Service parts for the 125GGHJ
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredOil system
1 requiredBelts
1 requiredIgnition
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Frequency | 60.0 Hz |
|---|---|
| Standby power | 125 kW |
| Controller | PowerCommand 2100 |
| Phase | 1 or 3 |
| Battery voltage | 12VDC V |
| Battery quantity | 1 |
Maintenance & consumables
for the Ford WSG1068-6005-A| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Filter, Air (14" x 3") | A034V218 | Amazon eBay | ||
| Oil filter | 123-2176 | Amazon eBay $61.00 | |||
| Belt | Belt, Serpentine - 6 Groove | 511-0161-21 | Amazon eBay | ||
| Spark plug | Ford Part Number AGSF-22-FM1, .035 in gap | 167-1639 | Amazon eBay $16.00 |
Common questions
What is the power rating of the Cummins/Onan 125GGHJ?
The Cummins/Onan 125GGHJ is rated 125 kW standby.
Which engine powers the Cummins/Onan 125GGHJ?
The Cummins/Onan 125GGHJ is powered by the Ford WSG1068-6005-A engine.
What oil filter does the Cummins/Onan 125GGHJ use?
The Cummins/Onan 125GGHJ uses oil filter part number 123-2176.
What air filter fits the Cummins/Onan 125GGHJ?
The Cummins/Onan 125GGHJ uses air filter part number A034V218.
Troubleshooting
6Fault codes
| Code | Meaning |
|---|---|
| 121 | Speed Signal Lost |
| 135 | Oil Pressure Sensor High |
| 141 | Oil Pressure Sensor Low |
| 143 | Pre-Low Oil Pressure Sensor |
| 144 | Coolant Temperature Sensor High |
| 145 | Coolant Temperature Sensor Low |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan 125GGHJ troubleshooting guide (53 entries) →
Parts
26| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 123-2248 | Separater, Oil | 1 | Oil filter | Amazon eBay |
| 130-5258 | Thermostat (85°C) (Must Purchase F1VY-8255-A O-ring seal from Ford) | 1 | Thermostat | Amazon eBay |
| 167-1639 | Plug, Spark (Ford Part Number AGSF-22-FM1) (.035 Gap) | 10 | Spark plug | Amazon eBay $16.00 |
| 191-2213 | Starter, Electric | 1 | Gasket | Amazon eBay FridayParts $139.55 |
| 193-0499 | Sensor, Oxygen | 1 | Sensor | Amazon eBay |
| 193-0529-01 | Sensor, Temperature | 1 | Sensor | Amazon eBay |
| 193-0551-02 | Map, Sensor | 1 | Sensor | Amazon eBay |
| 503-2223 | Hose, Breather | 1 | Hose | Amazon eBay |
| 503-2233 | Hose, Crank Case - Vent | 1 | Hose | Amazon eBay |
| 511-0161-21 | Belt, Serpentine - 6 Groove | 1 | Belt | Amazon eBay |
| A028X493 | Sender, Oil Pressure | 1 | Sensor | Amazon eBay FridayParts $52.50 |
| A034V042 | Alternator | 1 | Alternator | Amazon eBay |
| A034V046 | Tensioner | 1 | Belt | Amazon eBay $459.00 |
| A034V055 | Plug, Spark | 10 | Spark plug | Amazon eBay |
| A034V076 | Sensor, Map - Turbo | 2 | Sensor | Amazon eBay |
| A034V077 | Belt, V-10 | 1 | Belt | Amazon eBay |
| A034V213 | Turbocharger | 1 | Pump | Amazon eBay |
| A034V218 | Filter, Air (14" x 3") | 1 | Air filter | Amazon eBay |
| A034V246 | Sensor, Oxygen | 1 | Sensor | Amazon eBay $297.00 |
| YC22-8575-AA | Thermostat - 192F, optional (Ford Part Number) | 1 | Thermostat | Amazon eBay |
| 123-2176 | Separator, Oil | 1 | Service part / kit | Amazon eBay $61.00 |
| 518-0347 | Sealant, Thread | Service part / kit | Amazon eBay | |
| 518-0601 | Sealant, Thread (6 ml Tube) | 1 | Service part / kit | Amazon eBay |
| 525-0304 | Onan Green Enamel (Non-Metallic) - Gallon Can | 1 | Service part / kit | Amazon eBay |
| 525-0305 | 12 oz. Pressurized Spray Can | 1 | Service part / kit | Amazon eBay |
| 525-0306 | Onan Green Enamel (Non-Metallic) - Quart Can | 1 | Service 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.