Service parts for the 300REOZJ
Grouped by system, with how many of each the parts manual calls for.
Fuel system
1 requiredOil 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 | 300 kW |
| Standby kVA | 375 |
| Emissions | Tier 3 EPA-Certified |
| Controller | APM402, Decision-Maker 3000 |
| Oil capacity | 33.4 L |
| Alternator | 4UA13 (4-pole, Class H insulation) |
| Voltage options | 120/208 V, 127/220 V, 120/240 V, 139/240 V, 220/380 V, 240/416 V, 277/480 V, 347/600 V |
| Phase | 3 |
| Power factor | 0.8 |
| Battery cranking | 950 CCA |
| Battery voltage | 12 V |
| Battery quantity | 2 |
| Coolant capacity | 36 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 3100×1300×1689 mm |
| Dry weight | 2449 kg |
Engine
| Oil capacity | 33.4 L |
|---|---|
| Coolant capacity | 16.0 L |
| Displacement | 9.0 L |
| Aspiration | Turbocharged, Charge Air-Cooled |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the John Deere 6090HFG86| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Fuel filter | Secondary | GM50263 | Amazon $148.00 eBay $99.99 | ||
| Oil filter | GM48731 | Amazon $20.01 eBay $49.99 |
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 300REOZJ?
The Kohler 300REOZJ is rated 300 kW standby (375.0 kVA).
Which engine powers the Kohler 300REOZJ?
The Kohler 300REOZJ is powered by the John Deere 6090HFG86 engine.
Is the Kohler 300REOZJ diesel or gas?
The Kohler 300REOZJ runs on Diesel.
What's the oil capacity on a Kohler 300REOZJ?
The John Deere 6090HFG86 engine in the Kohler 300REOZJ has an oil capacity of 33.4 liters.
Which alternator is fitted to the Kohler 300REOZJ?
The Kohler 300REOZJ uses a 4UA13 alternator. It has 4 poles. Insulation class H.
Which oil filter part number does the Kohler 300REOZJ take?
The Kohler 300REOZJ uses oil filter part number GM48731.
What fuel filter fits the Kohler 300REOZJ?
The Kohler 300REOZJ uses fuel filter part number GM50263.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Standby | 25% | 26.3 | 7.0 |
| Standby | 50% | 49.7 | 13.1 |
| Standby | 75% | 67.7 | 17.9 |
| Standby | 100% | 84.1 | 22.2 |
Available documents
Spec sheet — Kohler-300REOZJ-Spec-Sheet-Woodstock-Power-Co. (Kohler)Spec sheet — g5352 (Kohler)Reference (Kohler)Reference — 40-300REOZJ G6099 (Kohler)Reference — G6-39 0918AZ (Kohler)Reference — Reinstated Enclosures (Kohler)Reference — tp6697 (Kohler)Service manual — tp6439 (Kohler)Service manual — tp6798 (Kohler)Service manual — tp7138 (Kohler)Service manual — tp7149 (Kohler)