The Kohler K20U generator is listed with standby output of 19 kW, Diesel Fuel/HVO fuel, 60 Hz operation, 3 available voltage configurations, Three phase, and sound level of 1.0 dBA @ [{'model': 'Compact version @7m in dB(A) 60Hz (100% PRP)', 'value': 64}, {'model': 'M136 – Dimensions DW soundproofed version @7m in dB(A) 60Hz (100% PRP)', 'value': 64}] m.
Generator • Diesel Fuel/HVO • 60 Hz • Three phase
Key specifications
Useful generator charts
Charts are shown only when this model has enough usable source data.
0.59 gal/hr
0.96 gal/hr
1.36 gal/hr
1.75 gal/hr
30.2 hr
18.8 hr
13.2 hr
10.3 hr
18.3 kW
23.7 kW
19 kW
17 kW
How the Kohler K20U compares
This compares the supplied numeric specification with Kohler generators in the same broad standby-power class where enough comparable data exists.
About 8% below the similar-output Kohler average. Around the 37th percentile for this field.
About 7% below the similar-output Kohler average. Around the 54th percentile for this field.
About 99% below the similar-output Kohler average. Around the 1st percentile for this field.
About 4% below the similar-output Kohler average. Around the 52nd percentile for this field.
Generator information
| Manufacturer | Kohler |
|---|---|
| Model | K20U |
| Generator type | Generator |
| Fuel | Diesel Fuel/HVO |
| Frequency | 60 Hz |
Electrical output
| Standby power | 19 kW |
|---|---|
| Prime power | 17 kW |
| Standby kVA | 23.0 |
| Voltage options | 480/277 V, 440/254 V, 220/127 V |
| Phase | Three phase |
| Power factor | 0.8 |
Engine, cooling and controls
| Engine model | Kohler KDI 1903M |
|---|---|
| Engine displacement | 114 cu in (1.861 L) |
| Aspiration / cooling | Natural |
| Rated engine speed | 1800 rpm |
| Engine oil capacity | 2.35 gal (8.9 L) |
| Engine coolant capacity | 2.77 gal (10.5 L) |
| Oil capacity | 1.72 gal (6.5 L) |
| Coolant capacity | 1.8 gal (6.8 L) |
| Controller | APM303, APM403, M80 |
| Alternator | KH00501T (4-pole, Class H insulation) |
| Emissions | Stage IIIA |
Physical specifications
| Dry weight | 1, 036 lb (470 kg) |
|---|---|
| Dimensions (L × W × H) | 57.5 × 28.1 × 42.6 in (1460 × 715 × 1081 mm) |
| Sound level | 1.0 dBA @ [{'model': 'Compact version @7m in dB(A) 60Hz (100% PRP)', 'value': 64}, {'model': 'M136 – Dimensions DW soundproofed version @7m in dB(A) 60Hz (100% PRP)', 'value': 64}] m |
Battery
| Battery voltage | 12 V |
|---|
Fuel system and runtime
| Fuel tank | 18 gal (68 L) |
|---|
Maintenance and service parts
| Engine oil | Interval: 500 hr; Capacity: 500.0 l |
|---|---|
| Oil filter | Interval: 500 hr; Capacity: ×1 |
| Fuel filter | Interval: 500 hr |
| Coolant | Capacity: 500.0 l |
| Belt | Interval: 2000 hr |
Estimated fuel consumption
| 25% load | 0.59 gal/hr (2.3 L/hr) |
|---|---|
| 50% load | 0.96 gal/hr (3.6 L/hr) |
| 75% load | 1.36 gal/hr (5.2 L/hr) |
| 100% load | 1.75 gal/hr (6.6 L/hr) |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Kohler North America generator website.