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Caterpillar CX31-P600
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar CX31-P600 is a stand-alone power-shift transmission built for the well-service and petroleum market, not a complete machine. It pairs a lock-up torque converter with six forward and one reverse planetary-spur gear speeds, shifted automatically through Cat Electronic Clutch Pressure Control (ECPC) and a keypad shifter on a 24V electrical system. Gross input rating is 447 kW (600 hp) with 2746 N·m (2025 lb-ft) gross peak input torque at up to 2500 rpm input speed. It bolts to a customer-supplied C9, C11, C13, C15, or C18 ACERT engine through an SAE No. 1 dry flywheel housing, and factory options cover a standard side PTO, an optional integral or rear PTO, an integral pump drive, a retarder rated near 399 kW (535 hp), and an integral 2WD/4WD drop box for self-propelled units driving workover rigs, kill-mud pumps, cementing, acidizing, nitrogen, and coil-tubing pump packages.
The P600 sits within Caterpillar's CX31 power-shift platform as the petroleum-market variant, engineered for the continuous speed-matching and pump-load cycling of oilfield service work rather than for highway travel or excavation duty, a distinction that separates it from the machine-integrated CX31-C9I and CX31-C13I builds sharing the same base gearset. Because well-service power-train packages are commonly rebuilt, re-engined, or transferred between skids and trucks over a long service life, standalone CX31-P600 units and their control, PTO, and pump-drive components turn up regularly in the used oilfield equipment market, making transmission condition, ECPC fault history, and cooling-circuit health the key checkpoints for buyers evaluating a used well-service power-train package today.
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 CX31-P600 specifications
Transmission
| Type | Power-shift transmission with planetary spur gear sets; automatic-shift control. Bolts to a customer-supplied driver engine via an input coupling — supplied without its own engine, cab, or chassis. |
| Speeds | 6 forward, 1 reverse. |
| Gear ratios | 1st 4.40:1, 2nd 2.33:1, 3rd 1.53:1, 4th 1.00:1, 5th 0.72:1, 6th 0.61:1, reverse -3.97:1. Overall ratio spread (1st to 6th) is about 7.21:1. |
| Control system | Electro-hydraulic, fully modulated, oil-cooled multidisc clutches managed by Cat Electronic Clutch Pressure Control (ECPC). Gear selection is made through a keypad shifter control group. 24V electrical system; a 12V variant is documented on some configurations. |
Torque converter & retarder
| Torque converter | Lock-up clutch torque converter, locked up (direct drive) in all forward gears, integral to the transmission housing. Number of converter stages is not published. |
| Maximum converter outlet oil temperature | 121°C (250°F). |
| Retarder (factory option) | Optional retarder rated 399 kW (535 hp) at 2400 rpm. Braking capacity beyond this power rating is not documented — verify with your dealer. |
Power & torque ratings
| Gross input power | 447 kW (600 hp). |
| Gross peak input torque | 2746 N·m (2025 lb-ft). |
| Maximum turbine torque | 3525 N·m (2600 lb-ft). |
| Rated input speed | 2100 rpm. |
| Maximum input speed | 2500 rpm. |
| Output shaft speed | Not separately published. Output speed is a function of input speed and the selected gear ratio (see Transmission group ratios). |
Configuration options
| Side PTO | Standard side-mounted 8-bolt power take-off, 1:1 ratio. |
| Integral PTO (optional) | Mounted at the 1 o'clock and 11 o'clock positions of the transmission housing, 1.09:1 ratio. |
| Rear PTO (optional) | 1.25:1 ratio, rated to about 1355 N·m (1000 lb-ft). |
| Integral pump drive (optional) | Factory-offered integral pump drive for direct mounting of well-service pump equipment, in place of or alongside PTO drives. |
| Drop box / transfer gear (optional) | Integral drop box offered for 2WD or 4WD drive-axle transfer-gear applications. |
| Remote-mount options | Remote-mount ECU and remote-mount oil filter offered as factory options. |
Service capacities (summary)
| Transmission oil (TDTO) system capacity | About 25 L (6.5 US gal) hydraulic fill. Actual system volume varies with cooler size, lines, and installation, and the initial fill can exceed this figure. Fluid spec is Cat TDTO (Transmission/Drive Train Oil). |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
CX31-P600 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Transmission and torque converter oil (power train sump) | 25 L (6.5 US gal); varies with cooler size, external lines, and installation, and initial fill can exceed the nominal figure | Cat TDTO (Transmission/Drive Train Oil), offered in SAE 10W, SAE 30, and SAE 50 grades selected per ambient operating temperature; Cat TDTO-TMS multi-viscosity synthetic oil is an accepted alternative for wide-temperature-range service. Maximum converter outlet oil temperature is 121 C (250 F). |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar CX31-P600 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 3,000 h |
|
Servicing the CX31-P600 beyond the schedule
Predictive Maintenance & Fluid Analysis
Track TDTO condition with a scheduled S·O·S oil sample program rather than fixed drain intervals alone: the well-service duty cycle glazes clutch material and elevates sump temperature faster than typical mobile equipment. Pull stored and active diagnostics from the transmission ECU with Cat Electronic Technician for the input/output speed sensors, oil temperature sensor, and ECPC modulating solenoids before symptoms surface at the keypad shifter. Watch converter outlet temperature against the 121°C (250°F) limit and correlate rising trends with an oil cooler that needs cleaning.
Corrective & Common Repairs
Soft or delayed lockup, a flare on shift, or a stored ECPC solenoid fault usually trace back to a chafed harness or corroded connector in the dusty well-site environment rather than a failed clutch pack. Check wiring and connector condition on the speed and oil-temperature sensors before condemning internal parts; a logged clutch-pressure fault that clears after cleaning and reseating a connector points to wiring, not the solenoid. Retarder fade or overheating on equipped units is most often a fouled cooling circuit, not a retarder defect; verify cooler flow first.
Overhaul & Rebuild Points
A full internal rebuild -- clutch pack replacement, torque converter service, ECPC modulation-pressure calibration -- needs a transmission test bench and Cat-specific software most independent shops do not carry; a rebuild without that tooling risks mis-modulated clutches and an early repeat failure. Verify converter stall speed and clutch fill/modulation pressures against factory spec with Cat ET before and after any teardown. On PTO, integral pump-drive, or drop-box equipped units, check gear and spline wear at the same overhaul interval since these share the transmission's main lubrication circuit.
Seasonal & Environment Servicing
Match TDTO grade to ambient operating range: SAE 10W, 30, or 50 for a narrower seasonal band, or Cat TDTO-TMS multi-viscosity synthetic where the unit moves between well sites across a wide temperature swing without a fluid change. Well-site duty exposes the ECPC harness and connectors to dust, wash-down water, and constant vibration, so inspect connector seals and harness routing at every service stop rather than waiting for a fault code. Confirm the oil cooler and retarder heat exchanger (if equipped) are clear before hot-weather, high-cycling pump work.
CX31-P600 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 328-3655 | Filter Element As-Oil | Hydraulic service | Check fitment → |
| 317-9812 | Valve-Relief | Lubrication service | Check fitment → |
| 144-6691 | Filter-Oil | Lubrication service | Check fitment → |
| 8S-9129 | Filter-Magnetic | Scheduled service item | 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.
CX31-P600 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| 718-14 | Transmission System - Special Instruction, logged when transmission output speed rises above roughly 50 rpm while the unit is deliberately held in torque-converter stall (lockup-disable) mode for pump pressure testing | Output speed climbing past the stall-test limit during a fracturing/well-service pump pressure test, or an active ECPC solenoid diagnostic or short-to-battery fault on the lockup clutch circuit interrupting the stall hold | Return the transmission to normal drive/lockup mode, then use Cat Electronic Technician to check for active ECPC solenoid or lockup-clutch circuit diagnostics before repeating the stall/pressure test |
| 147 | Component Identifier for the lockup/ECPC clutch pressure sensor circuit that feeds clutch modulation pressure feedback to the transmission ECU | Failed pressure sensor, chafed or open wiring, corroded connector, or abnormal (too high/too low) hydraulic pressure at the sensor | Review active and logged diagnostics on Cat Electronic Technician, check sensor supply voltage and wiring continuity, then inspect the ECPC modulating valve and sensor connector |
| 177 | Component Identifier for the transmission oil temperature sensor circuit | Open or shorted sensor/wiring, corroded connector, or a genuine overtemperature condition from low fluid level, a plugged cooler, or sustained high load | Check sensor resistance and wiring with Cat Electronic Technician, verify transmission oil level, and inspect the oil cooler for restriction |
| 191 / 671 | Component Identifier for the transmission output speed sensor circuit, used for ground/output speed feedback and shift-point logic in the transmission ECU | Damaged sensor, excessive sensor air gap, metal debris on the sensor tip, or a wiring/connector fault | Inspect the sensor air gap and tip for debris, check wiring and connector condition, and confirm signal presence on Cat Electronic Technician |
| 669 | Component Identifier for the transmission input speed sensor circuit, used for torque-converter lockup timing and clutch modulation calculations | Sensor damage, incorrect air gap, or a wiring fault causing loss or corruption of the input speed signal | Check sensor gap and wiring, then confirm a valid input speed signal on Cat Electronic Technician during engine start and operation |
| 631-636 | Component Identifier range covering the individual ECPC clutch modulating solenoids, one per clutch pack in the powershift gearset | Solenoid coil open or shorted, wiring fault, or a modulating valve sticking from contamination, preventing correct clutch fill/modulation | Use Cat Electronic Technician to identify which clutch solenoid is flagged, check that solenoid's resistance and wiring, and inspect the modulating valve for contamination |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
CX31-P600 attachments & work tools
Host applications
Factory-configured as the power-train link between a customer-supplied engine and oilfield pump or hoisting equipment: workover rigs, kill-mud pumps, coil-tubing pump support, nitrogen units, acidizing units, and cementing units. On self-propelled well-service skids or trucks an optional drop box lets the same transmission also drive the chassis axles, so it serves both the pump load and vehicle propulsion.
Side power take-off
Standard side PTO mounts on an 8-bolt pad and turns at 1:1 ratio in the same rotation as the engine, giving a straightforward accessory drive without changing shaft speed or direction.
Integral pump drive
Optional integral PTO pads at the 1 o'clock and 11 o'clock positions let a pump mount directly on the transmission housing at roughly 1.09:1 ratio, removing the separate driveline that would otherwise run between the transmission and the pump end and shortening the overall power-train package.
Rear PTO
Optional rear PTO at the 5 o'clock position turns opposite engine rotation at roughly 1.25:1 ratio and is rated near 1356 N·m (1,000 lb-ft), used to drive a secondary pump or auxiliary component off the back of the transmission when the main pump load is already carried through another drive point.
Retarder
Optional oil-cooled retarder rated near 399 kW (535 hp) at 2,400 rpm provides controlled deceleration. It supports both highway transport between well sites and controlled load management during workover/drawworks operation.
Transfer gear (drop box)
Optional integral drop box adds a 2WD or 4WD transfer-gear output so one power-train configuration can carry both the pump/PTO load and vehicle propulsion on self-propelled well-service units, rather than needing a separate vehicle transmission.
Input and output coupling
Bolts to the customer-supplied engine at the input through an SAE No. 1 dry flywheel housing. The output end accepts a 1710 or 1810 yoke, an 1810 companion flange, or an ISO 8667-T180 flange depending on what the driven pump or driveline requires. It is matched to C9, C11, C13, C15, and C18 ACERT driver engines (A and B ratings).
Operating modes
Transmission control software offers selectable modes -- auto pumper, manual pumper, workover/drawworks, and road -- so the same unit can be matched to continuous pump-rate control, manual throttle operation, hoisting/drawworks work, or highway travel between locations.
All CX31-P600 assemblies by section
Every catalogued assembly group for the Caterpillar CX31-P600. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Basic Transmission
341-3371 Gear & Case Gp-Transfer
| 27***15 | Drive Group-Transfer; -Disconnect | 3 |
| 27***26 | Shaft | 1 |
| 27***22 | Filter & Mtg Group-Oil; -Output Transfer Gear | 1 |
341-3370 Gear & Case Gp-Transfer
| 27***15 | Drive Group-Transfer; -Disconnect | 2 |
| 27***21 | Shaft | 1 |
| 27***22 | Filter & Mtg Group-Oil; -Output Transfer Gear | 1 |
339-3901 Gear & Case Gp-Transfer
| 14***07 | Plug; (Hex Head) (-6 Orb) (Current) (16***35 Friction Disc Interchangeable With 11***47) (Use All Of One Part Number) | 1 |
| 14***08 | Plug As. | 3 |
| 15***47 | Cup-Bearing | 4 |
347-7835 Option Ar-Power Train -Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
347-7838 Option Ar-Power Train -Transfer Gear-4wd, Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***80 | Control Group-Transmission | 1 |
347-7843 Option Ar-Power Train -Integral Pump Drive
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***80 | Control Group-Transmission | 1 |
| 30***02 | Fastener Group-Xmsn Mounting; -Engine | 1 |
347-7845 Option Ar-Power Train -Side Pto Drive, Retarder
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***80 | Control Group-Transmission | 1 |
| 30***02 | Fastener Group-Xmsn Mounting; -Engine | 1 |
347-7830 Option Ar-Power Train -Transfer Gear-2wd, Integral Pump Drive
| 28***67 | Warning Group-Backup | 1 |
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***80 | Control Group-Transmission | 1 |
347-7846 Option Ar-Power Train -Side Pto Drive, Retarder
| 28***64 | Warning Group-Backup | 1 |
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
347-7842 Option Ar-Power Train -Side Pto Drive
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***80 | Control Group-Transmission | 1 |
| 30***03 | Fastener Group-Tmsn Mounting; -Engine | 1 |
347-7815 Option Ar-Power Train -Side Pto Drive
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
| 30***80 | Control Group-Transmission | 1 |
347-7819 Option Ar-Power Train -Transfer Gear-2wd, Integral Pump Drive
| 28***67 | Warning Group-Backup | 1 |
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
347-7828 Option Ar-Power Train -Integral Pump Drive, Retarder
| 28***64 | Warning Group-Backup | 1 |
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***03 | Fastener Group-Tmsn Mounting; -Engine | 1 |
347-7817 Option Ar-Power Train -Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
347-7833 Option Ar-Power Train -Side Pto Drive, Retarder
| 28***64 | Warning Group-Backup | 1 |
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
347-7826 Option Ar-Power Train -Side Pto Drive
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
| 30***80 | Control Group-Transmission | 1 |
347-7829 Option Ar-Power Train -Transfer Gear-2wd, Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
347-7844 Option Ar-Power Train -Integral Pump Drive
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***80 | Control Group-Transmission | 1 |
| 30***03 | Fastener Group-Tmsn Mounting; -Engine | 1 |
347-7834 Option Ar-Power Train -Integral Pump Drive, Retarder
| 28***64 | Warning Group-Backup | 1 |
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***02 | Fastener Group-Xmsn Mounting; -Engine | 1 |
347-7818 Option Ar-Power Train -Integral Pump Drive
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***80 | Control Group-Transmission | 1 |
| 30***03 | Fastener Group-Tmsn Mounting; -Engine | 1 |
347-7816 Option Ar-Power Train -Side Pto Drive, Retarder
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***80 | Control Group-Transmission | 1 |
| 30***03 | Fastener Group-Tmsn Mounting; -Engine | 1 |
347-7837 Option Ar-Power Train -Transfer Gear-4wd, Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
347-7836 Option Ar-Power Train -Transfer Gear-2wd, Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
347-7840 Option Ar-Power Train -Transfer Gear-2wd, Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***80 | Control Group-Transmission | 1 |
347-7831 Option Ar-Power Train -Side Pto Drive
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
| 30***80 | Control Group-Transmission | 1 |
347-7832 Option Ar-Power Train -Side Pto Drive
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
| 30***02 | Fastener Group-Xmsn Mounting; -Engine | 1 |
347-7823 Option Ar-Power Train -Transfer Gear-2wd, Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***80 | Control Group-Transmission | 1 |
347-7839 Option Ar-Power Train -Transfer Gear-2wd, Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
347-7825 Option Ar-Power Train -Transfer Gear-4wd, Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***80 | Control Group-Transmission | 1 |
347-7821 Option Ar-Power Train -Transfer Gear-2wd, Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
347-7827 Option Ar-Power Train -Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
347-7820 Option Ar-Power Train -Transfer Gear-2wd, Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
347-7847 Option Ar-Power Train -Side Pto Drive
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
| 30***80 | Control Group-Transmission | 1 |
| 30***02 | Fastener Group-Xmsn Mounting; -Engine | 1 |
347-7824 Option Ar-Power Train -Transfer Gear-4wd, Integral Pump Drive
| 28***64 | Warning Group-Backup | 1 |
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
341-2138 Planetary Gp-Transmission
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 0T***00 | Plug (.5625" Diameter) | 1 |
| 13***61 | Plate-Clutch | 5 |
304-9055 Planetary Gp-Transmission
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 0T***00 | Plug (.5625" Diameter) | 1 |
| 13***61 | Plate-Clutch | 5 |
341-2139 Planetary Gp-Transmission -Retarder
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 0T***00 | Plug (.5625" Diameter) | 1 |
| 13***61 | Plate-Clutch | 5 |
334-7105 Transmission Ar-Complete -Side Pto Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***59 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
334-7111 Transmission Ar-Complete -Transfer Gear-4wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***59 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
333-2754 Transmission Ar-Complete -Transfer Gear-2wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
335-2599 Transmission Ar-Complete -Transfer Gear-2wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***61 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
335-2597 Transmission Ar-Complete -Integral Pump Drive, Retarder
| 25***64 | Cover Group-Shipping | 1 |
| 28***61 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
335-2601 Transmission Ar-Complete -Transfer Gear-4wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***61 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
344-6289 Transmission Ar-Complete -Transfer Gear-2wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***61 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
347-0072 Transmission Ar-Complete -Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***61 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
335-2602 Transmission Ar-Complete -Transfer Gear-4wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***61 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
333-2755 Transmission Ar-Complete -Transfer Gear-2wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
347-0075 Transmission Ar-Complete -Side Pto Drive, Retarder
| 25***64 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
332-4752 Transmission Ar-Complete -Side Pto Drive, Retarder
| 25***64 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
347-6914 Transmission Ar-Complete -Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
347-0074 Transmission Ar-Complete -Side Pto Drive, Retarder
| 25***64 | Cover Group-Shipping | 1 |
| 28***61 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
347-6917 Transmission Ar-Complete -Transfer Gear-4wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***61 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
334-7109 Transmission Ar-Complete -Integral Pump Drive, Retarder
| 25***64 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
334-7108 Transmission Ar-Complete -Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***59 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
335-2596 Transmission Ar-Complete -Side Pto Drive, Retarder
| 25***64 | Cover Group-Shipping | 1 |
| 28***61 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
335-2598 Transmission Ar-Complete -Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***61 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
347-0070 Transmission Ar-Complete -Side Pto Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***61 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
334-7110 Transmission Ar-Complete -Transfer Gear-2wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***59 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
333-2757 Transmission Ar-Complete -Transfer Gear-4wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
347-0071 Transmission Ar-Complete -Side Pto Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
334-7112 Transmission Ar-Complete -Transfer Gear-4wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***59 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
347-0073 Transmission Ar-Complete -Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
347-6915 Transmission Ar-Complete -Transfer Gear-2wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
333-2756 Transmission Ar-Complete -Transfer Gear-4wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
333-2753 Transmission Ar-Complete -Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
334-7107 Transmission Ar-Complete -Integral Pump Drive, Rear Pto, Retarder
| 25***64 | Cover Group-Shipping | 1 |
| 28***27 | Drive Group-Pump; -Rear Power Take-Off | 1 |
| 28***59 | Torque Converter Group | 1 |
335-2595 Transmission Ar-Complete -Side Pto Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***61 | Torque Converter Group | 1 |
| 28***64 | Plate Group-Drive | 1 |
334-7106 Transmission Ar-Complete -Side Pto Drive, Rear Pto, Retarder
| 25***64 | Cover Group-Shipping | 1 |
| 28***27 | Drive Group-Pump; -Rear Power Take-Off | 1 |
| 28***59 | Torque Converter Group | 1 |
332-4753 Transmission Ar-Complete -Integral Pump Drive, Rear Pto, Retarder
| 25***64 | Cover Group-Shipping | 1 |
| 28***27 | Drive Group-Pump; -Rear Power Take-Off | 1 |
| 28***06 | Plate Group-Drive | 1 |
347-6916 Transmission Ar-Complete -Transfer Gear-4wd, Integral Pump Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
332-4751 Transmission Ar-Complete -Side Pto Drive
| 25***65 | Cover Group-Shipping | 1 |
| 28***06 | Plate Group-Drive | 1 |
| 28***76 | Torque Converter Group | 1 |
345-9198 Transmission Ar-Core -Integral Pump Drive, Retarder
| 28***38 | Pump Group-Gear | 1 |
| 29***67 | Drive Group-Pump | 1 |
| 33***07 | Pan Group-Transmission Oil; -Retarder | 1 |
345-9203 Transmission Ar-Core -Integral Pump Drive
| 26***43 | Pump Group-Gear; -1-Section | 1 |
| 29***67 | Drive Group-Pump | 1 |
| 30***55 | Planetary Group-Transmission | 1 |
345-9199 Transmission Ar-Core -Side Pto Drive, Retarder
| 27***90 | Housing Group-Torque Converter; -Retarder | 1 |
| 28***38 | Pump Group-Gear | 1 |
| 33***07 | Pan Group-Transmission Oil; -Retarder | 1 |
345-9201 Transmission Ar-Core -Side Pto Drive
| 26***43 | Pump Group-Gear; -1-Section | 1 |
| 26***96 | Pan Group-Transmission Oil; -Deep Sump | 1 |
| 29***12 | Housing Group-Torque Converter | 1 |
345-9202 Transmission Ar-Core -Transfer Gear-2wd, Integral Pump Drive
| 26***43 | Pump Group-Gear; -1-Section | 1 |
| 29***67 | Drive Group-Pump | 1 |
| 30***55 | Planetary Group-Transmission | 1 |
345-9200 Transmission Ar-Core
| 26***43 | Pump Group-Gear; -1-Section | 1 |
| 26***96 | Pan Group-Transmission Oil; -Deep Sump | 1 |
| 29***67 | Drive Group-Pump | 1 |
Electrical System
342-6197 Control Gp-Drive Axle -Transfer Gear-2wd
| 09***69 | Bolt-Socket Head; (M5x0.8x25-mm) | 4 |
| 10***25 | Clip | 1 |
| 11***43 | Sleeve-Plastic; (32-mm Dia)(240-cm) | 0 |
342-6196 Control Gp-Drive Axle -Transfer Gear-4wd
| 09***69 | Bolt-Socket Head; (M5x0.8x25-mm) | 6 |
| 10***25 | Clip | 1 |
| 11***43 | Sleeve-Plastic; (32-mm Dia)(240-cm) | 0 |
342-6195 Control Gp-Drive Axle -Transfer Gear-4wd
| 09***69 | Bolt-Socket Head; (M5x0.8x25-mm) | 6 |
| 10***25 | Clip | 1 |
| 11***43 | Sleeve-Plastic; (32-mm Dia)(240-cm) | 0 |
304-9099 Electronics Gp-Power Train
| 30***99 | Electronics Group-Power Train | 1 |
| 33***83 | Software Group-Power Train | 1 |
299-2489 Sensor Gp-Liquid Level
| 29***09 | Wire As | 1 |
| 29***89 | Sensor Group-Liquid Level | 1 |
| 31***48 | Bracket | 1 |
214-2485 Sensor Gp-Speed
| 19***04 | Sensor Group-Speed; (Primary, Timing, Camshaft) | 1 |
| 21***85 | Sensor Group-Speed | 1 |
| 22***47 | Seal-O-Ring | 1 |
196-1185 Sensor Gp-Speed
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 17***49 | Strap; (Marker) | 1 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 2 |
236-6222 Sensor Gp-Speed
| 19***05 | Sensor Group-Speed; (Secondary, Timing, Camshaft) | 1 |
| 22***47 | Seal-O-Ring | 1 |
| 23***22 | Sensor Group-Speed | 1 |
234-5013 Sensor Gp-Temperature
| 23***13 | Sensor Group-Temperature; -Air Inlet Manifold | 1 |
| 23***80 | Seal-O-Ring | 1 |
| 25***53 | Sensor As-Temperature; (Torque Converter Outlet Oil) | 1 |
325-0612 Switch Gp-Pressure -Differential
| 03***42 | Seal-O-Ring; (11.89mm Id) | 1 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 2 |
287-6367 Warning Gp-Backup
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
| 15***60 | Kit-Connecting Plug; (3-Pin)(Engine Sensor Wiring Harness) | 1 |
287-6364 Warning Gp-Backup
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
| 11***15 | Relay As; (12-Volt)(Junction Box) | 1 |
344-1412 Wiring Gp-Transmission
| 12***74 | Tube-Heat Shrink; (5.72-mm Dia)(950-cm) | 0 |
| 12***75 | Tube-Heat Shrink; (7.44-mm Dia)(560-cm) | 0 |
| 12***76 | Tube-Heat Shrink; (17.78-mm Dia)(140-cm) | 0 |
Operator Station
304-9080 Control Gp-Transmission
| 29***60 | Control Group-Transmission; -Keypad Shifter | 1 |
| 30***80 | Control Group-Transmission | 1 |
298-3860 Control Gp-Transmission -Keypad Shifter
| 26***30 | Bracket-Mounting | 2 |
| 29***60 | Control Group-Transmission; -Keypad Shifter | 1 |
320-2982 Control Gp-Transmission -Rh
| 13***00 | Clip; (Tab) | 2 |
| 24***94 | Receptacle As-Connector; (12-Pin) | 1 |
| 26***24 | Plug As-Connector; (4-Pin) | 1 |
341-8437 Control Gp-Transmission
| 29***60 | Control Group-Transmission; -Keypad Shifter | 2 |
| 34***37 | Control Group-Transmission | 1 |
341-8438 Control Gp-Transmission
| 29***60 | Control Group-Transmission; -Keypad Shifter | 1 |
| 32***82 | Control Group-Transmission; -Rh | 1 |
| 34***38 | Control Group-Transmission | 1 |
239-5025 Control Gp-Unprgmed Monitor -Messenger
| 12***12 | Screw-Pan Head; (8-16x0.32-In) | 1 |
| 23***24 | Control Group-Monitor; (Messenger) | 1 |
| 23***25 | Control Group-Unprgmed Monitor; -Messenger | 1 |
301-3081 Module Gp-Display -Messenger
| 23***25 | Control Group-Unprgmed Monitor; -Messenger | 1 |
| 30***81 | Module Group-Display; -Messenger | 1 |
Service Equipment And Supplies
304-9076 Film Gp
| 22***81 | Film-Warning; -Universal | 2 |
| 30***76 | Film Group | 1 |
| 33***02 | Film-Information; (Transmission Oil, Read Omm) | 1 |
304-9075 Film Gp
| 22***81 | Film-Warning; -Universal | 2 |
| 30***75 | Film Group | 1 |
| 33***02 | Film-Information; (Transmission Oil, Read Omm) | 1 |
Transmission Case &Amp; Mounting
280-3947 Cover Gp-Access -Transfer Gear
| 28***44 | Cover | 1 |
| 28***47 | Cover Group-Access; -Transfer Gear | 1 |
| 4J***06 | Packing,Preformed Ferrule; Part Of Kit P/N 5r***25 Part Of Kit P/N 8s***57 | 4 |
250-5764 Cover Gp-Shipping
| 17***30 | Plug As | 2 |
| 1N***98 | Plug; (Clutch/Brake Models Only) | 1 |
| 25***64 | Cover Group-Shipping | 1 |
250-5765 Cover Gp-Shipping
| 25***65 | Cover Group-Shipping | 1 |
| 30***24 | Clamp As | 3 |
| 5P***01 | Seal-O-Ring; (29.74mm Id)(Pump To Fitting As) | 2 |
304-9079 Cover Gp-Transmission -Pto
| 27***66 | Cover | 2 |
| 27***47 | Cover | 1 |
| 27***06 | Gasket | 2 |
304-9082 Cover Gp-Transmission
| 27***47 | Cover | 1 |
| 2H***34 | Seal Transfer Pump To Plate | 1 |
| 30***82 | Cover Group-Transmission | 1 |
344-7461 Cover Gp-Transmission
| 34***61 | Cover Group-Transmission | 1 |
| 4M***89 | Seal (4.109" Inside Diameter) | 2 |
| 5F***06 | Packing,Preformed Pump Mtg Part Of Kit P/N 5r***25 | 2 |
306-6403 Fastener Gp-Tmsn Mounting -Engine
| 30***03 | Fastener Group-Tmsn Mounting; -Engine | 1 |
| 8T***60 | Washer-Hard (For Use With 7/16 In Bolts) | 24 |
| 8T***16 | Bolt-Plt; (7/16unc X 1 1/2) | 24 |
306-6402 Fastener Gp-Xmsn Mounting -Engine
| 30***02 | Fastener Group-Xmsn Mounting; -Engine | 1 |
| 8T***60 | Washer-Hard (For Use With 7/16 In Bolts) | 12 |
| 8T***16 | Bolt-Plt; (7/16unc X 1 1/2) | 12 |
338-0407 Pan Gp-Transmission Oil -Retarder
| 09***66 | Bolt; (M8x1.25x75-mm) | 1 |
| 14***38 | Seal-O-Ring | 2 |
| 17***06 | Elbow As | 1 |
266-4196 Pan Gp-Transmission Oil -Deep Sump
| 18***98 | Connector As | 2 |
| 23***82 | Seal-O-Ring | 1 |
| 23***84 | Seal; (35.6mm Od) | 1 |
339-3916 Pan Gp-Transmission Oil
| 18***98 | Connector As | 2 |
| 21***68 | Seal-O-Ring; (11.89-mm Id) | 1 |
| 23***84 | Seal; (35.6mm Od) | 1 |
Transmission Input
262-7071 Coupling Gp-Torsional -Torque Converter
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 12 |
| 24***66 | Spring; (33-mm Odx46-mm Lg) | 12 |
| 24***67 | Spring; (21.1-mm Odx36.6-mm Lg) | 6 |
299-2467 Drive Gp-Pump
| 10***32 | Bearing As-Roller | 1 |
| 13***14 | Adapter-Pump | 2 |
| 14***44 | Shim Pack; (Includes 12-Shims) | 2 |
282-5927 Drive Gp-Pump -Rear Pto
| 09***16 | Ring-Retaining; (External) | 1 |
| 28***27 | Drive Group-Pump; -Rear Power Take-Off | 1 |
| 28***28 | Shaft As | 1 |
289-9549 Fastener Gp-Coupling -Transmission
| 09***70 | Bolt-Socket Hd; (M12 X 1.75 X 45) | 12 |
| 28***49 | Fastener Group-Coupling; -Transmission | 1 |
289-9545 Fastener Gp-Coupling -Engine
| 10***69 | Bolt-Self-Locking; (M16x2x60-mm) | 8 |
| 28***45 | Air Inlet Tube, Fastener Group-Coupling; -Engine | 1 |
289-9547 Fastener Gp-Coupling -Transmission
| 28***47 | Fastener Group-Coupling; -Transmission | 1 |
| 8T***71 | Bolt-Socket Head; (M10x1.5x35-mm) | 12 |
289-9548 Fastener Gp-Coupling -Engine
| 0S***76 | Bolt 5.08 cm(2 In.) Long | 12 |
| 28***48 | Fastener Group-Coupling; -Engine | 1 |
304-9040 Housing Gp-Torque Converter
| 1A***23 | Dowel (1" Long) | 4 |
| 26***91 | Insert-Threaded; (M16x2-Thd) | 12 |
| 26***88 | Insert-Threaded; (M8x1.25-Thd) | 12 |
296-5812 Housing Gp-Torque Converter
| 13***78 | Seal-O-Ring | 1 |
| 16***50 | Bolt; (M12x1.75x65-mm) | 13 |
| 1A***23 | Dowel (1" Long) | 1 |
277-6890 Housing Gp-Torque Converter -Retarder
| 09***58 | Bolt; (Socket Head) (M10x1.5x70mm) | 13 |
| 12***63 | Ring-Seal | 2 |
| 13***78 | Seal-O-Ring | 1 |
341-1973 Housing Gp-Torque Converter
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 03***36 | Seal-O-Ring | 1 |
| 09***58 | Bolt; (Socket Head) (M10x1.5x70mm) | 13 |
334-9893 Housing Gp-Torque Converter
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 03***36 | Seal-O-Ring | 1 |
| 13***78 | Seal-O-Ring | 1 |
284-3606 Plate Gp-Drive
| 25***51 | Gear-Flywheel; (113-Teeth) | 1 |
| 28***97 | Plate-Washer | 1 |
| 28***98 | Plate-Flexible | 5 |
288-2664 Plate Gp-Drive
| 25***51 | Gear-Flywheel; (113-Teeth) | 1 |
| 28***64 | Plate Group-Drive | 1 |
| 28***65 | Adapter-Drive | 1 |
288-2659 Torque Converter Gp
| 09***70 | Bolt-Socket Hd; (M12 X 1.75 X 45) | 8 |
| 12***94 | Seal-O-Ring | 1 |
| 12***10 | Seal-O-Ring | 1 |
288-2661 Torque Converter Gp
| 09***70 | Bolt-Socket Hd; (M12 X 1.75 X 45) | 8 |
| 12***94 | Seal-O-Ring | 1 |
| 12***10 | Seal-O-Ring | 1 |
288-2676 Torque Converter Gp
| 09***70 | Bolt-Socket Hd; (M12 X 1.75 X 45) | 8 |
| 12***94 | Seal-O-Ring | 1 |
| 12***10 | Seal-O-Ring | 1 |
Transmission Oil System
341-8429 Control Gp-Transmission Hyd
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
341-8436 Control Gp-Transmission Hyd
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 03***28 | Seal-O-Ring | 1 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
341-8430 Control Gp-Transmission Hyd
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
341-8431 Control Gp-Transmission Hyd
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
342-7392 Control Gp-Transmission Hyd
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
341-8432 Control Gp-Transmission Hyd
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 03***28 | Seal-O-Ring | 1 |
| 09***12 | Clip | 2 |
341-8433 Control Gp-Transmission Hyd
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
341-8435 Control Gp-Transmission Hyd
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
341-8428 Control Gp-Transmission Hyd
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***04 | Kit-Receptacle; (4-Pin)(Start Switch) | 1 |
291-2253 Filler Gp-Power Train Oil -Transmission
| 23***35 | Seal-O-Ring | 1 |
| 29***53 | Filler Group-Power Train Oil; -Transmission | 1 |
| 29***17 | Adapter | 1 |
339-3918 Filter & Mtg Gp-Oil
| 13***01 | Clip | 1 |
| 14***35 | Connect Group; (Each Includes) | 4 |
| 16***67 | Fitting As; (Quick Disconnect, Male)(Quick Disconnect) | 1 |
304-9037 Filter & Mtg Gp-Oil -Transmission
| 06***61 | Seal-O-Ring (Id=40.87mm) | 2 |
| 13***29 | Seal-O-Ring | 1 |
| 13***00 | Clip; (Tab) | 1 |
275-1022 Filter & Mtg Gp-Oil -Output Transfer Gear
| 14***47 | Elbow; (-12 Orb/Orfs) | 2 |
| 19***88 | Filter Group-Oil; -Transmission | 1 |
| 27***22 | Filter & Mtg Group-Oil; -Output Transfer Gear | 1 |
192-0488 Filter Gp-Oil -Transmission
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 14***91 | Filter-Oil; (Advanced Efficiency) | 1 |
| 18***35 | Pin-Connector; (16-Ga To 18-Ga) | 1 |
341-2076 Lines Gp-Power Train Oil -Transfer Gear
| 14***78 | Elbow, 90°,-6 Orb /-6 Orfs; (90°) (-6 Orbx-6orfs) | 1 |
| 15***44 | Connector Group | 3 |
| 15***29 | Elbow Group | 1 |
341-3914 Lines Gp-Pump
| 14***78 | Elbow, 90°,-6 Orb /-6 Orfs; (90°) (-6 Orbx-6orfs) | 1 |
| 15***44 | Connector Group | 2 |
| 17***87 | Connector As | 1 |
339-3902 Pump & Lines Gp
| 10***89 | Union | 1 |
| 14***39 | Connector As. | 1 |
| 14***47 | Elbow; (-12 Orb/Orfs) | 2 |
282-9538 Pump Gp-Gear
| 10***86 | Seal-O-Ring | 2 |
| 16***42 | Bolt; (M10x1.5x55-mm) | 2 |
| 28***38 | Pump Group-Gear | 1 |
191-6114 Pump Gp-Gear -Output Transfer Gear
| 15***65 | Cover As | 1 |
| 15***69 | Adapter As | 1 |
| 15***71 | Gear As | 1 |
265-5143 Pump Gp-Gear -1-Section
| 10***86 | Seal-O-Ring | 2 |
| 16***42 | Bolt; (M10x1.5x55-mm) | 2 |
| 26***56 | Tube As | 1 |
283-8665 Pump Gp-Gear -Transmission Charge, Scavenge
| 12***36 | Bearing-Sleeve | 4 |
| 26***11 | Gear; (17-Teeth) | 1 |
| 26***12 | Gear As-Pump | 1 |
244-7772 Valve Gp-Modulating -Transmission Clutch, Ecpc
| 16***08 | Washer; (13.03x25.4x2.38-mm Thk) | 1 |
| 21***68 | Seal-O-Ring; (11.89-mm Id) | 1 |
| 21***73 | Nut; (1/2-28-Thd) | 1 |
302-3840 Valve Gp-Modulating
| 11***03 | Kit-Seal; (Modulating Valve) | 1 |
| 16***08 | Washer; (13.03x25.4x2.38-mm Thk) | 1 |
| 16***24 | Nut-Self-Locking; (1/2-28-Thd) | 1 |
321-7039 Valve Gp-Reducing
| 16***67 | Fitting As; (Quick Disconnect, Male)(Quick Disconnect) | 1 |
| 21***68 | Seal-O-Ring; (11.89-mm Id) | 1 |
| 30***40 | Valve Group-Modulating, Name-Plate (Specification) | 1 |
304-9025 Valve Gp-Relief
| 11***50 | Cover | 2 |
| 14***79 | Spring-Compression | 1 |
| 17***68 | Spool As | 2 |
319-3961 Valve Gp-Retarder Hyd Control
| 16***67 | Fitting As; (Quick Disconnect, Male)(Quick Disconnect) | 4 |
| 1S***46 | Spring | 1 |
| 21***68 | Seal-O-Ring; (11.89-mm Id) | 1 |
225-0300 Valve Gp-Solenoid
| 20***71 | Kit-Seal; (Solenoid Valve) | 1 |
| 21***61 | Flange | 1 |
| 22***00 | Valve Group-Solenoid; -Hydraulic Lockout | 1 |
Transmission Output
275-0815 Drive Gp-Transfer
| 13***83 | Bolt-12 Point Head; (M10x1.5x30-mm) | 5 |
| 13***45 | Pin-Spring | 1 |
| 14***07 | Plug; (Hex Head) (-6 Orb) (Current) (16***35 Friction Disc Interchangeable With 11***47) (Use All Of One Part Number) | 1 |
149-0147 Pump & Mtg Gp-Transfer Gear
| 14***47 | Pump & Mtg Group-Transfer Gear; -Diff Lock, Transfer Gear Lube | 1 |
| 19***14 | Pump Group-Gear; -Output Transfer Gear-Transfer Gear Lubrication | 1 |
| 1H***27 | Seal 10.1 cm(3.984 In.) I.D. | 1 |
292-4342 Yoke Gp
| 1T***06 | Retainer | 1 |
| 28***05 | Yoke | 1 |
| 29***42 | Yoke Group | 1 |
304-9004 Yoke Gp
| 1T***06 | Retainer | 1 |
| 30***04 | Yoke Group | 1 |
| 30***05 | Yoke-Flange | 1 |
CX31-P600 serial number reference
The CX31-P600 carries its own identification plate riveted to the transmission housing, separate from any engine or host-vehicle plate, since it is sold as a standalone power-shift driveline component. The plate is stamped with the product name CX31-P600 and the Product Identification Number, formatted as a 3-letter prefix followed by a sequential unit number (for example PFW00001); the letter prefix identifies which production/design serial break the unit belongs to, and the digits give the individual unit's sequence within that break.
| Prefix | Identifies | Notes |
|---|---|---|
| PFW | Base/original production serial break for the CX31-P600 well-servicing transmission; spans factory configurations built for the C9-C18 ACERT engine combinations (2WD and 4WD transfer gear, side or rear PTO drive, integral pump drive, retarder-equipped hydraulic control) rather than one specific variant. | Marked PFW1-UP (also written PFW00001-UP) on the transmission's own ID plate and in the CX31-P600 parts documentation, covering the transmission oil system, transfer gear/pump-drive options, retarder hydraulic control, and transmission control harness. |
| GFY | Later serial break on the same CX31-P600 platform, covering the same configuration options as the PFW break. Control-side documentation shows a running design change around this break (a transmission control harness is tied to the PFW break specifically) rather than a distinct market variant. | Marked GFY1-UP (also GFY00001-UP) in the CX31-P600 parts documentation for the operator-station and transmission-control groups. Appears alongside the PFW break on a shared transmission-assembly listing, placing GFY as a later serial break on the same assembly line rather than a separate product. |
Frequently asked questions
What driver engines does the CX31-P600 accept?
The CX31-P600 is supplied without its own engine and bolts to a customer-selected Cat C9, C11, C13, C15, or C18 ACERT engine through an SAE No. 1 dry flywheel housing input, matched to A and B engine power ratings.
What is the CX31-P600's input power and torque rating?
Gross input power is 447 kW (600 hp) at a rated input speed of 2100 rpm, with 2746 N·m (2025 lb-ft) gross peak input torque and a maximum turbine torque of 3525 N·m (2600 lb-ft). Maximum input speed is 2500 rpm.
What configuration options does the CX31-P600 offer?
Factory options include a standard side PTO (8-bolt, 1:1 ratio), an optional integral PTO at the 1 and 11 o'clock positions (about 1.09:1), an optional rear PTO (about 1.25:1, rated to about 1355 N·m/1000 lb-ft), an optional integral pump drive, an optional retarder rated near 399 kW (535 hp), and an optional integral drop box for 2WD or 4WD drive-axle output on self-propelled units.
What CX31-P600 owners discuss
How does continuous pump-drive cycling affect the torque converter and clutch packs on a CX31-P600?
The CX31-P600 uses electro-hydraulically modulated, oil-cooled multidisc clutches with a lock-up clutch and torque-converter drive active in every gear, which is a more heat-tolerant setup than a simple powershift. Field experience with this duty cycle (constant speed-matching to pump load rather than steady highway cruise) points to heat as the main wear driver, not the clutch material itself: units that see good cooler flow and clean oil hold up well, while units run with a marginal or partly fouled oil cooler show earlier clutch glazing and softer engagement. Soft or delayed engagement, a flare on lockup, or rising sump temperature under load are the usual first signs of pack wear worth chasing down before a full disc failure. Have your dealer verify converter stall speed and clutch modulation pressures against spec if any of these symptoms show up.
Are the PTO, retarder, and drop-box options on the CX31-P600 reliable in the field?
These are factory-integrated options (not bolt-on aftermarket units), and reports on them are generally favorable when the unit is kept within its rated duty cycle. Most retarder complaints trace back to a neglected cooling circuit (heat exchanger fouling, low coolant flow, or a plugged oil cooler) rather than a fault in the retarder itself, so retarder fade or overheating is usually a cooling-system maintenance issue first. PTO and integral pump-drive wear tends to show up as gear noise or spline slop tied to duty cycle and lubrication, not as a design weak point. This varies by configuration and installation, so have your dealer verify cooling-circuit performance and PTO gear condition on any unit showing symptoms.
Does the ECPC electronic clutch control have any known quirks?
ECPC modulates each clutch by varying current to proportional solenoids under ECM control, and the most common complaints in the field are electronic rather than mechanical: connector corrosion, chafed harness runs, and intermittent solenoid signal faults picked up from the dusty, wet, and vibration-heavy well-site environment. These often present as an erratic shift, a gear that feels like neutral, or a logged clutch-pressure fault that clears after the connector is cleaned and reseated. Genuine internal solenoid or seal failures do happen but are reported less often than harness-induced faults, so a stored/active fault code pull with the proper Cat diagnostic tool is the right first step before any parts are swapped. Have your dealer verify the fault code and re-test after any wiring repair, since an electronic fault misdiagnosed as a clutch failure leads to unnecessary teardown.
What oil change interval and contamination precautions make sense for a CX31-P600 in well-service duty?
Like other Cat powershift transmissions, this unit calls for a TO-4 spec transmission/drive-train oil (TDTO), not engine oil, because ordinary engine oil is too slippery for the wet-clutch friction material and promotes slip and glazing. Standard TDTO is commonly drained on a shorter interval than a full synthetic-blend TDTO, which can roughly double the interval, but the dusty, high-cycling nature of well-service pump work pushes most operators toward the shorter end of whatever interval their oil type allows, with regular oil sampling used to catch contamination or wear-metal trends early rather than relying on hours alone. Treat any interval as a starting point and adjust to actual site conditions and sample results. Have your dealer verify the correct interval and oil spec for your specific engine/transmission combination.
Can an independent shop rebuild a CX31-P600, or does it need to go back through Cat?
As with other Cat electro-hydraulic powershift transmissions in this family, a proper rebuild involves clutch-pack calibration and ECPC-related testing that benefits from a transmission test bench and OEM-specific tooling, which most independent shops don't carry. Shops that have attempted a full rebuild without that tooling report a higher chance of a mis-modulated clutch and an early repeat failure. Basic wear-item service (filters, external seals, oil changes) is routine independent-shop work; a full internal rebuild is generally steered back through a dealer with the right bench and software. Have your dealer confirm current rebuild/exchange options before committing to a teardown.
What should a buyer check when looking at a used CX31-P600 pump-drive package?
Run the unit under load and check converter lockup and shift quality for flare, slip, or delayed engagement, then pull the transmission ECM's stored and active fault history with the proper diagnostic tool rather than relying on the operator's word. Inspect the oil cooler and lines for bypassing or plugging, check retarder cooling-circuit condition if equipped, and look at PTO and integral pump-drive gear/spline wear along with the drop box gear oil condition if the unit has 2WD/4WD transfer gearing. Pull an oil sample for wear-metal and contamination analysis and compare service records against the hours and wear actually observed, since a unit with thin paperwork but heavy well-service hours is a common surprise. Have your dealer verify the fault code history and run a full diagnostic check before finalizing any purchase.
Is transmission overheating a common complaint in well-service pump applications?
The CX31-P600 includes a transmission oil temperature monitoring system specifically because sustained high-load pump matching generates more sustained heat than typical mobile equipment duty, and operators treat temperature management as a routine part of running the unit rather than an unusual concern. Reported overheating cases generally tie back to a compromised cooling circuit (fouled cooler, low flow, or an incorrectly sized engine-to-transmission cooling package for the application) rather than to the transmission's core design. Keeping the cooler clean and matching the cooling package to the actual pump-drive load is the main preventive step operators point to. Have your dealer verify the cooling package is correctly sized for your engine rating and duty cycle if temperature warnings occur.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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