Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 23 kW |
| Standby kVA | 28 |
| Prime power | 20 kW |
| Emissions | Tier 4i |
| Controller | APM402, Decision-Maker 3000 |
| Oil capacity | 11.0 L |
| Alternator | 4D5.0 |
| 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 | 69.4 A |
| Power factor | 0.8 |
| Battery cranking | 650 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 11.4 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 1400×810×1085 mm |
| Dry weight | 520 kg |
Engine
| Oil capacity | 11.5 L |
|---|---|
| Coolant capacity | 11.4 L |
| Displacement | 3.178 L |
| Aspiration | Natural |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Kohler KDI 2504M| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil | genuine oil and filters recommended by Rehlko | — |
Service specifications
30| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | 10 in. weld flange bolt circle diameter B | 361.95 | mm (14.25 in.) | |
| Other | 10 in. weld flange outside diameter C | 406.4 | mm (16.0 in.) | |
| Other | 10 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 12 in. weld flange bolt circle diameter B | 431.80 | mm (17.00 in.) | |
| Other | 12 in. weld flange outside diameter C | 482.6 | mm (19.0 in.) | |
| Other | 12 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 14 in. weld flange bolt circle diameter B | 476.25 | mm (18.75 in.) | |
| Other | 14 in. weld flange outside diameter C | 533.4 | mm (21.0 in.) | |
| Other | 14 in. weld flange quantity of bolts / bolt hole diameter D | 12, 28.58 | mm (1.13 in.) | |
| Other | 16 in. weld flange bolt circle diameter B | 539.75 | mm (21.25 in.) | |
| Other | 16 in. weld flange outside diameter C | 596.9 | mm (23.5 in.) | |
| Other | 16 in. weld flange quantity of bolts / bolt hole diameter D | 16, 28.58 | mm (1.13 in.) | |
| Other | 18 in. weld flange bolt circle diameter B | 577.85 | mm (22.75 in.) | |
| Other | 18 in. weld flange outside diameter C | 635.0 | mm (25.0 in.) | |
| Other | 18 in. weld flange quantity of bolts / bolt hole diameter D | 16, 31.75 | mm (1.25 in.) | |
| Other | 20 in. weld flange bolt circle diameter B | 635.00 | mm (25.00 in.) | |
| Other | 20 in. weld flange outside diameter C | 698.5 | mm (27.5 in.) | |
| Other | 20 in. weld flange quantity of bolts / bolt hole diameter D | 20, 31.75 | mm (1.25 in.) | |
| Other | 5 in. weld flange bolt circle diameter B | 215.90 | mm (8.50 in.) | |
| Other | 5 in. weld flange outside diameter C | 241.30 | mm (9.50 in.) | |
| Other | 5 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 6 in. weld flange bolt circle diameter B | 254.0 | mm (10.0 in.) | |
| Other | 6 in. weld flange outside diameter C | 279.4 | mm (11.0 in.) | |
| Other | 6 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 8 in. weld flange bolt circle diameter B | 298.45 | mm (11.75 in.) | |
| Other | 8 in. weld flange outside diameter C | 342.9 | mm (13.5 in.) | |
| Other | 8 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | Weld flange angle A (10, 12, 14 in. nominal pipe size) | 30 | deg. | |
| Other | Weld flange angle A (16, 18, 20 in. nominal pipe size) | 22.5 | deg. | |
| Other | Weld flange angle A (5, 6, 8 in. nominal pipe size) | 45 | deg. |
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
What is the power rating of the Kohler 20REOZK?
The Kohler 20REOZK is rated 23 kW standby (28.8 kVA).
What engine is in the Kohler 20REOZK?
The Kohler 20REOZK is powered by the Kohler KDI 2504M engine.
What kind of fuel does the Kohler 20REOZK run on?
The Kohler 20REOZK runs on Diesel.
What's the oil capacity on a Kohler 20REOZK?
The Kohler KDI 2504M engine in the Kohler 20REOZK has an oil capacity of 11.5 liters.
Which alternator is fitted to the Kohler 20REOZK?
The Kohler 20REOZK uses a 4D5.0 alternator.
Parts
1| Part # | Description | Qty | System | |
|---|---|---|---|---|
| ED0082051370-S | COV.HEAD GASK.-OR SET 2504 M | 1 | Gasket | Amazon eBay $49.90 |
Service, wear & replacement parts referenced for this model and its engine — 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% | 2.4 | 0.6 |
| Prime | 50% | 3.8 | 1.0 |
| Prime | 75% | 5.4 | 1.4 |
| Prime | 100% | 7.1 | 1.9 |
| Standby | 25% | 2.4 | 0.6 |
| Standby | 50% | 4.1 | 1.1 |
| Standby | 75% | 6.0 | 1.6 |
| Standby | 100% | 7.8 | 2.1 |
Available documents
Spec sheet (Kohler)Spec sheet — g5435 (Kohler)Reference (Kohler)Reference — 15-60REOZK G6141 (Kohler)Reference — G6-39 0918AZ (Kohler)Service manual — sb616 (Kohler)Service manual — tp6924 (Kohler)