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John Deere 6068TFM50 Engine

The John Deere 6068TFM50 is a 6.8 L 6-cylinder turbocharged engine rated at 1500 rpm, producing up to 119 kW. It powers generator sets from John Deere and PowerTech.

Also known as: John Deere Power Systems 6068TFM50

Part of the John Deere 6068 engine family — 57 variants share parts & fitment.

6.8 L

Displacement

Cylinders

1500 rpm

Rated speed

119 kW

Gross power

On this pageSpecs Generator sets FAQ Service intervals Torque & specs Fluids Procedures

Engine specifications

Displacement	6.8 L
Cylinders	6
Aspiration	Turbocharged
Rated speed	1500 rpm
Gross power	119 kW

Generator sets powered by this engine

Shared across brands: John Deere, PowerTech

John Deere 6068TFM50PowerTech 6068TFM50

How to read your John Deere engine serial & model number →

Repair guides

Step-by-step procedures compiled from the John Deere service manual for this engine.

Service intervals

Item	Action	Hours	Months	Notes
Engine oil and oil filter	Change	100 hr		First service — After the first 100 hours of operation of a new or rebuilt engine; use John Deere ENGINE BREAK-IN OIL during break-in
Engine coolant	Test		12 mo	Test the coolant solution at intervals of 12 months or less and whenever excessive coolant is lost
Supplemental coolant additive	Check		12 mo	Replenish additives between drain intervals by adding supplemental coolant additive every 12 months or as determined by coolant testing
Vibration damper	Replace	4500 hr	60 mo	Replace every five years or 4500 hours, whichever occurs first

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Service specifications

Type	Item	Value	Unit	Condition
Clearance	Assembled Rod Bearing—ID	77.876—77.927	mm (3.0659—3.0679 in.)
Clearance	Camshaft Follower Bore in Block—ID	31.70—31.75	mm (1.248—1.250 in.)
Clearance	Camshaft Follower-to-Bore—Clearance	0.06—0.13	mm (0.002—0.005 in.)
Clearance	Camshaft Follower—OD	31.61—31.64	mm (1.245—1.246 in.)
Clearance	Connecting Rod Bearing-to-Journal (New Parts)—Oil Clearance; wear limit 0.152 mm (0.0060 in.)	0.050—0.127	mm (0.0020—0.0050 in.)
Clearance	Connecting Rod Bore (Without Bearing Inserts)—ID	82.677—82.703	mm (3.2550—3.2560 in.)
Clearance	Connecting Rod Bore—Maximum Permissible Out-of-Round	0.038	mm (0.0015 in.)
Clearance	Crankshaft—End Play	0.029—0.357	mm (0.001—0.014 in.)
Clearance	Cylinder Block Main Bearing Bore—ID	84.455—84.481	mm (3.3250—3.3260 in.)
Clearance	Cylinder Head Flatness—Maximum Acceptable Out-of-Flat for Entire Length or Width	0.08	mm (0.003 in.)
Clearance	Cylinder Head Flatness—Maximum Acceptable Out-of-Flat for Every 150 mm (5.90 in.)	0.03	mm (0.001 in.)
Clearance	Cylinder Liner—Height above Block	0.030—0.100	mm (0.001—0.004 in.)
Clearance	Cylinder Liner—ID	106.48—106.52	mm (4.192—4.194 in.)
Clearance	Cylinder Liner—Maximum Taper	0.05	mm (0.002 in.)
Clearance	Exhaust Valve Guide-to-Valve Stem (New) Clearance (four-valve)	0.025—0.077	mm (0.0010—0.0030 in.)
Clearance	Exhaust Valve—Recess in Cylinder Head (four-valve); wear limit 1.81 mm (0.071 in.)	0.81—1.31	mm (0.032—0.052 in.)
Clearance	Exhaust Valve—Recess in Cylinder Head (two-valve); wear limit 2.26 mm (0.089 in.)	1.22—1.72	mm (0.048—0.068 in.)
Clearance	Fuel Supply Pump Push Rod Bore in Block—ID	10.00—10.05	mm (0.3937—0.3957 in.)
Clearance	Fuel Supply Pump Push Rod—OD	9.891—9.917	mm (0.3894—0.3904 in.)
Clearance	Intake Valve Guide-to-Valve Stem (New) Clearance (four-valve)	0.012—0.064	mm (0.0005—0.0025 in.)
Clearance	Intake Valves—Recess in Cylinder Head (four-valve); wear limit 1.77 mm (0.070 in.)	0.77—1.27	mm (0.030—0.050 in.)
Clearance	Intake Valves—Recess in Cylinder Head (two-valve); wear limit 1.63 mm (0.064 in.)	0.61—1.11	mm (0.024—0.044 in.)
Clearance	Intake and Exhaust Valve Guide-to-Valve Stem Wear Limit (four-valve)	0.15	mm (0.0059 in.)
Clearance	Intake and Exhaust Valves—Maximum Variation for a Pair of Valves (Per Cylinder)	0.3	mm (0.012 in.)
Clearance	Main Bearing Bore Centerline-to-Cylinder Block Top Deck—Distance	337.896—337.972	mm (13.3029—13.3059 in.)
Clearance	Maximum Permissible Height Difference at Nearest Point of Two Adjacent Liners, or Within a Single Liner	0.05	mm (0.002 in.)
Clearance	Piston Pin-to-Bushing—Oil Clearance; wear limit 0.102 mm (0.0040 in.)	0.020—0.056	mm (0.0008—0.0022 in.)
Clearance	Piston Rings 4045DF, TF150 and 6068DF, TF150 No. 1 Compression—End Gap	0.33—0.58	mm (0.013—0.023 in.)
Clearance	Piston Rings 4045TF250 and 6068TF250 No. 2 Compression—End Gap	0.75—1.00	mm (0.030—0.039 in.)
Clearance	Piston-to-Liner Clearance at Bottom of Piston Skirt (Naturally Aspirated Engines)	0.08—0.14	mm (0.003—0.005 in.)
Clearance	Piston-to-Liner Clearance at Bottom of Piston Skirt (Turbocharged Engines)	0.08—0.15	mm (0.003—0.006 in.)
Clearance	Rocker Arm Bore—ID (four-valve); wear limit 20.16 mm (0.794 in.)	20.065—20.115	mm (0.790—0.792 in.)
Clearance	Rocker Arm Bore—ID (two-valve); wear limit 20.17 mm (0.794 in.)	20.07—20.12	mm (0.790—0.792 in.)
Clearance	Rocker Arm Shaft—OD (four-valve); wear limit 19.91 mm (0.784 in.)	19.962—20.038	mm (0.786—0.789 in.)
Clearance	Rocker Arm Shaft—OD (two-valve); wear limit 19.94 mm (0.785 in.)	19.99—20.02	mm (0.787—0.788 in.)
Clearance	Valve Bridge—Pocket-to-Pocket Variation (Maximum)	0.1	mm (0.004 in.)
Clearance	Valve Guide-to-Valve Stem (New) Clearance (two-valve); wear limit 0.15 mm (0.006 in.)	0.05—0.10	mm (0.002—0.004 in.)
Gap	Valve Face—Maximum Runout (Intake and Exhaust)	0.038	mm (0.0015 in.)
Other	Crankshaft Journal—OD	77.800—77.826	mm (3.0629—3.0640 in.)
Other	Damper Pulley Inner Ring—Wobble (Maximum)	0.5	mm (0.020 in.)
Other	Damper Pulley Outer Ring—Wobble (Maximum)	1.50	mm (0.060 in.)
Other	Damper—Maximum Radial Runout (Concentricity)	1.50	mm (0.060 in.)	engine at operating temperature
Other	Exhaust Valve Head—OD (four-valve)	35.87—36.13	mm (1.412—1.422 in.)
Other	Exhaust Valve Head—OD (two-valve)	42.37—42.63	mm (1.668—1.678 in.)
Other	Exhaust Valve Stem—OD (four-valve)	6.984—7.000	mm (0.2749—0.2756 in.)
Other	Exhaust Valve Stem—OD (two-valve)	7.848—7.874	mm (0.3090—0.3100 in.)
Other	Exhaust Valves—Lift (four-valve head); wear limit 9.00 mm (0.354 in.)	9.32—9.72	mm (0.367—0.383 in.)	engine cold
Other	Exhaust Valves—Lift (two-valve head); wear limit 11.08 mm (0.436 in.)	11.51—11.94	mm (0.453—0.470 in.)	engine cold
Other	Flywheel Bearing Bore Concentricity—Maximum Variation	0.127	mm (0.005 in.)
Other	Flywheel Face Flatness—Maximum Variation	0.23	mm (0.009 in.)
Other	Intake Valve Head—OD (four-valve)	36.87—37.13	mm (1.452—1.462 in.)
Other	Intake Valve Head—OD (two-valve)	46.47—46.73	mm (1.830—1.840 in.)
Other	Intake Valve Stem—OD (four-valve)	6.987—7.013	mm (0.2750—0.2761 in.)
Other	Intake Valve Stem—OD (two-valve)	7.864—7.884	mm (0.3096—0.3104 in.)
Other	Intake Valves—Lift (four-valve head); wear limit 8.70 mm (0.343 in.)	9.03—9.43	mm (0.356—0.371 in.)	engine cold
Other	Intake Valves—Lift (two-valve head); wear limit 11.34 mm (0.447 in.)	11.77—12.21	mm (0.463—0.481 in.)	engine cold
Other	Maximum Valve Seat Runout (two-valve)	0.08	mm (0.003 in.)
Other	Minimum Acceptable Cylinder Head Thickness	104.24	mm (4.104 in.)
Other	New Cylinder Head—Thickness	104.87—105.13	mm (4.129—4.139 in.)
Other	Piston Cooling Orifice Jet—Diameter	1.4	mm (0.055 in.)

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

Fluid	Grade	Standard	Notes
Coolant	John Deere COOL-GARD Prediluted Coolant (50% ethylene glycol or 55% propylene glycol)	ASTM D6210 prediluted/concentrate; ASTM D4985 requires initial SCA charge	System filled for freeze protection to -37°C (-34°F). Do not use coolant-water mixture greater than 60% glycol. Do not mix ethylene glycol and propylene glycol base coolants.
Engine oil	John Deere ENGINE BREAK-IN OIL	Alternate: API CE, CD, CC or ACEA E2, E1 (first 100 hours)	New/rebuilt engines filled at factory with break-in oil. Do not exceed 100 hours with break-in oil.
Engine oil	John Deere PLUS-50 (preferred)	ACEA E5, ACEA E4; also John Deere TORQ-GARD SUPREME, API CI-4, CH-4, CG-4, CF-4, ACEA E3, E2 (Non-Certified and Tier 1 Certified Engines)	Multi-viscosity diesel engine oils are preferred. If oils meeting API CG-4, API CF-4, or ACEA E2 are used, reduce service interval by 50%.
Fuel	Bio-diesel fuel	ASTM D6751, EN 14214 or equivalent; up to 5% blend (B5)	Raw pressed vegetable oils are NOT acceptable. Check engine oil level daily when air temperature is -10°C (14°F) or lower.
Fuel	Diesel fuel	EN 590 or ASTM D975; Cetane number 40 minimum (greater than 50 preferred) for Non-Certified, Tier I and Tier 2/Stage II engines	Sulfur content should not exceed 0.5%; DO NOT use diesel fuel with sulfur content greater than 1.0%. Fuel lubricity minimum 3100 gram load (BOCLE).
Grease	John Deere SD POLYUREA GREASE (preferred)	NLGI Performance Classification GC-LB; also John Deere HD LITHIUM COMPLEX GREASE, HD WATER RESISTANT GREASE, GREASE-GARD	Consult grease supplier before mixing different types of grease.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

Check and Adjust Valve Clearance (Four-Valve Head Engines) adjustment

⚠ Adjust with engine COLD

⚠ Replace valves, seats, springs and retainers in pairs; also replace bridge

Tools: JDE83 Flywheel Turning Tool, JDG1571 Timing Pin, Feeler gauge

Disconnect NEGATIVE battery terminal.
Remove rocker arm cover and crankcase ventilator tube.
Remove plugs from timing/rotation hole and timing pin hole.
Rotate flywheel until No. 1 cylinder is at TDC compression; insert timing pin.
Loosen jam nut on rocker arm adjusting screw.
Turn adjusting screw until feeler gauge slips with slight drag.
Tighten jam nut to 27 N•m (20 lb-ft) and recheck clearance.

Check and Adjust Valve Clearance (Two-Valve Head Engines) adjustment

⚠ Valve clearance MUST be checked and adjusted with engine COLD

⚠ Disconnect NEGATIVE battery terminal to prevent accidental starting

Tools: JDE83 or JDE81-11 Flywheel Turning Tool, JDG1571 or JDE81-4 Timing Pin, Feeler gauge

Disconnect NEGATIVE battery terminal.
Remove rocker arm cover and crankcase ventilator tube.
Remove plugs from engine timing/rotation hole and timing pin hole.
Rotate flywheel until No. 1 cylinder is at TDC compression; insert timing pin.
Loosen jam nut on rocker arm adjusting screw.
Turn adjusting screw until feeler gauge slips with a slight drag.
Tighten jam nut to 27 N•m (20 lb-ft) and recheck clearance.

Measure Valve Lift diagnostic

⚠ Measure at 0.00 mm clearance and with engine COLD

Tools: JDG1571 or JDE81-4 Timing Pin, Flywheel turning tool, Dial indicator

Remove rocker arm cover.
Set No. 1 piston at TDC compression and install timing pin.
Set rocker arm-to-valve tip clearance to 0.00 mm for the appropriate valves.
Place dial indicator on top of valve spring cap or rotator; set dial to 0.
Remove timing pin and rotate engine one full revolution (360°).
Record maximum dial reading as valve reaches full open.
Compare to specification; if out of spec, inspect entire valve train and camshaft.

Perform Engine Break-In operation

⚠ Do not run engine at full load for more than 10 minutes at one time

⚠ Do not use PLUS-50 or API CI-4/CH-4/CG-4/CF-4/CF-2 during break-in

Tools: Dynamometer

Fill crankcase with John Deere Engine Break-In Oil.
Start engine and run at loads/speeds per break-in chart for time limits.
Run engine 1—2 minutes at 1500 rpm no load before shutdown.
Check and readjust valve clearance as necessary; cylinder head retorque not required.
Avoid prolonged idling or sustained maximum load during first 20 hours.
After 100 hours maximum, drain break-in oil and change oil filter.
Fill crankcase with John Deere PLUS-50 or TORQ-GARD SUPREME.

Grind Valve Seats (Two-Valve Head Engines) repair

⚠ Valve seat grinding should only be done by experienced personnel

⚠ Do not grind excessively

Tools: JT05893 Heavy-Duty Seat Grinder Set, Eccentrimeter, Vernier caliper

Install appropriate pilot in valve guide bore.
Install grinding stone on arbor and position onto valve seat.
Grind valve seats to 30° seat angle.
Measure seat width; reduce width with a narrowing stone if too wide.
Check valve seat runout with an eccentrimeter if valve does not seat properly.
Blend or radius all sharp edges after grinding.

Install Crankshaft Rear Oil Seal and Wear Sleeve repair

⚠ Do not separate seal and wear sleeve

⚠ No lubrication on sealing portion or sleeve ID; coat rubber OD of seal with light engine oil only

Tools: JT30040B or KCD10002A Installer Set, JDG476 Rear Oil Seal/Wear Sleeve Installation Tool Set

Clean crankshaft flange OD and flywheel housing ID; remove nicks or burrs.
Install oil seal housing without seal using new gasket; snug cap screws.
Use JDG478 Driver to center seal housing on crankshaft.
Tighten seal housing-to-cylinder block cap screws to 27 Nm (20 lb-ft); remove driver.
Install JDG477 Pilot on end of crankshaft with socket head screws.
Start seal/wear sleeve on pilot with open end toward engine.
Position JDG478 Driver and tighten nut until driver bottoms on pilot.
Remove tool set from engine.

Install Cylinder Head (Two-Valve Head Engines) repair

⚠ Always use new cylinder head cap screws

⚠ Head gasket can be damaged if head is repositioned on block

Tools: Guide studs, Torque wrench, JT05993 Torque Angle Gauge

Dip fuel supply pump push rod in clean engine oil and install.
Reinstall two dowel pins in cylinder block.
Place new head gasket on block dry (no sealant).
Position cylinder head over guide studs and lower onto block.
Dip entire cap screw in JDT305 Lubricant.
Remove guide studs and install new flanged-head cap screws.
Tighten in sequence Step 1 (100 N•m), Step 2 (150 N•m), Step 3 verify (150 N•m).
Torque-turn each screw an additional 60° ± 10°.

Install Cylinder Liner in Block repair

⚠ Install liners into same cylinder bore as removed

⚠ Do not intermix piston/liner sets on the same engine

⚠ If a packing may have sheared, remove and examine liner and packing

Tools: KCD10001 or JDG1145 Cylinder Liner Puller

Install liner in block bore with mark toward front of engine.
Rotate liner 90° from removed position if OD is pitted or eroded.
Finish seating liner using cylinder liner puller.
Hold liners with large flat washers and cap screws, snug only.
Clean liner bores with waterless hand cleaner and wipe dry.
Apply clean engine oil to liner bores to prevent corrosion.

Install Fuel Injectors (Four-Valve Head Engines) repair

⚠ Replace 24-volt glow plugs with same voltage rating as removed

Tools: JDG1652 Injector Nozzle Removal Tool

Ensure used copper washer has been removed from bottom of injector sleeve.
Install copper washer on end of fuel injector tip.
Install injector with hold-down clamp; ensure fuel inlet port faces supply tube.
Install fuel supply tube with smaller end toward injector; seat tube.
Install fitting and screw using proper torque procedure.
Install glow plug and torque to 15 N•m (133 lb-in.).

Install Piston Rings repair

⚠ Piston rings can be damaged if expanded too far

Tools: JDE85, JDE135 or KJD10140 Piston Ring Expander

Use piston ring expander to install oil ring expander in bottom ring groove.
Install oil control ring over expander with end gap opposite expander gap.
Identify top side of compression rings by marks.
Install rectangular compression ring in center groove with top toward top of piston.
Position gap opposite the oil control ring gap.
Install keystone compression ring in top groove with top toward top of piston.
Position gap opposite the rectangular compression ring gap.
Stagger ring gaps as shown.

Install Piston and Connecting Rod Assembly repair

⚠ Do not intermix piston/liner sets on the same engine

⚠ NEVER use connecting rod cap screws more than once for final assembly

⚠ On PRECISION JOINT rods ensure cap is properly aligned

Tools: JDE84 Piston Ring Compressor, Torque wrench, JT05993 Torque Angle Gauge

Coat pistons, liners and ring compressor with clean engine oil.
Place ring compressor with piston and rod over liner with 'FRONT' toward front of engine.
Push piston down until top ring enters liner.
Install bearing insert in rod with tang in groove.
Apply clean engine oil to insert and crankshaft journal; pull rod against journal.
Install bearing insert in cap; apply oil and install cap with tangs to same side.
Dip NEW cap screws in clean oil and install.
Tighten cap screws alternately to 58 N•m (43 lb-ft), then torque-turn 90—100°.

Install Valves repair

⚠ Replace valves, seats, springs and retainers in pairs (four-valve)

⚠ Valve springs MUST be installed with small diameter end away from cylinder head (four-valve)

Tools: JDE138 Valve Spring Compressor, JDG678 Valve Stem Seal Installer (two-valve), JDG1651 Valve Seal Installer (four-valve)

Lubricate valve stems and guides with clean engine oil.
Insert valves in head (same location if reused).
Use valve stem seal installer to slide seals over stems onto guide tower.
Install valve springs and rotators.
Compress springs and install retainer locks.
Strike end of each valve three or four times with a soft mallet.
Recheck valve recess.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Parts cataloged across the John Deere 6068 family

227

Part #	Description	Category
G030077	Air Cleaner Element (Engine) Primary	Air filter
G030078	Air Cleaner Element (Engine) Secondary	Air filter
GM90735	Air Cleaner	Air filter
GM91358	Element, Air Cleaner	Air filter
GM92823	Element, Air Cleaner Safety	Air filter
MQ-125-AIR-FILTER	Air Filter	Air filter
DZ114956	ALTERNATOR	Alternator
DZ117503	ALTERNATOR	Alternator
DZ123153	ALTERNATOR	Alternator
LSA462M3	Alternator	Alternator
RE505895	ALTERNATOR (12V, 75A)	Alternator
RE506196	ALTERNATOR	Alternator
RE533516	ALTERNATOR	Alternator
RE533653	ALTERNATOR	Alternator
RE533654	ALTERNATOR	Alternator
RE537146	ALTERNATOR (28V, 50A) (3142)	Alternator
RE537507	ALTERNATOR (12V, 90 A) (31AE)	Alternator
RE537508	ALTERNATOR	Alternator
RE550906	ALTERNATOR	Alternator
RE555751	ALTERNATOR	Alternator
RE558675	ALTERNATOR	Alternator
RE558676	ALTERNATOR	Alternator
RE558678	ALTERNATOR	Alternator
RM100224	ALTERNATOR (REMAN FOR RE505895) (12V, 75A) (3135)	Alternator
SE501341	(REMAN FOR AT161324, DZ114957) (3142)	Alternator
SE502560	(3164)	Alternator
8972824026	Battery Acid charge Pb-Ca maintenance free, 24V - 1100 CCA	Battery
MQ-125-BATTERY	Battery	Battery
DZ114929	FAN BELT (LGTH = 1655 mm)	Belt
DZ115455	FAN BELT (LGTH = 1550 mm)	Belt
DZ115812	FAN BELT (LGTH = 1680 mm)	Belt
DZ117267	FAN BELT (LGTH = 1690 mm)	Belt
DZ117268	FAN BELT (LGTH = 1530 mm)	Belt
DZ118556	FAN BELT	Belt
DZ118557	FAN BELT	Belt
DZ118558	FAN BELT	Belt
DZ118559	FAN BELT	Belt
DZ118560	FAN BELT	Belt
DZ118561	FAN BELT; LGTH = 1750 mm (24JX)	Belt
DZ118764	FAN BELT (LGTH = 1525 mm)	Belt
DZ118781	FAN BELT (LGTH = 1700 mm)	Belt
DZ118786	FAN BELT	Belt
DZ118815	FAN BELT (LGTH = 1725 mm)	Belt
DZ119018	FAN BELT	Belt
DZ119059	FAN BELT	Belt
DZ119060	FAN BELT (LGTH = 1555 mm)	Belt
DZ119061	FAN BELT (LGTH = 1540 mm)	Belt
DZ119062	FAN BELT	Belt
DZ119063	FAN BELT	Belt
DZ119416	FAN BELT	Belt
DZ119477	FAN BELT (LGTH = 1565 mm)	Belt
DZ119478	FAN BELT (LGTH = 1570 mm)	Belt
DZ119515	FAN BELT	Belt
DZ119516	FAN BELT	Belt
DZ119520	FAN BELT	Belt
DZ119521	FAN BELT	Belt
DZ119522	FAN BELT	Belt
DZ119530	FAN BELT (LGTH = 1675 mm)	Belt
DZ119531	FAN BELT	Belt
DZ119533	FAN BELT	Belt
DZ119715	FAN BELT	Belt
DZ121128	FAN BELT; LGTH = 1725 mm (24JW)	Belt
DZ121129	FAN BELT	Belt
DZ121133	FAN BELT	Belt
GM70424-1	Fan Belt (12V)	Belt
GM70424-2	Fan Belt (24V)	Belt
GM70798-1	Fan Belt	Belt
GM70798-2	Fan Belt	Belt
GM70798-3	Fan Belt	Belt
GM70798-4	Fan Belt	Belt
GM84749	Fan Belt	Belt
MQ-125-BELT	V-Belt	Belt
R134625	FAN BELT (LGTH = 1645 mm)	Belt
R500277	FAN BELT	Belt
T282795	FAN BELT	Belt
T428692	FAN BELT (LGTH = 1665 mm)	Belt
T428724	FAN BELT (LGTH = 1575 mm)	Belt
T428725	FAN BELT	Belt
T428818	FAN BELT	Belt
T428820	FAN BELT (LGTH = 1580 mm)	Belt
T428822	FAN BELT	Belt
T428823	FAN BELT	Belt
T428825	FAN BELT	Belt
T428863	FAN BELT	Belt
VP64S17	Pump Belt	Belt
011064	Cold Weather Operation	Cold weather operation
RM100100	CONTROLLER	Controller
RM100131	CONTROLLER	Controller
362140-S	Main controller circuit board	Controller board
MOOOOO-20001Q	Auto START/STOP Engine Controller (ECU)	ECM / ECU
5990101	Power switching device (contactor)	Exerciser switch
MQ-125-FUEL-FILTER	Fuel Filter	Filter
MQ-125-OIL-FILTER	Oil Filter	Filter
G122208	Clarke Eng Fluid - 5 gal	Fluid
G122209	Clarke Eng Fluid -1 gal	Fluid
MQ-125-COOLANT	Coolant	Fluid
MQ-125-OIL	Engine Oil	Fluid
CO2775	Element, Fuel Water Separator	Fuel filter
CO2776	Element, Fuel Filter Primary	Fuel filter
DZ112918	SECONDARY FUEL FILTER	Fuel filter
DZ115392	Secondary Fuel Filter	Fuel filter
DZ122688	SECONDARY FILTER ELEMENT (35E6)	Fuel filter
DZ128543	PRIMARY FUEL FILTER	Fuel filter
GM50006	Fuel Filter	Fuel filter
GM50074	Fuel Filter (primary)	Fuel filter
RE509031	Filter Element	Fuel filter
RE509208	Fuel Filter (Former # RE517181)	Fuel filter
RE520906	PRIMARY FUEL FILTER	Fuel filter
RE541578	CRANKSHAFT PULLEY AND DAMPER; OD = 190 mm (1343)	Fuel filter
RE60021	FINAL FUEL FILTER	Fuel filter
RE62419	FUEL FILTER	Fuel filter
DZ123559	COMPLETE BLOCK ASSEMBLY INCLUDES CYLINDER HEAD WITH VALVES AND ROCKER ARM ASSEMBLY, COMPLETE GASKET KIT WITH FRONT AND REAR SEALS	Gasket
10000037182	Clamp, hose - spring type CTB-27ST	Hose
50332	Hose, fuel .750 ID 35 PSI SAE 30R7	Hose
60316	Clamp, hose - SAE 032 (1.56-2.50)	Hose
GM91647	Hose, Hump	Hose
223673	Filter, oil	Oil filter
352793	Oil Filter	Oil filter
C04521	Element, Oil Filter	Oil filter
DZ118286	OIL FILTER	Oil filter
GM32809	Oil filter	Oil filter
GM64496	Oil Filter	Oil filter
GM77161	Oil Filter	Oil filter
GM86400	Oil Filter	Oil filter
RE504836	OIL FILTER	Oil filter
RE539279	ENGINE OIL FILTER	Oil filter
011068	Status: Generator at Rest, Stop Mode, 22:31	Service part / kit
011136	DANGER Electrocution. Do not disable or modify the connection box door safety switch.	Service part / kit
2x594	Ampere rating	Service part / kit
51551	Decal set, safety	Service part / kit
51552	Decal, high temp	Service part / kit
54005	CAP, DEF FILL	Service part / kit
55104	CAP, FUEL FILL 3.50 - GREEN	Service part / kit
6068HF120-183	Engine	Service part / kit
9753300442	Oil sample kit	Service part / kit
DCA-125USJ	Battery Connections	Service part / kit
DCA-150USJ	Battery Connections	Service part / kit
DZ100304	Diesel Exhaust Fluid Inline Filter	Service part / kit
DZ105100	CRANKCASE VENT FILTER	Service part / kit
DZ105796	OCV FILTER	Service part / kit
DZ109870	SHORT BLOCK ASSEMBLY	Service part / kit
DZ110282	SHORT BLOCK ASSEMBLY	Service part / kit
DZ110562	Crankcase Vent System (USE WITH DZ113378 974G)	Service part / kit
DZ110563	TANK HEADER SUCTION SCREEN (974J)	Service part / kit
DZ111004	DEF TANK HEADER FILTER (25 Micron)	Service part / kit
DZ111166	(3402) (3404) (3408) (3409) (974G)	Service part / kit
DZ113378	TANK HEADER SUCTION SCREEN (974G)	Service part / kit
DZ114640	DIESEL EXHAUST FLUID (DEF) DOSING UNIT FILTER	Service part / kit
DZ114641	DIESEL EXHAUST FLUID INLINE-FILTER (3308)	Service part / kit
DZ114642	DIESEL EXHAUST FLUID INLINE-FILTER (3310)	Service part / kit
DZ114643	DIESEL EXHAUST FLUID INLINE-FILTER (3309)	Service part / kit
DZ114644	DIESEL EXHAUST FLUID INLINE-FILTER (3316)	Service part / kit
DZ114645	DIESEL EXHAUST FLUID INLINE-FILTER (3315)	Service part / kit
DZ114646	DIESEL EXHAUST FLUID INLINE-FILTER (3317)	Service part / kit
DZ114647	DIESEL EXHAUST FLUID INLINE-FILTER (3318)	Service part / kit
DZ114695	DEF TANK INLET SCREEN	Service part / kit
DZ119883	TORSIONAL DAMPER	Service part / kit
G122191	250 hour Maintenance Kit (without fluids)	Service part / kit
G122196	250 hour Maintenance Kit (& engine fluids)	Service part / kit
G122201	500 hour Maintenance Kit (without fluids)	Service part / kit
G122206	500 hour Maintenance Kit (& Engine fluids)	Service part / kit
GM75552	Block Heater Kit	Service part / kit
GM75553	Block Heater Kit	Service part / kit
M2870400404	Parts List No.	Service part / kit
R113480	FAN PULLEY	Service part / kit
R128658	FAN PULLEY	Service part / kit
R128659	FAN PULLEY	Service part / kit
R128660	FAN PULLEY	Service part / kit
R128662	FAN PULLEY (OD = 203 mm)	Service part / kit
R133295	CRANKSHAFT PULLEY (OD = 169 mm)	Service part / kit
R133296	CRANKSHAFT PULLEY & DAMPER	Service part / kit
R522890	FAN PULLEY	Service part / kit
R545125	CRANKSHAFT PULLEY (OD = 188 mm)	Service part / kit
RE500013	CRANKSHAFT PULLEY & DAMPER	Service part / kit
RE505881	(OD = 168 mm) (1324)	Service part / kit
RE505940	(6895)	Service part / kit
RE505941	(OD = 188 mm)	Service part / kit
RE520385	SHORT BLOCK ASSEMBLY	Service part / kit
RE553703	VENT SYSTEM FILTER	Service part / kit
RE571655	Short Block Assembly	Service part / kit
RE57604	TORSIONAL DAMPER	Service part / kit
RE59355	CRANKSHAFT PULLEY & DAMPER	Service part / kit
SE501094	CONNECTING ROD (REMAN FOR RE500608) (4838)	Service part / kit
SE501581	CYLINDER HEAD (REMAN FOR RE57489) (5107)	Service part / kit
RE505939	(1321)	Pulley
RE508578	CRANKSHAFT PULLEY & DAMPER (OD = 264 mm) (1320)	Pulley
RE528428	CRANKSHAFT PULLEY & DAMPER (OD = 264 mm) (1340)	Pulley
SE501236	FUEL INJECTION PUMP (REMAN FOR RE518088) (16L8, 16L9)	Pump
SE501609	WATER PUMP	Pump
SE501814	OIL PUMP (REMAN FOR DZ100057) (5001)	Pump
SE502637	WATER PUMP (REMAN FOR RE539093) (2052)	Pump
MQ-125-SPARK-PLUG	Spark Plug	Spark plug
2.03	Starter motor rated	Starter
2.76	Starter motor rated	Starter
DZ110068	Starter Motor (12V)	Starter
DZ110083	STARTER	Starter
DZ129200	STARTER	Starter
RE501150	STARTER	Starter
RE501166	STARTER	Starter
RE515688	STARTER	Starter
RE523501	STARTER (3073)	Starter
RE523502	STARTER	Starter
RE540301	STARTER (12V, 2.5KW) (3005)	Starter
RE540302	STARTER	Starter
RE546868	STARTER	Starter
RE549229	STARTER	Starter
RE549230	STARTER	Starter
RE551637	STARTER (12 V)	Starter
RE551644	STARTER	Starter
RE552251	STARTER	Starter
RE564633	STARTER	Starter
RE64474	STARTER	Starter
RE65175	STARTER	Starter
RE65189	STARTER	Starter
RE70474	STARTER	Starter
RE70756	STARTER (12 V)	Starter
RE70957	STARTER	Starter
RE70960	STARTER	Starter
RE70961	STARTER	Starter
SE501401	STARTER (REMAN FOR RE540301) (12 V, 2.5 KW)	Starter
SE502558	STARTER MOTOR REMAN FOR RE549229 12V	Starter
SE502631	(REMAN FOR RE523501) (12V, 4.2KW) (3073)	Starter
SE502632	STARTER	Starter
SE502733	STARTER	Starter
SE502736	STARTER	Starter
SE502823	STARTER	Starter
SE502333	TURBOCHARGER (REMAN FOR RE509435) (65EC)	Turbocharger

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Aftermarket parts that fit this engine

RE66153 Amazon eBay FridayParts $35.34 RE503664 FridayParts $244.00 R502014 FridayParts $244.00 RE70357 FridayParts $45.00 KuduParts $45.00 RE500160 FridayParts $38.99 KuduParts $39.50 RE70358 KuduParts $39.50 FridayParts $45.00 RE65969 FridayParts $554.20 RE507850 FridayParts $554.20 AR65507 Amazon eBay FridayParts $27.20 R502983 FridayParts $107.60 R51936 Amazon eBay $29.99 FridayParts $17.68 R63603 FridayParts $17.68 AT106413 KuduParts $33.00 FridayParts $35.89 RE539558 FridayParts $19.55 AT162597 FridayParts $82.15 KuduParts $86.00 RE500608 Amazon eBay $70.24 FridayParts $73.99 RE538097 FridayParts $22.89 DZ111671 FridayParts $22.89 RE505515 FridayParts $22.89 4.0KW FridayParts $172.20 SinoCMP $339.00 RE522334 FridayParts $315.20 01912354 FridayParts $315.20 RE516553 eBay FridayParts $15.50 R500277 Amazon eBay $45.00 NAPA $48.47 FridayParts $41.09 RE502014 FridayParts $168.56 R79605 FridayParts $16.99 RE43593 FridayParts $25.99 DB4629-5796 FridayParts $1648.56 RE509497 FridayParts $1648.56 DB4629-5592 FridayParts $1599.75 RE502620 FridayParts $1599.75 RE505921 FridayParts $1750.99 R48000 Amazon eBay FridayParts $9.68 R34767 FridayParts $9.68 RE517382 FridayParts $132.23 RE502079 FridayParts $53.46 RE29658 FridayParts $53.46 R524481 FridayParts $21.99 RE57489 FridayParts $2706.50 RE526834 Amazon eBay FridayParts $29.63 RE533516 Amazon eBay $110.00 NAPA $301.10 FridayParts $100.49 SE501387 Amazon eBay $110.00 FridayParts $100.49 AT173624 eBay FridayParts $100.49 SE501835 Amazon eBay $136.50 NAPA $301.10 FridayParts $100.49 SE501823 Amazon eBay FridayParts $175.96 77HP FridayParts $175.96 1999-2004 FridayParts $11.99 RE522329 FridayParts $632.50 RE540413 Amazon eBay FridayParts $234.60 RE526690 FridayParts $234.60 RE525690 FridayParts $234.60 RE525689 SinoCMP $259.00 FridayParts $287.30 RE540412 Amazon eBay SinoCMP $259.00 FridayParts $287.30 R132267 FridayParts $178.95 RE55512 FridayParts $389.00 RE505102 FridayParts $1475.70

Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.

Also used in

John Deere 200LC — Excavator
John Deere 360DC — Skid Steer Loader
John Deere 360DG — Skid Steer Loader
John Deere 460DG — Skidder
John Deere 540G II — Skidder
John Deere 540G III — Skidder
John Deere 548G — Skidder
John Deere 548G II — Skid Steer Loader
John Deere 640D — Skid Steer Loader
John Deere 648D — Skidder
John Deere 790E LC — Excavator
John Deere 9400 — Combine

Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.

Common questions

What is the displacement of the John Deere 6068TFM50?

The John Deere 6068TFM50 has a displacement of 6.8 liters with 6 cylinders.

Which generators use the John Deere 6068TFM50 engine?

The John Deere 6068TFM50 powers 2 generator set(s), including John Deere 6068TFM50, PowerTech 6068TFM50.