John Deerecummins engine(no series)
John Deere 7800 - CUMMINS ENGINE
Specifications · OEM parts breakdown
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John Deere 7800 - CUMMINS ENGINE specifications
Engine
| Displacement | 7636 cc (466.0 cu in.) |
| Cylinders | 6 |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
7800 - CUMMINS ENGINE common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| FF1254 | Fuel Filter | Fuel system service | Check fitment → |
| (4010651) | Filter, Fuel | Fuel system service | Check fitment → |
| FP11061 | Fuel Pump | Fuel system service | Check fitment → |
| 3100432 | Head, Oil Filter Coo | Lubrication service | Check fitment → |
| (3681601) | Head, Oil Filter Coo | Lubrication service | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
All 7800 - CUMMINS ENGINE assemblies by section
Every catalogued assembly group for the John Deere 7800 - CUMMINS ENGINE. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Accessory-Support
John Deere : 7800 - Cummins Engine : Accessory-Support
| 30***06 | Washer, Plain; M12, Plain Washer; M12, Plain Washer, Plain Washer; M12. 120mm (4.72in) Drive Ratio: 1.60:1, Washer-Plain, Washer, Plain; M12., Plain Washer; M12. | 4 |
| 30***73 | Screw, Hexagon Head, Screw-Hex Head | 4 |
| 31***90 | Support, Accessory, Support-Accessory | 1 |
Agency-Approval
John Deere : 7800 - Cummins Engine : Agency-Approval
| AP***45 | Agency Approval; Certified By: Epa, Carb, Eu Nonroad Certification Level: Tier 2. | 1 |
| (3***7) | Dataplate | 1 |
Air-Intake-Connection
John Deere : 7800 - Cummins Engine : Air-Intake-Connection
| 30***11 | Seal/O-Ring, Seal, O Ring, O Ring Seal, Cover | 1 |
| 30***79 | Clamp,V Band, Strip Group-Terminal, V Band Clamp, Clamp, Clamp, V Band | 1 |
| 36***17 | Connection, Air Tran | 1 |
Alternator-Mounting
John Deere : 7800 - Cummins Engine : Alternator-Mounting
| 14***51 | O-Ring, Seal, O Ring | 1 |
| 15***29 | Screw, Hexagon Head ; 1/2 - 20 X 6 1/2 Inch., Hexagon Head Cap Screw; 1/2 - 20 X 6 1/2 In., Hexagon Head Cap Screw, Hexagon Head Cap Screw; 1/2 - 20 X 6 1/2 In., Screw | 1 |
| 20***10 | Plain Washer, Plain Washer; 9/16 In., Plain Washer; 9/16 Inch., Washer, Plain, Washer, Plain; 9/16 Inch., Plain Washer; 9/16 Inch | 1 |
Base-Components
John Deere : 7800 - Cummins Engine : Base-Components
| 30***05 | Ring, Retaining, Retaining Ring, Ring, Retaining, Ring-Retaining | 24 |
| 36***74 | Screw, Connecting Ro, Connecting Rod Cap Screw, Screw-C/Rod Cap | 4 |
| 36***90 | Pin, Piston | 12 |
Camshaft
John Deere : 7800 - Cummins Engine : Camshaft
| 31***63 | Pipe, Camshaft | 1 |
| 36***82 | Screw, Hex Flange He, Hexagon Flange Head Cap Screw, Screw-Hex Flange | 1 |
| 36***68 | Cover, Camshaft | 1 |
Coolant-Heater Starting Aid
John Deere : 7800 - Cummins Engine : Coolant-Heater Starting Aid
| 30***57 | Screw,Hex Flange Head Cap, Hexagon Flange Head Cap Screw, Hexagon Flange Head Cap Screw; M10 X 1.50 X 16., Hexagon Flange Head Cap Screw; M10 X 1.50 X 16, Bolt (M10-1.50x16), Screw, Hex Flange He; M10 X 1.50 X 16 | 2 |
| 36***56 | Plate-Cover, Cover Plate, Plate, Cover | 1 |
| 36***57 | Gasket, Heater, Heater Gasket, Gasket-Heater | 1 |
Corrosion-Resistor
John Deere : 7800 - Cummins Engine : Corrosion-Resistor
| 36***33 | Resistor, Corrosion; Fleetguard #Wf2126 | 1 |
| WF***41 | Corrosion Resistor Corrosion Resistor With Fleetguard (Wf2126) Element With 8 Units Of Dca4 Type Additives. For Use With Fully Formulated Coolants (With Additives) Meeting Tmc Rp329 Or 330. Tmc Rp302 Low Silicate Coolants Requires Rp328 Additives. Suitabl | 1 |
Crankcase-Breather
John Deere : 7800 - Cummins Engine : Crankcase-Breather
| 10***60 | Clip, Clip, Breather System: Open | 4 |
| 38***75 | Tube, Breather, Breather Tube, Breather Tube; Location: #328 Facing Rear Vent Tube End Location: 6in. Below Pan Rail Centinel Provision: No Cqp To Use Plain Hose 32***44 And Clamp 21***53 In Place Of 33***02 And 38***75., Tube-Breather | 1 |
| 39***49 | Screw, Hex Flange He; M12 X 1.75 X 25., Hexagon Flange Head Cap Screw; M12 X 1.75 X 25. Cover Plate Provided: Yes, Hexagon Flange Head Cap Screw; M12 X 1.75 X 25., Hexagon Flange Head Cap Screw, Screw-Hex F/Head Cap, Bolt (M12-1.75x25) | 1 |
Crankshaft
John Deere : 7800 - Cummins Engine : Crankshaft
| 30***35 | Dowel-Pin, Tube As, Pin Dowel, Dowel, Pin | 2 |
| 36***03 | Adapter, Crankshaft, Crankshaft Adapter, Adapter-Crankshaft | 1 |
| 36***05 | Dowel, Pin | 1 |
Crankshaft-Pulley
John Deere : 7800 - Cummins Engine : Crankshaft-Pulley
| 30***06 | Washer, Plain; M12, Plain Washer; M12, Plain Washer, Plain Washer; M12. 120mm (4.72in) Drive Ratio: 1.60:1, Washer-Plain, Washer, Plain; M12., Plain Washer; M12. | 6 |
| 30***74 | Screw-Hex Head, Hexagon Head Cap Screw; M12 X 1.75 X 40, Screw, Hexagon Head ; M12 X 1.75 X 50. | 2 |
| 30***48 | Nut-Regular Hex, Nut, Regular Hexagon, Regular Hexagon Nut, Harness As-Wiring | 2 |
Cylinder-Block
John Deere : 7800 - Cummins Engine : Cylinder-Block
| 36***06 | Screw-Hex Flange, Hexagon Flange Head Cap Screw, Screw, Hex Flange He | 14 |
| 36***07 | Dowel-Ring, Ring Dowel, Dowel, Ring | 14 |
| 36***03 | Seal, O-Ring, Seal/O-Ring, O Ring Seal, Seal, O Ring | 1 |
Cylinder-Head
John Deere : 7800 - Cummins Engine : Cylinder-Head
| 30***65 | Plug-Expansion, Expansion Plug, Plug, Expansion | 7 |
| 34***53 | Tube, Tur Oil Drain, Tur Oil Drain Tube | 6 |
| 36***06 | Screw-Hex Flange, Hexagon Flange Head Cap Screw, Screw, Hex Flange He | 22 |
Cylinder-Liner Kit
John Deere : 7800 - Cummins Engine : Cylinder-Liner Kit
| 36***37 | Seal, O Ring | 6 |
| 36***38 | Seal/O-Ring, O Ring Seal, Seal, O Ring | 6 |
| 38***53 | Kit, Cylinder Liner, Liner Kit | 1 |
Duty-Cycle
John Deere : 7800 - Cummins Engine : Duty-Cycle
| SC***68 | Nc Calibration Softw; Software Calibration Cpl: 2825 Engine Control System: Apl Certified By: Epa, Carb, Eu Application: Nonroad Power Rating: Restr Aeb 26.01 Ecm Version: cm Series Comment: Ph 2.4.5.60 Cal Restr: None Pw: 01042 Fr: 10320 Advertised Power: 0600 Bhp At 2100 Rpm | 1 |
Electrical-Accessories
John Deere : 7800 - Cummins Engine : Electrical-Accessories
| 39***62 | Hexagon Flange Nut; M10 X 1.50., Hexagon Flange Nut, Hexagon Flange Nut; M10 X 1.50, Hexagon Flange Nut; M10 X 1.50. Production Fuel Pump Mounting, Hexagon Flange Nut; M10 X 1.50. Noise Dampening Panel, Nut, Hex, Hexagon Flange Nut; M10 X 1.50. Governor Type: Electronic Air Compressor Support @, Nut (M10-1.50), Nut-Hex Flange, Nut, Hexagon Flange; M10 X 1.50. | 2 |
| EA***04 | Electrical Accessori; Priming Pump Wiring Harness Starter Location: Left Quadrant. | 1 |
| (4***6) | Harness, Wiring | 1 |
Engine-Barring Drive
John Deere : 7800 - Cummins Engine : Engine-Barring Drive
| 10***43 | Ring, Retaining | 1 |
| 36***38 | Plug, Threaded, Threaded Plug, Threaded Plug; M33 X 2.00., Threaded Plug; M33 X 2.00, Plug-Threaded, Plug, Threaded | 1 |
| 36***46 | Seal, O-Ring, Seal, O Ring, O Ring Seal, Seal/O-Ring | 1 |
Engine-Brake
John Deere : 7800 - Cummins Engine : Engine-Brake
| EB***03 | Engine Brake; Brake Supplier: None. Application: Non Automotive Use Only. To Be Selected When Customer Does Not Want An Engine Brake. Protective Cover Plugs Into 8-Way Engine Brake Connector On Base Engine Harness. | 1 |
| (3***3) | Cover, Protective | 1 |
Engine-Control Module
John Deere : 7800 - Cummins Engine : Engine-Control Module
| 14***61 | Washer, Plain; 3/8 Inch., 3/8 In., Washer, Plain, Washer-Plain, Washer, Plain | 4 |
| 30***01 | Clamp, Wire Tie Clamp, Clamp, Wire Tie | 6 |
| 33***02 | Seal, O-Ring, Seal-O/Ring, O Ring Seal, Seal, O Ring | 2 |
Engine-Oil-Cooler
John Deere : 7800 - Cummins Engine : Engine-Oil-Cooler
| 30***25 | Seal, O Ring, O Ring Seal, Seal/O-Ring | 1 |
| 30***00 | Union-Male, Male Union, Union, Male | 0 |
| 31***00 | Thermostat, Name-Plate (Portuguese), Thermostat | 1 |
Exhaust-Recirculatio
John Deere : 7800 - Cummins Engine : Exhaust-Recirculatio
| 30***76 | Gasket, Turbocharger, Turbocharger Gasket, Gasket-Turbo | 1 |
| 30***31 | Screw, Twelve Point, Twelve Point Cap Screw, Screw-Twelve P/Cap | 6 |
| 32***10 | Connection-E/Outlet, Connection, Exhaust, Exhaust Outlet Connection, Hose As | 1 |
Fan-Drive
John Deere : 7800 - Cummins Engine : Fan-Drive
| 14***76 | Nut, Lock; 1 1/8 - 12 Unf., Nut, Lock, 1 1/8 - 12 Unf., Nut-Lock | 1 |
| 20***07 | Seal, Oil, Oil Seal, Seal-Oil | 1 |
| 20***10 | Plain Washer, Plain Washer; 9/16 In., Plain Washer; 9/16 Inch., Washer, Plain, Washer, Plain; 9/16 Inch., Plain Washer; 9/16 Inch | 6 |
Flywheel
John Deere : 7800 - Cummins Engine : Flywheel
| 36***40 | Screw-Twelve Point Cap, Twelve Point Cap Screw, Screw, Twelve Point | 12 |
| 36***13 | Flywheel Ring Gear, Gear, Flywheel Ring | 1 |
| 36***22 | Flywheel | 1 |
Front-Engine-Support
John Deere : 7800 - Cummins Engine : Front-Engine-Support
| 36***56 | Screw-Hex Flange, Hexagon Flange Head Cap Screw, Screw, Hex Flange He | 3 |
| 36***57 | Screw, Hex Flange He, Hexagon Flange Head Cap Screw, Screw-Hex Flange | 3 |
| 36***23 | Support, Front Engin | 1 |
Fuel-Filter
John Deere : 7800 - Cummins Engine : Fuel-Filter
| FF***54 | Fuel Filter; Water In Fuel Sensor: Yes Fuel Filter Type: Water Separator With Drain Fuel Filter Mounting: Fuel Pump Mounted. | 1 |
| (4***1) | Filter, Fuel | 1 |
Fuel-Pump
John Deere : 7800 - Cummins Engine : Fuel-Pump
| 10***99 | Seal, Rectangular Ri, Seal, Seal-Rect Ring | 2 |
| 10***75 | Nameplate, Plate, Name | 1 |
| 12***68 | Spring, Valve, Spring, Valve, Spring-Valve | 1 |
Gasket-Set
John Deere : 7800 - Cummins Engine : Gasket-Set
| 30***44 | Seal, O Ring, O Ring Seal | 1 |
| 33***37 | Seal/O-Ring, O Ring Seal, Seal, O Ring | 6 |
| 33***38 | Seal, O Ring, O Ring Seal, Seal/O-Ring | 6 |
Gear-Cover-Noise Panel
John Deere : 7800 - Cummins Engine : Gear-Cover-Noise Panel
| 36***92 | Isolator-Noise, Isolator, Noise | 1 |
| PP***25 | Cylinder Head; Noise Reduction Device Used Between Gear Housing And Cylinder Head., Cylinder Head, Cylinder Head; Certified Model Name: Qsx-15 Timing Gear Code: 46 Cpl: 2825 Certified By: Epa, Carb Afc: N/A Asa: N/A Efc: N/A Etc: Yes Manifold Type: Dry Engine Aspiration: Turbocharged/Aftercooled Engine Control System: Api Application: Nonroad Power Turbine: N/A. Desi | 1 |
Gear-Housing
John Deere : 7800 - Cummins Engine : Gear-Housing
| 30***01 | Seal-Grommet, Seal, Grommet, Grommet Seal, Seal, Grommet | 1 |
| 30***34 | Tube-Breather, Breather Tube, Tube, Breather | 1 |
| 30***94 | Seal, O Ring, O Ring Seal, O-Ring | 1 |
Gear-Housing/Idler Gears
John Deere : 7800 - Cummins Engine : Gear-Housing/Idler Gears
| 34***21 | Screw, Hex Flange He, Hexagon Flange Head Cap Screw, Screw-Hex F/Head Cap | 3 |
| 36***71 | Dowel-Ring, Ring Dowel, Dowel, Ring | 2 |
| 36***86 | Spacer-Mounting, Mounting Spacer, Spacer, Mounting | 2 |
Gear-Retainer
John Deere : 7800 - Cummins Engine : Gear-Retainer
| 30***30 | Washer, Plain, Plain Washer; M10, Plain Washer, Plain Washer; M10., Washer, Plain; M10, Washer-Plain | 1 |
| 30***36 | Screw, Hex Flange He, Hexagon Flange Head Cap Screw, Hexagon Flange Head Cap Screw; M10 X 1.50 X 90, Hexagon Flange Head Cap Screw; M10 X 1.50 X 90., Screw-Hex F/Head Cap, Bolt | 2 |
| 36***24 | Seal, O Ring, O Ring Seal; Water Pump To Block, O Ring Seal, O Ring Seal; Water Pump To Block Designates This O Ring To Go Between The Water Pump And Block., O-Ring | 1 |
Injector
John Deere : 7800 - Cummins Engine : Injector
| 30***16 | Screen, Filter, Filter Screen, Shaft As-Drive, Screen-Filter | 6 |
| 33***37 | Seal/O-Ring, O Ring Seal, Seal, O Ring | 6 |
| 33***38 | Seal, O Ring, O Ring Seal, Seal/O-Ring | 6 |
Lube-Oil-Pump
John Deere : 7800 - Cummins Engine : Lube-Oil-Pump
| 36***87 | Shim, Shim; .36 mm (0.014 Inch), Shim; 0.3556 mm Thickness., Shim | 2 |
| 36***88 | Shim, Shim, Shim; 0.4572 mm Thickness., Shim; .45 mm (0.018 Inch) | 2 |
| 36***89 | Shim, Shim; .55 mm (0.022 Inch), Shim; 0.5588 mm Thickness., Shim | 2 |
Oil-Level-Gauge
John Deere : 7800 - Cummins Engine : Oil-Level-Gauge
| 14***61 | Washer, Plain; 3/8 Inch., 3/8 In., Washer, Plain, Washer-Plain, Washer, Plain | 1 |
| 36***86 | O Ring Seal; M18., O Ring Seal; M18, O Ring Seal; Parker Flexible Hoses., O Ring Seal, Seal, O Ring, O Ring Seal; Item Not Shown In Art., Seal/O-Ring, Seal, O-Ring | 1 |
| 36***73 | Plug, Threaded, Threaded Plug, Threaded Plug; M18 X 1.5 X 19.5, Threaded Plug; M18 X 1.5 X 19.5., Plug-Threaded, Plug, Threaded | 3 |
Oil-Pan
John Deere : 7800 - Cummins Engine : Oil-Pan
| 36***06 | O Ring Seal; M27 X 2.00, O Ring Seal; M27 X 2.00., O Ring Seal; 1 1/1-12 X M27 X 2.00, O Ring Seal, Seal, O Ring, Seal, O Ring; M27 X 2.00., Seal/O-Ring, Seal, O-Ring | 2 |
| 36***56 | Seal, O Ring, O Ring Seal, Seal/O-Ring | 1 |
| 36***12 | O Ring Seal; M14, O Ring Seal; M14., O Ring Seal; Remote Ht Coolant Temperature, O Ring Seal, O Ring Seal; 146.93 (5.78in) Thermostat, Seal, O Ring, Seal/O-Ring, Seal, O-Ring | 1 |
Oil-Replenishing System
John Deere : 7800 - Cummins Engine : Oil-Replenishing System
| 34***10 | Lubricating Oil Filter; Buy From Cummins Filtration, Filter, Lubricating ; Fleetguard #Lf9000 | 0 |
| LF***10 | Full Flow Oil Filter; One Combo Spin-On Element Mounted To The Lube Cooler Filter Model: Lf9000 Capacity: 3.8 I (One Us Gallon). | 1 |
Piston-Cooling Nozzle
John Deere : 7800 - Cummins Engine : Piston-Cooling Nozzle
| 34***60 | Nozzle-Piston Cooling, Nozzle, Piston Cooli | 6 |
| 36***37 | Screw-Hex F/Head Cap, Hexagon Flange Head Cap Screw, Screw, Hex Flange He | 6 |
| PP***25 | Cylinder Head; Noise Reduction Device Used Between Gear Housing And Cylinder Head., Cylinder Head, Cylinder Head; Certified Model Name: Qsx-15 Timing Gear Code: 46 Cpl: 2825 Certified By: Epa, Carb Afc: N/A Asa: N/A Efc: N/A Etc: Yes Manifold Type: Dry Engine Aspiration: Turbocharged/Aftercooled Engine Control System: Api Application: Nonroad Power Turbine: N/A. Desi | 1 |
Rocker-Lever
John Deere : 7800 - Cummins Engine : Rocker-Lever
| 30***30 | Plug, Drive, Drive Plug | 12 |
| 30***41 | Plug-Ball, Plug, Ball, Ball Plug, Ball, Plug | 6 |
| 31***76 | Lever-Rocker, Lever, Rocker | 6 |
Starting-Motor
John Deere : 7800 - Cummins Engine : Starting-Motor
| ST***36 | Starting Motor; Manufacturer: Manufactured By Delco Remy, Branded For Cummins Model: Dr42 Mt400 Voltage: 12 Rotation: Right Hand Solenoid Angle (Degrees): 82 Length: 393.45mm (15.5in) Power Supply: Electric Starter Location: Engine Left. | 1 |
| (4***7) | Motor, Starting | 1 |
Starting-Motor Mounting
John Deere : 7800 - Cummins Engine : Starting-Motor Mounting
| 15***50 | Twelve Point Cap Screw; 5/8 - 11 X 1 3/4 Inch., Twelve Point Cap Screw; 5/8 - 11 X 1 3/4", Twelve Point Cap Screw, Screw, Twelve Point ; 5/8 - 11 X 1 3/4 Inch. | 3 |
| SM***01 | Starting Motor Mount; Starting Motor Mounting Cummins Supplied Mounting. Screws: English (In). Clutch Provison: Dry. For Use With Cummins Or Customer Supplied Starting Motor. | 1 |
Thermostat
John Deere : 7800 - Cummins Engine : Thermostat
| 30***79 | Seal-Thermostat, Thermostat Seal, Seal, Thermostat | 2 |
| 31***25 | Cover, Thermostat Ho, Thermostat Housing Cover, Cover-T/Housing | 1 |
| 36***03 | Seal, O-Ring, Seal/O-Ring, O Ring Seal, Seal, O Ring | 1 |
Turbocharger
John Deere : 7800 - Cummins Engine : Turbocharger
| 30***98 | Stud, Stud, Bolt, Stud | 4 |
| 35***67 | Washer, Plain, Plain Washer; Holset Part Sold Only In Kits, Plain Washer, Plain Washer; No, Washer-Plain, Washer, Plain | 3 |
| 35***04 | Washer-Lock, Lock Washer; M6, Washer, Lock; M6. | 3 |
Turbocharger-Arrangement
John Deere : 7800 - Cummins Engine : Turbocharger-Arrangement
| 36***45 | Mounting Spacer, Spacer, Mounting | 12 |
| 36***00 | Manifold-Exhaust, Exhaust Manifold, Manifold, Exhaust | 2 |
| 36***43 | Exhaust Manifold Gasket, Gasket, Exhaust Mani | 4 |
Turbocharger-Plumbing
John Deere : 7800 - Cummins Engine : Turbocharger-Plumbing
| 10***03 | 1/8 Npt., 1/8 Npt, Plug-Pipe, Plug, Pipe; 1/8 Npt | 1 |
| 12***68 | Spring, Valve, Spring, Valve, Spring-Valve | 2 |
| 12***88 | Seal-Rect Ring, Seal, Seal, Rectangular Ri, Seal, Rectangular Ring | 2 |
Valve-Cover
John Deere : 7800 - Cummins Engine : Valve-Cover
| 31***95 | Isolator, Noise, Noise Isolator | 8 |
| 40***07 | Valve Cover Gasket; Ref. Tsb100816, Gasket, Valve Cover | 1 |
| 40***75 | Valve Cover; Purchase 36***85, Cover, Valve | 1 |
Vibration-Damper
John Deere : 7800 - Cummins Engine : Vibration-Damper
| 30***35 | Dowel-Pin, Tube As, Pin Dowel, Dowel, Pin | 2 |
| 31***76 | Pulley, Crankshaft, Crankshaft Pulley, Pulley-Crankshaft | 1 |
| 36***83 | Screw-Hex, Hexagon Flange Head Cap Screw, Screw, Hexagon Head | 12 |
Water-Inlet-Connection
John Deere : 7800 - Cummins Engine : Water-Inlet-Connection
| 30***36 | Screw, Hex Flange He, Hexagon Flange Head Cap Screw, Hexagon Flange Head Cap Screw; M10 X 1.50 X 90, Hexagon Flange Head Cap Screw; M10 X 1.50 X 90., Screw-Hex F/Head Cap, Bolt | 4 |
| 36***06 | O Ring Seal; M27 X 2.00, O Ring Seal; M27 X 2.00., O Ring Seal; 1 1/1-12 X M27 X 2.00, O Ring Seal, Seal, O Ring, Seal, O Ring; M27 X 2.00., Seal/O-Ring, Seal, O-Ring | 1 |
| 36***11 | Plug-Threaded, Threaded Plug; M27, Threaded Plug; Item Not Shown In Art., Threaded Plug, Plug, Threaded, Plug, Threaded | 3 |
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