Service parts for the RGA-OP'
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredOil system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
Ratings spec sheet not in our library yet — see the documents below.
Maintenance & consumables
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Filter | L100-030 | Amazon eBay | ||
| Fuel filter | Fuel Filter | L100-045 | Amazon eBay | ||
| Oil filter | Oil Filter | L100-025 | Amazon eBay |
Common questions
Which oil filter part number does the Cummins/Onan RGA-OP' take?
The Cummins/Onan RGA-OP' uses oil filter part number L100-025.
Which fuel filter part number does the Cummins/Onan RGA-OP' take?
The Cummins/Onan RGA-OP' uses fuel filter part number L100-045.
What air filter does the Cummins/Onan RGA-OP' use?
The Cummins/Onan RGA-OP' uses air filter part number L100-030.
Troubleshooting
3Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Engine does not crank. | Check battery cables for clean tight connections (refer Checkout [BI). Check B1 starter solenoid and motor-if bad, repair or replace. Jumper battery cable B+ connection to B1 starter salenoid terminal. Does engine crank? Yes: Check B+ wiring to S11. and between S11 and K11. Check NC contacts of A1-K15 and K16 Replace if bad. With S11 in Start position, is battery voltage present between K11 terminal S and ground? |
| Engine cranks but does not start. | Check fuel system: fuel tank level, shut-off valves, fuel lines and connections, fuel filters, fuel pump and injection pump. Okay? No: Is K1 fuel solenoid and E5 fuel pump energize when S11 is in Start position? No: Is battery B+ applied to glow plug heaters when Preheat Switch is closed? Yes: Check B+ circuit to K14 coil. Test relay K14 per Checkout [E]. Test K1 fuel solenoid per Checkout [F]. No: Incorrect fuel? See Operator’s Manual recommendations. K13 per Checkouts [GI and [E]. Check heater wiring. |
| Engine starts but stops after running several seconds. | Check for a possible fault condition. If none, check fault monitors S1 through S4 and fault breaker CB12 for improper wiring. Is a fault condition indicated by fault breaker CB12 on control panel? No: Check for closing of S6 power latch switch. If okay, replace engine monitor PC board. Does latching relay A11-K12 energize and contacts close when generator set comes up to operating speed? Yes: Check all B+ wiring for shorts to ground. Does DC control breaker trip after generator set is started? |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
4| Part # | Description | Qty | System | |
|---|---|---|---|---|
| L100-025 | Oil Filter | 1 | Oil filter | Amazon eBay |
| L100-030 | Air Filter | 1 | Air filter | Amazon eBay |
| L100-045 | Fuel Filter | 1 | Fuel filter | Amazon eBay |
| L100-060 | Spark Plugs | 2 | Spark plug | 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.