Service parts for the 21EKOZD
Grouped by system, with how many of each the parts manual calls for.
Fuel system
1 requiredOil system
1 requiredBelts
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
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 | Fast-Response X (Class Class H insulation) |
| 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 |
| Wet weight | 440 kg |
Filters for the Caterpillar C3.6
3Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.
Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P554407 | Lube Filter, Spin-On Full Flow | CATERPILLAR 2409393, CATERPILLAR 7W2326, NAPA 1459, BALDWIN BT237 | KuduParts $25.00 FridayParts $26.84 |
| Fuel filter | P502420 | Fuel Filter, Cartridge | CATERPILLAR 2526338, CATERPILLAR 4415111, NAPA 600488, CLAAS 0011377510 | buy |
| Fuel filter | P550974 | Fuel Filter, In-Line | CATERPILLAR 2990378, CATERPILLAR 9R9925, NAPA 3270, BLAW KNOX 0016481600 | FridayParts $356.80 |
Maintenance & consumables
for the Caterpillar C3.6| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | with precleaner, automatic dust ejection and underhood intake | — | |||
| Fuel filter | Fuel Filter Element | ED0021753200-S | Amazon eBay $17.99 NAPA $43.91 FridayParts $68.86 | ||
| Oil filter | Oil Filter | ED0021752800-S | Amazon eBay $22.90 FridayParts $19.99 | ||
| Battery | heavy duty, maintenance free, 1000 CCA | — | |||
| Belt | V-Belt (Seawater Pump) | GM90645 | Amazon eBay $30.30 | ||
| Spark plug | — |
Common questions
How many kW is the Kohler 21EKOZD?
The Kohler 21EKOZD is rated 21 kW standby (21.0 kVA).
Which engine powers the Kohler 21EKOZD?
The Kohler 21EKOZD is powered by the Caterpillar C3.6 engine.
What kind of fuel does the Kohler 21EKOZD run on?
The Kohler 21EKOZD runs on Diesel.
What is the cooling system capacity of the Kohler 21EKOZD?
The Kohler 21EKOZD cooling system holds 4.4 liters (1.2 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the oil capacity of the Kohler 21EKOZD?
The Kohler 21EKOZD has an engine oil capacity of 11 liters (11.6 US quarts), per the manufacturer specification sheet.
What is the dry weight of the Kohler 21EKOZD?
The Kohler 21EKOZD has a dry weight of 422 kg (930 lb).
What voltages is the Kohler 21EKOZD available in?
The Kohler 21EKOZD is offered in 120 V, 120/240 V, 1-phase.
What size battery does the Kohler 21EKOZD need?
The Kohler 21EKOZD uses 12 or 24 volt V each, 650 CCA, per the manufacturer specification sheet.
What alternator comes on the Kohler 21EKOZD?
The Kohler 21EKOZD uses a Fast-Response X alternator. Insulation class Class H.
What oil filter does the Kohler 21EKOZD use?
The Kohler 21EKOZD uses oil filter part number ED0021752800-S.
What fuel filter does the Kohler 21EKOZD use?
The Kohler 21EKOZD uses fuel filter part number ED0021753200-S.
Parts
12| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 229826 | Seawater Pump Impeller Kit | 1 | Impeller | Amazon eBay $45.71 NAPA $40.56 FridayParts $33.59 |
| AEHQ8308 | Cat C3.6 diesel engine | Engine | Amazon eBay | |
| ED0021752800-S | OIL FILTER | 1 | Oil filter | Amazon eBay $22.90 FridayParts $19.99 |
| ED0021753090-S | Oil Filter Element | Oil filter | Amazon eBay $36.16 NAPA $51.17 FridayParts $19.50 | |
| ED0021753180-S | SECONDARY FUEL FILTER | 1 | Fuel filter | Amazon eBay $72.00 KuduParts $34.00 FridayParts $36.00 |
| ED0021753200-S | SECONDARY FUEL FILTER | 1 | Fuel filter | Amazon eBay $17.99 NAPA $43.91 FridayParts $68.86 |
| GM101994 | Air Intake Filter | Air filter | Amazon eBay $10.32 | |
| GM41014 | PRIMARY FUEL FILTER | Fuel filter | Amazon eBay $70.50 | |
| GM50644 | IMPELLER REPAIR KIT | 1 | Impeller | Amazon eBay $30.00 |
| GM90645 | BELT, SEAWATER PUMP | 1 | Belt | Amazon eBay $30.30 |
| X-6348-6 | DECAL | 12 | Decals | Amazon eBay |
| ED0090802840-S | ZINC ANODE KIT | 1 | Service part / kit | Amazon eBay $92.76 |
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
This page was generated from the 13 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.