Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 30 kW |
| Standby kVA | 38 |
| Prime power | 25 kW |
| Controller | Decision-Maker 3000, Decision-Maker 550 |
| Oil capacity | 8.2 L |
Engine
| Oil capacity | 8.2 L |
|---|---|
| Coolant capacity | 11.4 L |
| Displacement | 2.4 L |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
Common questions
What is the power rating of the Kohler 30REOZJ?
The Kohler 30REOZJ is rated 30 kW standby (38.0 kVA).
What engine does the Kohler 30REOZJ use?
The Kohler 30REOZJ is powered by the John Deere 4024TF281D engine.
What fuel does the Kohler 30REOZJ use?
The Kohler 30REOZJ runs on Diesel.
What is the oil capacity of the Kohler 30REOZJ?
The John Deere 4024TF281D engine in the Kohler 30REOZJ has an oil capacity of 8.2 liters.
Parts
155model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 222337 | Air Cleaner, Heavy Duty | 1 | Air filter | PartsGeek |
| 222338 | Air Cleaner, Heavy Duty | 1 | Air filter | PartsGeek |
| 223595 | Thermostat | 1 | Thermostat | PartsGeek |
| 223604 | Oil Filter | 1 | Oil filter | Amazon eBay $35.77 PartsGeek |
| 223626 | Thermostat Gasket | 1 | Gasket | PartsGeek |
| 223640 | Fan Belt | 1 | Belt | Amazon eBay $999.95 PartsGeek |
| 223673 | Oil Filter | 1 | Oil filter | Amazon eBay $6.28 PartsGeek |
| 223676 | Thermostat | 1 | Thermostat | PartsGeek |
| 223762 | Thermostat Gasket | 1 | Gasket | PartsGeek |
| 223941 | Injector | 1 | Injector | PartsGeek |
| 223953 | Fuel Filter | 1 | Fuel filter | Amazon eBay $49.90 PartsGeek |
| 223959 | Fan Belt | 1 | Belt | Amazon eBay $26.00 PartsGeek |
| 223965 | Injector | 1 | Injector | PartsGeek |
| 224012 | Thermostat Gasket | 1 | Gasket | PartsGeek |
| 224171 | Injector | 1 | Injector | PartsGeek |
| 224256 | Fan Belt | 1 | Belt | Amazon eBay $29.99 PartsGeek |
| 224263 | Fan Belt | 1 | Belt | Amazon eBay $20.00 PartsGeek |
| 224299 | Injector | 1 | Injector | PartsGeek |
| 224795 | Fuel Filter | 1 | Fuel filter | Amazon eBay $73.35 PartsGeek |
| 241308 | Switch, water temp. shutdown | 1 | Sensor | PartsGeek |
| 241481 | Switch, high temperature 268298 Sender, water temperature | 1 | Sensor | PartsGeek |
| 241623 | Sensor, ferromagnetic (speed) | 1 | Sensor | PartsGeek |
| 241927 | Speed Sensor | 1 | Sensor | PartsGeek |
| 253107 | Element, air filter | 1 | Air filter | Amazon eBay $69.00 PartsGeek |
| 253108 | Element, air filter | 1 | Air filter | Amazon eBay $20.45 PartsGeek |
| 254477 | Air Filter element | 1 | Air filter | Amazon eBay $707.98 PartsGeek |
| 254832 | Coolant Level Sensor (serial 363369 and after) | 1 | Sensor | PartsGeek |
| 255520 | Hose, elbow 45 deg. | 1 | Hose | PartsGeek |
| 258883 | Cleaner assembly, air | 1 | Air filter | PartsGeek |
| 265461 | Line, fuel (fuel hose) | 1 | Hose | PartsGeek |
| 268298 | Sender, water temperature | 1 | Sensor | PartsGeek |
| 268371 | Relay (starter) | 1 | Starter | PartsGeek |
| 269373 | Alternator Assembly | 1 | Alternator | PartsGeek |
| 273404 | Coolant Level Sensor assembly (includes conduit, connector, pin, sensor; before serial 363369) | 1 | Sensor | PartsGeek |
| 273417 | Hose, upper radiator | 1 | Hose | PartsGeek |
| 273418 | Hose, lower radiator | 1 | Hose | PartsGeek |
| 273442 | Hose, hump 3 id x 5 1/2 | 1 | Hose | PartsGeek |
| 273443 | Hose, lower radiator | 1 | Hose | PartsGeek |
| 273444 | Hose, upper radiator | 1 | Hose | PartsGeek |
| 273462 | Hose, upper radiator | 1 | Hose | PartsGeek |
| 273463 | Hose, lower radiator | 1 | Hose | PartsGeek |
| 273520 | Sensor, low coolant (before serial 363369) | 1 | Sensor | PartsGeek |
| 273692 | Adapter, water temp. sender | 1 | Sensor | PartsGeek |
| 273693 | O-ring (water temp. sender adapter) | 1 | Seal | PartsGeek |
| 273758 | Pickup, RPM | 1 | Sensor | PartsGeek |
| 273777 | Hose, lower radiator | 1 | Hose | PartsGeek |
| 273930 | Hose, lower radiator | 1 | Hose | PartsGeek |
| 276574 | Hose, molded (water temperature manifold) | 1 | Hose | PartsGeek |
| 282897 | Gauge, oil pressure | 1 | Sensor | PartsGeek |
| 282898 | Strip, terminal (9-terminal) | 1 | Sensor | PartsGeek |
| 291891 | Solenoid, starter | 1 | Starter | PartsGeek |
| 328006 | Hose, 3 id x 2.25 in. | 1 | Hose | PartsGeek |
| 328308 | Switch, oil pressure | 1 | Sensor | PartsGeek |
| 328309 | Switch assembly, pressure (oil pressure) | 1 | Sensor | PartsGeek |
| 336101 | Hose, upper radiator | 1 | Hose | PartsGeek |
| 336445 | Thermostat Gasket | 1 | Gasket | PartsGeek |
| 336545 | Fuel Filter | 1 | Fuel filter | Amazon eBay $29.99 PartsGeek |
| 336923 | Switch, water temp. shutdown | 1 | Sensor | PartsGeek |
| 343473 | Sender, oil pressure | 1 | Sensor | PartsGeek |
| 347270 | Sensor, low coolant (serial 363369 and after) | 1 | Sensor | PartsGeek |
| 352102 | Hose, upper radiator | 1 | Hose | PartsGeek |
| 352192 | Hose, upper radiator | 1 | Hose | PartsGeek |
| 352193 | Hose, lower radiator | 1 | Hose | PartsGeek |
| 352335 | Hose | 1 | Hose | PartsGeek |
| 352337 | Switch, sensor (water temp.) | 1 | Sensor | PartsGeek |
| 352505 | Switch, sensor (water temp.) | 1 | Sensor | PartsGeek |
| 352522 | Hose, upper radiator | 1 | Hose | PartsGeek |
| 352523 | Hose, lower radiator | 1 | Hose | PartsGeek |
| 352910 | Hose, 3 x 2.25 | 1 | Hose | PartsGeek |
| A-253104 | Cleaner assembly, air | 1 | Air filter | PartsGeek |
| A-273699 | Cleaner assembly, air | 1 | Air filter | PartsGeek |
| A-273700 | Cleaner assembly, air | 1 | Air filter | PartsGeek |
| X-312-41 | Hose, bypass (thermostat) | 1 | Hose | PartsGeek |
| X-373-10 | Hose, 3/4 ID x 66 in. | 1 | Hose | PartsGeek |
| X-373-11 | Hose, 3/4 ID x 60 in. | 1 | Hose | PartsGeek |
| X-373-12 | Hose, 3/4 ID x 78 in. (early) | 1 | Hose | PartsGeek |
| X-373-13 | Hose | 1 | Hose | PartsGeek |
| X-422-26 | Hose, bypass (thermostat) | 1 | Hose | PartsGeek |
| X-507-1 | Hose, reducer 2.5 ID x 2.25 ID | 1 | Hose | PartsGeek |
| X-577-38 | Hose, oil-proof | 1 | Hose | PartsGeek |
| X-577-47 | Hose, oil-proof | 1 | Hose | PartsGeek |
| X-577-8 | Hose, oil-proof | 1 | Hose | PartsGeek |
| X-577-9 | Hose, oil-proof | 1 | Hose | PartsGeek |
| X-6350-1 | Hose, step | 1 | Hose | PartsGeek |
| 223316 | Fuse, 10 amp | 1 | Service part / kit | PartsGeek |
| 224357 | Cap, radiator 7 psi (48 kPa), 3.16 in. | 1 | Service part / kit | PartsGeek |
| 224358 | Cap, radiator 7 psi (48 kPa), 3.65 in. | 1 | Service part / kit | PartsGeek |
| 238736 | Voltmeter | 1 | Service part / kit | PartsGeek |
| 241062 | Plug, drain | 1 | Service part / kit | PartsGeek dieselpartscenter $41.63 |
| 243273 | Fuse, 3 amp | 5 | Service part / kit | PartsGeek |
| 253329 | DC Voltmeter | 1 | Service part / kit | PartsGeek |
| 255126 | Bulb (lamp no. 1892) | 1 | Service part / kit | PartsGeek |
| 257020 | Fan, generator | 1 | Service part / kit | PartsGeek |
| 257077 | Actuator, magnetic | 1 | Service part / kit | PartsGeek |
| 257080 | Exciter assembly, field | 1 | Service part / kit | PartsGeek |
| 257081 | Exciter assembly, field | 1 | Service part / kit | PartsGeek |
| 257173 | Fan, generator | 1 | Service part / kit | PartsGeek |
| 257569 | Exciter assembly, field | 1 | Service part / kit | PartsGeek |
| 257855 | Fan, generator | 1 | Service part / kit | PartsGeek |
| 257963 | Exciter assembly, field | 1 | Service part / kit | PartsGeek |
| 259391 | Relay | 1 | Service part / kit | PartsGeek |
| 272701 | Valve, oil drain | 1 | Service part / kit | PartsGeek |
| 273716 | Solenoid, fuel shutoff | 1 | Service part / kit | PartsGeek |
| 276691 | Block Heater | 1 | Service part / kit | PartsGeek |
| 276941 | Governor throttle kit (replaces governor ball joint linkage) | 1 | Service part / kit | PartsGeek |
| 280133 | Cable, jumper | 1 | Service part / kit | PartsGeek |
| 282800 | AC Ammeter | 1 | Service part / kit | PartsGeek |
| 282801 | AC Ammeter | 1 | Service part / kit | PartsGeek |
| 282802 | AC Ammeter | 1 | Service part / kit | PartsGeek |
| 282803 | AC Ammeter | 1 | Service part / kit | PartsGeek |
| 282804 | AC Ammeter | 1 | Service part / kit | PartsGeek |
| 282805 | AC Ammeter | 1 | Service part / kit | PartsGeek |
| 282806 | AC Ammeter | 1 | Service part / kit | PartsGeek |
| 282807 | AC Ammeter | 1 | Service part / kit | PartsGeek |
| 282808 | AC Ammeter | 1 | Service part / kit | PartsGeek |
| 282814 | AC Voltmeter | 1 | Service part / kit | PartsGeek |
| 282816 | AC Voltmeter | 1 | Service part / kit | PartsGeek |
| 282817 | AC Voltmeter | 1 | Service part / kit | PartsGeek |
| 282818 | Meter, frequency | 1 | Service part / kit | PartsGeek |
| 283645 | Fuse, 15 amp | 5 | Service part / kit | PartsGeek |
| 291207 | Fuse, 1.5 amp | 5 | Service part / kit | PartsGeek |
| 291269 | Heater, strip (anti-condensation) | 2 | Service part / kit | PartsGeek dieselpartscenter $0.77 |
| 291740 | Rectifier or Coil | 1 | Service part / kit | PartsGeek |
| 295069 | Meter, frequency | 1 | Service part / kit | PartsGeek |
| 326228 | Heater, block | 1 | Service part / kit | PartsGeek |
| 347715 | Cap, radiator 9 psi (62 kPa) | 1 | Service part / kit | PartsGeek |
| 352565 | AC Ammeter | 1 | Service part / kit | PartsGeek |
| A-233999 | Split Activator | 1 | Service part / kit | PartsGeek |
| A-255041 | Potentiometer assembly (voltage adjustment) | 1 | Service part / kit | PartsGeek |
| A-257099 | Circuit board, FR-II activator | 1 | Service part / kit | PartsGeek |
| A-336415 | Main Circuit Board (serial 363369 and after) | 1 | Service part / kit | PartsGeek |
| A-336430 | Indicator Board (variations 78, 79) | 1 | Service part / kit | PartsGeek |
| A-336432 | Main circuit board | 1 | Service part / kit | PartsGeek |
| B-258545 | Split Activator | 1 | Service part / kit | PartsGeek |
| B-258549 | Split Activator | 1 | Service part / kit | PartsGeek |
| B-292357 | Indicator Board | 1 | Service part / kit | PartsGeek |
| B-292789 | Regulator assembly, voltage | 1 | Service part / kit | PartsGeek |
| B-292902 | Photo Board / Split Activator | 1 | Service part / kit | PartsGeek FridayParts $271.50 |
| C-255670 | Voltage Regulator | 1 | Service part / kit | PartsGeek |
| G-292806 | Main Circuit Board | 1 | Service part / kit | PartsGeek |
| X-256-3 | Valve, drain 1/4 NPT | 1 | Service part / kit | PartsGeek |
| X-256-5 | Valve, drain | 1 | Service part / kit | PartsGeek |
| X-545-100 | Cable, battery | 1 | Service part / kit | PartsGeek |
| X-545-101 | Cable, battery | 1 | Service part / kit | PartsGeek |
| X-545-111 | Cable, battery | 1 | Service part / kit | PartsGeek |
| X-545-132 | Cable, battery | 1 | Service part / kit | PartsGeek |
| X-545-97 | Cable, battery | 1 | Service part / kit | PartsGeek |
| X-545-99 | Cable, battery | 1 | Service part / kit | PartsGeek |
| X-57-60 | Breaker, circuit | 1 | Service part / kit | PartsGeek |
| X-758-2 | Bearing, ball (generator end bracket) | 1 | Service part / kit | PartsGeek |
| X-758-6 | Bearing, ball (generator end bracket) | 1 | Service part / kit | PartsGeek |
| X-758-9 | Bearing, ball (generator end bracket) | 1 | Service part / kit | PartsGeek |
| X-796-1 | Breaker, circuit | 1 | Service part / kit | PartsGeek |
| X-796-2 | Breaker, circuit | 1 | Service part / kit | PartsGeek |
| X-796-3 | Breaker, circuit | 1 | Service part / kit | PartsGeek |
Compiled from this model's family documentation — may include parts for closely-related variants. 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% | 3.4 | 0.9 |
| Prime | 50% | 5.2 | 1.4 |
| Prime | 75% | 7.2 | 1.9 |
| Prime | 100% | 9.4 | 2.5 |
| Standby | 25% | 3.9 | 1.0 |
| Standby | 50% | 5.8 | 1.5 |
| Standby | 75% | 8.0 | 2.1 |
| Standby | 100% | 10.6 | 2.8 |
Available documents
Brochure — G6-39 0918AZ (Kohler)Spec sheet (Kohler)Installation manual — tt1454 (Kohler)Reference — Reinstated Enclosures (Kohler)Parts manual — tp5408 (Kohler)Service manual — tp5851 (Kohler)Wiring diagram — tp6798 (Kohler)wiring_diagrams — tp6697 (Kohler)