The Kohler 8.5 RES generator is listed with standby output of 7 kW, natural gas or propane fuel, 60 Hz operation, 120/240 V, 115/230 V output, Single phase, rated current of 35 A, and sound level of 65 dBA @ 23 ft (7 m).
Generator • natural gas or propane • 60 Hz • Single phase
Key specifications
Useful generator charts
Charts are shown only when this model has enough usable source data.
17.4 kW
24.8 kW
7 kW
7 kW
How the Kohler 8.5 RES compares
This compares the supplied numeric specification with Kohler generators in the same broad standby-power class where enough comparable data exists.
About 10% below the similar-output Kohler average. Around the 46th percentile for this field.
About 13% below the similar-output Kohler average. Around the 47th percentile for this field.
About 13% above the similar-output Kohler average. Around the 64th percentile for this field.
About 6% below the similar-output Kohler average. Around the 9th percentile for this field.
About 38% below the similar-output Kohler average. Around the 30th percentile for this field.
Generator information
| Manufacturer | Kohler |
|---|---|
| Model | 8.5 RES |
| Generator type | Generator |
| Fuel | natural gas or propane |
| Frequency | 60 Hz |
Electrical output
| Standby power | 7 kW |
|---|---|
| Prime power | 7 kW |
| Standby kVA | 7.0 |
| Voltage options | 120/240 V, 115/230 V |
| Phase | Single phase |
| Rated current | 35 A |
| Power factor | 1.0 |
Engine, cooling and controls
| Engine model | Kohler CH-20 |
|---|---|
| Engine displacement | 38 cu in (0.624 L) |
| Aspiration / cooling | air-cooled |
| Rated engine speed | 3600 rpm |
| Engine oil capacity | 0.5 gal (1.9 L) |
| Oil capacity | 0.5 gal (1.9 L) |
| Controller | ADC 2100, ADC-RES, ADC-RES Advanced Digital, Advanced Digital, Advanced Digital (ADC 2100), Advanced Digital Features |
| Alternator | Kohler 2F4 |
Physical specifications
| Dry weight | 401 lb (182 kg) |
|---|---|
| Dimensions (L × W × H) | 42.5 × 30.5 × 32.5 in (1079 × 774 × 826 mm) |
| Sound level | 65 dBA @ 23 ft (7 m) |
Battery
| Battery cranking | 675 CCA |
|---|---|
| Battery voltage | 12 V |
| Battery quantity | 1 |
Fuel consumption
| Standby | 25%; 50%; 60%; 75%; 100% |
|---|---|
| Row | 77.0 gal/h @ 25%; 93.0 gal/h @ 50%; 113.0 gal/h @ 75%; 132.0 gal/h @ 100% |
Maintenance and service parts
| Engine oil | Part number: ADV–6823; Interval: 100 hr; Specification: Change oil |
|---|---|
| Oil filter | Part number: 51050; Interval: 200 hr; Capacity: ×1 |
| Fuel filter | Interval: 8 hr; Specification: Fuel Filter |
| Air filter | Part number: 24 083 02; Interval: 500 hr |
| Coolant | Specification: Cooling System |
| Coolant filter | Interval: 500 hr; Specification: Inspect and clean the oil cooler |
| Belt | Interval: 500 hr; Specification: Belt |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Kohler North America generator website.