump Group-Engine Oil | 1 |
237-9249 Engine Ar-Complete
| 11***70 | Fastener Group-Lifting; -Engine, Rear | 1 |
| 11***33 | Pump Group-Water; -Coolant | 1 |
| 11***77 | Fastener Group-Lifting; -Engine, Front | 1 |
260-6629 Engine Ar-Core
| 10***94 | Plate-Thrust | 1 |
| 1B***05 | Key; (Woodruff) | 1 |
| 21***88 | Camshaft As | 1 |
Fuel System
268-1835 Injector Gp-Fuel
| 21***68 | Seal-O-Ring; (11.89-mm Id) | 2 |
| 22***04 | Seal-O-Ring; (Unit Injector Hydraulic Pump) | 1 |
| 26***35 | Injector Group-Fuel | 1 |
328-2585 Injector Gp-Fuel
| 21***68 | Seal-O-Ring; (11.89-mm Id) | 2 |
| 22***04 | Seal-O-Ring; (Unit Injector Hydraulic Pump) | 1 |
| 30***07 | Pump Group-Unit Injector Hydraulic | 1 |
232-6135 Lines Gp-Fuel Filter
| 21***68 | Seal-O-Ring; (11.89-mm Id) | 2 |
| 22***04 | Seal-O-Ring; (Unit Injector Hydraulic Pump) | 1 |
| 23***35 | Lines Group-Fuel Filter | 1 |
191-0461 Lines Gp-Injector Hyd Pump
| 19***61 | Lines Group-Injector Hydraulic Pump | 1 |
| 23***51 | Bolt-Socket Head; (M8x1.25x65-mm) | 2 |
| 26***35 | Injector Group-Fuel | 1 |
254-0095 Pump & Mtg Gp-Unit Inj Hyd
| 10***28 | Spacer-Special; (12.7x26x28.7-mm Thk) | 4 |
| 14***92 | Stud; (M8x1.25-Thd) | 4 |
| 23***93 | Bolt-Flange Head; (M6x1x35-mm) | 2 |
268-1839 Pump Gp-Fuel Injection
| 16***61 | Plug As | 1 |
| 18***06 | Plug As; (High Temperature) | 1 |
| 18***63 | Plug Group | 1 |
232-0343 Regulator Gp-Fuel Pressure
| 16***61 | Plug As | 1 |
| 18***06 | Plug As; (High Temperature) | 1 |
| 18***63 | Plug Group | 1 |
Lubrication System
191-0523 Adapter Gp-Oil Line
| 16***48 | Stud; (M8x1.25x40-mm, M8x1.25x17.5-mm) | 1 |
| 19***23 | Adapter Group-Oil Line; -Fuel Injection Pump-Unit Injector Hydraulic Pump | 1 |
| 22***10 | Hose-Disposal; (Fumes Disposal) | 1 |
133-1807 Base Gp-Oil Filter
| 13***07 | Base Group-Oil Filter | 1 |
| 14***49 | Bracket | 1 |
| 14***50 | Tube As | 1 |
222-5946 Breather Gp
| 12***32 | Tube As-Oil | 1 |
| 22***46 | Breather Group; -Crankcase | 1 |
| 3E***53 | Washer-Hard; (11x25x3-mm Thk) | 2 |
189-5433 Filter Gp-Engine Oil
| 14***07 | Plug; (Hex Head) (-6 Orb) (Current) (16***35 Friction Disc Interchangeable With 11***47) (Use All Of One Part Number) | 3 |
| 18***33 | Filter Group-Engine Oil | 1 |
| 22***96 | Manifold-Oil; (Engine) | 1 |
133-1806 Filter Gp-Engine Oil
| 13***06 | Filter Group-Engine Oil | 1 |
| 14***78 | Elbow, 90°,-6 Orb /-6 Orfs; (90°) (-6 Orbx-6orfs) | 1 |
| 15***18 | Tube As-Oil Drain | 1 |
220-1194 Fumes Disposal Gp
| 22***94 | Fumes Disposal Group | 1 |
| 22***96 | Manifold-Oil; (Engine) | 1 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 4 |
227-9941 Gauge Gp-Oil Level (Dipstick) -Engine
| 20***97 | Pump Group-Engine Oil | 1 |
| 22***41 | Gauge Group-Oil Level (Dipstick); -Engine | 1 |
| 6V***15 | Bolt; (M10x1.5x75-mm) | 2 |
129-1133 Lines Gp-Engine Oil
| 12***33 | Lines Group-Engine Oil | 1 |
| 18***77 | Pump Group-Engine Oil | 1 |
| 7W***37 | Shaft-Oil Pump | 1 |
159-0285 Lines Gp-Turbocharger Oil
| 15***85 | Lines Group-Turbocharger Oil; (Turbocharger Oil) | 1 |
| 23***55 | Gasket | 1 |
| 26***43 | Core As-Engine Oil Cooler | 1 |
227-5926 Manifold Gp-Engine Oil
| 11***23 | Regulator-Water Temperature; (97-Deg C)(Coolant) | 2 |
| 12***66 | Gasket | 1 |
| 14***95 | Plug As | 1 |
237-8063 Manifold Gp-Engine Oil
| 23***63 | Manifold Group-Engine Oil | 1 |
| 3D***24 | O-Ring - For Oil Drain & Level Plug (Items 3 & 7) | 1 |
| 9S***08 | Plug-O-Ring; (Coolant Temperature Regulator) | 1 |
192-2981 Pump Gp-Engine Oil
| 12***02 | Pump Group-Water; -Coolant | 1 |
| 19***81 | Pump Group-Engine Oil | 1 |
| 2M***53 | Seal--To Seal Brake Housing To Main Housing | 1 |
200-4497 Pump Gp-Engine Oil
| 10***01 | Cover | 1 |
| 14***88 | Seal As; (Water Pump) | 1 |
| 15***52 | Impeller-Pump | 1 |
Machine Arrangement
271-1317 General Ar
| 23***49 | Engine Ar-Complete | 1 |
| 27***17 | General Ar | 1 |
Operator Station
351-5796 Module Gp-Display -Monochrome Monitor
| 35***96 | Module Group-Display; -Monochrome Monitor | 1 |
351-5794 Module Gp-Display -Color Monitor
| 35***94 | Module Group-Display; -Color Monitor | 1 |
PM-102 serial number reference
The PIN plate on a PM-102 cold planer is a riveted metal tag mounted on the machine frame near one of the support legs, in keeping with Cat's general practice of placing PIN plates low on the main frame rather than in the cab. The first three characters of the 17-character PIN are the serial prefix (model/series code); the last 5-8 characters are the sequential unit number. Match the full prefix against the parts or service manual cover before ordering parts, since separate manuals are split by prefix range.
| Prefix | Identifies | Notes |
|---|---|---|
| Z2X | PM-102 cold planer, base/only documented series | Covers PM-102 machines from the start of production, with parts and service literature published under the Z2X range beginning near Z2X00250. Engine fitment varies by build date: earliest production used the Cat 3126B ATAAC engine, with later production (once Tier 3 / Stage IIIA emissions rules applied) switching to the Cat C7 with ACERT. Both ratings list the same 168 kW (225 hp) gross power at 2200 rpm, and the machine's operating weight (about 17600 kg / 38810 lb), 1000 mm (40 in) rotor width, and 305 mm (12 in) max cutting depth stay the same across the change. Confirm the exact engine for a given unit off the PIN plate or with a dealer parts lookup. Both track and wheel undercarriage configurations of the PM-102 share this same Z2X prefix in the documentation found; no separate prefix is confirmed for the wheel variant specifically, so treat that split as unconfirmed - confirm undercarriage-specific prefix with dealer if it matters for parts lookup. |
Frequently asked questions
What engine does the Caterpillar PM102 cold planer use?
A 7.2 L, six-cylinder diesel from Cat's 3126B/C7 family using Caterpillar's HEUI fuel system. Later production used the Cat C7 with ACERT technology (US EPA Tier 3 / EU Stage IIIA); earlier production used the Cat 3126B ATAAC. Both are rated at approximately 168 kW (225 hp) gross - confirm the exact engine for a given unit off the PIN plate.
What is the operating weight of the Caterpillar PM102?
Around 17,600 kg (38,810 lb) with a full water tank on the track-undercarriage version, and about 17,100 kg (37,705 lb) on the wheel-undercarriage version. Exact weight varies by configuration, attached options, and how full the fuel and water tanks are at the time of weighing.
What replaced the Caterpillar PM102?
No single documented successor. The PM102 ran on one serial prefix (Z2X) with no confirmed second generation, and available dealer and parts literature does not name a direct one-for-one replacement model. It was Cat's compact, roughly 1000 mm (40 in) class planer of its era - check with a Cat dealer for the current compact-class equivalent.
What PM-102 owners discuss
What engine does the PM-102 use, and how has it held up in the field?
Are there known electrical or sensor issues on the PM-102's C7 ACERT engine?
What wears out first on the PM-102's undercarriage?
What maintenance issues come up most with the rotor and cutting tools?
What about the hydraulic legs and side plates?
How does the conveyor and water spray system behave?
What should I check before buying a used PM-102?
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
Need a specific PM-102 part?
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