Caterpillarchallenger
Caterpillar MTC845
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar MTC845 Challenger is a four-track, rubber-belted row-crop and heavy-tillage tractor sold through Caterpillar's own dealer network from 2002 to 2004, the last Challenger generation Caterpillar badged before handing the line fully to AGCO. It runs Caterpillar's own C12 diesel, an 11.9 L (729 ci) six-cylinder turbocharged engine with mechanical unit injectors, rated around 380 hp (283 kW) gross flywheel power, with published rated/max figures ranging into the high 370s to low 410s hp depending on test method. Base operating weight runs about 18,144 kg (40,000 lb); ballast, duals, and later trims push it higher. Drivetrain is a 16-speed (16F/4R) full powershift transmission with closed-center load-sensing hydraulics feeding a rubber-belt MobilTrac undercarriage with adjustable track gauge. In the MT800 lineup it sits between the smaller MT835 (340 hp) and the larger MT855 (450 hp) and MT865 (500 hp). Its direct ancestor is Caterpillar's own Challenger 65/65B rubber-track tractor line; its direct successors are the AGCO-only MT845B and MT845C.
Within the base MTC845/MT845 generation, changes were incremental: running production moved through BBP2, BBP3, and BBP4 serial-prefix updates from 2002 into 2004 on the same C12 block and track options throughout. The bigger jumps came after Caterpillar exited ag-tractor retail: AGCO's MT845B (2006-2008) stepped up to the larger-displacement Cat C15 ACERT for roughly 400 hp, then the MT845C (2008-2016) kept the C15 ACERT but raised gross output to about 440 hp. AGCO eventually retired the '845' number entirely when it reengineered the MT800 series around MAN engines and a stepless CVT transmission. In the used and parts market, the Cat-badged MTC845 stands out as the last Challenger track tractor carrying Caterpillar's own warranty and parts-catalog lookup, even though its undercarriage and structure are shared AGCO/Camoplast hardware. Track belts, drive wheels, idlers, and midroller (bogie) wheels are the highest-turnover wear items, and buyers should expect engine and driveline wear parts to cross over with other C12-family Cat equipment.
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 MTC845 specifications
Engine
| Engine model | Caterpillar C12, 11.9 L (729 ci), 6-cylinder inline diesel, turbocharged |
| Bore x stroke | 130 x 150 mm (5.118 x 5.906 in) |
| Compression ratio | 16.0:1 |
| Rated engine speed | 2100 rpm |
| Gross power | 283.4 kW (380 hp) |
| PTO power (rated) | 233.4 kW (313 hp) at 1000 rpm PTO speed |
| PTO power (test) | 293.2 kW (393.14 hp), per tractor test data |
| Emissions tier | Not documented in available sources for this 2002-2004 production run — verify with dealer for era-specific certification |
Weights
| Base shipping/operating weight | 18,144 kg (40,000 lb) |
| Ballasted operating weight | Up to 22,680 kg (50,000 lb) with factory ballast |
| Maximum gross weight (fully ballasted) | Up to 27,216 kg (60,000 lb) |
| Ground pressure | Not published; varies with track width option (see Dimensions) — verify with dealer |
Dimensions
| Overall length | 675 cm (265.9 in) |
| Overall width (base track config) | 360 cm (142.1 in) |
| Height, top of cab | 350 cm (138.1 in) |
| Height, top of exhaust | 352 cm (138.7 in) |
| Wheelbase | 299 cm (118.1 in) |
| Ground clearance | 47 cm (18.7 in) |
| Track gauge, adjustable | 228 to 325 cm (90 to 128 in) |
| Track width options | 457 mm (18 in), 699 mm (27.5 in), 762 mm (30 in), or 914 mm (36 in) |
Performance
| Transmission | 16 forward / 4 reverse powershift, push-button control |
| Drawbar power (test) | 222.2 kW (297.93 hp) |
| PTO power (test) | 293.2 kW (393.14 hp); rated PTO 233.4 kW (313 hp) |
| Rear hitch (drawbar) lift capacity | 8,845 kg (19,500 lb) |
| Travel/transport speed | Not documented in available sources for this base generation — verify with dealer (later MT845B/C generations with different engines list faster transport speeds, not applicable to this machine) |
| Gradeability | Not published |
Service capacities (summary)
| Fuel tank | 1,154.4 L (305 US gal) standard; 1,249.6 L (330 US gal) optional |
| Hydraulic system | Closed-center, load-sensing, pressure- and flow-compensating; reservoir 264.9 L (70 US gal); system pressure 200 bar (2900 psi); pump flow 164.6 L/min (43.5 gpm) standard, 223.3 L/min (59 gpm) optional |
| Engine oil capacity | Not documented in accessible public sources — refer to Cat C12 engine service manual or dealer |
| Cooling system capacity | Not documented in accessible public sources — verify with dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
MTC845 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase and filter (Cat C-12, 11.9 L / 725 cu in, 6-cyl turbo diesel, 380 hp) | Not published in any available specification source for this tractor's specific oil-pan installation. Cat C-12 mobile/industrial applications generally run about 28-40 L (7.5-10.6 US gal) with filter depending on pan depth; confirm the tractor-specific figure against the OMM refill chart or a dealer. | Cat DEO (Diesel Engine Oil). Grade by ambient temperature per Cat's standard multigrade chart: SAE 15W-40 for normal/warm operation, SAE 10W-30 for cold-weather starts. |
| Cooling system | Not published in any available specification source for this model. Refer to the OMM refill capacities chart or a Cat/Challenger dealer for the exact fill volume. | Cat ELC (Extended Life Coolant), or an antifreeze/coolant meeting Cat's diesel engine coolant specification, mixed per the ambient-temperature chart in the OMM. |
| Fuel tank (standard) | 1154.4 L (305 US gal) standard. An optional center tank raises capacity to about 1249 L (330 US gal). | No. 2-D diesel fuel meeting the engine's emissions-tier fuel spec for the model year; this generation predates ultra-low-sulfur mandates, so low-sulfur diesel of the period applies. |
| Transmission and hydraulic system (shared reservoir - Cat Full Powershift, 16F/4R, closed-center load-sensing hydraulics) | 264.9 L (70 US gal) total system fill. This spans the combined transmission/hydraulic circuit; no separate transmission-only figure is published. | Sources vary on the exact factory-fill grade for this tractor line. Cat's broader fluid family for powershift transmissions, wet brakes, differentials, final drives and hydraulics in this class is Cat TDTO meeting the Cat TO-4 spec. Earlier tractors in this Challenger lineage were factory-filled with a straight SAE 10W hydraulic-transmission oil rather than the 15W-30 common on competing brands of the era. Verify the exact grade called out in the OMM for this serial range. |
| Final drives (each side) | Not published in available specification sources. On this design the final drives may draw from the shared transmission/hydraulic system rather than carry their own refill figure; verify with the OMM. | Same fluid family as the transmission/hydraulic system - Cat TDTO (Cat TO-4) or equivalent, if the OMM calls out a separate compartment. |
| Grease (all grease fittings, undercarriage and pins) | Spec only, no reservoir capacity. | Cat multipurpose chassis grease, NLGI 2 grade (Cat Advanced 3Moly Grease or an equivalent Cat MPGM-spec grease). |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar MTC845 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
| Every 6,000 h |
|
Servicing the MTC845 beyond the schedule
Predictive Maintenance & Fluid Analysis
Run scheduled oil sampling on the C12's mechanical unit-injector diesel to catch injector and pump wear before it shows up as a hard start or smoke. Because the closed-center load-sensing hydraulic system powers steering, the 16-speed powershift clutches, and track tensioning off one circuit, a hydraulic oil sample at every filter change flags contamination early. Pull a coolant sample alongside engine oil sampling; the C12 block is sensitive to additive depletion if extended-life coolant chemistry drifts out of range.
Corrective & Common Repairs
Rubber-coated midroller (bogie) wheels on the MobilTrac undercarriage are the most common failure point, especially on machines roaded at speed; watch for delamination and consider poly-faced wheels as a fix. Track tensioner leak-down from the hydraulic tensioning circuit shows up as a loose, slapping belt and needs the circuit bled and recharged. Powershift clutch packs take a beating under heavy pulling and frequent direction reversal, and turbocharger or aftercooler fouling on the C12 shows up as falling boost and rising exhaust temperature.
Overhaul & Rebuild Points
Plan a valve lash and injector inspection on the C12 by mid-life hours, since the mechanical unit-injector fuel system drifts out of adjustment gradually rather than failing outright. Turbocharger and aftercooler core overhaul usually falls in the same window. Undercarriage rebuild is the other big-ticket item: front idler, drive wheel, and midroller wear eventually calls for a full track-and-roller-frame rebuild rather than piecemeal replacement. Powershift clutch packs and final drives are the remaining wear points to budget for on a high-hour machine.
Seasonal & Environment Servicing
Cold starts on the C12 diesel need healthy batteries and a working block heater; mechanical unit-injector engines of this era are less forgiving of weak cranking than later common-rail engines. Rubber track tension shifts with temperature, so recheck and adjust tensioning going into and out of winter. Heavy tillage and planting seasons load the air filter fast in dusty fields, so shorten the primary-element inspection interval during peak work. Before off-season storage, de-tension the tracks to avoid flat-spotting and stabilize the fuel.
MTC845 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 1R-0762 | Filter As-Fuel | Fuel system service | Check fitment → |
| 161-1705 | Sensor As-Pressure | Lubrication service | Check fitment → |
| 111-2645 | Valve-Pump Bypass | Lubrication service | Check fitment → |
| 1R-0716 | Filter As-Engine Oil | 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.
MTC845 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| D101 | Armrest control module connection not detected by the console. | Loose or corroded connector under the operator armrest, or a wiring break between the armrest module and the main harness. | Check and reseat the wiring connector under the armrest before further diagnosis. |
| D129 | Battery voltage reading above the normal charging range. | Faulty voltage regulator or an alternator overcharging the electrical system. | Check charging system output and battery condition; have the dealer verify the regulator. |
| D130 | Battery voltage reading below the normal range. | Weak or discharged battery, a loose terminal connection, or a charging system fault. | Check battery terminals for a tight, clean connection and test battery state of charge. |
| D154 | Loss of CAN bus communication between the tractor control system and the instrument cluster. | Damaged CAN bus wiring, a poor connector, or a failed control module on the network. | Cycle the key and check harness connectors at the dash; if the fault repeats have the dealer trace the CAN bus. |
| E100 | Engine oil pressure reading outside the expected range. | Low oil level, a failing oil pressure sensor, or an internal lubrication fault. | Shut down and check engine oil level right away before restarting; contact the dealer if the level is correct. |
| E110 | Engine coolant temperature reading outside the expected range. | Low coolant level, a blocked radiator or screen, or a faulty coolant temperature sensor. | Check coolant level and clean radiator screens of debris before continuing operation. |
| E9131 | Fuel injector driver circuit fault, flagged per cylinder (other codes in the same series cover the remaining cylinders). | Faulty injector solenoid, damaged injector wiring, or an ECM driver fault. | Have the dealer check injector wiring and run an injector cutout test before replacing any component. |
| T4161 / T4162 | Transmission range-shift solenoid valve fault, low-range or high-range circuit. | Faulty range solenoid, a blocked valve, or a wiring/connector fault in the transmission harness. | Expect the transmission to default to a protected mode; have the dealer check the range solenoid and harness before returning to normal operation. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
MTC845 attachments & work tools
Drawbar
This class offered a standard wide-swinging roller drawbar (about 32 degrees of swing each way), an optional hydraulic-controlled drawbar that dampens or locks position when unpinned, and a free-swinging drawbar bundled with the steerable 3-point hitch (about 28 degrees of swing). Rated vertical load varies by configuration, typically 5,000-7,000 kg (11,000-15,000 lb) for this size class.
Three-point hitch
An exclusive steerable 3-point hitch was offered, rated at roughly 8,845 kg (19,500 lb) lift capacity; it improves steering and row correction in narrow-gauge work by moving somewhat independently of the tractor's differential steering. Hitch class and capacity vary by series/configuration.
PTO
Rear PTO was a factory option (not standard) on this class, engaged through the tractor's electronic management console. Output runs on a 44mm (1.75 in) shaft at roughly 1000 rpm, matching typical row-crop and tillage implement inputs.
Hydraulic remote valves
Standard hydraulics run four rear remote valves off a closed-center, load-sensing pump rated about 43.5 gpm (roughly 165 L/min). A high-flow pump option near 59 gpm (about 223 L/min) is available and is needed to add a fifth and sixth remote valve for implements with multiple hydraulic functions, such as air seeders, planters, and folding tillage tools.
Track/belt undercarriage
Track gauge adjusts across a wide range (roughly 2.3-3.25 m / 90-128 in) to match row spacing. Rubber belts are offered from about 457mm (18 in) up to 914mm (36 in) wide across different tread styles, with matching idler, mid-roller, and drive-wheel sizing; wider belts add flotation for tillage/planting work, narrower belts suit tighter row-crop gauges.
Ballast/weight kits
Front and chassis ballast weight kits are offered to rebalance the tractor and improve headland handling and drawbar-pull traction when running heavy drawn or mounted implements. Weight selection varies with the class of implement being pulled.
All MTC845 assemblies by section
Every catalogued assembly group for the Caterpillar MTC845. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Air Inlet And Exhaust System
205-1231 Elbow Gp-Air Inlet
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 4 |
| 10***25 | Gasket; (Air Inlet Manifold)(Intake Manifold Inlet) | 1 |
| 10***03 | Elbow; (Air Inlet) | 1 |
205-1232 Elbow Gp-Air Inlet
| 10***25 | Gasket; (Air Inlet Manifold)(Intake Manifold Inlet) | 1 |
| 10***03 | Elbow; (Air Inlet) | 1 |
| 20***32 | Elbow Group-Air Inlet | 1 |
114-1904 Lines Gp-Air
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 11***04 | Lines Group-Air | 1 |
| 5H***04 | Packing,Preformed Elbow Part Of Kit P/N 5r***26 | 2 |
126-0076 Lines Gp-Air -Turbocharger Outlet
| 12***73 | Elbow | 1 |
| 12***76 | Lines Group-Air; -Turbocharger Outlet | 1 |
| 12***29 | Clamp; (V-Band) | 1 |
117-2688 Manifold Gp-Exhaust
| 10***13 | Gasket | 6 |
| 11***89 | Manifold-Exhaust; (Center) | 1 |
| 11***15 | Stud-Taperlock; (M10x85-mm Oal) | 12 |
135-6552 Manifold Gp-Exhaust
| 10***54 | Manifold-Exhaust; (Center) | 1 |
| 10***08 | Manifold-Exhaust; (End)(End) | 2 |
| 10***92 | Stud-Taperlock; (3/8-16x3.93in) | 11 |
116-5405 Manifold Gp-Inlet
| 11***05 | Manifold Group-Inlet | 1 |
| 11***06 | Manifold; (Inlet) | 1 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 1 |
192-3032 Turbocharger Gp
| 11***87 | Bolt; (M6x0.04x10.4-mm)(6mm X 0.04 Thd) | 1 |
| 13***75 | Clamp As; (Service Repair) | 1 |
| 16***58 | Clip-Hose | 1 |
191-5108 Turbocharger Gp
| 11***87 | Bolt; (M6x0.04x10.4-mm)(6mm X 0.04 Thd) | 1 |
| 12***53 | Clamp As; (Turbine) | 1 |
| 16***58 | Clip-Hose | 1 |
193-3931 Turbocharger Gp
| 19***08 | Turbocharger Group | 1 |
| 19***31 | Turbocharger Group | 1 |
| 1S***95 | Gasket-Turbocharger To Manifold; Gasket Turbocharger To Manifold | 1 |
191-2248 Turbocharger Gp
| 19***48 | Turbocharger Group | 1 |
| 19***32 | Turbocharger Group | 1 |
| 1S***95 | Gasket-Turbocharger To Manifold; Gasket Turbocharger To Manifold | 1 |
Basic Engine
133-9907 Adapter Gp-Pump Drive
| 13***06 | Adapter | 1 |
| 13***07 | Adapter Group-Pump Drive; -Remote | 1 |
| 1B***67 | Ball Bearing | 2 |
122-1248 Base Gp-Valve Cover & Inj Harn
| 10***18 | Clip | 3 |
| 10***19 | Clip | 3 |
| 10***34 | Kit-Receptacle; (12-Pin)(Valve Cover & Inj Harness) | 1 |
138-2546 Bracket Gp-Support
| 13***46 | Bracket Group-Support; -Refrigerant Compressor | 1 |
| 16***80 | Bracket | 1 |
| 6V***22 | Bolt (M10x1.50x35mm) | 2 |
185-9699 Camshaft Gp
| 10***89 | Cover | 1 |
| 11***36 | Screw-Flat Head; (5/16-18x0.875-In) | 3 |
| 18***99 | Camshaft Group; (Single) | 1 |
171-3062 Camshaft Gp
| 11***59 | Cover | 1 |
| 12***11 | Journal | 1 |
| 13***68 | Gasket; (Camshaft Cover) | 1 |
107-6736 Cover Gp-Cylinder Block
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 10***36 | Cover Group-Cylinder Block; -Remote | 1 |
| 4N***99 | Gasket; (Oil Drain) | 1 |
107-6737 Cover Gp-Cylinder Block
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 10***37 | Cover Group-Cylinder Block; -Remote | 1 |
| 4N***99 | Gasket; (Oil Drain) | 1 |
115-2985 Cover Gp-Cylinder Block
| 11***85 | Cover Group-Cylinder Block | 1 |
| 4P***87 | Cover | 1 |
| 6V***50 | Seal-O-Ring (Id=39.34mm) | 1 |
212-9551 Cover Gp-Cylinder Block
| 06***55 | Seal-O-Ring (Id=47.22mm) | 2 |
| 21***51 | Cover Group-Cylinder Block | 1 |
| 6V***17 | Bolt; (M8x1.25x20-mm)(At Location Y) | 4 |
192-2042 Cover Gp-Engine
| 12***81 | Seal-Integral; (Air Compressor Mounting) | 1 |
| 14***14 | Cover | 1 |
| 16***87 | Hose-Fumes Disposal | 1 |
159-6159 Cover Gp-Front Housing
| 03***55 | Locknut; (5/16-18-Thd)(Marked X) | 2 |
| 15***59 | Cover Group-Front Housing | 1 |
| 16***71 | Seal | 1 |
235-8781 Cover Gp-Front Housing
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 10***32 | Gasket | 1 |
| 18***09 | Plug As; (High Temperature) | 1 |
209-6669 Cover Gp-Front Housing
| 12***81 | Seal-Integral; (Air Compressor Mounting) | 1 |
| 14***14 | Cover | 1 |
| 20***69 | Cover Group-Front Housing; (Air Compressor) | 1 |
150-3135 Cover Gp-Valve Mechanism
| 14***78 | Grommet | 1 |
| 15***57 | Cover-Valve Mech | 1 |
| 15***35 | Cover Group-Valve Mechanism | 1 |
159-9343 Cover Gp-Valve Mechanism
| 14***78 | Grommet | 1 |
| 15***43 | Cover Group-Valve Mechanism | 1 |
| 17***39 | Cover As-Valve; (Breather) | 1 |
187-3316 Cover Gp-Valve Mechanism
| 15***41 | Cover Group-Valve Mechanism | 2 |
| 15***43 | Cover Group-Valve Mechanism | 1 |
| 18***16 | Cover Group-Valve Mechanism | 1 |
345-9238 Cover Gp-Valve Mechanism
| 15***35 | Cover Group-Valve Mechanism | 2 |
| 18***26 | Cover Group-Valve Mechanism | 1 |
| 34***38 | Cover Group-Valve Mechanism | 1 |
150-3141 Cover Gp-Valve Mechanism
| 14***76 | Cover-Valve Mechanism | 1 |
| 14***78 | Grommet | 1 |
| 15***41 | Cover Group-Valve Mechanism | 1 |
187-1326 Cover Gp-Valve Mechanism
| 14***78 | Grommet | 1 |
| 18***25 | Cover As-Valve | 1 |
| 18***26 | Cover Group-Valve Mechanism | 1 |
160-3912 Crankshaft Gp
| 16***99 | Crankshaft As | 1 |
| 16***12 | Crankshaft Group | 1 |
| 16***20 | Gear-Crankshaft; (80-Teeth) | 1 |
160-3913 Crankshaft Gp
| 15***32 | Crankshaft As | 1 |
| 16***13 | Crankshaft Group | 1 |
| 16***20 | Gear-Crankshaft; (80-Teeth) | 1 |
132-3212 Crankshaft Gp
| 12***82 | Bearing-Main; (0.51-mm Us)(.51mm U.S.) | 0 |
| 12***83 | Bearing-Main; (0.76-mm Us)(.76mm U.S.) | 0 |
| 12***84 | Bearing-Main; (0.51-mm Os)(.51mm O.S.) | 0 |
267-4631 Cylinder Block As
| 16***81 | Cap-Crankshaft Bearing | 7 |
| 16***83 | Bolt; (7/8-14x7.5-In) | 14 |
| 26***31 | Cylinder Block As | 1 |
204-3449 Cylinder Block As
| 10***60 | Seal; (Liner) | 6 |
| 16***63 | Shim-Liner; -Cylinder | 0 |
| 16***64 | Shim-Liner; -Cylinder | 0 |
155-0056 Cylinder Block As
| 11***20 | Seal-O-Ring; (Mid-Liner) | 6 |
| 14***17 | Seal-O-Ring; (140.20mm Id) | 6 |
| 14***72 | Seal-Liner; (Coolant) | 6 |
200-2054 Cylinder Block As
| 11***66 | Cap; (Bearing) | 7 |
| 17***54 | Bolt-Hex Head; (M16x160mm) | 14 |
| 20***54 | Cylinder Block As | 1 |
155-0741 Cylinder Block As
| 11***20 | Seal-O-Ring; (Mid-Liner) | 6 |
| 13***17 | Seal D-Ring | 6 |
| 13***81 | Liner-Cylinder Block | 6 |
267-4632 Cylinder Block As
| 11***20 | Seal-O-Ring; (Mid-Liner) | 6 |
| 14***17 | Seal-O-Ring; (140.20mm Id) | 6 |
| 14***72 | Seal-Liner; (Coolant) | 6 |
301-3016 Cylinder Block As
| 11***20 | Seal-O-Ring; (Mid-Liner) | 6 |
| 13***17 | Seal D-Ring | 6 |
| 13***81 | Liner-Cylinder Block | 6 |
234-9709 Cylinder Block As
| 11***20 | Seal-O-Ring; (Mid-Liner) | 6 |
| 13***17 | Seal D-Ring | 6 |
| 13***81 | Liner-Cylinder Block | 6 |
115-2983 Cylinder Block Gp
| 11***83 | Cylinder Block Group | 1 |
| 1N***99 | Plug-O-Ring; (Straight Thread) | 2 |
| 20***49 | Cylinder Block As | 1 |
155-0740 Cylinder Block Gp
| 10***99 | Plug | 2 |
| 11***27 | Seal-O-Ring; (19.18mm Id) | 1 |
| 14***29 | Seal; (Drainback) | 1 |
155-0057 Cylinder Block Gp
| 10***99 | Plug | 2 |
| 11***27 | Seal-O-Ring; (19.18mm Id) | 1 |
| 14***29 | Seal; (Drainback) | 1 |
234-5998 Cylinder Block Gp
| 10***99 | Plug | 2 |
| 14***29 | Seal; (Drainback) | 1 |
| 1S***40 | Dowel; (30.23 mm X 9.37 mm) | 1 |
234-5997 Cylinder Block Gp
| 11***20 | Seal-O-Ring; (Mid-Liner) | 6 |
| 14***17 | Seal-O-Ring; (140.20mm Id) | 6 |
| 14***72 | Seal-Liner; (Coolant) | 6 |
234-9702 Cylinder Block Gp
| 10***99 | Plug | 2 |
| 14***29 | Seal; (Drainback) | 1 |
| 1S***40 | Dowel; (30.23 mm X 9.37 mm) | 1 |
179-9459 Cylinder Head As
| 11***02 | Sleeve; (Injector) | 6 |
| 13***06 | Insert-Valve Seat; (Inlet)(Standard) | 12 |
| 14***52 | Insert-Valve Seat; (0.508-mm Os Od)(0.508-mm Os Od) | 12 |
223-7263 Cylinder Head As
| 12***47 | Guide-Valve; (0.51-mm Os)(Standard) | 0 |
| 12***75 | Guide-Valve; (Standard) | 24 |
| 12***12 | Guide-Valve; (0.13-mm Os)(Standard) | 0 |
243-0943 Cylinder Head As
| 15***82 | Insert-Valve Seat; (Exhaust)(Standard) | 12 |
| 16***42 | Insert-Valve Seat; (0.76-mm Os Od, Exhaust)(Standard) | 0 |
| 16***43 | Insert-Valve Seat; (0.76-mm Os Od, Inlet) | 0 |
281-1640 Cylinder Head As
| 12***47 | Guide-Valve; (0.51-mm Os)(Standard) | 0 |
| 12***75 | Guide-Valve; (Standard) | 24 |
| 12***12 | Guide-Valve; (0.13-mm Os)(Standard) | 0 |
243-6741 Cylinder Head As
| 12***47 | Guide-Valve; (0.51-mm Os)(Standard) | 0 |
| 12***75 | Guide-Valve; (Standard) | 24 |
| 12***12 | Guide-Valve; (0.13-mm Os)(Standard) | 0 |
263-5055 Cylinder Head Gp
| 15***24 | Valve; (Exhaust) | 12 |
| 16***78 | Seal-Valve Stem; (Exhaust) | 24 |
| 18***01 | Rotocoil Assem. | 24 |
234-9185 Cylinder Head Gp
| 10***73 | Fastener Group-Cylinder Head; (Marked X) | 10 |
| 12***54 | Bolt-12 Point Head; (3/4-16x8.5-In) | 1 |
| 12***55 | Bolt-12 Point Head; (3/4-16x7.638-In) | 1 |
116-1085 Cylinder Head Gp
| 11***85 | Cylinder Head Group | 1 |
| 14***49 | Cylinder Head Group | 1 |
| 18***07 | Gasket As-Cylinder Head | 1 |
148-2149 Cylinder Head Gp
| 10***50 | Guide-Valve; (Standard) | 24 |
| 13***29 | Valve; (Exhaust) | 12 |
| 14***49 | Cylinder Head Group | 1 |
223-9250 Cylinder Head Gp
| 15***23 | Valve; (Inlet) | 12 |
| 15***24 | Valve; (Exhaust) | 12 |
| 16***78 | Seal-Valve Stem; (Exhaust) | 24 |
191-8423 Cylinder Head Gp
| 12***54 | Bolt-12 Point Head; (3/4-16x8.5-In) | 10 |
| 12***55 | Bolt-12 Point Head; (3/4-16x7.638-In) | 16 |
| 18***96 | Cylinder Head Group | 1 |
176-9918 Cylinder Head Gp
| 12***47 | Guide-Valve; (0.51-mm Os)(Standard) | 0 |
| 12***75 | Guide-Valve; (Standard) | 24 |
| 12***12 | Guide-Valve; (0.13-mm Os)(Standard) | 0 |
183-5296 Cylinder Head Gp
| 15***24 | Valve; (Exhaust) | 12 |
| 16***78 | Seal-Valve Stem; (Exhaust) | 24 |
| 17***18 | Cylinder Head Group | 1 |
192-8982 Damper & Pulley Gp
| 16***25 | Damper Assem. | 1 |
| 17***92 | Adapter | 1 |
| 19***82 | Damper & Pulley Group | 1 |
193-2261 Damper & Pulley Gp
| 14***71 | Bolt; (5/8-18x9-In) | 6 |
| 16***26 | Damper Assem. | 1 |
| 19***61 | Damper & Pulley Group | 1 |
6i-3638 Drive Gp-Pump
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 3 |
| 13***07 | Adapter Group-Pump Drive; -Remote | 1 |
| 5M***94 | Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler | 4 |
116-1083 Fastener Gp-Cylinder Head
| 11***83 | Fastener Group-Cylinder Head; (Cylinder Head) | 1 |
| 12***84 | Bolt; (Hex Head) (M16x2x160mm) | 26 |
| 2S***58 | Washer-Hard; (17x29x3-mm Thk)(Engine Brake) | 26 |
4p-6846 Fastener Gp-Front Housing
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 2 |
| 4P***46 | Fastener Group-Front Housing; -Remote | 1 |
| 5M***94 | Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler | 2 |
138-2539 Fastener Gp-Front Housing
| 13***39 | Fastener Group-Front Housing | 1 |
| 6V***49 | Nut-Hard; (M12 X 1.75) | 2 |
| 7D***49 | Washer (Flywheel Counter Balance Weight) | 2 |
204-5024 Fastener Gp-Front Housing
| 1F***58 | Nut-Full; (1/2-13-Thd)(Air Lines) | 2 |
| 20***48 | Stud-Taperlock | 2 |
| 20***24 | Fastener Group-Front Housing | 1 |
108-9382 Fastener Gp-Front Housing
| 10***82 | Fastener Group-Front Housing | 1 |
| 14***68 | Stud-Taperlock | 2 |
| 1F***58 | Nut-Full; (1/2-13-Thd)(Air Lines) | 2 |
112-2644 Fastener Gp-Front Housing
| 11***44 | Fastener Group-Front Housing | 1 |
| 14***67 | Stud-Taperlock, Plug,Female | 2 |
| 1F***58 | Nut-Full; (1/2-13-Thd)(Air Lines) | 2 |
176-7007 Fastener Gp-Oil Pan
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 24 |
| 17***07 | Fastener Group-Oil Pan | 1 |
| 24***14 | Sleeve As | 24 |
109-1657 Fastener Gp-Valve Mechanism
| 10***57 | Fastener Group-Valve Mechanism | 1 |
| 5J***94 | Screw,Cap,Socket He Manifold Mtg | 12 |
| 8L***13 | Strap-Cable(Tie 5.50" Long) | 6 |
154-6189 Flywheel Gp
| 0S***76 | Bolt 5.08 cm(2 In.) Long | 12 |
| 13***76 | Flywheel As | 1 |
| 15***89 | Flywheel Group | 1 |
102-3596 Flywheel Gp
| 10***96 | Flywheel Group | 1 |
| 16***24 | Flywheel As | 1 |
| 4N***14 | Gear; (113-Teeth)(Flywheel Starter) | 1 |
204-9316 Gear Gp-Camshaft
| 10***26 | Dowel | 1 |
| 20***16 | Gear Group-Camshaft | 1 |
| 9X***72 | Bolt-Locking; (3/8-16x0.875-In) | 16 |
117-2750 Gear Gp-Front
| 11***50 | Gear Group-Front | 1 |
| 13***83 | Shaft | 1 |
| 13***86 | Gear As; (Idler) (71 Teeth) | 1 |
208-9490 Gear Gp-Front
| 03***85 | Bolt-12 Point Hd-Engine Flywheel To | 6 |
| 0S***71 | Screw,Cap,Hexagon; Tube Assembly To Turbocharger And Elbow Mounting | 1 |
| 10***68 | Bearing-Sleeve | 1 |
205-1230 Housing Gp-Flywheel
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 2 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 1 |
| 14***68 | Seal-Crankshaft; (Rear)(Flywheel Housing) | 1 |
117-2775 Housing Gp-Flywheel
| 06***55 | Seal-O-Ring (Id=47.22mm) | 1 |
| 11***75 | Housing Group-Flywheel | 1 |
| 14***73 | Housing-Flywheel, Threaded Tie-Rod, Threaded Tie-Rod; Replaces 421694a1 | 1 |
159-8621 Housing Gp-Front
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 1 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 11 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 2 |
212-8137 Housing Gp-Front
| 06***55 | Seal-O-Ring (Id=47.22mm) | 1 |
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 1 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 11 |
133-7075 Housing Gp-Front
| 11***24 | Gear; (Pump Drive) (34 Teeth) | 1 |
| 13***75 | Housing Group-Front | 1 |
| 16***66 | Seal Group-Crankshaft; (Front) | 1 |
192-1563 Idler Gp-Belt -Alternator, Refrigerant Compressor
| 14***11 | Pulley As-Idler | 1 |
| 14***01 | Cover-Dust; (Rear) | 1 |
| 15***98 | Spacer; (10.4x38.1x20-mm Thk) | 1 |
148-2063 Lifter Gp-Valve -Mechanism
| 0L***26 | Plug -13mm(.512 In.) Outside Dia. | 2 |
| 12***93 | Dowel | 1 |
| 14***63 | Lifter Group-Valve; -Mechanism | 1 |
111-2088 Lifting Gp-Engine
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 8 |
| 10***85 | Eye-Lifting | 1 |
| 11***88 | Lifting Group-Engine; (Rear) | 1 |
112-2418 Lifting Gp-Engine
| 0S***95 | Bolt 1.25 In. (31.75 mm) Long Guard Assemblies To Radiator Guard | 4 |
| 10***86 | Eye-Lifting | 1 |
| 11***18 | Lifting Group-Engine | 1 |
117-2748 Lifting Gp-Engine
| 11***05 | Plate; (Lifting Eye) | 2 |
| 11***48 | Lifting Group-Engine | 1 |
| 5P***45 | Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate) | 6 |
190-0009 Mechanism Gp-Fuel Pump & Valve
| 19***09 | Mechanism Group-Fuel Pump & Valve | 1 |
| 27***29 | Rocker Arm Group | 3 |
| 6I***58 | Bridge-Valve | 12 |
148-7482 Mechanism Gp-Fuel Pump & Valve
| 14***82 | Mechanism Group-Fuel Pump & Valve | 1 |
| 19***98 | Rocker Arm Group | 3 |
| 6I***58 | Bridge-Valve | 12 |
252-5557 Mounting Gp-Belt Tensioner
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 4 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 2 |
| 0S***08 | Bolt-Support To Starting Engine Timing Gear Housing | 2 |
197-7433 Mounting Gp-Belt Tensioner
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 4 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 4 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 3 |
197-7432 Mounting Gp-Belt Tensioner
| 14***01 | Cover-Dust; (Rear) | 1 |
| 15***00 | Bolt; (M10x1.5x54.25-mm) | 2 |
| 16***58 | Cover; (Dust) | 1 |
243-3014 Mounting Gp-Belt Tensioner
| 15***00 | Bolt; (M10x1.5x54.25-mm) | 1 |
| 16***58 | Cover; (Dust) | 1 |
| 17***98 | Pulley As-Idler; (8-Groove) | 2 |
138-2550 Mounting Gp-Fan Drive
| 12***64 | Stud; (M12x1.75x86.3-mm Oal) | 2 |
| 13***50 | Mounting Group-Fan Drive; (Short) | 1 |
| 5R***37 | Washer; (Seal) (1.27mm Thk) | 2 |
116-5408 Mounting Gp-Valve Mechanism
| 11***83 | Fastener Group-Cylinder Head; (Cylinder Head) | 1 |
| 11***08 | Mounting Group-Valve Mechanism | 1 |
| 17***68 | Bridge As-Valve; (Intake) | 12 |
196-2111 Pan Gp-Oil
| 06***58 | Seal-O-Ring; (Oil Pan Drain Plug) | 1 |
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 3 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 4 |
250-1884 Pan Gp-Oil
| 06***58 | Seal-O-Ring; (Oil Pan Drain Plug) | 2 |
| 10***08 | Gasket; (Oil Pan) | 1 |
| 12***57 | Bell As; (Suction) | 1 |
126-0144 Pan Gp-Oil -Engine
| 06***58 | Seal-O-Ring; (Oil Pan Drain Plug) | 2 |
| 10***08 | Gasket; (Oil Pan) | 1 |
| 12***57 | Bell As; (Suction) | 1 |
134-3071 Piston & Rod Gp
| 13***71 | Piston & Rod Group | 1 |
| 13***05 | Ring-Piston; (Oil Control) | 1 |
| 14***30 | Ring-Piston; (Intermediate) | 1 |
130-0863 Piston & Rod Gp
| 11***99 | Plug-Pin | 2 |
| 11***16 | Rod Assem. | 1 |
| 11***72 | Bearing-Connecting Rod | 1 |
176-5745 Piston & Rod Gp
| 13***63 | Skirt-Piston | 1 |
| 13***61 | Ring-Piston; (Top)(Top) | 1 |
| 15***25 | Bolt; (7/16-14-2a-Thd) | 1 |
247-8211 Plug Gp-Cylinder Block
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 13***27 | Seal-O-Ring; (19.18mm Id Base Side) | 1 |
| 18***09 | Plug As; (High Temperature) | 1 |
191-6520 Plug Gp-Cylinder Block
| 19***20 | Plug Group-Cylinder Block | 1 |
| 21***66 | Seal-O-Ring; (Engine Oil) | 1 |
| 30***30 | Accessory Drive Pulley, Plug As | 1 |
235-1591 Plug Gp-Cylinder Block
| 03***53 | Seal-O-Ring; (08.92mm Id) | 1 |
| 13***27 | Seal-O-Ring; (19.18mm Id Base Side) | 1 |
| 18***09 | Plug As; (High Temperature) | 1 |
305-9196 Plug Gp-Cylinder Block
| 30***96 | Plug Group-Cylinder Block | 1 |
| 6V***65 | O-Ring - For Oil Fill Plug | 1 |
| 9S***10 | Plug; (Straight Thread O-Ring)(Cylinder Head) | 1 |
117-0185 Plug Gp-Cylinder Block
| 11***85 | Plug Group-Cylinder Block; (Cylinder Block) | 1 |
| 6V***89 | Seal-O-Ring (Id=19.18mm) | 1 |
| 9S***06 | Plug (Front 5 Stem Main Control Valve) | 1 |
234-9706 Plug Gp-Cylinder Block
| 23***06 | Plug Group-Cylinder Block; -Remote | 1 |
| 6V***48 | Seal--O-Ring--To Governor Drive Housing | 1 |
| 6V***09 | Seal-O-Ring (Id=16.36mm); (16.36-mm Id) | 1 |
138-2028 Plug Gp-Cylinder Block
| 13***28 | Plug Group-Cylinder Block | 1 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 1 |
| 6V***48 | Seal--O-Ring--To Governor Drive Housing | 1 |
117-0165 Plug Gp-Cylinder Block
| 11***65 | Plug Group-Cylinder Block; -Oil Gallery, End | 1 |
| 3B***23 | Core Plug--Flywheel Housing Pinion Shaft Hole | 1 |
110-1116 Plug Gp-Cylinder Head
| 11***16 | Plug Group-Cylinder Head | 1 |
| 7W***92 | Plug-Pipe; (1/2-14 Nptf Thd)(Use Without Air Compressor) | 1 |
234-9184 Plug Gp-Cylinder Head
| 18***08 | Plug As; (High Temperature) | 4 |
| 23***84 | Plug Group-Cylinder Head; -Remote | 1 |
| 6V***51 | Seal-O-Ring (Id=19.18mm) | 1 |
234-9775 Plug Gp-Engine
| 23***75 | Plug Group-Engine; -Remote | 1 |
| 6V***09 | Seal-O-Ring (Id=16.36mm); (16.36-mm Id) | 1 |
| 8L***86 | Seal-O-Ring (Id=16.36mm); (16.36-mm Id) | 1 |
234-9776 Plug Gp-Engine
| 23***76 | Plug Group-Engine; -Remote | 1 |
| 6V***09 | Seal-O-Ring (Id=16.36mm); (16.36-mm Id) | 1 |
| 9S***05 | Plug-O-Ring; (Straight Thread O-Ring) | 1 |
198-9898 Rocker Arm Gp
| 03***13 | Seal-O-Ring | 2 |
| 06***39 | Seal-O-Ring | 2 |
| 19***51 | Button; (24-mm Od) | 2 |
328-4236 Rocker Arm Gp
| 30***22 | Shaft As-Rocker Arm, Exhaust Manifold | 1 |
| 32***96 | Rocker Arm Group; -Intake | 4 |
| 32***36 | Rocker Arm Group; -Non-Brake | 1 |
278-1931 Rocker Arm Gp
| 06***39 | Seal-O-Ring | 2 |
| 19***51 | Button; (24-mm Od) | 2 |
| 19***69 | Screw-Arm Adjustment; (9/16-18x2-In) | 2 |
328-4238 Rocker Arm Gp
| 06***39 | Seal-O-Ring | 1 |
| 19***51 | Button; (24-mm Od) | 1 |
| 19***69 | Screw-Arm Adjustment; (9/16-18x2-In) | 1 |
320-2796 Rocker Arm Gp -Intake
| 25***21 | Button | 1 |
| 27***91 | Screw-Arm Adjustment; (3/8-24x1.20-In) | 1 |
| 27***17 | Nut; (3/8-24-Thd) | 1 |
278-1929 Rocker Arm Gp
| 06***39 | Seal-O-Ring | 2 |
| 19***51 | Button; (24-mm Od) | 2 |
| 19***69 | Screw-Arm Adjustment; (9/16-18x2-In) | 2 |
115-9397 Rocker Arm Gp
| 09***14 | Pin; (Spring) | 1 |
| 11***97 | Rocker Arm Group | 1 |
| 11***98 | Arm; (Valve Rocker) (Exhaust) | 2 |
116-1091 Seal Gp-Crankshaft
| 10***80 | Seal-O-Ring (Id=177.17mm) | 1 |
| 11***91 | Seal Group-Crankshaft; -Single Lip | 1 |
| 16***23 | Cover | 1 |
319-7401 Seal Gp-Crankshaft -Front
| 14***67 | Seal Group-Crankshaft; (Front) | 1 |
| 31***01 | Seal Group-Crankshaft; -Front | 1 |
193-7412 Support Gp-Engine
| 19***61 | Support As | 1 |
| 19***12 | Support Group-Engine | 1 |
| 5P***45 | Washer-Hard; (13.5x25.5x3-mm Thk)(Turbocharger Blanking Plate) | 8 |
193-7413 Support Gp-Engine
| 19***65 | Support As | 1 |
| 19***13 | Support Group-Engine | 1 |
| 2H***88 | Bolt- 12 cm(4.75 In.) Long-Location "F" | 8 |
117-2749 Valve Mechanism Gp -Engine
| 10***42 | Base-Valve Mechanism Cover | 1 |
| 10***67 | Pushrod; (Valve) | 12 |
| 10***68 | Pushrod-Injector | 6 |
Cooling System
115-2990 Cooler Gp-Engine Oil
| 06***40 | Seal-O-Ring (Id=37.69mm) | 2 |
| 10***25 | Gasket | 1 |
| 11***90 | Cooler Group-Engine Oil; (Engine Oil) | 1 |
117-2792 Fastener Gp-Oil Cooler -Engine
| 11***92 | Fastener Group-Oil Cooler; -Engine | 1 |
| 6V***17 | Bolt; (M8x1.25x30-mm)(Location Z) | 1 |
| 9M***74 | Washer-Hard; (8.8x16x2-mm Thk)(Hard) | 1 |
163-1628 Fastener Gp-Oil Cooler -Engine
| 16***28 | Fastener Group-Oil Cooler; -Engine | 1 |
| 17***99 | Stud; (3/8-16-Thd) | 1 |
| 5M***94 | Washer; Bracket To Tee, Bracket To Block, Tube As. To Tee, Tube As. To Oil Cooler | 1 |
109-2373 Fastener Gp-Water Pump
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 1 |
| 10***73 | Fastener Group-Water Pump; (Water Pump Cover) | 1 |
116-5456 Housing & Regulator Gp -Engine Coolant Temperature
| 11***56 | Housing & Regulator Group; -Engine Coolant Temperature | 1 |
| 11***00 | Housing As-Regulator | 1 |
| 12***11 | Stud; (M8x1.25-Thd)(M8x1.25 Thd Both Ends) | 4 |
116-5460 Lines Gp-Water -Bypass
| 10***08 | Flange | 1 |
| 10***95 | Tube | 1 |
| 11***60 | Lines Group-Water; -Bypass | 1 |
195-7999 Lines Gp-Water
| 0L***52 | Capscrew (3/8 - 16 Nc X 3 1/4 Gd8, Hex) | 5 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 3 |
| 0S***94 | Bolt (1 In. Long 3/8 In. Dia.); Plate Assembly To Support Assembly | 6 |
117-2783 Lines Gp-Water -Single Thermostat
| 11***56 | Housing & Regulator Group; -Engine Coolant Temperature | 1 |
| 11***83 | Lines Group-Water; -Single Thermostat | 1 |
| 11***97 | Gasket | 4 |
116-5446 Lines Gp-Water -Water Pump Inlet Elbow
| 10***35 | Gasket | 1 |
| 11***46 | Lines Group-Water; -Water Pump Inlet Elbow | 1 |
| 11***57 | Elbow-Water Pump | 1 |
117-2789 Plug Gp-Water Lines
| 11***89 | Plug Group-Water Lines; -Engine Oil Cooler | 1 |
| 6V***27 | Seal-O-Ring (Id=8.92mm) | 1 |
| 8T***67 | Plug-Pipe; (Oil Cooler Bonnet Drain) | 1 |
176-7000 Pump Gp-Water
| 10***10 | Gasket | 1 |
| 14***88 | Seal As; (Water Pump) | 1 |
| 17***95 | Cover-Pump | 1 |
161-5719 Pump Gp-Water
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 1 |
| 10***30 | Bearing As-Roller | 1 |
| 12***17 | Seal Group; (Water Pump) | 1 |
174-5986 Pump Gp-Water
| 10***77 | Seal-O-Ring; (100.97mm Id) | 1 |
| 12***72 | Seal-O-Ring (215.49mm Id) | 1 |
| 16***19 | Pump Group-Water | 1 |
117-2674 Pump Gp-Water
| 11***74 | Pump Group-Water | 1 |
| 17***00 | Pump Group-Water | 1 |
| 6V***21 | Bolt; (M8x1.25x80-mm) | 2 |
Electrical And Starting System
126-7631 Connection Gp-Electrical
| 12***31 | Connection Group-Electrical; (Cylinder Block Ground) | 1 |
| 12***49 | Stud; (3/8-16, 5/8-18x3.1-In) | 1 |
| 5P***47 | Washer (Bracket To Valve Support) | 1 |
159-9107 Connection Gp-Electrical -Cylinder Head Ground
| 15***07 | Connection Group-Electrical; -Cylinder Head Ground | 1 |
| 17***99 | Stud; (3/8-16-Thd) | 1 |
| 6V***01 | Nut; (3/8-16-Thd)(Plate To Rh And Lh Bracket As) | 1 |
124-2674 Connection Gp-Electrical
| 12***74 | Connection Group-Electrical; -Ground | 1 |
| 5C***61 | Nut (M8x1.25 Thd); (M8x1.25 Thd) | 1 |
| 6V***64 | Washer-Hard; (8.8x25.5x5-mm Thk) | 1 |
168-4490 Control & Mtg Gp-Engine Elek
| 16***90 | Control & Mtg Group-Engine Elek | 1 |
| 16***94 | Spacer; (8.5x12.7x54.1-mm) | 2 |
| 17***91 | Control Group-Engine Electronic | 1 |
191-5208 Control & Mtg Gp-Engine Elek
| 12***11 | Spacer; (3x15x17-mm Thk) | 1 |
| 15***96 | Support As | 1 |
| 15***98 | Support As | 1 |
210-0849 Control Gp-Engine Electronic
| 21***49 | Control Group-Engine Electronic | 1 |
| 24***04 | Control Group-Engine Electronic | 1 |
240-5304 Control Gp-Engine Electronic
| 18***72 | Screw-Pan Head; (No 8-32x9.52-mm)(Wax Coated) | 1 |
| 24***04 | Control Group-Engine Electronic | 1 |
| 7X***15 | Strap; (Grounding) | 1 |
322-3603 Control Gp-Engine Electronic
| 18***72 | Screw-Pan Head; (No 8-32x9.52-mm)(Wax Coated) | 1 |
| 32***03 | Control Group-Engine Electronic | 1 |
| 7X***15 | Strap; (Grounding) | 1 |
210-0848 Control Gp-Engine Electronic
| 18***72 | Screw-Pan Head; (No 8-32x9.52-mm)(Wax Coated) | 1 |
| 21***48 | Control Group-Engine Electronic | 1 |
| 7X***15 | Strap; (Grounding) | 1 |
178-3091 Control Gp-Engine Electronic
| 17***91 | Control Group-Engine Electronic | 1 |
| 21***48 | Control Group-Engine Electronic | 1 |
192-1623 Mounting Gp-Sensor
| 16***93 | Adapter | 1 |
| 19***23 | Mounting Group-Sensor | 1 |
| 1T***20 | Bolt-12 Point Head; (3/8-16x1.25-In) | 1 |
235-4557 Sensor Gp-Engine
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 1 |
| 11***82 | Seal-O-Ring; (16.36mm Id) | 1 |
| 13***11 | Sensor Group-Temperature; (Transmission Lubrication Oil) | 3 |
192-0883 Sensor Gp-Engine
| 00***17 | Elbow | 1 |
| 03***78 | Connector-Filtered Fuel To Adapter | 1 |
| 0S***91 | Screw,Cap,Hexagon Bearing Retainer; Part Of Kit P/N 1w***82 | 1 |
194-6725 Sensor Gp-Pressure
| 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 |
| 19***25 | Sensor Group-Pressure; -Engine Oil | 1 |
197-8393 Sensor Gp-Pressure
| 16***03 | Sensor Group-Pressure; (Turbocharger Inlet, Rh) | 1 |
| 19***93 | Sensor Group-Pressure; -Atmospheric | 1 |
| 21***68 | Seal-O-Ring; (11.89-mm Id) | 1 |
197-8395 Sensor Gp-Pressure
| 19***24 | Sensor Group-Pressure; -Air Inlet Manifold | 1 |
| 19***95 | Sensor Group-Pressure; -Air Inlet Manifold | 1 |
| 6V***48 | Seal--O-Ring--To Governor Drive Housing | 1 |
197-8394 Sensor Gp-Pressure
| 16***05 | Sensor As-Pressure; (Unfiltered Engine Oil) | 1 |
| 19***94 | Sensor Group-Pressure; -Engine Oil | 1 |
| 6V***48 | Seal--O-Ring--To Governor Drive Housing | 1 |
194-6724 Sensor Gp-Pressure
| 15***60 | Kit-Connecting Plug; (3-Pin)(Engine Sensor Wiring Harness) | 1 |
| 19***26 | Harness As-Sensor; (16-18 Ga Wire)(Engine Oil Temperature) | 3 |
| 19***24 | Sensor Group-Pressure; -Air Inlet Manifold | 1 |
194-6722 Sensor Gp-Pressure
| 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 |
| 19***22 | Sensor Group-Pressure; -Atmospheric Air | 1 |
197-8396 Sensor Gp-Speed
| 18***11 | Sensor Group-Speed; (Crankshaft Timing) | 1 |
| 19***96 | Sensor Group-Speed; -Timing, Crankshaft | 1 |
| 20***40 | Seal-O-Ring; (13.94mm Id) | 1 |
197-8397 Sensor Gp-Speed
| 18***01 | Sensor Group-Speed; (Camshaft Timing) | 1 |
| 19***97 | Sensor Group-Speed; -Timing, Camshaft | 1 |
| 20***40 | Seal-O-Ring; (13.94mm Id) | 1 |
197-8392 Sensor Gp-Temperature
| 13***45 | Pad; (Connector) | 1 |
| 19***92 | Sensor Group-Temperature; -Coolant, Water | 1 |
| 26***97 | Sensor Group-Temperature; (Air Inlet Manifold) | 1 |
197-8391 Sensor Gp-Temperature
| 13***45 | Pad; (Connector) | 1 |
| 19***91 | Sensor Group-Temperature; -Air Inlet Manifold | 1 |
| 26***97 | Sensor Group-Temperature; (Air Inlet Manifold) | 1 |
191-6130 Wiring Gp-Electronic Control
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 0S***76 | Bolt 5.08 cm(2 In.) Long | 2 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
171-1103 Wiring Gp-Engine
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
| 10***03 | Kit; (Receptacle) (3-Pin) (Includes Receptacle As & Wedge) | 1 |
| 13***89 | Clip; (Ladder) | 1 |
226-2312 Wiring Gp-Engine
| 0S***09 | Bolt (3/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 0S***76 | Bolt 5.08 cm(2 In.) Long | 2 |
| 10***02 | Kit-Receptacle; (2-Pin)(Engine Sensor Wiring Harness) | 1 |
117-2760 Wiring Gp-Unit Injector
| 11***60 | Wiring Group-Unit Injector | 1 |
| 2V***16 | Clip; (9.52mm Id) | 4 |
| 4P***37 | Harness Assembly-Wiring; (Unit Injector) | 1 |
Engine Arrangement
235-4673 Engine Ar-Complete
| 10***36 | Cover Group-Cylinder Block; -Remote | 1 |
| 10***37 | Cover Group-Cylinder Block; -Remote | 1 |
| 10***12 | Fitting Group-Quick Disconnect; -Fuel | 1 |
235-4672 Engine Ar-Complete
| 10***36 | Cover Group-Cylinder Block; -Remote | 1 |
| 10***37 | Cover Group-Cylinder Block; -Remote | 1 |
| 10***12 | Fitting Group-Quick Disconnect; -Fuel | 1 |
172-6946 Engine Ar-Complete
| 10***96 | Flywheel Group | 1 |
| 11***85 | Cover Group-Cylinder Block | 1 |
| 11***90 | Cooler Group-Engine Oil; (Engine Oil) | 1 |
172-6957 Engine Ar-Complete
| 10***36 | Cover Group-Cylinder Block; -Remote | 1 |
| 10***37 | Cover Group-Cylinder Block; -Remote | 1 |
| 10***12 | Fitting Group-Quick Disconnect; -Fuel | 1 |
172-6955 Engine Ar-Complete
| 10***36 | Cover Group-Cylinder Block; -Remote | 1 |
| 10***37 | Cover Group-Cylinder Block; -Remote | 1 |
| 10***12 | Fitting Group-Quick Disconnect; -Fuel | 1 |
172-6945 Engine Ar-Complete
| 10***96 | Flywheel Group | 1 |
| 11***85 | Cover Group-Cylinder Block | 1 |
| 11***90 | Cooler Group-Engine Oil; (Engine Oil) | 1 |
235-3451 Engine Ar-Core
| 12***48 | Base Group-Valve Cover & Inj Harn | 1 |
| 12***10 | Injector Group-Fuel | 6 |
| 13***71 | Piston & Rod Group | 6 |
185-6150 Engine Ar-Core
| 12***48 | Base Group-Valve Cover & Inj Harn | 1 |
| 12***10 | Injector Group-Fuel | 6 |
| 13***71 | Piston & Rod Group | 6 |
185-6147 Engine Ar-Core
| 11***83 | Cylinder Block Group | 1 |
| 11***85 | Cylinder Head Group | 1 |
| 11***05 | Manifold Group-Inlet | 1 |
185-6148 Engine Ar-Core
| 11***83 | Cylinder Block Group | 1 |
| 11***85 | Cylinder Head Group | 1 |
| 11***05 | Manifold Group-Inlet | 1 |
235-3450 Engine Ar-Core
| 12***48 | Base Group-Valve Cover & Inj Harn | 1 |
| 12***10 | Injector Group-Fuel | 6 |
| 14***82 | Mechanism Group-Fuel Pump & Valve | 1 |
185-6149 Engine Ar-Core
| 12***48 | Base Group-Valve Cover & Inj Harn | 1 |
| 12***10 | Injector Group-Fuel | 6 |
| 14***82 | Mechanism Group-Fuel Pump & Valve | 1 |
Fuel System
116-5436 Filter Gp-Fuel
| 11***36 | Filter Group-Fuel; -Secondary | 1 |
| 1R***62 | Filter As-Fuel; (Advanced Efficiency)(Secondary) | 1 |
213-5207 Fitting Gp-Fuel Lines
| 21***07 | Fitting Group-Fuel Lines | 1 |
| 3K***60 | Seal Pilot Manifold On; Seal To Boom Check Valve Drain | 1 |
| 6V***98 | Seal-O-Ring -Line From Gear Pump Output | 1 |
116-5434 Fitting Gp-Fuel Lines
| 11***34 | Fitting Group-Fuel Lines | 1 |
| 11***35 | Connector | 1 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 1 |
213-5208 Fitting Gp-Fuel Lines
| 03***42 | Seal-O-Ring; (11.89mm Id) | 1 |
| 21***08 | Fitting Group-Fuel Lines | 1 |
| 2R***06 | Connector Valve Assembly To; Connector- Tube Assembly To Logic Valve | 1 |
108-2312 Fitting Gp-Quick Disconnect
| 03***42 | Seal-O-Ring; (11.89mm Id) | 1 |
| 10***12 | Fitting Group-Quick Disconnect; -Fuel | 1 |
| 6V***52 | Cap-Dust; (Fuel Supply Tee Connection) | 1 |
128-8510 Injector Gp-Fuel
| 10***72 | Spacer; (9.8x15.85x37.6-mm Thk) | 1 |
| 12***10 | Injector Group-Fuel | 1 |
| 21***25 | Injector Group-Fuel | 1 |
170-5252 Injector Gp-Fuel
| 11***84 | Seal-O-Ring; (32.99mm Id) | 1 |
| 17***52 | Injector Group-Fuel | 1 |
| 9X***17 | Seal-O-Ring; (9.6mm Id) | 1 |
203-7685 Injector Gp-Fuel
| 11***84 | Seal-O-Ring; (32.99mm Id) | 1 |
| 20***85 | Injector Group-Fuel | 1 |
| 21***98 | Seal-O-Ring; (34.56mm Id) | 1 |
193-1561 Lines Gp-Fuel
| 03***47 | Elbow-Filtered Fuel From Based Assembly | 2 |
| 03***28 | Seal-O-Ring | 1 |
| 03***42 | Seal-O-Ring; (11.89mm Id) | 12 |
216-7887 Lines Gp-Fuel
| 03***47 | Elbow-Filtered Fuel From Based Assembly | 2 |
| 11***02 | Hose As | 1 |
| 11***16 | Hose Assem. | 1 |
189-0351 Pump Gp-Fuel Injection
| 15***01 | Bolt; (8x1.25x7-mm)(M8x1.25x70mm) | 1 |
| 17***52 | Injector Group-Fuel | 1 |
| 18***51 | Pump Group-Fuel Injection | 1 |
116-5411 Pump Gp-Fuel Priming -Hand
| 11***11 | Pump Group-Fuel Priming; -Hand | 1 |
| 13***41 | Pump Group-Fuel Priming; (Hand) | 1 |
| 1P***36 | Gasket; (Fuel Priming Pump)(Fuel Priming Pump) | 1 |
139-9095 Pump Gp-Fuel Transfer
| 0S***73 | Stud | 2 |
| 10***72 | Cover; (Hydraulic Pump Drive) | 1 |
| 10***69 | Seal-O-Ring; (Fuel Transfer Pump) | 2 |
145-1695 Pump Gp-Fuel Transfer
| 09***70 | Washer-Sealing | 2 |
| 10***69 | Seal-O-Ring; (Fuel Transfer Pump) | 1 |
| 14***95 | Pump Group-Fuel Transfer | 1 |
139-9094 Pump Gp-Fuel Transfer
| 10***69 | Seal-O-Ring; (Fuel Transfer Pump) | 2 |
| 13***03 | Cover-Pump | 1 |
| 13***94 | Pump Group-Fuel Transfer; -Remote | 1 |
233-6742 Valve Gp-Check -Fuel
| 23***42 | Valve Group-Check; -Fuel Filter | 1 |
| 28***25 | Valve Group-Check; -Fuel | 1 |
| 6V***89 | Seal-O-Ring (Id=19.18mm) | 1 |
281-2725 Valve Gp-Check -Fuel
| 03***33 | Seal-O-Ring; (12.42mm Id) | 1 |
| 28***25 | Valve Group-Check; -Fuel | 1 |
| 6V***23 | Ring; (Backup) (13.16mm Id) | 1 |
238-0296 Valve Gp-Check -Fuel
| 03***33 | Seal-O-Ring; (12.42mm Id) | 1 |
| 23***96 | Valve Group-Check; -Fuel Filter | 1 |
| 6V***23 | Ring; (Backup) (13.16mm Id) | 1 |
156-5783 Valve Gp-Check -Fuel
| 03***33 | Seal-O-Ring; (12.42mm Id) | 1 |
| 15***83 | Valve Group-Check; -Fuel | 1 |
| 6V***23 | Ring; (Backup) (13.16mm Id) | 1 |
Lubrication System
166-1329 Base Gp-Oil Filter -Engine
| 11***45 | Valve-Pump Bypass; (Engine Oil Filter) | 1 |
| 16***28 | Base Assem. | 1 |
| 16***29 | Base Group-Oil Filter; -Engine | 1 |
176-1363 Base Gp-Oil Filter -Engine
| 17***63 | Base Group-Oil Filter; -Engine | 1 |
| 2P***04 | Stud-Hollow; (1.5-16x1.339-In) | 1 |
| 9L***57 | Plug-Cup | 2 |
154-4327 Base Gp-Oil Filter -Engine
| 15***27 | Base Group-Oil Filter; -Engine | 1 |
| 17***63 | Base Group-Oil Filter; -Engine | 1 |
| 1P***67 | Plunger; (Engine Oil Cooler Relief Valve) | 2 |
209-6302 Base Gp-Oil Filter -Engine
| 06***40 | Seal-O-Ring (Id=37.69mm) | 2 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 4 |
| 15***27 | Base Group-Oil Filter; -Engine | 1 |
155-5005 Base Gp-Oil Filter
| 06***40 | Seal-O-Ring (Id=37.69mm) | 2 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 4 |
| 15***80 | Elbow | 1 |
117-2786 Cover Gp-Oil Filter Base -Engine
| 11***86 | Cover Group-Oil Filter Base; -Engine | 1 |
| 5S***34 | Seal-O-Ring; (97.79mm Id) | 1 |
| 7C***42 | Cover; (Filter Base) | 1 |
4n-2481 Fastener Gp-Oil Pump Mounting -Engine
| 0L***43 | Bolt 63.5 mm (3/8" X 2 1/2" -Cover Assembly To Fender | 2 |
| 0S***90 | Bolt; (3/8-16x2in)(Clip Thru Spacer To Bracket As) | 1 |
| 4N***81 | Fastener Group-Oil Pump Mounting; Oil Pump Mounting Fastener Group | 1 |
110-8876 Filler Gp-Engine Oil
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 2 |
| 10***99 | Tube As-Oil Filler; (Engine) | 1 |
| 11***76 | Filler Group-Engine Oil | 1 |
226-2313 Filler Gp-Engine Oil -Left Front
| 06***55 | Seal-O-Ring (Id=47.22mm) | 1 |
| 19***32 | Cap As; (Engine Oil Filler) | 1 |
| 22***58 | Tube-Oil Filler | 1 |
192-8993 Filler Gp-Engine Oil
| 06***55 | Seal-O-Ring (Id=47.22mm) | 1 |
| 19***93 | Filler Group-Engine Oil | 1 |
| 19***32 | Cap As; (Engine Oil Filler) | 1 |
192-8992 Filler Gp-Engine Oil
| 10***69 | Seal-O-Ring; (Fuel Transfer Pump) | 1 |
| 19***92 | Filler Group-Engine Oil | 1 |
| 19***53 | Bracket | 1 |
209-5777 Filter Gp-Engine Oil
| 0S***08 | Bolt-Support To Starting Engine Timing Gear Housing | 2 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 2 |
| 1A***29 | Bolt (1-1/8") Tube Assembly To Transfer Drive Case | 6 |
154-4325 Filter Gp-Engine Oil
| 0S***08 | Bolt-Support To Starting Engine Timing Gear Housing | 2 |
| 0S***19 | Bolt,Machine Gear Retaining Part Of Kit P/N 1w***46 | 2 |
| 12***72 | Stud-Mounting; (3/8-16x1.564-In)(3/8-16 Thd) | 2 |
117-2751 Filter Gp-Engine Oil
| 11***51 | Filter Group-Engine Oil | 1 |
| 13***45 | Bolt-Hex Head; (M10x1.50x30) | 6 |
| 16***29 | Base Group-Oil Filter; -Engine | 1 |
123-0783 Valve Gp-Fluid Sampling
| 12***83 | Fitting Group-Fuel Lines; -Fuel | 1 |
| 3J***07 | Seal Valve Assembly To; Seal- Tube Assembly To Logic Valve | 1 |
| 6V***52 | Cap-Dust; (Fuel Supply Tee Connection) | 1 |
212-8218 Fumes Disposal Gp
| 19***32 | Hose As-Fumes; (Disposal) | 1 |
| 19***49 | Bracket | 1 |
| 21***18 | Fumes Disposal Group | 1 |
143-2656 Gauge Gp-Oil Level (Dipstick)
| 12***19 | Gauge As-Oil Level (Dipstick) | 1 |
| 14***54 | Tube As-Gauge Guide | 1 |
| 14***56 | Gauge Group-Oil Level (Dipstick); -Engine | 1 |
217-4518 Guide Gp-Oil Level Gauge
| 0L***51 | Bolt Starting Engine Fuel Tank Bracket To Diesel Intake Manifold | 1 |
| 11***68 | Seal-O-Ring; (15.54mm Id) | 1 |
| 16***70 | Plug | 3 |
209-7314 Lines Gp-Turbocharger Oil
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 10***44 | Elbow | 1 |
| 11***87 | Seal-O-Ring (23.16 mm Id) | 1 |
211-2820 Lines Gp-Turbocharger Oil
| 10***69 | Tube As; (Oil) | 1 |
| 11***87 | Seal-O-Ring (23.16 mm Id) | 1 |
| 11***42 | Adapter | 1 |
165-0592 Lines Gp-Turbocharger Oil
| 03***33 | Seal-O-Ring; (12.42mm Id) | 1 |
| 11***87 | Seal-O-Ring (23.16 mm Id) | 1 |
| 11***42 | Adapter | 1 |
138-4773 Lines Gp-Turbocharger Oil
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 0S***88 | Bolt,Machine; Hose Assembly Mounting,Hose Assembly To Transmission,And To Torque Converter | 2 |
| 10***44 | Elbow | 1 |
235-2421 Lines Gp-Turbocharger Oil
| 0L***70 | Bolt (2-1/4") Filler Tube Assembly To Transfer Drive Case | 2 |
| 10***44 | Elbow | 1 |
| 11***87 | Seal-O-Ring (23.16 mm Id) | 1 |
233-5220 Pump Gp-Engine Oil
| 23***20 | Pump Group-Engine Oil | 1 |
| 6D***46 | Seal-O-Ring (Id=101.27mm) | 1 |
| 6V***17 | Bolt; (M8x1.25x30-mm)(Location Z) | 4 |
161-4113 Pump Gp-Engine Oil
| 12***56 | Cover As-Pump | 1 |
| 16***13 | Pump Group-Engine Oil | 1 |
| 1M***44 | Bolt; (3/8-16x2-1/4 In) | 2 |
117-2746 Pump Gp-Engine Oil
| 06***61 | Seal-O-Ring (Id=40.87mm) | 1 |
| 11***03 | Tube Assem. | 1 |
| 11***46 | Pump Group-Engine Oil | 1 |
138-2535 Valve Gp-Fluid Sampling -Engine Oil
| 13***35 | Valve Group-Fluid Sampling; -Engine Oil | 1 |
| 3J***54 | Packing,Preformed Part Of Kit P/N 5r***27 | 1 |
| 5P***17 | Adapter- To Logic Valve 1u***59 | 1 |
MTC845 serial number reference
The tractor identification plate reads as a 3-letter root (BBP on the MT845/MTC845) followed by a run of digits. The first digit is the model-year code (2 for 2002, 3 for 2003, 4 for 2004); the remaining digits are the production sequence for that year. Locate the plate on the frame as shown in your operator's manual - exact placement can vary by production run, so verify with your dealer if the plate is not where expected.
| Prefix | Identifies | Notes |
|---|---|---|
| BBP2 | MTC845 (Challenger MT845 base generation, Cat dealer-channel badge) - 2002 model year | Cat C12, 11.9 L 6-cylinder diesel, non-ACERT (Tier 2-era), gross rating about 283 kW (380 hp), PTO around 233 kW (313 hp). Built at the DeKalb, Illinois plant that AGCO acquired from Caterpillar in 2002, before Challenger track-tractor production later consolidated to Jackson, Minnesota. First model year sold under the Cat MTC845 dealer-channel designation after Caterpillar exited the tracked-tractor business to AGCO. Confirm exact year cutoff with your dealer. |
| BBP3 | MTC845 - 2003 model year | Same Cat C12, 11.9 L non-ACERT diesel and rating as the 2002 run, about 283 kW (380 hp) gross, 233 kW (313 hp) PTO. Transition-year block: early production still came from the DeKalb, Illinois plant, with output shifting to the new Jackson, Minnesota facility once AGCO completed the plant move partway through the year. Exact serial cutoff between the two plants is not documented - confirm plant/build details with your dealer. |
| BBP4 | MTC845 - 2004 model year (final year sold/cataloged as Cat MTC845) | Same Cat C12, 11.9 L non-ACERT diesel, about 283 kW (380 hp) gross. Built at the Jackson, Minnesota plant, AGCO's consolidated Challenger track-tractor production site from this year on. Parts-book block spans BBP40001 through BBP59999. Last model year before the line continued only as the AGCO-only MT845B successor (higher-rated engine, different serial usage), which is out of scope for this MTC845 listing. |
Frequently asked questions
What engine does the Caterpillar MTC845 use?
A Caterpillar C12, an 11.9 L (729 ci) turbocharged six-cylinder diesel with mechanical unit injectors. Gross flywheel output is commonly listed around 380 hp (283 kW); some spec sheets show rated/max figures from the high 370s to low 410s hp depending on whether the number reflects rated, max, or PTO power, so treat the exact figure as varying by source and test method.
What is the operating weight of the Caterpillar MTC845?
Base operating weight is generally listed around 18,144 kg (40,000 lb). Some spec listings show heavier figures, closer to 19-21 t, which typically reflect ballast, dual tracks, or later-generation trims rather than the base machine. Actual shipping weight varies by configuration.
What replaced the Caterpillar MTC845?
Caterpillar exited ag-tractor retail after the 2002-2004 run, and AGCO carried the MT845 name forward alone. The MT845B (2006-2008) moved to a larger Cat C15 ACERT engine at roughly 400 hp, and the MT845C (2008-2016) kept the C15 ACERT but raised output to about 440 hp. AGCO later retired the '845' designation entirely when it reengineered the MT800 series around MAN engines and a stepless CVT transmission.
What MTC845 owners discuss
Owners report the C12 in an MTC845 feels weak in the field even though nothing throws a fault code — what's the usual cause?
The consensus points to fuel delivery rather than the engine itself. A common thread is a fuel tank vent that plugs up, pulls the plastic tank in on itself under vacuum, and eventually cracks it — introducing air and debris into the fuel circuit. Rail pressure that reads low against spec (roughly 540-550 kPa / 78-80 psi against a spec near 620 kPa / 90 psi) is treated as a real warning sign, not noise. Mechanics note that sustained fuel starvation scores the transfer pump internally and starves injectors of the fuel flow they rely on for cooling, so a small pressure shortfall left unaddressed becomes injector wear and a genuine, lasting power loss. First checks are the tank vent, primary filter, and transfer pump output before injectors are blamed.
The C12 cranks fine but won't fire without a shot of ether — is that a bad sensor?
Community troubleshooting on this engine leans toward wiring before parts. A no-start with otherwise normal cranking and fuel pressure is most often traced to a chafed or corroded connector at the crank or camshaft position sensor circuit, which drops the timing reference the ECM needs to fire injectors. ECM connector pins showing corrosion or looseness are called out as a frequent root cause of intermittent injector signal loss. The recommended order is to confirm fuel pressure during cranking, inspect sensor wiring and ECM connectors for corrosion, and read stored codes before condemning a sensor or injector outright — swapping parts on a guess is discouraged. Given how a wiring fault here can mimic engine or fuel-system failure, have your dealer verify the diagnosis with proper diagnostic software before authorizing sensor or ECM replacement.
The powershift transmission throws a 'clutch fill time too long' fault during calibration — does that mean the clutch pack is worn out?
Not automatically, according to shop discussion. A transmission with a genuinely worn clutch pack usually still completes calibration; a fault like this more often points to a sticking modulating valve or a seal leaking past an apply piston that's sitting at the extreme end of its travel. Some owners report a transmission that shifts and pulls normally in the field yet still fails a shop calibration attempt on a trade-in, which reinforces that the fault is a valve/seal symptom rather than proof of clutch failure. Because a misdiagnosed transmission repair is costly and affects the machine's ability to hold gear under load, have your dealer verify the actual failure point with proper calibration software before any clutch-pack work is authorized.
What undercarriage wear is considered normal on the rubber-belt system, and what points to a real problem?
Midrollers rounding over — more rubber left in the middle of the roller face, less at the edges — is described as ordinary progressive wear, not a defect, and midrollers are expected to wear faster than the drive wheel or idlers simply because they're the cheapest, most numerous contact points. What is flagged as abnormal is wear concentrated on one side of the guide or drive lugs, which points to a track-alignment problem rather than age, and wear showing up on the underside of the belt itself, which more often traces back to worn midrollers than to the belt. Anyone inspecting a belt for uneven wear is advised to check alignment and midroller condition together rather than assume the belt is simply worn out.
How is track tension maintained on this machine, and why do owners take it seriously?
Tension is held by a nitrogen accumulator working against a hydraulic cylinder rather than a simple mechanical adjuster. The practical guidance passed around is to keep tension inside its designed window: over-tensioning risks tearing the belt, while under-tensioning lets the drive wheel slip inside the belt and chews it apart from the inside. A commonly cited field check is belt sag with the machine lifted, expected to fall around 10-20 mm (0.4-0.8 in), with a daily visual check recommended alongside any tension alarm the machine may have. Because incorrect tension can destroy a belt quickly and affects how the machine tracks and stops, have your dealer verify tension against the correct spec rather than tensioning by feel.
How does the MTC845 actually behave in the field and on the road compared to a wheeled 4WD tractor?
Owners describe the C12 as a strong, steady lugging engine that holds power under load rather than one that needs to be revved to pull. Ride quality gets consistently good marks in the field, with the track system smoothing out rough ground better than a wheeled tractor rides the same terrain — but the same owners say the ride turns rough on paved road or washboard surfaces. Berming, the buildup of soil on the inside of tight turns, comes up regularly but is generally described as manageable: it's more noticeable hauling the machine around in a tight headland turn than when pulling a wide implement, and several long-time owners say it gets overstated relative to how much it actually costs them in the field.
What should be checked before buying a used MTC845?
Buyers are steered toward the undercarriage first: overall belt wear percentage, midroller condition, and confirmation that the tension accumulator holds pressure rather than bleeding down overnight. On the drivetrain, run the powershift transmission through a calibration and watch for fill-time faults, since a machine that drives fine can still hide a valve or seal issue that only shows up on calibration. On the engine side, check that it starts cleanly without needing ether — a machine that needs assist to fire is a signal to inspect sensor wiring and injector circuits before buying, not after. Confirm fuel tank and vent integrity and pull rail fuel pressure against spec rather than trusting a smooth idle alone. Because tension, brake, and transmission calibration all affect safe operation, have your dealer verify these systems against factory spec as part of a pre-purchase inspection.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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