Service parts for the DNAB
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
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 4.5 kW |
| Prime power | 3.6 kW |
| Oil capacity | 4.4 L |
| Battery cranking | 525 CCA |
| Battery voltage | 12 V |
Engine
| Oil capacity | 3.2 L |
|---|---|
| Displacement | 0.72 L |
| Aspiration | Natural,Natural,Natural,Natural,Turbo-charger,Turbo-charger |
Maintenance & consumables
for the Cummins/Onan 4-Stroke Cycle Direct-Injection Diesel| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Cleaner, Air - Standard (Disposable) | 186-6593 | Amazon eBay | ||
| Fuel filter | Filter, Fuel (Includes Element) | 186-6523 | Amazon eBay | ||
| Oil filter | Filter, Oil | 186-6025 | Amazon eBay | ||
| Belt | Belt (Alternator, Spec A) | 186-6477 | Amazon eBay FridayParts $12.60 |
Common questions
What size generator is the Cummins/Onan DNAB?
The Cummins/Onan DNAB is rated 4.5 kW standby.
What engine is in the Cummins/Onan DNAB?
The Cummins/Onan DNAB is powered by the Cummins/Onan 4-Stroke Cycle Direct-Injection Diesel engine.
What fuel does the Cummins/Onan DNAB use?
The Cummins/Onan DNAB runs on Diesel.
How much oil does the Cummins/Onan DNAB take?
The Cummins/Onan 4-Stroke Cycle Direct-Injection Diesel engine in the Cummins/Onan DNAB has an oil capacity of 3.2 liters.
What is the continuous rating of the Cummins/Onan DNAB?
The Cummins/Onan DNAB is rated 3.6 kW prime, against 4.5 kW standby.
What size battery does the Cummins/Onan DNAB need?
The Cummins/Onan DNAB uses 12 V each, 525 CCA, per the manufacturer specification sheet.
What oil filter does the Cummins/Onan DNAB use?
The Cummins/Onan DNAB uses oil filter part number 186-6025.
What fuel filter fits the Cummins/Onan DNAB?
The Cummins/Onan DNAB uses fuel filter part number 186-6523.
What air filter fits the Cummins/Onan DNAB?
The Cummins/Onan DNAB uses air filter part number 186-6593.
Parts
96| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 186-6010 | Gasket, Side Cover | 1 | Gasket | Amazon eBay |
| 186-6017 | Gasket, Fuel Lift Pump | 1 | Gasket | Amazon eBay |
| 186-6025 | Filter, Oil | 1 | Gasket | Amazon eBay |
| 186-6030 | Pump, Oil | 1 | Gasket | Amazon eBay FridayParts $126.00 |
| 186-6031 | Valve, Oil Relief | 1 | Gasket | Amazon eBay |
| 186-6032 | Strainer, Oil | 1 | Gasket | Amazon eBay |
| 186-6063 | Seal, Oil (Flywheel End) | 1 | Gasket | Amazon eBay |
| 186-6103 | Tappet, Hydraulic | 4 DNAA / 6 DNAB | Gasket | Amazon eBay |
| 186-6117 | Gasket, Head Cover | 2 DNAA / 3 DNAB | Gasket | Amazon eBay |
| 186-6147 | Gasket, Cover (Gear End) | 1 | Gasket | Amazon eBay |
| 186-6148 | Seal, Rear Crank Oil (Gear End) | 1 | Gasket | Amazon eBay |
| 186-6166 | Hose, Bulk (39.4", 1 Meter) (Cut to Length) | 1 | Hose | eBay |
| 186-6202 | Gasket, Inlet Manifold | 4 DNAA / 6 DNAB | Gasket | eBay |
| 186-6206 | Gasket, Exhaust Manifold | 2 DNAA / 3 DNAB | Gasket | eBay |
| 186-6257 | Seal, Valve Stem | 4 DNAA / 6 DNAB | Seal | eBay FridayParts $17.99 |
| 186-6258 | Lever, Rocker (Includes Pivot) | 4 DNAA / 6 DNAB | Gasket | Amazon eBay $12.71 |
| 186-6270 | Hose (Air Cleaner) | 1 | Hose | eBay |
| 186-6353 | Hose, Fuel Inlet | 1 | Hose | eBay |
| 186-6405 | Gasket, Side Cover | 1 | Gasket | Amazon eBay |
| 186-6439 | Pump, Fuel Lift | 1 | Pump | eBay |
| 186-6450 | Pump, Fuel | 2 DNAA / 3 DNAB | Pump | Amazon eBay |
| 186-6469 | Alternator (12V, 45A) (Spec A) | 1 | Gasket | Amazon eBay |
| 186-6477 | Belt (Alternator, Spec A) | 1 | Gasket | Amazon eBay FridayParts $12.60 |
| 186-6519 | Gasket Set, Cylinder Head (Includes One each of 0.25, 0.38 and 0.51mm) | 2 DNAA / 3 DNAB | Gasket | eBay |
| 186-6523 | Filter, Fuel (Includes Element) | 1 | Fuel filter | Amazon eBay |
| 186-6524 | Element, Fuel Filter | 1 | Fuel filter | Amazon eBay $119.92 |
| 186-6530 | Pipe, Flexible Fuel | 1 | Hose | eBay |
| 186-6532 | Injector, Fuel (Includes Nozzle) | 2 DNAA / 3 DNAB | Injector | Amazon eBay |
| 186-6533 | Nozzle | 2 DNAA / 3 DNAB | Injector | eBay |
| 186-6559 | Belt (Alternator, Spec A) | 1 | Belt | eBay |
| 186-6580 | Switch, Oil Pressure Shutoff (5psi) | 1 | Gasket | Amazon eBay |
| 186-6581 | Switch, Head Temperature (Spec A) | 1 | Sensor | eBay |
| 186-6585 | Set, Decarbonizing Gasket | 1 | Gasket | eBay |
| 186-6586 | Set, Decarbonizing Gasket | 1 | Gasket | eBay |
| 186-6587 | Set, Overhaul Gasket | 1 | Gasket | eBay |
| 186-6588 | Set, Overhaul Gasket | 1 | Gasket | eBay |
| 186-6593 | Cleaner, Air - Standard (Disposable) | 1 | Gasket | Amazon eBay |
| 186-6615 | Sender, Temperature | 1 | Gasket | Amazon eBay |
| 186-6683 | Gasket, Muffler (Fibre) | 1 | Gasket | eBay |
| 186-6685 | Element, Heavy Duty Air Cleaner | 1 | Gasket | Amazon eBay |
| 186-6686 | Heavy Duty Air Cleaner Assy (Includes Element) | 1 | Air filter | eBay |
| 186-6804 | Kit, Glow Plug Relay | 1 | Glow plug | eBay |
| 186-6807 | Hose (Oil Distribution Block Assy) | 1 | Gasket | Amazon eBay |
| 186-6809 | Relay (Glow Plug Relay Kit) | 1 | Glow plug | eBay |
| 186-6811 | Belt (Alternator, Begin Spec B) | 1 | Gasket | Amazon eBay |
| 186-6836 | Gasket, Cylinder Head 1.40mm | 2 DNAA / 3 DNAB | Gasket | eBay |
| 186-6837 | Gasket, Cylinder Head 1.53mm | 2 DNAA / 3 DNAB | Gasket | eBay |
| 186-6838 | Gasket, Cylinder Head 1.65mm | 2 DNAA / 3 DNAB | Gasket | eBay |
| 186-6968 | Switch, Oil Pressure Warning (9 psi) | 1 | Gasket | Amazon eBay |
| 186-7056 | Hose, Suction (Single Wall Fuel Tank, Begin Spec B) | 1 | Hose | eBay |
| 186-7061 | Hose, Fuel Inlet (Dual Wall Fuel Tank, Begin Spec B) | 1 | Hose | eBay |
| 186-7082 | Hose, Leakoff (Dual Wall Fuel Tank, Begin Spec B) | 1 | Hose | eBay |
| 186-7088 | Holder, Brush | 4 | Brush | eBay |
| 186-7089 | Switch, Head Temperature (Begin Spec B) | 1 | Sensor | eBay |
| 186-7162-01 | Seal, Gasket (622mm) | 2 | Gasket | eBay |
| 191-2213 | Starter (1.4kW) | 1 | Starter | Amazon eBay NAPA $186.10 FridayParts $139.55 |
| 191-2215 | Kit, Starter Brush | 1 | Gasket | Amazon eBay |
| 191-2217 | Clutch (Starter) | 1 | Gasket | Amazon eBay |
| 191-2218 | Armature (Starter) | 1 | Gasket | Amazon eBay |
| 193-0448 | Sender, Oil Pressure | 1 | Sensor | Amazon eBay |
| 305-0844 | Regulator, Voltage (VR21) | 1 | Avr | eBay |
| 305-0949 | Regulator Assy, Voltage (VR21) | 1 | Avr | eBay $23.69 |
| 308-0916-01 | Switch, Basin Alarm | 1 | Sensor | eBay |
| 308-0963-02 | Switch, Low Fuel Alarm | 1 | Sensor | eBay |
| 509-0143 | O'Ring, Seal | 1 | Seal | eBay |
| TB1-5 | Charger AC Failure | 1 | Terminal block | Amazon eBay NAPA $30.91 FridayParts $20.80 |
| TB2-1 | FAULT 2 GROUND INPUT FROM SENDER | * | Sensor | Amazon Amazon Amazon eBay eBay eBay NAPA $224.81 FridayParts $57.30 |
| TB2-14 | LOW FUEL WARNING GROUND INPUT FROM SENDER | 1 | Sensor | Amazon eBay |
| TB2-3 | FAULT 1 GROUND INPUT FROM SENDER | 1 | Sensor | Amazon eBay FridayParts $1499.00 |
| TB2-4 | FAULT 1 GROUND OUTPUT TO LIGHT/RELAY* | Grounding terminal | Amazon eBay NAPA $216.88 FridayParts $28.59 | |
| 155-3140 | Kit, Industrial Muffler (Includes Parts Marked) | 1 | Service part / kit | eBay |
| 186-6513 | Valve, Inlet | 2 DNAA / 3 DNAB | Service part / kit | eBay |
| 186-6514 | Valve, Exhaust | 2 DNAA / 3 DNAB | Service part / kit | eBay |
| 186-6612 | Muffler (Spec A) | 1 | Service part / kit | eBay |
| 186-6939 | Cap, Rain (Spec A 1-1/2") | 1 | Service part / kit | eBay |
| 186-7183 | Nipple, Pipe Close (2") | 2 | Service part / kit | eBay |
| 201-3556-02 | Rotor Assy - Standard/Extended Stack | 1 | Service part / kit | eBay |
| 201-3556-03 | Rotor Assy - Extended Stack | 1 | Service part / kit | eBay |
| 220-4524-02 | Stator (Includes Grommet) - Single Phase | 1 | Service part / kit | eBay |
| 220-4525-02 | Stator - Three Phase Extended Stack | 1 | Service part / kit | eBay |
| 220-4525-03 | Stator - Three Phase Extended Stack | 1 | Service part / kit | eBay |
| 300-4959 | Kit, Manual Preheat Control (Spec A) | 1 | Service part / kit | eBay |
| 305-0982 | * Model SX460 | 1 | Service part / kit | Amazon eBay FridayParts $24.40 |
| 510-0173 | Bearing, Ball (Generator Rotor) | 1 | Service part / kit | eBay |
| TB2-10 | PRE-HIGH ENGINE TEMPERATURE WARNING GROUND OUTPUT TO LIGHT/RELAY* | 1 | Service part / kit | Amazon eBay FridayParts $11.35 |
| TB2-11 | PRE-LOW OIL PRESSURE WARNING GROUND OUTPUT TO LIGHT/RELAY* | Service part / kit | Amazon Amazon eBay eBay | |
| TB2-12 | SWITCH OFF WARNING GROUND OUTPUT TO LIGHT/RELAY* | Service part / kit | Amazon Amazon eBay eBay | |
| TB2-13 | LOW ENGINE TEMPERATURE WARNING GROUND OUTPUT TO LIGHT/RELAY* | Service part / kit | Amazon eBay | |
| TB2-15 | LOW FUEL WARNING GROUND OUTPUT TO LIGHT/RELAY* | Service part / kit | Amazon eBay FridayParts $68.99 | |
| TB2-16 | EMERGENCY SHUT DOWN MOMENTARY CONTACT TO GROUND | Service part / kit | Amazon eBay FridayParts $13.71 | |
| TB2-2 | FAULT 2 GROUND OUTPUT TO LIGHT/RELAY* | Service part / kit | Amazon eBay | |
| TB2-5 | REMOTE RESET MOMENTARY CONTACT TO GROUND | Service part / kit | Amazon eBay FridayParts $61.50 | |
| TB2-6 | OVERCRANK FAULT GROUND OUTPUT TO LIGHT/RELAY* | 1 | Service part / kit | Amazon eBay FridayParts $20.44 |
| TB2-7 | OVERSPEED FAULT GROUND OUTPUT TO LIGHT/RELAY* | Service part / kit | Amazon eBay | |
| TB2-8 | HIGH ENGINE TEMPERATURE FAULT GROUND OUTPUT TO LIGHT/RELAY* | 1 | Service part / kit | Amazon eBay NAPA $260.92 FridayParts $249.00 |
| TB2-9 | LOW OIL PRESSURE FAULT GROUND OUTPUT TO LIGHT/RELAY* | 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 — 0932-0112 Onan Post-Sale Literature Index (07-1998) (Cummins/Onan)Parts manual — 967-0200B Onan DNAA DNAB Parts Manual (12-1999) (Onan)Service manual — 967-0600 Onan DN Installation Manual (3-2003) (Onan)Service manual — 967-0602 Cummins DN Installation Manual (12-2002) (Cummins/Onan)
This page was generated from the 4 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.