Service parts for the 2000 watt DC
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredOil system
1 requiredBelts
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Voltage options | 115 V, 230 V |
|---|---|
| Phase | DC |
Maintenance & consumables
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Filter | 1234-001 | Amazon eBay | ||
| Fuel filter | Fuel Filter | 1234-003 | Amazon eBay | ||
| Oil filter | Oil Filter | 1234-002 | Amazon eBay | ||
| Belt | Belt | 1234-004 | Amazon eBay |
Common questions
What voltages is the Cummins/Onan 2000 watt DC available in?
The Cummins/Onan 2000 watt DC is offered in 115 V, 230 V, DC-phase.
What oil filter does the Cummins/Onan 2000 watt DC use?
The Cummins/Onan 2000 watt DC uses oil filter part number 1234-002.
What fuel filter fits the Cummins/Onan 2000 watt DC?
The Cummins/Onan 2000 watt DC uses fuel filter part number 1234-003.
What air filter fits the Cummins/Onan 2000 watt DC?
The Cummins/Onan 2000 watt DC uses air filter part number 1234-001.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Engine cranks too stiffly | Too heavy oil in crankcase | Drain. Refill with lighter oil. See PREPARATION. |
| Engine cranks too stiffly | Engine stuck | Disassemble and repair. |
| Engine cranks too slowly when cranked electrically | Discharged or defective battery | Recharge or replace. |
| Engine cranks too slowly when cranked electrically | Loose connections | Tighten loose connections. |
| Engine cranks too slowly when cranked electrically | Corroded battery terminals | Clean corroded terminals. Replace cable if necessary. |
| Engine cranks too slowly when cranked electrically | Brushes worn excessively or making poor contact | Replace brushes or clean commutator. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan 2000 watt DC troubleshooting guide (105 entries) →
Parts
6| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 1234-001 | Air Filter | 1 | Air filter | Amazon eBay |
| 1234-002 | BLEED PLUG | 1 | Bleed plug | Amazon eBay |
| 1234-003 | Fuel Filter | 1 | Fuel filter | Amazon eBay |
| 1234-004 | Belt | 1 | Belt | Amazon eBay |
| 1234-005 | AIR CLEANER | 1 | Air cleaner | Amazon eBay |
| 1234-006 | OIL FILTER | 1 | Oil filter | 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
This page was generated from the 1 manufacturer document above by automated extraction; every figure shown is copied from one of them. How the data is compiled.