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Kohler KG6208TA 6.2L Engine

The Kohler KG6208TA 6.2L is a 6.2 L 8-cylinder turbocharged, aftercooled engine rated at 1800 rpm. It powers generator sets from Kohler, including the KG80. It holds 8 L (2.1 gal) of oil and 22.7 L (6.0 gal) of coolant.

Also known as: Kohler KG6208TA 6.2L

Part of the Kohler KG6208 engine family — 8 variants share parts & fitment.

6.2 L
Displacement
8
Cylinders
1800 rpm
Rated speed
8.0 L
Oil capacity

Engine specifications

Oil capacity8.0 L
Coolant capacity22.7 L
Displacement6.2 L
Cylinders8
AspirationTurbocharged, Aftercooled
Rated speed1800 rpm

Maintenance schedule

ItemSpecCapacityPart #Interval
Oil filterCartridge—
Oil8.0 L—

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Service intervals

27
ItemActionHoursMonthsNotes
Wire-cable insulation breakdownTest500 hr36 moThree Years or 500 Hrs; Visually Inspect and Test
APM603 RTC batteryReplace24 moTwo Years, when indicated by the controller (range 2-10 years)
Air ducts, louversClean12 moYearly; Check and Clean
Battery charger operation, charge rateInspect1 moMonthly
Battery electrolyte levelCheck1 moMonthly
Battery load testingTest12 moYearly
Battery specific gravity, charge stateTest1 moMonthly
Circuit breakers, fusesInspect1 moMonthly; Visually Inspect, Check, Replace as necessary, Clean, Test; do not break manufacturer's seals or internally inspect
Coolant temperature protection levelTest6 moSix Months; follow engine manufacturer's manual
Crankcase breatherClean3 moQuarterly; follow engine manufacturer's manual
Excessive back pressureTest12 moYearly
Fan and alternator beltsInspect1 moMonthly; follow engine manufacturer's manual, Replace as necessary
Flexible connector(s)Inspect6 moSix Months; Visually Inspect
Fuel pipingInspect12 moYearly; Visually Inspect
Hangers and supportsInspect12 moYearly; Visually Inspect
Insulation, fire hazardsInspect3 moQuarterly; Visually Inspect
Louver motors and controlsTest12 moYearly; Visually Inspect, Clean, Test
Radiator exteriorClean12 moYearly; Check and Clean
Recharge after engine startCheck1 moMonthly
Remote controlTest1 moMonthly
Remove corrosion, clean and dry battery and rackInspect1 moMonthly; Visually Inspect and Clean
Run generator setTest1 moMonthly
Safety and alarm operationTest6 moSix Months; Check and Test
Tighten DC electrical connectionsCheck6 moSix Months
Tighten control and power wiring connectionsCheck12 moYearly
Water supply to the heat exchangerCheck12 moYearly
Wire abrasions where subject to motionInspect3 moQuarterly; Visually Inspect and Check

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

17
TypeItemValueUnitCondition
OtherAlternator end bracket bearing replacement interval10000hoursmore frequently if annual inspection shows excessive rotor end play or bearing damage
OtherBattery specific gravity - charge threshold1.215at 26.7°C (80°F), charge battery if below this
OtherBattery specific gravity - fully charged1.260at 26.7°C (80°F)
OtherBattery specific gravity max cell-to-cell variance0.01
OtherBattery wrap length1067 (42)mm (in.)
OtherBattery wrap length864 (34)mm (in.)
OtherGaseous fuel system leak test pressure6-8oz per sq in (10-14 in water column)
OtherHeater wrap rating50Watts
OtherHeater wrap rating65Watts
OtherPlug cord length75 (3)mm (in.)
OtherPower cord length1677 (66)mm (in.)
OtherPower cord length1830 (72)mm (in.)
OtherPower cord length483 (19)mm (in.)
TemperatureBattery specific gravity reference temperature26.7°C (80°F)
TemperatureBattery specific gravity temperature correction factor0.004specific gravity points per 5.5°C (10°F)
TemperatureThermostat off temperature27C (80 F)
TemperatureThermostat on temperature16C (60 F)

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

FluidGradeStandardAmbientCapacityNotes
CoolantRadiator Systemabove 45°C22.7 LIncluding engine jacket water and radiator system
Engine oilFull Pressure lubrication system8.0 L (including filter and cooler)Kohler Genuine oil and filters recommended

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

Procedures

6
Battery Specific Gravity Check diagnostic

Tools: Battery hydrometer

  1. Use a battery hydrometer to check specific gravity of electrolyte in each cell (filler-cap batteries only).
  2. Hold the hydrometer vertically and read the value.
  3. Correct the reading using the temperature correction table if the hydrometer lacks one.
  4. Battery is fully charged if corrected specific gravity is 1.260 at 26.7°C (80°F).
  5. Charge the battery if specific gravity is below 1.215 at 26.7°C (80°F).
  6. Maintain specific gravity within ±0.01 between cells.
Air Filter Element Replacement maintenance

⚠ Do not operate the generator set with the air cleaner removed.

  1. Remove the generator set from service (remove load, shut down, controller Out-of-Service mode, press emergency stop).
  2. Disconnect power to battery charger.
  3. Remove battery cables, negative lead first.
  4. Loosen the filter clamp and remove the filter element from the air intake elbow.
  5. Install new/cleaned filter element and tighten the filter clamp.
Battery Electrolyte Level Inspection maintenance

⚠ Battery acid can cause blindness and burn skin; wear splashproof goggles, rubber gloves, boots.

  1. Check the electrolyte level at the specified interval on batteries with filler caps.
  2. Remove the filler caps and verify electrolyte reaches the bottom of each filler hole.
  3. Refill as necessary with distilled water only (do not add fresh electrolyte).
  4. Tighten the filler caps.
  5. If water was added during freezing temperatures, run the generator set 20-30 minutes to mix electrolyte and water.
Procedure to Drain Cooling System maintenance

⚠ Hot coolant and steam can cause severe injury or death.

  1. Stop the generator set and allow it to cool.
  2. Deenergize the block heater, if equipped.
  3. Cover the pressure cap with a rag and remove it to prevent air pockets.
  4. Open the radiator and/or engine block coolant drain valve(s) and allow the system to drain.
  5. If mineral deposits or dirt/grease are present, proceed to flush and clean; otherwise proceed to refill.
Procedure to Refill Cooling System maintenance

⚠ Do not add coolant to a hot engine; wait until the engine has cooled.

  1. Cover the pressure cap with a rag and remove it.
  2. Close drain valve(s) and tighten hose clamps.
  3. Fill the cooling system with the recommended Kohler coolant mixture, from the bottom if possible.
  4. Replace the pressure cap.
  5. Operate the generator set until the thermostat opens (upper hose warms).
  6. Stop the engine, allow it to cool, check and repair any leaks.
  7. Remove pressure cap and add coolant to just below the overflow tube opening.
  8. Replace the pressure cap.
  9. Check coolant level in the sight glass; maintain between high and low marks.
  10. Reenergize the block heater, if equipped.
Radiator Maintenance maintenance

⚠ Avoid damaging fins with rough brushing or excessive jet pressure.

  1. Periodically check for leakage from core or tank connections.
  2. Inspect liquid level via the top tank sight glass at regular intervals.
  3. Test antifreeze before cold weather periods.
  4. For long standby periods, check top tank interior for scale/rust every 1-3 months.
  5. Remove dirt/debris from core face with compressed air, steam, or water (stand back at least 0.9 m/3 ft if using water, keep stream parallel to fins).
  6. Clean fan blades once per year using a stiff brush or air nozzle, or nonflammable solvent with brush for solid deposits.

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

Voltage reconnection

VoltagePhaseConnectionLeadsNotes
120/2083Y-wye12 reconnectable4PX or 4RX alternator
120/2401Single-phase4 leads4TX alternator
120/2403Y-wye12 reconnectable4PX, 4RX, or 4TX alternator
127/2203Y-wye12 reconnectable4RX alternator
277/4803Y-wye12 reconnectable4RX alternator

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 Kohler KG6208 family

66
Part #DescriptionCategory
253107Element, Air CleanerAir filter
A-253104Air cleaner assemblyAir filter
GM104787Air cleaner assemblyAir filter
GM62309Element, air cleanerAir filter
GM88993-GR2Mount, Air Cleaner (6.76”ID)Air filter
KOH-48RCLB-AIRFKohler 48RCLB Air FilterAir filter
KOH-48RCLB-BATTERYKohler 48RCLB BatteryBattery
GM102050Tensioner, 6.2L drive beltBelt
KOH-48RCLB-BELTKohler 48RCLB BeltBelt
KOH-48RCLB-COOLKohler 48RCLB Coolant FilterCoolant filter
GM100213Camshaft position sensorCrankcase breather hose
KOH-48RCLB-COOLANTKohler 48RCLB CoolantFluid
KOH-48RCLB-FUELKohler 48RCLB FuelFluid
KOH-48RCLB-OILKohler 48RCLB Engine OilFluid
GM105082Gasket, Timing CoverGasket
GM105083Timing CoverGasket
GM105110Intake GasketGasket
GM105112Head GasketGasket
GM105119Gasket, Oil Pan, One PieceGasket
GM105125Gasket, Water PumpGasket
253481Hose, Hump reducer (4 in. to 3 in.)Hose
GM101208Hose barb, crankcase breatherHose
GM102769Hose, Upper radiatorHose
GM103656Hose, coolant SAE J20R2--DI 5/8 in. IDHose
GM104549Hose, Radiator lowerHose
GM104553Hose, Radiator upperHose
GM104554Hose, ReducerHose
GM104555Hose, ReducerHose
GM105166Oilcool line, Lower, F6-06-06-8-8-8C-920Hose
GM105167Oilcool line, Upper, F6-06-06-8-8-8C-1432Hose
GM14098Hose, Lower radiator (44 mm ID)Hose
X-312-47Hose (0.63 in. ID x 36 in.)Hose
X-312-62Hose, .63 IDHose
X-391-19Connector, 90 degrees (5/8 in. ID hose)Hose
X-582-1Connector, hoseHose
X-6014-137Hose, Radiator Wire Insert, 3 in. IDHose
X-6380-12Hose, Charged air coolerHose
GM101269FILTER, 6.2L OILOil filter
KOH-48RCLB-OILFKohler 48RCLB Oil FilterOil filter
246242voltage reconnection decalService part / kit
352945Block heater (kit GM78529-KP1-QS)Service part / kit
352946Block heater (kit GM78529-KP2)Service part / kit
ADV-9039-AWeather and Sound Enclosure assemblyService part / kit
GM101207Valve, PCVService part / kit
GM104703-KP1Battery heater kit, 120 Volts, heater wrap rating 50 Watts, battery wrap length 864 mm (34 in.), power cord length 483 mm (19 in.), plug cord length 75 mm (3 in.)Service part / kit
GM105063Connecting RodService part / kit
GM105067CamshaftService part / kit
GM105073Bolt, HFH, 1/4- 20 x .50, WHZService part / kit
GM105128Valve, IntakeService part / kit
GM105129Valve, ExhaustService part / kit
GM105130Valve SpringService part / kit
GM105131Spring Locator (Valve)Service part / kit
GM114539Wireless BridgeService part / kit
GM17809Shield, heat (32 mm ID x 152 mm)Service part / kit
GM23718Shield, heat (32 mm ID x 455 mm)Service part / kit
GM88281Load Shed Assembly (mounts inside the transfer switch enclosure)Service part / kit
GM88281-1Load Control, ATSService part / kit
GM105068Water Pump, W/ GasketsPump
GM105118Oil Pump Assembly, With Pickup TubePump
GM105121Bolt, HFH, 3/8- 16 x 2.25 (Water Pump)Pump
GM101223SENSOR, 6.2L OIL PRESSURESensor
GM101273Spark Plug (KG6208)Spark plug
GM104391SPARK PLUG, 6.2L TURBO, ERCSpark plug
KG6208Air Filter, Oil, qts. 5.7L GM89979Spark plug
KOH-48RCLB-SPARKKohler 48RCLB Spark PlugSpark plug
GM101211Thermostat, 6.2LThermostat

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

Common questions

What is the oil capacity of the Kohler KG6208TA 6.2L?

The Kohler KG6208TA 6.2L engine has an oil capacity of 8.0 liters.

What is the displacement of the Kohler KG6208TA 6.2L?

The Kohler KG6208TA 6.2L has a displacement of 6.2 liters with 8 cylinders.

Which generators use the Kohler KG6208TA 6.2L engine?

The Kohler KG6208TA 6.2L powers 1 generator set(s), including Kohler KG80.