Service parts for the 80REZG
Grouped by system, with how many of each the parts manual calls for.
Oil system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Natural Gas, LP Gas |
|---|---|
| Frequency | 50.0 Hz |
| Standby power | 81 kW |
| Standby kVA | 101 |
| Emissions | EPA-Certified for Stationary Emergency Applications |
| Controller | Decision-Maker 3+, Decision-Maker 3000, Decision-Maker 550 |
| Oil capacity | 7.6 L |
| Alternator | 4S7 (4-pole, Class H insulation) |
| Voltage options | 120/208 V, 127/220 V, 120/240 V, 139/240 V, 220/380 V, 277/480 V, 347/600 V |
| Phase | 3 |
| Rated current | 122 A |
| Power factor | 0.8 |
| Battery group | 1 |
| Battery cranking | 630 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 25.7 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 3506×1156×1696 mm |
| Sound level | 70.0 dBA @ 23 m |
Maintenance & consumables
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | GM16703 | Amazon $9.06 eBay $58.00 |
Voltage reconnection
| Voltage | Phase | Connection | Leads | Notes |
|---|---|---|---|---|
| 12-Lead | Alternator Reconnections diagram ADV-5875B-M (page 16) | |||
| 4-Lead | Alternator Reconnections diagram ADV-5875A-M (page 15) |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
How many kW is the Kohler 80REZG?
The Kohler 80REZG is rated 81 kW standby (101.0 kVA).
What kind of fuel does the Kohler 80REZG run on?
The Kohler 80REZG runs on Natural Gas, LP Gas.
What alternator comes on the Kohler 80REZG?
The Kohler 80REZG uses a 4S7 alternator. It has 4 poles. Insulation class H.
What oil filter does the Kohler 80REZG use?
The Kohler 80REZG uses oil filter part number GM16703.
Parts
75model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 08020 | F1805 | Air filter | Amazon eBay KuduParts $340.00 | |
| 250081 | Clamp, hose (2) | Air filter | Amazon eBay | |
| 253104 | Air filter | Amazon eBay | ||
| 253107 | Element, Air Cleaner | 1 | Air filter | Amazon $43.25 eBay $69.00 |
| 291542 | Air filter | Amazon eBay | ||
| 328006 | Hose, reducer (3.00 in. to 2.50 in. ID) | 1 | Air filter | Amazon eBay |
| 359249 | Hose, 45 deg. elbow (3.00 in. ID) | 1 | Air filter | Amazon eBay |
| GM14200 | Mount, Air Cleaner ( 6.76”ID) | 1 | Air filter | Amazon eBay |
| GM16132 | Belt, fan standard | 1 | Belt | Amazon eBay $86.00 |
| GM16531 | Spark plug | 1 | Oil filter | Amazon eBay $8.08 |
| GM16537 | Thermostat, 160 degree | 8 | Oil filter | Amazon eBay $22.50 |
| GM16703 | Filter, oil | 1 | Oil filter | Amazon $9.06 eBay $58.00 |
| GM19726 | Thermostat | 1 | Spark plug | Amazon eBay |
| GM22171 | Spark plug | 8 | Oil filter | Amazon eBay |
| GM28351 | Filter, oil | 1 | Oil filter | Amazon $25.85 eBay $19.46 |
| GM38998 | Spark plug | 1 | Oil filter | Amazon eBay |
| GM39428 | Belt, alternator | 1 | Oil filter | Amazon eBay $15.00 |
| GM42034 | Oil filter | 1 | Oil filter | Amazon eBay $41.00 |
| GM62309 | Element, air cleaner | 1 | Oil filter | Amazon eBay $91.00 |
| GM65427 | Belt, alternator | 1 | Oil filter | Amazon eBay $79.00 |
| GM66205 | 1 | Oil filter | Amazon eBay | |
| GM66788 | Air filter | Amazon eBay | ||
| GM67400 | Air filter | Amazon eBay | ||
| GM69427 | Air filter | Amazon eBay | ||
| GM90280 | Air Cleaner Assy | 1 | Air filter | Amazon eBay |
| GM90281 | Element, Air Cleaner | 1 | Air filter | Amazon $35.66 eBay KuduParts $43.00 |
| GM90680 | Air filter | Amazon eBay | ||
| GM90681 | Air filter | Amazon eBay | ||
| GM90682 | Air filter | Amazon eBay | ||
| GM92138 | Air filter | Amazon eBay | ||
| GM92140 | Air filter | Amazon eBay | ||
| M125A | Air filter | Amazon eBay | ||
| M6923 | Air filter | Amazon eBay | ||
| M933 | Air filter | Amazon eBay | ||
| 100ERES | Service part / kit | Amazon eBay | ||
| 100REZG | Service part / kit | Amazon eBay | ||
| 125ERES | Service part / kit | Amazon eBay | ||
| 125REZG | Service part / kit | Amazon eBay | ||
| 150REZG | Service part / kit | Amazon eBay | ||
| 25REZG | Service part / kit | Amazon eBay | ||
| 25REZGB | Service part / kit | Amazon eBay | ||
| 30REZG | Service part / kit | Amazon eBay $14500.00 | ||
| 30REZGB | Service part / kit | Amazon eBay | ||
| 40ERES | Service part / kit | Amazon eBay | ||
| 40REZG | Service part / kit | Amazon eBay | ||
| 45ERES | Service part / kit | Amazon eBay | ||
| 45REZG | Service part / kit | Amazon eBay | ||
| 50ERES | Service part / kit | Amazon eBay | ||
| 50REZG | Service part / kit | Amazon eBay | ||
| 60ERES | Service part / kit | Amazon eBay | ||
| 60REZG | Service part / kit | Amazon eBay | ||
| 80ERES | Service part / kit | Amazon eBay | ||
| 80ERESB | Service part / kit | Amazon eBay | ||
| 80REZG | Service part / kit | Amazon eBay $16450.00 | ||
| 80REZGB | Service part / kit | Amazon eBay | ||
| 80RZGB | Service part / kit | Amazon eBay | ||
| GA10 | Service part / kit | Amazon eBay FridayParts $30.50 | ||
| GA11 | Service part / kit | Amazon eBay FridayParts $26.60 | ||
| GA12 | Service part / kit | Amazon eBay | ||
| GA13 | Service part / kit | Amazon eBay | ||
| GA14 | Service part / kit | Amazon eBay FridayParts $38.00 | ||
| GA15 | Service part / kit | Amazon eBay FridayParts $26.60 | ||
| GA16 | Service part / kit | Amazon eBay FridayParts $20.99 | ||
| GA17 | Service part / kit | Amazon eBay | ||
| GA18 | Service part / kit | Amazon eBay FridayParts $26.60 | ||
| GM64060 | Service part / kit | Amazon eBay | ||
| GM65362 | Service part / kit | Amazon eBay | ||
| GM66092 | Service part / kit | Amazon eBay | ||
| GM66590 | Service part / kit | Amazon eBay | ||
| GM66910 | Service part / kit | Amazon eBay | ||
| GM66911 | Service part / kit | Amazon eBay | ||
| GM69415 | Service part / kit | Amazon eBay | ||
| GM71610 | Service part / kit | Amazon eBay | ||
| GM86748 | Service part / kit | Amazon eBay | ||
| GM86752 | Service part / kit | Amazon eBay |
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 |
|---|---|---|---|
| Standby | 7.3 | 1.93 | |
| Standby | 25% | 12.4 | 3.28 |
| Standby | 50% | 18.9 | 4.99 |
| Standby | 75% | 23.5 | 6.21 |
| Standby | 100% | 28.7 | 7.58 |
Available documents
Spec sheet — 80REZG (Kohler)Spec sheet — Kohler-80REZG-spec-sheet (Kohler)Reference (Kohler)Reference — Reinstated Enclosures (Kohler)Parts manual — tp6667 (Kohler)Service manual — tp6712 (Kohler)