Specifications
| Fuel | Diesel (ASTM No. 2) |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 150 kW |
| Oil capacity | 19.0 L |
| Alternator | Stamford/AvK UC274G |
| Battery cranking | 900 CCA |
| Battery voltage | 24 V |
| Battery quantity | 2 |
| Coolant capacity | 26 L |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | ||||
| Fuel filter | — | ||||
| Oil filter | — | ||||
| Battery | — | ||||
| Belt | — | ||||
| Coolant | — | ||||
| Oil | — | ||||
| Spark plug | — |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Service specifications
5| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Pressure | Engine oil pressure | 25 to 45 | psi | engine at operating temperature |
| Pressure | Maximum allowable exhaust back pressure | 41 | inches H2O | |
| Temperature | Engine coolant temperature (heat exchanger, adjust raw water flow) | 165 to 195 | °F | viewing water temperature gauge |
| Temperature | Engine water temperature | 165 to 195 | °F | depending on load and ambient temperature |
| Voltage | DC voltmeter reading | 24 to 28 | volts | set running |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Fuel | ASTM No. 2 Diesel | ASTM No. 2 | Cummins engines on DG series sets normally use ASTM No. 2 Diesel; will operate on alternate diesel fuels within engine manual specifications. Never use galvanized or copper fuel lines, fittings or tanks. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
1Vibration Isolators Installation and Adjustment Procedure installation
- Place the vibration isolators on the genset support structure.
- Shim or grout isolators so all bases are within 0.25 inch (6 mm) elevation of each other on a flat surface.
- Loosen the side snubber lock nuts so the top plate is free to move vertically and horizontally.
- Place the genset onto the isolators, aligning the skid mounting with the threaded isolator hole.
- Adjust isolators with the leveling bolt through the skid (locking nut threaded up toward bolt head) to level the set.
- Set nominal clearance between top plate and isolator base of 0.25 inch (6 mm) or greater.
- Adjust leveling bolts until set is level and sufficient clearance remains, then lock with the lock nut.
- Snubber nuts may remain loose to provide better isolation between genset and support structure.
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What is the power rating of the Cummins/Onan 150 DGFA?
The Cummins/Onan 150 DGFA is rated 150 kW standby.
What engine is in the Cummins/Onan 150 DGFA?
The Cummins/Onan 150 DGFA is powered by the Cummins/Onan 6CTA8.3G engine.
What fuel type does the Cummins/Onan 150 DGFA take?
The Cummins/Onan 150 DGFA runs on Diesel (ASTM No. 2).
What's the oil capacity on a Cummins/Onan 150 DGFA?
The Cummins/Onan 6CTA8.3G engine in the Cummins/Onan 150 DGFA has an oil capacity of 19.0 liters.
How much coolant does the Cummins/Onan 150 DGFA hold?
The Cummins/Onan 150 DGFA cooling system holds 26 liters (6.9 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What battery does the Cummins/Onan 150 DGFA use?
The Cummins/Onan 150 DGFA uses 2 batteryies, 24 V each, 900 CCA, per the manufacturer specification sheet.
Which alternator is fitted to the Cummins/Onan 150 DGFA?
The Cummins/Onan 150 DGFA uses a Stamford/AvK UC274G alternator.
Troubleshooting
1Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Engine fails to start or starts, runs and then stops | Refer to Troubleshooting charts in the Operator’s Manual |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
30| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 102-1147 | Gasket, Drain-Oil Pan | 1 | Gasket | Amazon eBay |
| 122-0756 | Element - Oil Filter | 1 | Oil filter | Amazon eBay $12.00 |
| 130-3536 | Filter, Water - Service | 1 | Coolant filter | Amazon eBay $18.99 |
| 130-3539 | Filter, Water - Pre-Charging | 1 | Coolant filter | Amazon eBay $19.50 |
| 140-2241 | Element, Air Cleaner | 1 | Air filter | Amazon eBay $299.95 NAPA $87.00 |
| 140-2252 | Element, Air Cleaner - Secondary (Inner) | 1 | Air filter | Amazon eBay $42.48 |
| 149-2250 | Filter, Fuel - Primary | 1 | Fuel filter | Amazon eBay $85.00 |
| 149-2251 | Filter, Fuel - Secondary | 1 | Fuel filter | Amazon eBay $19.95 |
| 150-0956 | Switch Assembly, Overspeed | 1 | Sensor | Amazon eBay |
| 150-2201 | Sensor, Speed – Magnetic | 1 | Sensor | Amazon eBay $249.10 |
| 193-0244 | Sender, Oil Pressure (E1) | 1 | Sensor | Amazon eBay |
| 193-0322 | Sender, Level - Water | 1 | Sensor | Amazon eBay |
| 193-0353 | Sender, Temperature - Oil | 1 | Sensor | Amazon eBay |
| 193-0375 | Sender, Coolant | 1 | Sensor | Amazon eBay |
| 309-0128 | Thermostat - Adjustable | 1 | Thermostat | Amazon eBay |
| 309-0269 | Sender, Temperature-Lo Engine | 1 | Sensor | Amazon eBay $239.00 |
| 309-0272 | Regulator, Voltage - 24 VDC (Used on 35 A MP Alternator) | 1 | Alternator | Amazon eBay |
| 309-0555 | Switch, Thermostatic | 1 | Sensor | Amazon eBay |
| 309-0561 | Alternator & Drive Components Group Pulley. Alternator - Multi Groove (Use with 35 A MP Alternator) | 1 | Alternator | Amazon eBay |
| 3911560 | Belt, Drive - Alternator | 1 | Belt | Amazon eBay FridayParts $43.37 |
| 3911571 | Belt, Drive - Fan & Altr (6CTA Engine) | 1 | Belt | Amazon eBay $74.95 FridayParts $49.99 |
| 501-0441 | Line, Fuel - Flex (Fuel In) | 1 | Hose | Amazon eBay |
| 503-1195 | Hose (3/4"ID x 24"LG) | 1 | Hose | Amazon eBay |
| 503-1379-01 | Hose, Radiator | 2 | Hose | Amazon eBay |
| 503-1595 | Hose | 1 | Hose | Amazon eBay |
| 503-1599 | Hose, Radiator | 1 | Hose | Amazon eBay |
| 509-0266-02 | Ring, O | 1 | Seal | Amazon eBay |
| 309-0553 | Switch, Temperature-Pre Water | 1 | Service part / kit | Amazon eBay $127.46 |
| 309-0554 | SWITCH WATER | 1 | Service part / kit | Amazon eBay $159.00 |
| 501-0480 | Line, Fuel - Flex (Fuel Out) | 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
This page was generated from the 3 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.