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Clarke RC185D Generator Set

The Clarke RC185D is a Diesel generator set powered by a John Deere 6068HF285 engine. It is available at 120/208 V, 277/480 V and 120/240 V. It holds about 11.9 L (3.1 gal) of oil and 11.9 L (3.1 gal) of coolant. The set measures 5179×1923×2408 mm (203.9×75.7×94.8 in) and weighs about 3268 kg (7205 lb). An integrated tank holds 966.4 L (255.3 gal). The same 6068HF285 engine also powers generator sets from John Deere, Kohler, MQ Power and MTU.

6.8 L
Displacement
11.9 L
Oil capacity
1
Document types

Service parts for the RC185D

Grouped by system, with how many of each the parts manual calls for.

Air intake

1 required

Fuel system

2 required
CO2775Fuel filter (primary)see priceAmazon
GM50006Fuel filter (secondary)$23.99Amazon

Oil system

1 required

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

FuelDiesel
Oil capacity11.9 L
AlternatorLeroy-Somer LSA 42.2/43.2/44.2/46.2/47.2 (4-pole)
Voltage options120/208 V, 277/480 V, 120/240 V
Battery voltage12 V
Dimensions (L×W×H)5179×1923×2408 mm
Dry weight3268 kg
Fuel tank966.4 L

Engine

John Deere 6068HF285
Oil capacity11.9 L
Coolant capacity11.9 L
Displacement6.8 L
AspirationTurbocharged
Rated speed1800 rpm

Maintenance & consumables

for the John Deere 6068HF285
ItemSpecCapacityPart #Interval
Air filterAir Cleaner Element (Engine) PrimaryG030077 Amazon eBay
Fuel filterElement, Fuel Water SeparatorCO2775 Amazon eBay
Fuel filterSecondaryGM50006 Amazon $23.99 eBay $26.99
Fuel filterUL DIESEL STD1000 hr
Oil filterElement, Oil FilterC04521 Amazon eBay
BatteryUL DIESEL STD1000 hr
BeltUL DIESEL STD1000 hr
CoolantUL DIESEL STD15.2 L1000 hr
Oil27.91000 hr
Spark plugUL DIESEL STD1000 hr

Common questions

What engine does the Clarke RC185D use?

The Clarke RC185D is powered by the John Deere 6068HF285 engine.

Is the Clarke RC185D diesel or gas?

The Clarke RC185D runs on Diesel.

What's the oil capacity on a Clarke RC185D?

The John Deere 6068HF285 engine in the Clarke RC185D has an oil capacity of 11.9 liters.

What alternator comes on the Clarke RC185D?

The Clarke RC185D uses a Leroy-Somer LSA 42.2/43.2/44.2/46.2/47.2 alternator. It has 4 poles.

What oil filter does the Clarke RC185D use?

The Clarke RC185D uses oil filter part number C04521.

What fuel filter does the Clarke RC185D use?

The Clarke RC185D uses fuel filter part numbers CO2775, GM50006.

Which air filter part number does the Clarke RC185D take?

The Clarke RC185D uses air filter part number G030077.

Troubleshooting

6

Symptoms & remedies

SymptomCauseRemedy
Excessive overheating of one or both bearings (temp of bearings over 80°C) (With or without abnormal bearing noise)If the bearing has turned blue or if the grease has turned black, change the bearing.
Excessive overheating of alternator frame (temperature rise of more than 40°C above ambient)Air flow (inlet-outlet) partially clogged or hot air is being recycled either from alternator or prime mover. Alternator is functioning at too high a voltage (over 105% of rated voltage on load). Alternator overloaded
Too much vibrationMisalignment (coupling) Defective mounting or play in coupling Incorrect balancing of shaft (Engine-Alternator)
No voltage at no load or startupConnect a battery of 4 to 12 volts to terminals E+(F+) or E-(F-) respecting the polarity on the A.V.R for 2 to 3 seconds. The alternator builds up and voltage is correct when the battery is removed.
Lack of residual magnetism in alternator- Check the connections of the sensing leads to the A.V.R. - Faulty rotating diode - Short-circuit on rotor windings
Voltage collapses during normal operationCheck the AVR, the surge suppressor, the rotating diodes and replace any defective part

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Clarke RC185D troubleshooting guide (12 entries) →

Parts

21
Part #DescriptionQtySystem
352793Oil Filter1Oil filter Amazon eBay $106.79
C04521Element, Oil FilterOil filter Amazon eBay
CO2775Element, Fuel Water SeparatorFuel filter Amazon eBay
CO2776Element, Fuel Filter PrimaryFuel filter Amazon eBay
G030077Air Cleaner Element (Engine) PrimaryAir filter Amazon eBay
G030078Air Cleaner Element (Engine) SecondaryAir filter Amazon eBay
G122208Clarke Eng Fluid - 5 galFluid Amazon eBay
G122209Clarke Eng Fluid -1 galFluid Amazon eBay
GM32809Fuel Filter1Fuel filter Amazon $57.96 eBay $26.25
GM50006Fuel Filter1Fuel filter Amazon $23.99 eBay $26.99
GM50074Fuel Filter (primary)1Fuel filter Amazon $76.45 eBay $70.33
GM70424-1Fan Belt (12V)1Belt Amazon eBay
GM70424-2Fan Belt (24V)1Belt Amazon eBay
GM77161Oil Filter1Oil filter Amazon eBay
MOOOOO-20001QAuto START/STOP Engine Controller (ECU)1ECM / ECU Amazon eBay
G122191250 hour Maintenance Kit (without fluids)Service part / kit Amazon eBay
G122196250 hour Maintenance Kit (& engine fluids)Service part / kit Amazon eBay
G122201500 hour Maintenance Kit (without fluids)Service part / kit Amazon eBay
G122206500 hour Maintenance Kit (& Engine fluids)Service part / kit Amazon eBay
M2870400404Parts List No.Service part / kit Amazon
M2870400404CService part / kit Amazon eBay

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Available documents

Operator's manual — manual iom - rc mobile line - g131740.sflb (Clarke)
Full service, cheapest listings

Priced items from this model's own parts manual.

Fuel filter (secondary) GM50006$23.99
1 priced item$23.99