Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 21 kW |
| Standby kVA | 21 |
| Prime power | 21 kW |
| Emissions | Tier III |
| Controller | Decision-Maker, Decision-Maker 3500 |
| Oil capacity | 11.0 L |
| Alternator | 4E4.2 |
| Voltage options | 120 V, 120/240 V |
| Phase | 1 |
| Rated current | 175 A |
| Battery cranking | 650 CCA |
| Battery voltage | 12 or 24 volt V |
| Coolant capacity | 4.4 L |
| Max ambient | 25 °C |
| Dimensions (L×W×H) | 1121×577×1197 mm |
| Dry weight | 422 kg |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil | 11.0 L | — |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Common questions
What is the power rating of the Kohler 21EKOZD?
The Kohler 21EKOZD is rated 21 kW standby (21.0 kVA).
What fuel does the Kohler 21EKOZD use?
The Kohler 21EKOZD runs on Diesel.
What alternator does the Kohler 21EKOZD use?
The Kohler 21EKOZD uses a 4E4.2 alternator.
Parts
5| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 229826 | Seawater Pump Impeller Kit | Impeller | PartsGeek | |
| ED0021752800-S | Oil Filter | Oil filter | Amazon eBay $22.90 PartsGeek | |
| ED0021753200-S | Fuel Filter Element | Fuel filter | Amazon eBay $49.97 PartsGeek | |
| GM90645 | V-Belt (Seawater Pump) | Belt | PartsGeek | |
| ED0090802840-S | Zinc Anode | Service part / kit | PartsGeek |
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 |
|---|---|---|---|
| 25% | 2.3 | 0.61 | |
| 50% | 3.7 | 0.98 | |
| 75% | 5.2 | 1.39 | |
| 100% | 6.7 | 1.77 | |
| Prime | 25% | 2.3 | 0.61 |
| Prime | 50% | 3.7 | 0.98 |
| Prime | 75% | 5.2 | 1.39 |
| Prime | 100% | 6.7 | 1.77 |
| Standby | 25% | 2.3 | 0.61 |
| Standby | 50% | 3.7 | 0.98 |
| Standby | 75% | 5.2 | 1.39 |
| Standby | 100% | 6.7 | 1.77 |
Available documents
Brochure — GSA Product List (Kohler)Brochure — PocketGuide (Kohler)Spec sheet (Kohler)Spec sheet — adv8881 (Kohler)Spec sheet — g2189 (Kohler)Spec sheet — g2190 (Kohler)Operator's manual (Kohler)Reference — FinalGSAPriceListEffective 3-20-2023 (Kohler)Reference — GSAPriceList (Kohler)Parts manual — G12-202-11-20-Sea-Spares-Kits-brochure (Kohler)Parts manual — tp6954 (Kohler)