Specifications
| Fuel | LP Gas |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 50 kW |
| Standby kVA | 63 |
| Prime power | 36 kW |
| Emissions | EPA-Certified for Stationary Emergency Applications |
| Controller | Decision-Maker 3000, Decision-Maker 3500, Decision-Maker 550 |
| Oil capacity | 6.2 L |
| Voltage options | 120/208 V, 277/480 V, 120/240 V |
| Phase | 3 Ph |
| Circuit breaker | 150 A |
| Dimensions (L×W×H) | 3680×1867×1707 mm |
| Dry weight | 1381 kg |
| Sound level | 69.0 dBA @ 7 m |
| Fuel tank | 625.0 L |
| Tank runtime | 37 hr |
Engine
| Oil capacity | 6.2 L |
|---|---|
| Coolant capacity | 20.8 L |
| Displacement | 5.0 L |
| Aspiration | Natural Aspiration |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the General Motors Industrial Powertrain Vortec 5.0 L| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | Cartridge | GM16703 | Amazon eBay $10.00 | ||
| Coolant | 20.8 L | — | |||
| Oil | 6.2 L | — | 150 hr |
Common questions
What is the power rating of the Kohler 50REZG?
The Kohler 50REZG is rated 50 kW standby (63.0 kVA).
What engine does the Kohler 50REZG use?
The Kohler 50REZG is powered by the General Motors Industrial Powertrain Vortec 5.0 L engine.
What fuel does the Kohler 50REZG use?
The Kohler 50REZG runs on LP Gas.
What is the oil capacity of the Kohler 50REZG?
The General Motors Industrial Powertrain Vortec 5.0 L engine in the Kohler 50REZG has an oil capacity of 6.2 liters.
Parts
27model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 253107 | Element, air cleaner | 1 | Air filter | Amazon eBay $69.00 |
| 4024TF281 | Fan Belt | 1 | Belt | yemparts $72.24 |
| GM16132 | Belt, fan standard | 1 | Belt | Amazon eBay |
| GM16157 | Elbow, PCV system 5/8" 45 deg. | 1 | Hose | buy |
| GM16158 | Hose, PCV, 3/8" | 1 | Hose | buy |
| GM16178 | Starter | 1 | Starter | buy |
| GM16531 | Spark plug | 8 | Spark plug | Amazon eBay $8.08 |
| GM16703 | Oil filter | 1 | Oil filter | Amazon eBay $10.00 |
| GM19726 | Thermostat | 1 | Thermostat | buy |
| GM22171 | Spark plug | 8 | Spark plug | Amazon eBay |
| GM34935 | Fuel Filter | 1 | Fuel filter | Amazon eBay $8.99 |
| GM38998 | Spark plug | 4 | Spark plug | Amazon eBay |
| GM39428 | Belt, alternator | 1 | Belt | Amazon eBay $15.00 |
| GM62309 | Element, air cleaner | 1 | Air filter | Amazon eBay $510.99 |
| GM63750 | Oil Filter | 1 | Oil filter | Amazon eBay |
| GM63809 | Fuel Filter (primary) | 1 | Fuel filter | Amazon eBay |
| GM65427 | Belt, alternator | 1 | Belt | Amazon eBay |
| GM75142 | Dipstick | 1 | Sensor | buy |
| GM79585--S | Thermostat | 1 | Thermostat | buy |
| GM85017 | Belt, Alt | 1 | Belt | buy |
| GM85018 | Pulley, Water Pump w/o Lip | 1 | Pump | buy |
| GM85032 | Belt, Alt G-Rib .813" x 73.25" | 1 | Belt | buy |
| GM16131 | Pulley, CrnkSft/FAN | 1 | Service part / kit | buy |
| GM16143 | Grommet, PCV valve | 2 | Service part / kit | buy |
| GM16159 | Valve, PCV | 1 | Service part / kit | buy |
| GM51969 | Spacer, fan | 1 | Service part / kit | buy |
| GM75147 | Tube, Dipstick | 1 | 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.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 50% | 10.2 | 2.7 |
| Prime | 75% | 13.2 | 3.5 |
| Standby | 25% | 266.2 | |
| Standby | 50% | 388.0 | |
| Standby | 75% | 506.8 | |
| Standby | 100% | 596.9 |
Available documents
BrochureSpec sheetInstallation manualReferenceOwner's manualParts manualService manualWiring diagram