Service parts for the DM8491
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredOil system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Frequency | 50.0 Hz |
|---|---|
| Standby power | 400 kW |
| Standby kVA | 500 |
| Controller | EMCP 4.1 |
| Oil capacity | 60.0 L |
| Alternator | LC6114D |
| Voltage options | 400 V |
| Phase | Single Phase |
| Coolant capacity | 58.1 L |
| Max ambient | 923 °C |
| Dimensions (L×W×H) | 3800×1130×2215 mm |
| Dry weight | 3734 kg |
| Fuel tank | 105.2 L |
| Tank runtime | 1.0 hr |
Engine
| Oil capacity | 60.0 L |
|---|---|
| Coolant capacity | 57.8 L |
| Displacement | 15.2 L |
| Aspiration | Air-to-Air Aftercooled |
| Rated speed | 1500 rpm |
Maintenance & consumables
for the Caterpillar C15 ATAAC| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | 46822 | 1250 hr | Amazon eBay $218.50 FridayParts $132.57 | ||
| Fuel filter | 33674 | 1250 hr | Amazon eBay $50.97 PartsGeek $19.97 KuduParts $147.00 | ||
| Oil filter | 2P4005 | 1250 hr | Amazon eBay $32.99 PartsGeek $23.97 KuduParts $39.00 | ||
| Battery | — | 1250 hr | |||
| Belt | — | 1250 hr | |||
| Coolant | 57.8 | — | 1250 hr | ||
| Oil | 60.0 L | — | |||
| Spark plug | — |
Common questions
What size generator is the Caterpillar DM8491?
The Caterpillar DM8491 is rated 400 kW standby (500.0 kVA).
What engine does the Caterpillar DM8491 use?
The Caterpillar DM8491 is powered by the Caterpillar C15 ATAAC engine.
How much oil does the Caterpillar DM8491 take?
The Caterpillar C15 ATAAC engine in the Caterpillar DM8491 has an oil capacity of 60.0 liters.
What alternator comes on the Caterpillar DM8491?
The Caterpillar DM8491 uses a LC6114D alternator.
Which oil filter part number does the Caterpillar DM8491 take?
The Caterpillar DM8491 uses oil filter part number 2P4005.
Which fuel filter part number does the Caterpillar DM8491 take?
The Caterpillar DM8491 uses fuel filter part number 33674.
What air filter fits the Caterpillar DM8491?
The Caterpillar DM8491 uses air filter part number 46822.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Standby | 75.0 | 20.0 |
Available documents
Spec sheet — 500 kVA StandbyC15 Lean I6 EU (Caterpillar)