HomeCummins/OnanCummins/Onan 59 DGCB

Cummins/Onan 59 DGCB Generator Set

The Cummins/Onan 59 DGCB is a 65 kW (81 kVA) Diesel standby generator set powered by a Cummins/Onan 4BT3.9-G2 engine. It is available at 220 V, Three-phase, 60 Hz and rated 65 A. It holds about 9.5 L (2.5 gal) of oil and 21 L (5.5 gal) of coolant, with a maximum ambient rating of 40 °C. Starting uses 1 group-165 battery at 12 V. An integrated tank holds 197 L (52.0 gal).

65 kW
Standby
3.9 L
Displacement
9.5 L
Oil capacity
1
Document types

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Specifications

FuelDiesel
Frequency60.0 Hz
Standby power65 kW
Standby kVA81
Prime power59 kW
ControllerPCL
Oil capacity9.5 L
AlternatorCummins/Onan 4BT3.9G2
Voltage options220 V, 480 V, 60 V
PhaseThree
Rated current65 A
Power factor0.8
Circuit breaker65 A
Battery group165 A/hr
Battery voltage12 V
Battery quantity1
Coolant capacity21 L
Max ambient40 °C
Fuel tank197.0 L

Engine

Cummins/Onan 4BT3.9-G2
Oil capacity11.5 L
Coolant capacity21.0 L
Displacement3.9 L
Aspirationturbo-charged
Rated speed1500 rpm

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Air filterAir cleaner with dry element and restriction indicator find
Fuel filterSpin-on paper element fuel filters find
Oil filterSpin-on full flow lube oil filter find
BeltDual flexible fuel lines and connectors find

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 Cummins/Onan 59 DGCB?

The Cummins/Onan 59 DGCB is rated 65 kW standby (81.0 kVA).

What engine does the Cummins/Onan 59 DGCB use?

The Cummins/Onan 59 DGCB is powered by the Cummins/Onan 4BT3.9-G2 engine.

What fuel does the Cummins/Onan 59 DGCB use?

The Cummins/Onan 59 DGCB runs on Diesel.

What is the oil capacity of the Cummins/Onan 59 DGCB?

The Cummins/Onan 4BT3.9-G2 engine in the Cummins/Onan 59 DGCB has an oil capacity of 11.5 liters.

What alternator does the Cummins/Onan 59 DGCB use?

The Cummins/Onan 59 DGCB uses a Cummins/Onan 4BT3.9G2 alternator.

Parts

2
Part #DescriptionQtySystem
982-0200Air Filter6Air filter PartsGeek
965-0520Cooling Fan37Service 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

RatingLoadL/hgal/h
Prime100%12.833.8
Standby100%14.538.3

Available documents

Parts manual — 4B 60HZ 32~72kw (Cummins/Onan)