Service parts for the 7.5DNAB
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
| Frequency | 60.0 Hz |
|---|---|
| Standby kVA | 7 |
| Voltage options | 12 V |
| Phase | 1/3 |
| Battery voltage | 12V V |
Maintenance & consumables
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Fuel filter | Filter, Fuel (Includes Element) | 186-6523 | Amazon eBay | ||
| Oil filter | Filter, Oil | 186-6025 | Amazon eBay |
Common questions
What oil filter does the Cummins/Onan 7.5DNAB use?
The Cummins/Onan 7.5DNAB uses oil filter part number 186-6025.
What fuel filter does the Cummins/Onan 7.5DNAB use?
The Cummins/Onan 7.5DNAB uses fuel filter part number 186-6523.
Parts
14| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 186-6003 | Bearing, Gear End Main (Standard) | 1 | Gasket | Amazon eBay |
| 186-6021 | Adapter, Oil Filter | 1 | Gasket | Amazon eBay |
| 186-6025 | Filter, Oil | 1 | Gasket | Amazon eBay |
| 186-6450 | Pump, Fuel (DNAA) | 2 | Pump | Amazon eBay |
| 186-6523 | Filter, Fuel (Includes Element) | 1 | Fuel filter | Amazon eBay |
| 186-6524 | Element, Fuel Filter | 1 | Fuel filter | Amazon eBay |
| 186-6532 | Injector, Fuel (Includes Nozzle) (DNAA) | 2 | Injector | Amazon eBay |
| 186-6580 | Switch, Oil Pressure Shutoff (5psi) | 1 | Gasket | Amazon eBay |
| 100-3396-03 | Engine, Replacement W/Mechanical Governor (DNAA Spec A) | 1 | Service part / kit | Amazon eBay |
| 100-3396-04 | Engine, Replacement W/Electronic Governor (DNAA Spec A) | 1 | Service part / kit | Amazon eBay |
| 186-6281 | Kit, Expansion Plug | 1 | Service part / kit | Amazon eBay |
| 186-6500 | Block Assy, Cylinder (Includes Parts Marked *) (DNAA) | 1 | Service part / kit | Amazon eBay |
| 186-6501 | Block Assy, Cylinder (DNAB) | 1 | Service part / kit | Amazon eBay |
| 186-6572 | Solenoid (12V) | 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.
Available documents
Parts manual — 967-0200B Onan DNAA DNAB Parts Manual (12-1999) (Cummins/Onan)