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Cummins/Onan 8.0 DKD Generator Set

The Cummins/Onan 8.0 DKD is a 8 kW (8 kVA) No. 2 Diesel standby generator set. It operates at single-phase. It holds about 4 L (1.1 gal) of oil and 3.8 L (1.0 gal) of coolant, with a maximum ambient rating of 30 °C. Starting uses 1 battery rated 425 CCA at 12 V.

8 kW
Standby
4.0 L
Oil capacity
2
Document types

How to read your Cummins/Onan serial & model number →

Typical fuel consumption for 5–10 kW Diesel generators →

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Service parts for the 8.0 DKD

Grouped by system, with how many of each the parts manual calls for.

Air intake

1 required

Fuel system

1 required

Oil system

1 required

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

FuelNo. 2 Diesel
Standby power8 kW
Standby kVA8
Oil capacity4.0 L
PhaseSingle
Power factor1.0
Battery cranking425 CCA
Battery voltage12 V
Battery quantity1
Coolant capacity3.8 L
Max ambient30 °C

Maintenance & consumables

ItemSpecCapacityPart #Interval
Air filterAir Filter65-024 Amazon eBay
Fuel filterFuel Filter65-026 Amazon eBay
Oil filterOil Filter65-025 Amazon eBay

Common questions

What is the power rating of the Cummins/Onan 8.0 DKD?

The Cummins/Onan 8.0 DKD is rated 8 kW standby (8.0 kVA).

What fuel does the Cummins/Onan 8.0 DKD use?

The Cummins/Onan 8.0 DKD runs on No. 2 Diesel.

What is the cooling system capacity of the Cummins/Onan 8.0 DKD?

The Cummins/Onan 8.0 DKD cooling system holds 3.8 liters (1.0 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

How much oil does the Cummins/Onan 8.0 DKD take?

The Cummins/Onan 8.0 DKD has an engine oil capacity of 4 liters (4.2 US quarts), per the manufacturer specification sheet.

What battery does the Cummins/Onan 8.0 DKD use?

The Cummins/Onan 8.0 DKD uses 1 battery, 12 V each, 425 CCA, per the manufacturer specification sheet.

What oil filter does the Cummins/Onan 8.0 DKD use?

The Cummins/Onan 8.0 DKD uses oil filter part number 65-025.

Which fuel filter part number does the Cummins/Onan 8.0 DKD take?

The Cummins/Onan 8.0 DKD uses fuel filter part number 65-026.

Which air filter part number does the Cummins/Onan 8.0 DKD take?

The Cummins/Onan 8.0 DKD uses air filter part number 65-024.

Parts

8
Part #DescriptionQtySystem
65-024Air Filter1Air filter Amazon eBay
65-025Oil Filter1Oil filter Amazon eBay
65-026Fuel Filter1Fuel filter Amazon eBay
65-027Battery1Battery Amazon eBay
65-028Spark Plug1Spark plug Amazon eBay
FS1532AIR CLEANER BODYAir filter Amazon eBay
EXS-1124-1EXHAUST MUFFLERService part / kit Amazon eBay
c-1102MACHINE SCREWSService part / kit Amazon eBay $199.99

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.

Available documents

Reference — 981-0624 Onan DKD (spec A-B) RV Genset Installation manual (01-1996) (Cummins/Onan)Parts manual — NET-Onan (Cummins/Onan)Service manual — 981-0124 Onan DKD (spec A-E) RV Genset Operator's manual (07-1995)l (Onan)

This page was generated from the 3 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.