Service parts for the GSAA
Grouped by system, with how many of each the parts manual calls for.
Fuel system
1 requiredOil system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Natural Gas, Propane |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 10 kW |
| Controller | Transfer Switch |
| Oil capacity | 1.6 L |
| Voltage options | 120/240 V |
| Phase | 1 |
| Power factor | 1.0 |
| Battery cranking | 530 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
Maintenance & consumables
for the Cummins/Onan GSAA engine| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Engine air filter element replacement | — | 300 hr | ||
| Fuel filter | Change fuel filter every 1000 hours or as needed. | 0501-0776-06 | 1000 hr | Amazon eBay | |
| Oil filter | Engine oil filter replacement | — | 300 hr | ||
| Battery | Starting battery clean/check/replace | — | 150 hr | ||
| Belt | Inspect belts for wear and replace if necessary. | — | |||
| Coolant | Add coolant as needed to maintain proper level. Replace every 10 years or as needed. | — | |||
| Oil | Engine oil level check, change | 1.68 liters | 0503-2151 | 300 hr | Amazon eBay |
| Spark plug | Spark plug replacement (2 per engine) | — | 450 hr |
Common questions
What size generator is the Cummins/Onan GSAA?
The Cummins/Onan GSAA is rated 10 kW standby.
What engine does the Cummins/Onan GSAA use?
The Cummins/Onan GSAA is powered by the Cummins/Onan GSAA engine engine.
What fuel type does the Cummins/Onan GSAA take?
The Cummins/Onan GSAA runs on Natural Gas, Propane.
How much oil does the Cummins/Onan GSAA take?
The Cummins/Onan GSAA engine engine in the Cummins/Onan GSAA has an oil capacity of 1.6 liters.
Which fuel filter part number does the Cummins/Onan GSAA take?
The Cummins/Onan GSAA uses fuel filter part number 0501-0776-06.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| NO RESPONSE − STATUS INDICATOR LIGHT DEAD | Low/No battery voltage, poor battery connection, faulty battery, open harness connection, faulty start/stop switch, faulty LED | 1. Try generator set Start Switch if the remote display Start Switch does not respond, and vice versa 2. Clean and tighten positive (+) and negative (−) battery cable connections at the battery. 3. Recharge or replace battery. Refer to the battery manufacturer’s recommendations. |
| STARTING BATTERY RUNS DOWN | Marginal battery connections, battery, charging system, excessive cranking | 1. Clean and tighten positive (+) and negative (−) battery cable connections at the battery. 2. Recharge or replace battery. Refer to the battery manufacturer’s recommendations. 3. Have battery charger serviced by an authorized Cummins location. |
| STARTER ENGAGES − DISENGAGES | Cranking voltage dips below 6 VDC − Battery connections, battery, charging system, start/stop switches | 1. Clean and tighten positive (+) and negative (−) battery cable connections at the battery. 2. Recharge or replace battery. Refer to the battery manufacturer’s recommendations. 3. Have the battery charger serviced by an authorized Cummins Onan dealer. |
| NO AC POWER − GENERATOR SET RUNNING, STATUS LED ON STEADY OR FLASHING RAPIDLY | Circuit breakers tripped to OFF, due to short circuit or overloading. | 1. Reset or turn on generator set circuit breaker. 2. Reset or turn on circuit breaker in the distribution panel. 3. Reduce number of loads. 4. Have the circuits from the generator set and distribution panel verified by an authorized electrician. |
| GENERATOR SET CRANKS BUT DOES NOT START − NO FAULT CODE | Not holding start switch long enough to cause fault | 1. Check and record last fault code. 2. Crank generator set and hold switch until control stops cranking and displays fault code (approximately 30 seconds): troubleshoot fault code and reference last fault code recorded above if necessary. |
| GENERATOR SET RUNS BUT STOPS WHEN SWITCH IS RELEASED − NO FAULT CODE | Not holding start switch long enough to cause fault | 1. Check and record last fault code. 2. Start generator set and hold switch until control shuts down and displays fault code (approximately 30 seconds): troubleshoot fault code and reference last fault code recorded above if necessary. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan GSAA troubleshooting guide (28 entries) →
Parts
5| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 0501-0776-06 | Fuel hose assembly (LP/propane) | 1 | Hose | Amazon eBay |
| 0503-2151 | Oil drain hose assembly | 1 | Hose | Amazon eBay |
| 333-0770 | Battery heater kit (thermostatically controlled) | 1 | Thermostat | Amazon eBay |
| 0333-0770 | Optional battery heater | Service part / kit | Amazon eBay | |
| 0333-0771 | Optional engine oil and carburetor heater | 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.
Available documents
Operator's manual — 983-0104 Onan GSAA Spec A-C Operator's Manual (11-2009) (Cummins/Onan)Service manual — 983-0603 Onan GSAA Installation Manual (6-2012) (Cummins/Onan)