HomeCummins/OnanCummins/Onan GGPB

Cummins/Onan GGPB Generator Set

The Cummins/Onan GGPB is a 40 kW (50 kVA) Natural gas, Propane standby generator set powered by a GM 5.0 L engine. It is available at 12 V, single-phase. It holds about 5.5 L (1.5 gal) of oil and 26.1 L (6.9 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses group-31 battery rated 625 CCA at 12 V. The set measures 2104×83×40 mm (82.8×3.3×1.6 in) and weighs about 819 kg (1806 lb). An integrated tank holds 225 L (59.4 gal).

40 kW
Standby
5.0 L
Displacement
5.5 L
Oil capacity
3
Document types

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

Typical fuel consumption for 40–45 kW Bi-Fuel (NG/LP) generators →

Compare with other 40–45 kW Bi-Fuel (NG/LP) generators →

Specifications

FuelNatural gas, Propane
Standby power40 kW
Standby kVA50
ControllerPCC2100, PowerCommand 2100, PowerCommand PCC2100
Oil capacity5.5 L
Voltage options12 V
Phase3-phase, 1-phase
Battery group31
Battery cranking625 CCA
Battery voltage12 V
Coolant capacity26.1 L
Max ambient50.0 °C
Dimensions (L×W×H)2104×83×40 mm
Dry weight819 kg
Fuel tank225.0 L

Engine

GM 5.0 L
Displacement5.0 L

Maintenance & consumables

for the GM 5.0 L
ItemSpecCapacityPart #Interval
Air filter
Fuel filter
Oil filter
Battery
Belt
Coolant
Oil
Spark plug

Common questions

What is the power rating of the Cummins/Onan GGPB?

The Cummins/Onan GGPB is rated 40 kW standby (50.0 kVA).

What engine is in the Cummins/Onan GGPB?

The Cummins/Onan GGPB is powered by the GM 5.0 L engine.

What fuel type does the Cummins/Onan GGPB take?

The Cummins/Onan GGPB runs on Natural gas, Propane.

Troubleshooting

6

Fault codes

CodeMeaning
146Pre-High Cool Temp
151High Coolant Temp
197Low Coolant Level
234Overspeed
359Fail to Start
415Low Oil Pressure

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan GGPB troubleshooting guide (54 entries) →

Parts

1
Part #DescriptionQtySystem
A030M990Service part / kit Amazon eBay

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
Prime312.045.6
Standby7.01.8

Available documents

Spec sheet — s-1617 (Cummins/Onan)Operator's manual — A030G173 Cummins GGPA GGPB GGPC (spec A) Genset (with PCC2100) Operator's manual (01-2010)Service manual — GGPA, GGPB, and GGPC (Spec. A-B) service manual (Cummins/Onan)Service manual — GGPx 12 50k Generator Install (Cummins/Onan)Service manual — Installation Manual GGPA-C with GM 5.0L Engine, PCC 2100 (Cummins/Onan)Service manual — Operator Manual GGPA-C with GM 5.0L Engine, PCC 2100 (Cummins/Onan)
Other sets with this engine