Service parts for the 400REOZJ
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredOil system
1 requiredBelts
1 requiredCooling system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 400 kW |
| Standby kVA | 500 |
| Prime power | 365 kW |
| Emissions | Tier 3 EPA-Certified |
| Controller | APM402, APM603, Decision-Maker 550, Decision-Maker 6000 |
| Oil capacity | 42.0 L |
| Alternator | 4M4021, 5M4027, 5M4028, 4M4266, 5M4272 |
| Voltage options | 120/208 V, 127/220 V, 139/240 V, 220/380 V, 240/416 V, 277/480 V, 347/600 V |
| Phase | 3 |
| Rated current | 1388 A |
| Power factor | 0.8 |
| Circuit breaker | 1388 A |
| Battery group | Two |
| Battery cranking | 925 CCA |
| Battery voltage | 12 V |
| Battery quantity | 2 |
| Coolant capacity | 67.2 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 3630×1725×1993 mm |
Engine
| Oil capacity | 42.0 L |
|---|---|
| Coolant capacity | 67.2 L |
| Displacement | 13.5 L |
| Aspiration | Turbocharged and Air-to-Air Aftercooled |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the John Deere 6135HF485| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Filter | 20145-17038 | Amazon eBay | ||
| Fuel filter | Fuel Filter | 20145-17040 | Amazon eBay | ||
| Oil filter | Oil Filter | 20145-17036 | Amazon eBay | ||
| Battery | — | ||||
| Belt | Belt | 20145-17044 | Amazon eBay | ||
| Coolant | — | ||||
| Coolant filter | Coolant Filter | 20145-17042 | Amazon eBay | ||
| Oil | — | 500 hr | |||
| Spark plug | — |
Service specifications
30| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| 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.) | |
| Other | 16 in. weld flange outside diameter C | 596.9 | mm (23.5 in.) | |
| Other | 16 in. weld flange quantity of bolts / bolt hole diameter D | 16, 28.58 | mm (1.13 in.) | |
| Other | 18 in. weld flange bolt circle diameter B | 577.85 | mm (22.75 in.) | |
| Other | 18 in. weld flange outside diameter C | 635.0 | mm (25.0 in.) | |
| Other | 18 in. weld flange quantity of bolts / bolt hole diameter D | 16, 31.75 | mm (1.25 in.) | |
| Other | 20 in. weld flange bolt circle diameter B | 635.00 | mm (25.00 in.) | |
| Other | 20 in. weld flange outside diameter C | 698.5 | mm (27.5 in.) | |
| Other | 20 in. weld flange quantity of bolts / bolt hole diameter D | 20, 31.75 | mm (1.25 in.) | |
| Other | 5 in. weld flange bolt circle diameter B | 215.90 | mm (8.50 in.) | |
| Other | 5 in. weld flange outside diameter C | 241.30 | mm (9.50 in.) | |
| Other | 5 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 6 in. weld flange bolt circle diameter B | 254.0 | mm (10.0 in.) | |
| Other | 6 in. weld flange outside diameter C | 279.4 | mm (11.0 in.) | |
| Other | 6 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 8 in. weld flange bolt circle diameter B | 298.45 | mm (11.75 in.) | |
| Other | 8 in. weld flange outside diameter C | 342.9 | mm (13.5 in.) | |
| Other | 8 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | Weld flange angle A (10, 12, 14 in. nominal pipe size) | 30 | deg. | |
| Other | Weld flange angle A (16, 18, 20 in. nominal pipe size) | 22.5 | deg. | |
| Other | Weld flange angle A (5, 6, 8 in. nominal pipe size) | 45 | deg. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What is the power rating of the Kohler 400REOZJ?
The Kohler 400REOZJ is rated 400 kW standby (500.0 kVA).
What engine does the Kohler 400REOZJ use?
The Kohler 400REOZJ is powered by the John Deere 6135HF485 engine.
What fuel does the Kohler 400REOZJ use?
The Kohler 400REOZJ runs on Diesel.
What's the oil capacity on a Kohler 400REOZJ?
The John Deere 6135HF485 engine in the Kohler 400REOZJ has an oil capacity of 42.0 liters.
What alternator comes on the Kohler 400REOZJ?
The Kohler 400REOZJ uses a 4M4021, 5M4027, 5M4028, 4M4266, 5M4272 alternator.
What oil filter fits the Kohler 400REOZJ?
The Kohler 400REOZJ uses oil filter part number 20145-17036.
What fuel filter fits the Kohler 400REOZJ?
The Kohler 400REOZJ uses fuel filter part number 20145-17040.
What air filter does the Kohler 400REOZJ use?
The Kohler 400REOZJ uses air filter part number 20145-17038.
Parts
17| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 20145-17036 | Oil Filter | 1 | Oil filter | Amazon eBay |
| 20145-17038 | Air Filter | 1 | Air filter | Amazon eBay |
| 20145-17040 | Fuel Filter | 1 | Fuel filter | Amazon eBay |
| 20145-17042 | Coolant Filter | 1 | Coolant filter | Amazon eBay |
| 20145-17044 | Belt | 1 | Belt | Amazon eBay |
| 20145-17046 | Spark Plug | 1 | Spark plug | Amazon |
| A34471 | UN—11OCT88 | 1 | Service part / kit | Amazon eBay |
| RG13887 | A—Engine Serial Number B—Application Data or Type C—Serial Number Plate | 1 | Service part / kit | Amazon eBay |
| RG14798 | Engine Serial Number/Application Data | 1 | Service part / kit | Amazon eBay |
| RG14813 | OEM Engine Option Code Label | 1 | Service part / kit | Amazon eBay |
| RG40854 | 0000007 UN—19—06MAY05 | 1 | Service part / kit | Amazon |
| T6828AB | OILSCAN | Service part / kit | Amazon eBay | |
| T6829AB | COOLSCAN | Service part / kit | Amazon eBay | |
| TS206 | Wear Protective Clothing | 0 | Service part / kit | Amazon eBay $1600.83 |
| TS220 | Remove Paint Before Welding or Heating | 1 | Service part / kit | Amazon eBay $13.89 |
| TS677 | Rotating Cooling System Fans Can Cause Serious Injury | 1 | Service part / kit | Amazon eBay |
| TS953 | UN—15MAY90 | 1 | Service 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.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 25% | 29.6 | 7.8 |
| Prime | 50% | 52.1 | 13.8 |
| Prime | 75% | 75.1 | 19.8 |
| Prime | 100% | 101.3 | 26.8 |
| Standby | 25% | 31.9 | 8.4 |
| Standby | 50% | 57.9 | 15.3 |
| Standby | 75% | 83.8 | 22.1 |
| Standby | 100% | 115.7 | 30.6 |
Available documents
Spec sheet (Kohler)Spec sheet — Kohler-400REOZJ (Kohler)Spec sheet — g5354 (Kohler)Spec sheet — g5620 (Kohler)Reference — 350-500REOZJ G6117 (Kohler)Reference — G6-39 0918AZ (Kohler)Parts manual — kohler consolidated price list (Kohler)Service manual — tp6797 (Kohler)Service manual — tp7138 (Kohler)Service manual — tp7149 (Kohler)