HomeCummins/OnanCummins/Onan DHB 350.0

Cummins/Onan DHB 350.0 Generator Set

The Cummins/Onan DHB 350.0 is a 350 kW (437.5 kVA) ASTM No. 2 Diesel standby generator set powered by a Detroit Diesel V12-71T engine. It operates at 60 Hz. It holds about 34.1 L (9.0 gal) of oil and 138 L (36.5 gal) of coolant. Starting uses 2 group-8 batteries rated 450 CCA at 24 V. The set measures 2896×1651×1905 mm (114.0×65.0×75.0 in) and weighs about 3655 kg (8058 lb).

350 kW
Standby
13.96 L
Displacement
34.1 L
Oil capacity
1
Document types

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

Typical fuel consumption for 350–355 kW Diesel generators →

Compare with other 350–355 kW Diesel generators →

Specifications

FuelASTM No. 2 Diesel
Frequency60.0 Hz
Standby power350 kW
Standby kVA437
Prime power350 kW
Oil capacity34.1 L
AlternatorYB 17 60Hz (4-pole, Class Class F insulation)
Power factor0.8
Battery group8D
Battery cranking450 CCA
Battery voltage24 V
Battery quantity2
Coolant capacity138 L
Dimensions (L×W×H)2896×1651×1905 mm
Dry weight3655 kg

Engine

Detroit Diesel V12-71T
Oil capacity34.1 L
Coolant capacity52.0 L
Displacement13.96 L
AspirationTurbocharged
Rated speed1800 rpm

Common questions

What is the power rating of the Cummins/Onan DHB 350.0?

The Cummins/Onan DHB 350.0 is rated 350 kW standby (437.5 kVA).

What engine is in the Cummins/Onan DHB 350.0?

The Cummins/Onan DHB 350.0 is powered by the Detroit Diesel V12-71T engine.

What kind of fuel does the Cummins/Onan DHB 350.0 run on?

The Cummins/Onan DHB 350.0 runs on ASTM No. 2 Diesel.

What's the oil capacity on a Cummins/Onan DHB 350.0?

The Detroit Diesel V12-71T engine in the Cummins/Onan DHB 350.0 has an oil capacity of 34.1 liters.

Which alternator is fitted to the Cummins/Onan DHB 350.0?

The Cummins/Onan DHB 350.0 uses a YB 17 60Hz alternator. It has 4 poles. Insulation class Class F.

Troubleshooting

6

Fault codes

CodeMeaningCause
*Low oil pressure shutdown*Low oil pressure shutdown.A. Oil level. Replenish if necessary. b. Sensor. Faulty sensor will shut down engine. c. Refer to engine service manual for troubleshooting guide for oil system.

Symptoms & remedies

SymptomRemedy
Engine stops cranking and fault lamp lights, after cranking approximately 75 seconds.See engine service manual for troubleshooting fuel system. After correcting problem, reset engine monitor relay by placing Run-Stop/Reset-Remote switch to Stop/Reset, then back to the required running position.
Fault lamp lights immediately after engine starts.Check for: Overspeed condition as engine starts.
Fault lamp lights and engine shuts down after running for a period.Check the following: a. Oil level. Engine will shut down if sensor is closed. b. Check engine manual for troubleshooting oil system. c. High engine temperature. Check coolant level; check water flow (city water cooled sys
Overcrank fault lamp lights and engine stops cranking after approximately 75-seconds.See engine service manual for troubleshooting fuel system. After correcting fault, reset engine monitor relay by placing Run-Stop/Reset-Remote switch to Stop/Reset position, depressing Reset button, then to the required running position.
Engine runs, shuts down, cranks for 75-seconds, cranking cycle stops, Overcrank light ON.Check fuel supply.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan DHB 350.0 troubleshooting guide (11 entries) →

Parts

3
Part #DescriptionQtySystem
1A751p pe i1Service part / kit Amazon
B182ENGINE HEATER1Service part / kit Amazon
B193WOODWARD GOVERNOR1Service part / kit Amazon

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
Standby100%109.028.7

Available documents

Operator's manual — 945-0302 Onan DHB Operator's and Parts Manual (1-1975) (Cummins/Onan)
Other sets with this engine