Service parts for the DGHD
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredOil system
1 requiredBelts
1 requiredCooling system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Diesel |
|---|---|
| Controller | Detector |
| Voltage options | 12 V |
| Phase | 3-phase |
| Battery group | 1 |
| Battery cranking | 660 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Coolant capacity | 17 L |
| Fuel tank | 17.0 L |
Engine
| Coolant capacity | 17.0 L |
|---|---|
| Displacement | 3.3 L |
| Aspiration | radiator cooled |
| Rated speed | 1500 rpm |
Maintenance & consumables
for the Cummins/Onan B3.3| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Filter | 12-0654 | Amazon eBay | ||
| Fuel filter | Fuel Filter | 12-0658 | Amazon eBay | ||
| Oil filter | Oil Filter | 12-0657 | Amazon eBay | ||
| Battery | — | 500 hr | |||
| Belt | Belt | 12-0660 | Amazon eBay | ||
| Coolant | — | ||||
| Coolant filter | Coolant Filter | 12-0659 | Amazon eBay | ||
| Oil | See Cummins B3.3 Series Engines Operation and Maintenance Manual Specifications section. | — | 250 hr | ||
| Spark plug | — |
Common questions
Which engine powers the Cummins/Onan DGHD?
The Cummins/Onan DGHD is powered by the Cummins/Onan B3.3 engine.
What fuel does the Cummins/Onan DGHD use?
The Cummins/Onan DGHD runs on Diesel.
What oil filter fits the Cummins/Onan DGHD?
The Cummins/Onan DGHD uses oil filter part number 12-0657.
What fuel filter fits the Cummins/Onan DGHD?
The Cummins/Onan DGHD uses fuel filter part number 12-0658.
What air filter fits the Cummins/Onan DGHD?
The Cummins/Onan DGHD uses air filter part number 12-0654.
Troubleshooting
6Symptoms & remedies
| Symptom | Remedy |
|---|---|
| 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 DGHD troubleshooting guide (43 entries) →
Parts
14| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 12-0654 | Air Filter | 1 | Air filter | Amazon eBay |
| 12-0657 | Oil Filter | 1 | Oil filter | Amazon eBay |
| 12-0658 | Fuel Filter | 1 | Fuel filter | Amazon eBay |
| 12-0659 | Coolant Filter | 1 | Coolant filter | Amazon eBay |
| 12-0660 | Belt | 1 | Belt | Amazon eBay |
| 12-0661 | Battery | 1 | Battery | Amazon eBay |
| 12-0662 | Spark Plug | 1 | Spark plug | Amazon eBay |
| S103 | Selector switch | Switch | Amazon eBay | |
| TB1-5 | Charger AC Failure | 1 | Terminal block | Amazon eBay FridayParts $20.80 |
| TB1-6 | Control box terminal (TB1-6) | Terminal | Amazon eBay | |
| A11-TB1-6 | REMOTE START | Service part / kit | Amazon eBay | |
| A11-TB1-7 | (REMOTE START) | 6 | Service part / kit | Amazon eBay |
| TB1-7 | B+ OUTPUT | Service part / kit | Amazon eBay | |
| TB1-8 | Jump TB1-8 to 10 Harness Relay #1 COM Blue N/O White / Blue | 1 | Service 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
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| 60hz | 15.2 | 4.02 | |
| Full load | 15.2 | 4.02 | |
| Prime | 12.1 | 3.2 | |
| Standby | 11.0 | 2.91 |
Available documents
Spec sheet — s-1653 (Cummins/Onan)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)