HomeCummins/OnanCummins/Onan DGGD

Cummins/Onan DGGD Generator Set

The Cummins/Onan DGGD is a Diesel generator set powered by a Cummins/Onan B3.3 engine. It is available at 12 V, 3-phase. It holds 17 L (4.5 gal) of coolant. Starting uses 1 group-1 battery rated 660 CCA at 12 V. An integrated tank holds 17 L (4.5 gal).

3.3 L
Displacement
1
Document types

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

Service parts for the DGGD

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

Belts

1 required

Cooling system

1 required

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

Specifications

FuelDiesel
ControllerDetector
Voltage options12 V
Phase3-phase
Battery group1
Battery cranking660 CCA
Battery voltage12 V
Battery quantity1
Coolant capacity17 L
Fuel tank17.0 L

Engine

Cummins/Onan B3.3
Coolant capacity17.0 L
Displacement3.3 L
Aspirationradiator cooled
Rated speed1500 rpm

Maintenance & consumables

for the Cummins/Onan B3.3
ItemSpecCapacityPart #Interval
Air filterAir Filter12-0654 Amazon eBay
Fuel filterFuel Filter12-0658 Amazon eBay
Oil filterOil Filter12-0657 Amazon eBay
Battery500 hr
BeltBelt12-0660 Amazon eBay
Coolant
Coolant filterCoolant Filter12-0659 Amazon eBay
OilSee Cummins B3.3 Series Engines Operation and Maintenance Manual Specifications section.250 hr
Spark plug

Common questions

Which engine powers the Cummins/Onan DGGD?

The Cummins/Onan DGGD is powered by the Cummins/Onan B3.3 engine.

What fuel does the Cummins/Onan DGGD use?

The Cummins/Onan DGGD runs on Diesel.

Which oil filter part number does the Cummins/Onan DGGD take?

The Cummins/Onan DGGD uses oil filter part number 12-0657.

What fuel filter does the Cummins/Onan DGGD use?

The Cummins/Onan DGGD uses fuel filter part number 12-0658.

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

The Cummins/Onan DGGD uses air filter part number 12-0654.

Troubleshooting

6

Symptoms & remedies

SymptomRemedy
Green RUN lamp lights following engine startup.Indicates all engine systems are normal. No corrective action required.
PRE HI ENGINE TEMP lamp lights.Indicates engine has begun to overheat and engine temperature has risen to approximately 220°F (104° C) or coolant level is low on optionally wired sets. If generator is powering non-critical and critical loads and cannot be shut down, use the following: a. Reduce load if possible by turning off non-critical loads. b. Check air inlets and outlets and remove any obstructions to airflow. If engine can be stopped, follow procedure in step 3.
HI ENG TEMP lamp lights. Engine shuts down.Indicates engine has overheated (engine temperature has risen above 230°F/110°C) or coolant level is low. Allow engine to cool down completely before proceeding with the following checks: a. Check coolant level and replenish if low. Look for possible coolant leakage points and repair if necessary. b. Check for obstructions to cooling airflow and correct as necessary. c. Check for a slipping fan belt and tighten if loose. d. Reset control and restart after locating and correcting problem. Contact an authorized service center if none of the above.
PRE LO OIL PRES lamp lights. Engine continues to operate. (Engine can be programmed to shut down.)Indicates engine oil pressure has dropped to 20 psi (138 kPa). If generator is powering critical loads and cannot be shut down, wait until next shutdown period and then follow step 5 procedure. If engine can be stopped, follow procedures in step 5.
LO OIL PRES lamp lights. Engine shuts down.Indicates engine oil pressure has dropped to 14 psi (97 kPa). Check oil level, lines and filters. If oil system is OK but oil level is low, replenish. Reset control and restart. Contact an authorized service center if oil pressure is not in the range of 25 to 40 psi (172 to 275 kPa).
OVERCRANK lamp lights and engine stops cranking.Or Engine runs, shuts down, and LO OIL PRES lamp lights.. a. Check for empty fuel tank, fuel leaks, or plugged fuel lines and correct as required. b. Check for dirty fuel filter and replace if necessary (see Maintenance section). c. Check for dirty or plugged air filter and replace if necessary (see Maintenance section). d. Reset the control and restart after correcting the problem. Contact an authorized service center for service if none of the above.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan DGGD troubleshooting guide (43 entries) →

Parts

14
Part #DescriptionQtySystem
12-0654Air Filter1Air filter Amazon eBay
12-0657Oil Filter1Oil filter Amazon eBay
12-0658Fuel Filter1Fuel filter Amazon eBay
12-0659Coolant Filter1Coolant filter Amazon eBay
12-0660Belt1Belt Amazon eBay
12-0661Battery1Battery Amazon eBay
12-0662Spark Plug1Spark plug Amazon eBay
S103Selector switchSwitch Amazon eBay
TB1-5Charger AC Failure1Terminal block Amazon eBay FridayParts $20.80
TB1-6Control box terminal (TB1-6)Terminal Amazon eBay
A11-TB1-6REMOTE STARTService part / kit Amazon eBay
A11-TB1-7(REMOTE START)6Service part / kit Amazon eBay
TB1-7B+ OUTPUTService part / kit Amazon eBay
TB1-8Jump TB1-8 to 10 Harness Relay #1 COM Blue N/O White / Blue1Service part / kit Amazon eBay FridayParts $87.88

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
60hz15.24.02
Full load15.24.02
Prime12.13.2
Standby11.02.91

Available documents

Service manual — 960-0162 Cummins DGGD DGHD DGHE Operators Manual (2-2002) (Cummins/Onan)Service manual — 960-0166 Cummins DGGD DGHD DGHE Operator's Manual (8-2015)Service manual — 960-0517 Cummins DGGD DGHD DGHE Service Manual (2-2002) (Cummins/Onan)Service manual — 960-0520C Cummins DGGD DGHD DGHE Service Manual (2-2004) (Cummins/Onan)Service manual — 960-0626 Cummins DGGD DGHD DGHE Installation Manual (2-2002) (Cummins/Onan)Service manual — 960-0629C Cummins DGGD DGHD DGHE Installation Manual (2-2004) (Cummins/Onan)