The John Deere 6068TF250 is a 6.8 L 6-cylinder turbocharged engine rated at 1800 rpm, producing up to 128 kW. It powers generator sets from Atlas Copco, John Deere, Kohler and MQ Power, including the QAS 108, 100REOZJ and DCA-125SSJU.
Also known as: JOHN DEERE 6068TF250
Part of the John Deere 6068 engine family — 92 variants share parts & fitment.
The cheapest captured merchant offer per filter — see the full cross-reference below for every OEM/aftermarket option.
Prices captured from merchant listings; some links are affiliate links. Verify against your serial number before ordering.
| Displacement | 6.8 L |
|---|---|
| Cylinders | 6 |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
| Gross power | 128 kW |
Shared across brands: Atlas Copco, John Deere, Kohler, MQ Power
| Symptom | Cause | Remedy |
|---|---|---|
| Alternator does not excite | Blown fuse | Replace fuse |
| Alternator does not excite | Insufficient voltage | Increase speed by 15% |
| Alternator does not excite | No residual voltage | For an instant apply on the + and – terminals of the electronic regulator a 12 V battery voltage with a 30 ? resistor in series respecting the polarities |
| After being excited, alternator does not excite | Connections are interrupted | Check connection cables per drawings |
| Low voltage at no load | Voltage potentiometer out of setting | Reset voltage |
| Low voltage at no load | Intervention of protection | Check RPM |
| Low voltage at no load | Winding failure | Check windings |
| High voltage at no load | Voltage potentiometer out of setting | Reset voltage |
| High voltage at no load | Failed regulator | Substitute regulator |
| Lower than rated voltage at load | Voltage potentiometer out of setting | Reset voltage potentiometer |
| Lower than rated voltage at load | Intervention by protection | Current too high, power factor lower than 0.8, speed lower than 4% of rated speed |
| Lower than rated voltage at load | Failed regulator | Substitute regulator |
| Higher than rated voltage | Voltage potentiometer out of setting | Reset voltage |
| Higher than rated voltage | Failed regulator | Substitute regulator |
| Unstable voltage | Speed variation in engine | Check engine rotation |
| Unstable voltage | Regulator out of setting | Regulate the stability of regulator by acting on “STABILITY” potentiometer |
| Engine cranks but will not start | Incorrect starting procedure | Verify correct starting procedure |
| Engine cranks but will not start | No fuel | Check fuel in tank and manual shut-off valve |
| Engine cranks but will not start | Exhaust restricted | Check and correct exhaust restriction |
| Engine cranks but will not start | Fuel filter plugged or full of water | Replace fuel filter or drain water from filter |
| Engine cranks but will not start | Injection pump not getting air or fuel | Check fuel flow at supply pump or bleed fuel system |
| Engine cranks but will not start | Faulty injection pump or nozzles | Consult authorized diesel repair station |
| Engine hard to start or will not start | Improper starting procedure | Verify correct starting procedure |
| Engine hard to start or will not start | No fuel | Check fuel tank |
| Engine hard to start or will not start | Air in fuel line | Bleed fuel line |
| Engine hard to start or will not start | Cold weather | Use cold weather starting aids |
| Engine hard to start or will not start | Slow starter speed | See “Starter cranks slowly” |
| Engine hard to start or will not start | Crankcase oil too heavy | Use oil of proper viscosity |
| Engine hard to start or will not start | Improper type of fuel | Consult fuel supplier; use proper type of fuel for operating conditions |
| Engine hard to start or will not start | Water, dirt or air in fuel system | Drain, flush, fill, and bleed system |
| Engine hard to start or will not start | Clogged fuel filter | Replace filter element |
| Engine hard to start or will not start | Dirty or faulty injection nozzles | Consult authorized diesel repair station |
| Engine hard to start or will not start | Low engine oil level | Add oil to engine crankcase |
| Engine hard to start or will not start | Injection pump out of time | See your authorized servicing dealer or engine distributor |
| Engine hard to start or will not start | Low coolant temperature | Remove and check thermostat |
| Engine knocks | Engine overheating | See “Engine Overheats” |
| Engine knocks | Low coolant temperature | Remove and check thermostat |
| Engine knocks | Clogged fuel filter | Replace fuel filter element |
| Engine knocks | Water, dirt, or air in fuel system | Drain, flush, fill and bleed system |
| Engine knocks | Dirty or faulty injection nozzles | See your authorized servicing dealer or engine distributor |
| Engine runs irregularly or stalls frequently | Defective thermostat | Remove and check thermostat |
| Engine runs irregularly or stalls frequently | Defective temperature gauge or sender | Check gauge, sender and connections |
| Below normal engine temperature | Defective thermostat | Remove and check thermostat |
| Below normal engine temperature | Defective temperature gauge or sender | Check gauge, sender and connections |
| Lack of power | Engine overloaded | Reduce load |
| Lack of power | Intake air restriction | Service air cleaner |
| Lack of power | Clogged fuel filter | Replace filter elements |
| Lack of power | Improper type of fuel | Use proper fuel |
| Lack of power | Overheated engine | See “Engine Overheats” |
| Lack of power | Below normal engine temperature | Remove and check thermostat |
| Lack of power | Improper valve clearance | See your authorized servicing dealer or engine distributor |
| Lack of power | Dirty or faulty injection nozzles | See your authorized servicing dealer or engine distributor |
| Lack of power | Injection pump out of time | See your authorized servicing dealer or engine distributor |
| Lack of power | Turbocharger not functioning | See your authorized servicing dealer or engine distributor |
| Lack of power | Leaking exhaust manifold gasket | See your authorized servicing dealer or engine distributor |
| Lack of power | Defective aneroid control line | See your authorized servicing dealer or engine distributor |
| Lack of power | Restricted fuel hose | Clean or replace hose |
| Lack of power | Low fast idle | See your authorized servicing dealer or engine distributor |
| Low oil pressure | Low oil level | Add oil |
| Low oil pressure | Improper type of oil | Drain, fill crankcase with proper viscosity and quality |
| Low oil pressure | Crankcase oil too light | Use proper viscosity oil |
| Low oil pressure | Oil leaks | Check for leaks in lines, gaskets, and drain plug |
| Low oil pressure | Restricted crankcase vent tube | Clean vent tube |
| High oil consumption | Defective turbocharger | See your authorized servicing dealer or engine distributor |
| High oil consumption | Improper type of fuel | Use proper fuel |
| High oil consumption | Low engine temperature | Warm up engine to normal operating temperature |
| High oil consumption | Defective thermostat | Remove and check thermostat |
| High oil consumption | Defective injection nozzles | See your authorized servicing dealer or engine distributor |
| Engine emits white smoke | Engine out of time | See your authorized servicing dealer or engine distributor |
| Engine emits white smoke | Improper type of fuel | Use proper fuel |
| Engine emits white smoke | Clogged or dirty air cleaner | Service air cleaner |
| Engine emits white smoke | Engine overloaded | Reduce load |
| Engine emits white smoke | Injection nozzles dirty | See your authorized servicing dealer or engine distributor |
| Engine emits black or gray exhaust smoke | Turbocharger not functioning | See your authorized servicing dealer or engine distributor |
| Engine emits black or gray exhaust smoke | Engine overloaded | Reduce load |
| Engine overheats | Low coolant level | Fill radiator to proper level, check radiator and hoses for loose connections or leaks |
| Engine overheats | Faulty radiator cap | Have service company check |
| Engine overheats | Stretched poly-vee belt or defective belt tension | Check automatic belt tensioners and check belts for stretching. Replace as required |
| Engine overheats | Low engine oil level | Check oil level. Add as required |
| Engine overheats | Cooling system needs flushing | Flush cooling system |
Fault codes and symptom→remedy steps extracted from this engine’s service/owner documentation; verify against the official manual before servicing. Showing the first 80 of 102 entries.
Compiled from service & troubleshooting documentation across every generator set that uses the John Deere 6068TF250.
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Fuel filter | — | 500 hr | |||
| Oil filter | 360031 | 500 hr | Amazon eBay $37.99 NAPA $27.91 FridayParts $34.99 | ||
| Battery | — | ||||
| Belt | — | 250 hr | |||
| Coolant | -35F | — | |||
| Coolant filter | — | ||||
| Oil | — | 500 hr | |||
| Spark plug | — | 500 hr |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
Step-by-step procedures compiled from the John Deere service manual for this engine.
| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Engine Oil and Oil Filter | Change | 250 hr | 6 mo | First service — First change before 100 hours maximum of break-in operation |
| Engine oil and filter | Change | 100 hr | First service — First service: change at maximum 100 hours of break-in operation | |
| Battery | Check | 250 hr | 6 mo | Service battery |
| Battery | Other | 250 hr | 6 mo | Service battery |
| Engine Mounts | Check | 250 hr | 6 mo | |
| Fire Extinguisher | Other | 250 hr | 250 Hour/6 Month; also inspect once a month | |
| Fire extinguisher | Check | 250 hr | 6 mo | Standard industrial engines; at least once a month |
| Manual Belt Tensioner and Belt Wear | Check | 250 hr | 6 mo | |
| Air Intake Hoses, Connections, & System | Check | 500 hr | 12 mo | |
| Automatic Belt Tensioner and Belt Wear | Check | 500 hr | 12 mo | |
| Coolant solution analysis - add SCAs as required | Test | 500 hr | 12 mo | Test every 500 hours or 12 months |
| Cooling System | Check | 500 hr | 12 mo | |
| Cooling System | Test | 500 hr | 12 mo | Pressure test cooling system |
| Crankcase Vent Tube | Clean | 500 hr | 12 mo | Clean more often in dusty conditions |
| Engine Electrical Ground Connection | Check | 500 hr | 12 mo | |
| Engine speeds | Check | 500 hr | 12 mo | |
| Fuel Filter Element | Replace | 500 hr | 12 mo | Bleed fuel system |
| Single or dual fuel filter elements | Replace | 500 hr | 12 mo | |
| Cooling System | Other | 2000 hr | 24 mo | Flush; with COOL-GARD extend to 3000 hours/36 months, or 5000 hours/60 months if tested annually and SCAs replenished |
| Cooling system | Drain | 2000 hr | 24 mo | Flush/refill; with COOL-GARD extend to 3000 hours or 36 months; to 5000 hours or 60 months if tested annually and SCAs replenished |
| Crankshaft vibration damper (6.8 L engines) | Check | 2000 hr | 24 mo | Replace every 4500 hours or 60 months, whichever occurs first |
| Engine valve clearance | Adjust | 2000 hr | 24 mo | Check and adjust |
| Thermostats | Test | 2000 hr | 24 mo | |
| Variable speed (droop) (generator sets) | Adjust | 2000 hr | 24 mo | Generator (standby) applications |
| 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.
| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Clearance | Air Cleaner Neck to Engine Intake—Overlap | 38 mm (1.5 in) | mm | |
| 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 Clearance For Adjusting (Rocker Arm-to-Valve Tip) | 0.46 mm (0.018 in.) | mm | engine COLD |
| Clearance | Exhaust Valve Clearance For Checking (Rocker Arm-to-Valve Tip) | 0.41—0.48 mm (0.016—0.019 in.) | mm | engine COLD |
| 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 | Fuel injection nozzle tip orifice ID | 0.27 | mm (0.0106 in.) | Naturally aspirated engines |
| Clearance | Fuel injection nozzle tip orifice ID | 0.29 | mm (0.0116 in.) | Turbocharged engines |
| Clearance | Fuel injection nozzle valve needle lift (based on zero lift) | 3/4 Turn Counterclockwise | turn | Conventional nozzle |
| Clearance | Intake Valve Clearance For Adjusting (Rocker Arm-to-Valve Tip) | 0.36 mm (0.014 in.) | mm | engine COLD |
| Clearance | Intake Valve Clearance For Checking (Rocker Arm-to-Valve Tip) | 0.31—0.38 mm (0.012—0.015 in.) | mm | engine COLD |
| 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.) | |
| Clearance | Valve lift | 7/8 | turn | RSN nozzle, Tier II certified engines |
| Clearance | Vibration Damper—Maximum Radial Runout | 1.50 mm (0.060 in.) | mm | engine at operating temperature |
| Clearance | Vibration damper maximum radial runout | 1.50 | mm | engine at operating temperature |
| Gap | Magnetic pick-up probe air gap to flywheel face | 0.64 | mm (0.025 in.) | |
| Gap | Valve Face—Maximum Runout (Intake and Exhaust) | 0.038 | mm (0.0015 in.) | |
| Other | 10 in. weld flange bolt circle diameter B | 361.95 | mm (14.25 in.) | |
| Other | 10 in. weld flange outside diameter C | 406.4 | mm (16.0 in.) | |
| Other | 10 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 12 in. weld flange bolt circle diameter B | 431.80 | mm (17.00 in.) | |
| Other | 12 in. weld flange outside diameter C | 482.6 | mm (19.0 in.) | |
| Other | 12 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 14 in. weld flange bolt circle diameter B | 476.25 | mm (18.75 in.) | |
| Other | 14 in. weld flange outside diameter C | 533.4 | mm (21.0 in.) | |
| Other | 14 in. weld flange quantity of bolts / bolt hole diameter D | 12, 28.58 | mm (1.13 in.) | |
| Other | 16 in. weld flange bolt circle diameter B | 539.75 | mm (21.25 in.) |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Coolant | Ethylene glycol base coolant | ASTM D6210 | Freeze protection: 40%=-24°C (-12°F); 50%=-37°C (-34°F); 60%=-52°C (-62°F) | ||
| Coolant | John Deere COOL-GARD II / COOL-GARD II PG pre-mix | ASTM D6210 | Or concentrate in 40—60% mixture with quality water. Do not use less than 40% or greater than 60% concentrate. | ||
| 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. | ||
| Coolant | John Deere COOL-GARD Prediluted Coolant (preferred); John Deere COOL-GARD Coolant Concentrate 40-60% mixture with quality water | ASTM D5345 (prediluted) / ASTM D4985 (concentrate) | 50% ethylene glycol provides freeze protection to -37°C (-34°F); 40% to -24°C (-12°F); 60% to -52°C (-62°F). Do not exceed 60%. | ||
| 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%. | ||
| Engine oil | John Deere PLUS-50 (preferred); John Deere TORQ-GARD SUPREME (also recommended) | API CI-4 / CH-4 / CG-4 / CF-4; ACEA E5 / E4 / E3 / E2 | Multi-viscosity diesel engine oils preferred. If fuel sulfur >0.5% (5000 ppm), reduce service interval by 50%. During first 100 hours of new/overhauled engine use John Deere ENGINE BREAK-IN OIL or API CD/CC or ACEA E1. | ||
| Engine oil | SAE 10W-30 (if John Deere Break-In oil not available) | API CE, CD, CC; ACEA E2 or E1 | Break-in oil; change oil and filter at maximum 100 hours. Do not use Plus-50 II or CJ-4/CI-4/CH-4 etc. for initial break-in. | ||
| Engine oil | SAE 15W-40, SAE 10W-40, SAE 10W-30, SAE 5W-30, SAE 0W-40, SAE 30, SAE 40 | John Deere Plus-50 II (preferred), Plus-50, Torq-Gard; API CJ-4, CI-4 PLUS, CI-4, CH-4, CG-4, CF-4; ACEA E9, E7, E6, E5, E4, E3, E2 | Use oil viscosity based on expected air temperature range between oil changes. Reduce service interval by 50% if API CG-4, API CF-4 or ACEA E2 oils used. | ||
| Fuel | EN 590 or ASTM D975 | Cetane number 40 minimum (greater than 50 preferred, especially below -20°C (-4°F) or above 1500 m (5000 ft)). Cold Filter Plugging Point below expected low temperature or Cloud Point at least 5°C (9°F) below expected low temperature. Fuel lubricity should pass minimum 3100 gram load level (BOCLE scuffing test) / ASTM D6078 or max scar diameter 0.45 mm ASTM D6079 / ISO 12156-1. Sulfur content should not exceed 0.5% (less than 0.05% preferred); DO NOT use fuel with sulfur content greater than 1.0%. Do not mix used engine oil with diesel fuel. | |||
| Fuel | 5% blend (B5) | ASTM D6751, EN 14214, or equivalent | Bio-diesel maximum allowable concentration is a 5% blend (B5) in petroleum diesel fuel. Check engine oil level daily when air temperature is -10°C (14°F) or lower. Raw pressed vegetable oils are NOT acceptable at any concentration. | ||
| 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). | ||
| Fuel | Diesel fuel per EN 590 or ASTM D975 | EN 590 / ASTM D975 | Cetane number 40 minimum, greater than 47 preferred below -20°C (-4°F) or above 1675 m (5500 ft). Max sulfur 10000 mg/kg (10000 ppm). | ||
| Fuel | Grade No. 1-D fuel usable below 5°C (40°F); Grade No. 2-D otherwise | EN 590 or ASTM D975 | Cetane number 45 minimum (>50 preferred). Lubricity min load 3100 grams (ASTM D6078) or max scar diameter 0.45 mm (ASTM D6079). Sulfur <0.05% (500 ppm) preferred; DO NOT use sulfur >1.0%. Bio-diesel per ASTM PS121 or DIN 51606, up to 5% blend. | ||
| Fuel | Winter grade fuel (No. 1-D in North America) | below 0°C | Use when temperatures fall below 0°C (32°F) | ||
| 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. | ||
| Grease | John Deere SD POLYUREA GREASE (preferred); HD MOLY GREASE, HD LITHIUM COMPLEX GREASE, HD WATER RESISTANT GREASE, GREASE-GARD (also recommended) | NLGI Performance Classification GC-LB | Some grease thickener types are not compatible; consult supplier before mixing. | ||
| Other | John Deere COOLANT CONDITIONER / Liquid Coolant Conditioner (supplemental coolant additive) | Replenish between drain intervals every 12 months or as determined by coolant testing; premix 3% when precharging. DO NOT add SCA when drained and refilled with COOL-GARD. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
⚠ Do not manually bottom the valve with excessive force; bending of the valve may result.
Tools: JDG949 Nozzle Wrench, JDG1515-2 Pressure Adjustment Screw Lock Nut Tool, JDG1522 Pressure Adjustment Screw Tool, JDG1521 Spring Chamber Cap Wrench
⚠ Stop engine prior to making timing adjustments; injection pump can seize if adjustment is made with engine running.
Tools: JT07158 (FKM10429A) TIME TRAC Kit, JT07177 Clamp-On Transducer, JT07172 Transducer Cable, JDG793 or JDG821 Magnetic Pick-Up Adapter, JDE81-4 or JDG1571 Timing Pin
⚠ ALWAYS STOP ENGINE before making adjustments.
⚠ Bumper spring screw should not be used by itself to change engine speed more than 50 rpm.
Tools: Tachometer
⚠ Valve clearance MUST BE checked and adjusted with engine COLD.
⚠ To prevent accidental starting, always disconnect NEGATIVE (—) battery terminal.
Tools: JDE83 or JD81-1 Flywheel Turning Tool, JDG1571 or JDE81-4 Timing Pin, Feeler gauge, JDG966 Crankshaft Front/Rear Rotation Adapter
⚠ 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
⚠ 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
⚠ Do not pry against alternator rear frame.
Tools: JDG1341 Belt Tension Gauge
Tools: JDG1520 Belt Tension Tool, Torque wrench
⚠ After checks are completed, return cold start circuits to original configuration to ensure proper injection pump timing and conformance to emission control standards.
Tools: JT07158 (FKM10429A) TIME TRAC Kit, Jumper wire
⚠ Measure at 0.00 mm clearance and with engine COLD
Tools: JDG1571 or JDE81-4 Timing Pin, Flywheel turning tool, Dial indicator
⚠ Explosive release of fluids from pressurized cooling system can cause serious burns. Only remove filler cap when cool enough to touch with bare hands.
Tools: D05104ST Tester
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
| Part # | Description | Category |
|---|---|---|
| 100-001 | Air Filter | Air filter |
| 24-21000 | Air Filter | Air filter |
| 60205 | MOUNT, CONTROL BOX - COMMON | Air filter |
| 85400737 | OUTER AIR FILTER | Air filter |
| 85400786 | INNER AIR FILTER | Air filter |
| 85403921 | AIR FILTER HEAVY DUTY | Air filter |
| C03327 | Air Cleaner | Air filter |
| C03396 | AIR FILTER | Air filter |
| G030077 | Air Cleaner Element (Engine) Primary | Air filter |
| G030078 | Air Cleaner Element (Engine) Secondary | Air filter |
| GM100703 | Element, Primary | Air filter |
| GM100704 | Element, Safety | Air filter |
| GM90735 | Air Cleaner | Air filter |
| GM91358 | Element, Air Cleaner | Air filter |
| GM92823 | Element, Air Cleaner Safety | Air filter |
| GM94203 | Heavy Duty Air Cleaner | 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 12 Volt 55 Amp | 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 |
| SE502628 | ALTERNATOR (REMAN FOR RE533654) (12V, 120A) (3141) | Alternator |
| 85402451 | VOLTAGE REGULATOR | Avr |
| 8972824026 | Battery Acid charge Pb-Ca maintenance free, 24V - 1100 CCA | Battery |
| MQ-125-BATTERY | Battery | Battery |
| 85425460 | BELT | Belt |
| 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 |
| L114292 | FAN BELT | Belt |
| MQ-125-BELT | V-Belt | Belt |
| R123308 | Drive Belt, L1066H Late Production and M1066H all | Belt |
| R123437 | Drive Belt, LP-MP668T-H (with turbo) | Belt |
| R123439 | Drive Belt, LP-MP445D (non-turbo) | Belt |
| R123457 | Drive Belt LP-MP668T-H (with turbo, formerly #R123464) | Belt |
| R123464 | Drive Belt, LP668D (non-turbo, replaces R123463) | Belt |
| R134625 | FAN BELT (LGTH = 1645 mm) | Belt |
| R500277 | FAN BELT | Belt |
| RE518097 | Belt Tensioner | 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 |
| SE502800 | CONTROLLER | Controller |
| SE502801 | CONTROLLER (REMAN FOR RE520953) (8498) (8420) (8414) | Controller |
| 362140-S | Main controller circuit board | Controller board |
| 950-1682 | Coolant filter | Coolant filter |
| MOOOOO-20001Q | Auto START/STOP Engine Controller (ECU) | ECM / ECU |
| RE522680 | Short Block Assembly (L-M1066H and NL1066H4) | Engine |
| 5990101 | Power switching device (contactor) | Exerciser switch |
| 950-1683 | Pilot Hydraulic Filter | Filter |
| 950-2002 | Secondary Fuel Filter | Filter |
| MQ-125-FUEL-FILTER | Fuel Filter | Filter |
| MQ-125-OIL-FILTER | Oil Filter | Filter |
| 85403756 | BATTERY ELECTROLYTE | Fluid |
| 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 |
| TY22041 | John Deere ENGINE BREAK-IN OIL (SAE 10W-30) | Fluid |
| 24-51003 | Fuel Filter without Drain Valve | Fuel filter |
| 24-51005 | Fuel Filter with Metal Drain Valve | Fuel filter |
| 85400976 | FUEL FILTER | Fuel filter |
| 85403525 | FUEL FILTER SEPARATOR | Fuel filter |
| 85431120 | FUEL FILTER | Fuel filter |
| 950-2001 | Fuel Filter | Fuel filter |
| 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 |
| P-205-003 | Fuel Filter | Fuel filter |
| RE509031 | Filter Element | Fuel filter |
| RE5090362 | Fuel filter | Fuel filter |
| RE509208 | Filter Element (also order R113565) | Fuel filter |
| RE520906 | PRIMARY FUEL FILTER | Fuel filter |
| RE522878 | Fuel filter | Fuel filter |
| RE541578 | CRANKSHAFT PULLEY AND DAMPER; OD = 190 mm (1343) | Fuel filter |
| RE541922 | PRIMARY FUEL FILTER | Fuel filter |
| RE60021 | FINAL FUEL FILTER | Fuel filter |
| RE62419 | FUEL FILTER | Fuel filter |
| SE501934 | (16CB) | Fuel injection nozzle |
| 11-11013 | Gasket, Thermostat Cover Mounting | Gasket |
| 11-11023 | Gasket, Manifold to Expansion Tank | Gasket |
| 11-11043 | Gasket | Gasket |
| 11-21011 | Gasket | Gasket |
| 11-31031 | Gasket, Turbo Oil Return | Gasket |
| 11-31615 | Gasket | Gasket |
| 11-31635 | Gasket, Turbo Exhaust (K27) | Gasket |
| 33702 | GASKET KIT | Gasket |
| 36476 | GASKET KIT | Gasket |
| 85401131 | ROCKER COVER GASKET | Gasket |
| DZ123559 | COMPLETE BLOCK ASSEMBLY INCLUDES CYLINDER HEAD WITH VALVES AND ROCKER ARM ASSEMBLY, COMPLETE GASKET KIT WITH FRONT AND REAR SEALS | Gasket |
| R116516 | Engine Cylinder Head Gasket | Gasket |
| R123226 | Gasket, Water By-pass Tube | Gasket |
| R123345 | Gasket, Thermostat Housing | Gasket |
| R123354 | Gasket, Engine Oil Pan | Gasket |
| R123417 | Gasket, Water Pump | Gasket |
| R123501 | Gasket | Gasket |
| R123504 | Gasket, Remote Oil Filter Adapter | Gasket |
| R123525 | Gasket | Gasket |
| R123543 | Gasket, Rocker Arm Cover | Gasket |
| R123570 | Gasket | Gasket |
| R123572 | Gasket | Gasket |
| R135896 | Gasket | Gasket |
| R500374 | Gasket | Gasket |
| R504882 | Gasket, Rocker Arm Cover Mounting | Gasket |
| R53108 | Gasket, Starting Motor | Gasket |
| R90658 | Gasket, Exhaust Manifold | Gasket |
| 10000037182 | Clamp, hose - spring type CTB-27ST | Hose |
| 18-19501 | Hose 1-1/4" ID x 3-1/2" 3 Ply Silicone | Hose |
| 18-21016 | Hose, 2" I.D. x 1-3/4" 3 Ply Silicone | Hose |
| 18-31605 | Hose, 1-1/4 x 32" Wire Reinforced | Hose |
| 50332 | Hose, fuel .750 ID 35 PSI SAE 30R7 | Hose |
| 60316 | Clamp, hose - SAE 032 (1.56-2.50) | Hose |
| 85401289 | RADIATOR TOP HOSE | Hose |
| 85426005 | RADIATOR BOTTOM HOSE | Hose |
| GM62396 | Hose, Reducer | Hose |
| GM91647 | Hose, Hump | Hose |
| R128455 | Hose, Radiator Inlet | Hose |
| R128456 | Hose, Radiator Outlet | Hose |
| 25-11011 | Impeller with Gasket | Impeller |
| 25-15704 | Impeller | Impeller |
| 35104 | NOZZLE CLAMP ASSEMBLY | Injector |
| 85400893 | INJECTOR | Injector |
| RE48786 | Fuel Injector (with turbocharger, includes keys 2-3) | Injector |
| RE519730 | Fuel Injector | Injector |
| RE60062 | Fuel Injector (without turbocharger, includes keys 2-3) | Injector |
| Y5020 | DEF Dosing Injector | Injector |
| Y5021 | Fuel Injector Harness | Injector |
| 223673 | Filter, oil | Oil filter |
| 24-01002 | Oil Filter | Oil filter |
| 352793 | Oil Filter | Oil filter |
| 36881696 | ELEMENT, ENGINE OIL FILTER | Oil filter |
| 950-1681 | Engine Oil Filter | Oil filter |
| C04521 | Element, Oil Filter | Oil filter |
| DZ118286 | OIL FILTER | Oil filter |
| GM32809 | FILTER, OIL | Oil filter |
| GM64496 | Oil Filter | Oil filter |
| GM77161 | Oil Filter | Oil filter |
| GM86400 | Oil Filter | Oil filter |
| LF3703 | Lube, Spin-On | Oil filter |
| P-175-002 | Oil Filter | Oil filter |
| RE504836 | OIL FILTER | Oil filter |
| RE539279 | ENGINE OIL FILTER | Oil filter |
| SE501813 | (REMAN FOR DZ100021) (5024) | Oil pump |
| 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 |
| 05-79650 | Soundshield | Service part / kit |
| 100REOZJ4 | Stationary non-emergency gen-sets | Service part / kit |
| 12547 | Assembly, cam lock, qrtr turn | Service part / kit |
| 12632 | Lug Door Safety Swtiches(2) | Service part / kit |
| 14203 | Block, terminal - 10 pos. | Service part / kit |
| 14204 | Kit, ground bar | Service part / kit |
| 17776 | THROTTLE SHAFT BUSHING REPLACEMENT | Service part / kit |
| 18556 | Regulator, voltage - SE 350 | Service part / kit |
| 18893 | Handle, lug door | Service part / kit |
| 18934 | Guard, potentiometer | Service part / kit |
| 20-29601-1 | Element, Intake Aftercooler | Service part / kit |
| 21-10000 | Zinc Plug | Service part / kit |
| 21-10010 | Zinc Anode | Service part / kit |
| 22018 | Hinge, continuous - 10.25 | Service part / kit |
| 22208 | Hinge, control panel - 28” | Service part / kit |
| 23025 | Light, interior control panel | Service part / kit |
| 23093 | Governor linkage gap kit | Service part / kit |
| 24-20015 | Crankcase Breather Filter, Left hand | Service part / kit |
| 24540 | Holder, manual | Service part / kit |
| 25-19511 | Wear Plate | Service part / kit |
| 25077 | Switch, toggle - 20A VAC | Service part / kit |
| 26229 | Kit, voltage adjustment pot w/wires | Service part / kit |
| 26431 | ESO MOUNTING AND GROUNDING KIT | Service part / kit |
| 26888 | PROTECTIVE SHIPPING CAP | Service part / kit |
| 26891 | PROTECTIVE SHIPPING CAP | Service part / kit |
| 27828 | Panel, lug box glastic | Service part / kit |
| 28561W | Box, lug enclosure | Service part / kit |
| 28564W | Panel, control left | Service part / kit |
| 28567 | Bus, main breaker out | Service part / kit |
| 28569W | Panel, lug box outlet | Service part / kit |
| 28570W | Door, lug box | Service part / kit |
| 28583W | Angle, top lug box | Service part / kit |
| 28584 | Bus, lug extension | Service part / kit |
| 28653B | Weldment, control box | Service part / kit |
| 28910 | SPRING, pressure adjusting | Service part / kit |
| 29893 | Bracket, control board wire guide | Service part / kit |
| 2x594 | Ampere rating | Service part / kit |
| 30175 | Decal, UN31A tank caution | Service part / kit |
| 30246W | Panel, digital control | Service part / kit |
| 32966 | O.S. METERING VALVE AND ARM ASSEMBLY | Service part / kit |
| 33002 | SEAT, spring | Service part / kit |
| 34195 | VALVE BODY | Service part / kit |
| 34270 | COIL ASSEMBLY | Service part / kit |
| 34488 | HOUSING AND ADVANCE PISTON KIT | Service part / kit |
| 36493 | HEAD AND ROTOR KIT | Service part / kit |
| 37055 | CSA SOLENOID KIT 12V NON-DELAY | Service part / kit |
| 38411 | CONNECTOR, back-leakage | Service part / kit |
| 51551 | Decal set, safety | Service part / kit |
| 51552 | Decal, high temp | Service part / kit |
| 54-51006 | Drain Valve, Metal | Service part / kit |
| 54005 | CAP, DEF FILL | Service part / kit |
| 55104 | CAP, FUEL FILL 3.50 - GREEN | Service part / kit |
| 60020 | Nut, M8-1.25 sflg lock | Service part / kit |
| 60062 | Screw, 10-32 x .750 pan phil, G2 | Service part / kit |
| 60068 | Screw, 10-24X.500 pan phil | Service part / kit |
| 60145 | Nut, .375-16 ser flg lock | Service part / kit |
| 60161 | Nut, .250-20 hx ser flg | Service part / kit |
| 60168 | Screw, .312-18X.750 hx hd | Service part / kit |
| 60175 | Screw, .250-20X.500 sflg hex | Service part / kit |
| 60252 | Washer, #10 split lock | Service part / kit |
| 60268 | Rivet, .188 dia. x .126 to .250 grip, SS | Service part / kit |
| 60270 | Nut, 8-32 nylock, G6 | Service part / kit |
| 60398 | Screw, 10-32 x .500 pan phil, SS | Service part / kit |
| 60452 | Washer, .313 flat 1.125/1.0 bonded rubber, SS | Service part / kit |
| 60473 | Rivet, 3/16 | Service part / kit |
| 60478 | Screw, .375-16X2.000 hx hd | Service part / kit |
| 60505 | Nut, .312-18 U-clip - long type | Service part / kit |
| 60507 | Screw, .312-18x1.0 std hex, SS | Service part / kit |
| 60525 | Screw, 8-32X1.500 pan phil | Service part / kit |
| 6068HF120-183 | Engine | Service part / kit |
| 60749 | Plug, hole .500 dia. white | Service part / kit |
| 61045 | Nut, 10-32 sflg | Service part / kit |
| 65309 | Connector, 21 pin, deutsch | Service part / kit |
| 65444 | Transformer, current | Service part / kit |
| 655K | Ground Contact Area | Service part / kit |
| 65890 | Lug, terminal dual #6-350mcm | Service part / kit |
| 66191 | Controller, eng/gen - prog. | Service part / kit |
| 66455 | Relay, 12V/70A NC/80A NO w/diode | Service part / kit |
| 80REOZJ4 | Stationary non-emergency gen-sets | Service part / kit |
| 85401081 | COOLANT HEATER RESISTANCE 1000W 240V | Service part / kit |
| 85403616 | ELECTRONIC ACTUATOR | Service part / kit |
| 85403731 | STARTING BATTERY 12V 100Ah 450A | Service part / kit |
| 85404267 | AIR HEATER RESISTANCE 1200W 12V | Service part / kit |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.
Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.
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.
The John Deere 6068TF250 has a displacement of 6.8 liters with 6 cylinders.
The John Deere 6068TF250 powers 5 generator set(s), including Atlas Copco QAS 108, John Deere 6068TF250, Kohler 100REOZJ, MQ Power DCA-125SSJU, MQ Power DCA-125SSJU2.
The John Deere 6068TF250 uses oil filter part numbers Kohler 360031, John Deere DZ118286, Donaldson P551352.
The John Deere 6068TF250 oil change interval is every 500 hours.
A commonly reported issue on generators using the John Deere 6068TF250 is: Lack of power. Cause: Engine overloaded. Fix: Reduce load.