Specifications
| Fuel | L.P./N.G. |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 300 kW |
| Standby kVA | 375 |
| Prime power | 270 kW |
| Controller | APM402, APM603, Decision-Maker 550, Decision-Maker 6000 |
| Oil capacity | 42.1 L |
| Alternator | 4M4019/4M4266 (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 |
| Rated current | [728, 688, 631, 570, 452] A |
| Power factor | 0.8 |
| Battery cranking | 925 CCA |
| Battery voltage | 12 V |
| Battery quantity | 2 |
| Coolant capacity | 227.3 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 3500×1750×2148 mm |
| Dry weight | 3200 kg |
Engine
| Oil capacity | 42.1 L |
|---|---|
| Coolant capacity | 177.0 L |
| Displacement | 18.273 L |
| Aspiration | Turbocharged, Charge Air-Cooled |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the PSI/Doosan D183L| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry | — | find | ||
| Fuel filter | — | find | |||
| Oil filter | ×2 | — | find | ||
| Belt | — | find | |||
| Coolant | — | ||||
| Oil | 42.1 L | — |
Common questions
What is the power rating of the Kohler 300REZX?
The Kohler 300REZX is rated 300 kW standby (375.0 kVA).
What engine does the Kohler 300REZX use?
The Kohler 300REZX is powered by the PSI/Doosan D183L engine.
What fuel does the Kohler 300REZX use?
The Kohler 300REZX runs on L.P./N.G..
What is the oil capacity of the Kohler 300REZX?
The PSI/Doosan D183L engine in the Kohler 300REZX has an oil capacity of 42.1 liters.
What alternator does the Kohler 300REZX use?
The Kohler 300REZX uses a 4M4019/4M4266 alternator. It has 4 poles. Insulation class H.
Parts
13model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 300REZXD | 300 KW L.P./N.G. GENSET | 1 | Service part / kit | PartsGeek |
| 350EOZCS | 350 KW DIESEL COMMERCIAL MARINE GENSET | 1 | Service part / kit | PartsGeek |
| 350REOZJC | 350 KW DIESEL GENSET | 1 | Service part / kit | PartsGeek |
| 350REOZJD | 350 KW DIESEL GENSET | 1 | Service part / kit | PartsGeek |
| 350REZXD | 350 KW L.P./N.G. GENSET | 1 | Service part / kit | PartsGeek |
| 400REOZJC | 400 KW DIESEL GENSET | 1 | Service part / kit | PartsGeek |
| 400REOZJD | 400 KW DIESEL GENSET | 1 | Service part / kit | PartsGeek |
| 500EOZCS | 500 KW DIESEL COMMERCIAL MARINE GENSET | 1 | Service part / kit | PartsGeek |
| 500REOZJC | 500 KW DIESEL GENSET | 1 | Service part / kit | PartsGeek |
| KD1250-4 | 1250 KW DIESEL TIER 4 GENSET | 1 | Service part / kit | PartsGeek |
| KD1250A | 1250 kW Diesel Genset | 1 | Service part / kit | PartsGeek |
| KG80 | 80 kW L.P./N.G. Genset | 1 | Service part / kit | PartsGeek |
| KG80R | 80 kW L.P./N.G. Genset | 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% | ||
| Prime | 50% | ||
| Prime | 75% | ||
| Prime | 100% | ||
| Standby | 25% | ||
| Standby | 50% | ||
| Standby | 75% | ||
| Standby | 100% |
Available documents
Brochure (Kohler)Brochure — 180-450REZX G6109 (Kohler)Brochure — 300-500REZX G6178 (Kohler)Brochure — Block Heater Kits g6174 (Kohler)Brochure — G6-39 0918AZ (Kohler)Brochure — GSA Product List (Kohler)Brochure — vertical circulator plug in Kohler. G6171 (Kohler)Spec sheet — 300REZXD SS 23 (Kohler)Spec sheet — G4-190 1018H (Kohler)Spec sheet — g4282 (Kohler)Spec sheet — g4296 (Kohler)Reference — FinalGSAPriceListEffective 3-20-2023 (Kohler)Reference — GSAPriceList (Kohler)Parts manual — kohler consolidated price list (Kohler)Parts manual — tp6704 (Kohler)Wiring diagram — TP-6832 1218G (Kohler)