Service parts for the 90REOZT4
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 | 85 kW |
| Standby kVA | 106 |
| Prime power | 76 kW |
| Emissions | FT4 |
| Controller | Decision-Maker 3500 |
| Oil capacity | 21.0 L |
| Alternator | 4R9X |
| Voltage options | 120/208 V, 120/240 V, 277/480 V, 347/600 V |
| Circuit breaker | 400 A |
| Battery cranking | 450 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 26.1 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 2951×1119×2156 mm |
| Dry weight | 2542 kg |
| Sound level | 69.0 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 | — |
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 size generator is the Kohler 90REOZT4?
The Kohler 90REOZT4 is rated 85 kW standby (106.0 kVA).
Which engine powers the Kohler 90REOZT4?
The Kohler 90REOZT4 is powered by the John Deere PowerTech 6.8L engine.
Is the Kohler 90REOZT4 diesel or gas?
The Kohler 90REOZT4 runs on Diesel.
What alternator comes on the Kohler 90REOZT4?
The Kohler 90REOZT4 uses a 4R9X alternator.
Which oil filter part number does the Kohler 90REOZT4 take?
The Kohler 90REOZT4 uses oil filter part numbers KOHLER GM32809, KOHLER 360031.
Which fuel filter part number does the Kohler 90REOZT4 take?
The Kohler 90REOZT4 uses fuel filter part numbers KOHLER GM50006, KOHLER 336661.
What air filter does the Kohler 90REOZT4 use?
The Kohler 90REOZT4 uses air filter part number GM94203.
Parts
53| 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 |
| 10000015220 | Panel, rear | 1 | Service part / kit | Amazon eBay |
| 10000015222 | Duct, rear | 1 | Service part / kit | Amazon eBay |
| 10000024262 | Decal, phase switch warning | 1 | Service part / kit | Amazon eBay |
| 10000024936 | Right rear corner assembly | 1 | Service part / kit | Amazon eBay |
| 10000024948 | Front hood assembly | 1 | Service part / kit | Amazon eBay |
| 10000024956 | Rear panel assembly | 1 | Service part / kit | Amazon eBay |
| 10000024971 | Foam, duct - side | 1 | Service part / kit | Amazon eBay |
| 10000024974 | Foam, rear duct - right | 1 | Service part / kit | Amazon eBay |
| 10000024975 | Left rear corner assembly | 1 | Service part / kit | Amazon eBay |
| 10000024976 | Left rear door assembly | 1 | Service part / kit | Amazon eBay |
| 10000024982 | Foam, control door | 1 | Service part / kit | Amazon eBay |
| 10000024983 | Foam, rear duct | 1 | Service part / kit | Amazon eBay |
| 10000024994 | Foam, rear duct - left | 1 | Service part / kit | Amazon eBay |
| 10000025002 | Foam, rear panel | 1 | Service part / kit | Amazon eBay |
| 10000027288 | Door, control - paralleling option | 1 | Service part / kit | Amazon eBay |
| 10000029864 | Decal set, MDG75 mechanical group | 1 | Service part / kit | Amazon eBay |
| 10000030536 | Foam, control door - paralleling option | 1 | Service part / kit | Amazon eBay |
| 10000030555 | Right rear corner assembly - paralleling | 1 | Service part / kit | Amazon eBay |
| 10000030564 | End panel assembly | 2 | Service part / kit | Amazon eBay |
| 10000030582 | Control door assembly - paralleling | 1 | Service part / kit | Amazon eBay |
| 100REOZJ4 | Stationary non-emergency gen-sets | Service part / kit | Amazon eBay | |
| 120REOZT4 | Mobile generator sets | Service part / kit | Amazon eBay | |
| 12142 | Decal, ground | 1 | Service part / kit | Amazon $162.97 eBay |
| 20677W | Duct, rear air | 1 | Service part / kit | Amazon eBay |
| 20795SRV | Foam, corner common | 1 | Service part / kit | Amazon eBay |
| 20798SRV | Foam, duct - face | 1 | Service part / kit | Amazon eBay |
| 20916Z | Bracket, prop rod | 1 | Service part / kit | Amazon eBay |
| 26386 | Decal, pinch point | 1 | Service part / kit | Amazon eBay |
| 30401W | Panel, end | 2 | Service part / kit | Amazon eBay |
| 30402SRV | Foam, end panel | 2 | Service part / kit | Amazon eBay |
| 30645 | Panel, emergency stop | 1 | Service part / kit | Amazon eBay |
| 32107W | Panel, left rear | 1 | Service part / kit | Amazon eBay |
| 32124W | Panel, side | 3 | Service part / kit | Amazon eBay |
| 32125SRV | Roof assembly | 1 | Service part / kit | Amazon eBay |
| 32286SRV | Foam, side panel | 3 | Service part / kit | Amazon eBay |
| 33313SRV | Control door assembly | 1 | Service part / kit | Amazon eBay |
| 33642 | Window, control door - UV | 1 | Service part / kit | Amazon eBay |
| 34989SRV | Assembly, E-stop switch | 1 | Service part / kit | Amazon eBay |
| 393531 | Side panel assembly | 3 | Service part / kit | Amazon eBay |
| 50876 | Decal, positive battery disconnect | 1 | Service part / kit | Amazon eBay |
| 51552 | Decal, high temp | 1 | Service part / kit | Amazon eBay |
| 60095 | Nut, .312-18 serrated flange | 26 | Service part / kit | Amazon eBay |
| 60268 | Rivet, .188 diameter x .126 to .250 grip | 4 | Service part / kit | Amazon eBay |
| 60505 | Nut, .312-18 U-clip - long type | 4 | Service part / kit | Amazon $15.99 eBay |
| 61091 | Screw, .312-18 x 1.0 serrated flange hex, G5 | 14 | Service part / kit | Amazon eBay |
| 65470 | Switch, E-stop operator | 1 | Service part / kit | Amazon eBay |
| 65580 | Block, E-stop contactor | 1 | 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 | 1.5 | 0.4 | |
| Prime | 25% | 7.0 | 1.0 |
| Prime | 50% | 11.7 | 3.1 |
| Prime | 75% | 16.6 | 4.4 |
| Prime | 100% | 22.1 | 5.8 |
| Standby | 1.5 | 0.4 | |
| Standby | 25% | 7.4 | 1.9 |
| Standby | 50% | 12.7 | 3.4 |
| Standby | 75% | 18.2 | 4.8 |
| Standby | 100% | 24.4 | 6.4 |
Available documents
Spec sheet — g5416 (Kohler)Reference — Diesel Mobile Expansion (Kohler)Reference — KOHLERReference — Mobile Rental Generators (Kohler)Owner's manual — tp6895 (Kohler)Parts manual — tp6894 (Kohler)