Service parts for the 120REOZT4
Grouped by system, with how many of each the parts manual calls for.
Air intake
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 | 105 kW |
| Standby kVA | 131 |
| Prime power | 96 kW |
| Emissions | FT4 |
| Controller | Decision-Maker 3500, Decision-Maker r 3500 |
| Oil capacity | 21.0 L |
| Alternator | 4R12X |
| Voltage options | 120/208 V, 120/240 V, 277/480 V, 347/600 V |
| Phase | 3 |
| Rated current | 364 A |
| Circuit breaker | 400 A |
| Battery group | One |
| Battery cranking | 450 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 26.1 L |
| Max ambient | 45 °C |
| Dimensions (L×W×H) | 2951×1119×2156 mm |
| Dry weight | 2660 kg |
| Sound level | 71.0 dBA @ 7 m |
| Fuel tank | 727.0 L |
| Tank runtime | 24 hr |
Maintenance & consumables
for the John Deere PowerTech 6.8L| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Heavy Duty Air Cleaner | GM94203 | Amazon eBay | ||
| Fuel filter | Primary | — | |||
| Oil filter | Cartridge | ×1 | — | ||
| Battery | 450 CCA | — |
Compatible filters for the John Deere PowerTech 6.8L — cross-referenced via Donaldson. Options to verify against your serial number, not confirmed for this exact unit.
Common questions
What is the power rating of the Kohler 120REOZT4?
The Kohler 120REOZT4 is rated 105 kW standby (131.0 kVA).
Which engine powers the Kohler 120REOZT4?
The Kohler 120REOZT4 is powered by the John Deere PowerTech 6.8L engine.
What fuel does the Kohler 120REOZT4 use?
The Kohler 120REOZT4 runs on Diesel.
What alternator does the Kohler 120REOZT4 use?
The Kohler 120REOZT4 uses a 4R12X alternator.
Which oil filter part number does the Kohler 120REOZT4 take?
The Kohler 120REOZT4 uses oil filter part numbers KOHLER GM32809, KOHLER 360031.
What fuel filter fits the Kohler 120REOZT4?
The Kohler 120REOZT4 uses fuel filter part numbers KOHLER GM50006, KOHLER 336661.
What air filter does the Kohler 120REOZT4 use?
The Kohler 120REOZT4 uses air filter part number GM94203.
Parts
8| Part # | Description | Qty | System | |
|---|---|---|---|---|
| GM100703 | Element, Primary | 1 | Air filter | Amazon eBay |
| GM100704 | Element, Safety | 1 | Air filter | Amazon eBay |
| GM62396 | Hose, Reducer | 1 | Hose | Amazon eBay |
| GM94203 | Heavy Duty Air Cleaner | 1 | Air filter | Amazon eBay |
| 100REOZJ4 | Stationary non-emergency gen-sets | Service part / kit | Amazon eBay | |
| 120REOZT4 | Mobile generator sets | Service part / kit | Amazon eBay | |
| 80REOZJ4 | Stationary non-emergency gen-sets | Service part / kit | Amazon eBay | |
| 90REOZT4 | Mobile generator sets | 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 | 3.2 | 0.8 | |
| Prime | 25% | 9.8 | 2.6 |
| Prime | 50% | 15.4 | 4.1 |
| Prime | 75% | 21.2 | 5.6 |
| Prime | 100% | 28.0 | 7.4 |