Specifications
| Fuel | diesel |
|---|---|
| Standby power | 15 kW |
| Controller | Decision-Maker 3000 |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | ×1 | GM42265 | Amazon eBay | ||
| Fuel filter | ×1 | GM32359 | Amazon eBay $26.87 | ||
| Oil filter | ×1 | 252834 | Amazon eBay $27.95 | ||
| Belt | GM42428 | Amazon eBay | |||
| Coolant | 1.8 | — | 1000 hr | ||
| Oil | API classification of CD or CF | — | 250 hr |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
What is the power rating of the Kohler 15REOZD?
The Kohler 15REOZD is rated 15 kW standby.
What fuel does the Kohler 15REOZD use?
The Kohler 15REOZD runs on diesel.
Troubleshooting
4Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Generator does not start | Faulty starter motor or battery | Check and replace the starter motor if necessary. Check and charge the battery. |
| Engine overheats | Coolant level is low, thermostat is faulty, radiator fins are dirty | Add coolant to recommended level. Replace thermostat if it is faulty. Clean radiator fins. |
| Generator produces insufficient power | Fuel filter is clogged, governor settings are incorrect | Clean or replace the fuel filter. Adjust governor settings as per manufacturer's instructions. |
| Engine runs rough | Air intake system is dirty, fuel solenoid is faulty | Inspect and clean air intake system. Check and replace fuel solenoid if necessary. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
11model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 225006 | Gasket, thermostat | 1 | Gasket | buy |
| 225022 | Belt, fan | 1 | Belt | Amazon eBay $65.00 |
| 249865 | Gasket, thermostat | 1 | Gasket | buy |
| 252834 | Filter, oil | 1 | Oil filter | Amazon eBay $27.95 |
| GM28823 | Sensor, temperature | 1 | Sensor | buy |
| GM32359 | Filter, fuel | 1 | Fuel filter | Amazon eBay $26.87 |
| GM34387 | Thermostat | 1 | Thermostat | buy |
| GM42265 | Element, air cleaner | 1 | Air filter | Amazon eBay |
| GM42266 | Element, air cleaner | 1 | Air filter | Amazon eBay $22.50 |
| GM47465 | Filter, oil | 1 | Oil filter | Amazon eBay $23.52 |
| 223316 | Fuse, 10 A, 250 V | 2 | Service part / kit | buy |
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.
Available documents
BrochureInstallation manualReferenceOwner's manualParts manualService manual