Service parts for the P2500I
Grouped by system, with how many of each the parts manual calls for.
Oil system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | gasoline |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 2200 kW |
| Emissions | EPA |
| Oil capacity | 0.35 L |
| Voltage options | 120 V |
| Phase | Single |
| Rated current | 20.8 A |
| Circuit breaker | 20 A |
| Dimensions (L×W×H) | 501×266×462 mm |
| Dry weight | 21 kg |
| Sound level | 52.0 dBA |
| Fuel tank | 3.8 L |
| Tank runtime | 10 hr |
Maintenance & consumables
for the Cummins/Onan E6RTC| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Check, Clean* | — | 50 hr | ||
| Fuel filter | Check/Clean, Replace | — | |||
| Oil filter | — | 1000 hr | |||
| Battery | — | ||||
| Belt | — | ||||
| Coolant | Check/Clean | — | |||
| Oil | SAE 10W30 | 0.37 qt | A058U948 | Amazon eBay | |
| Spark plug | Check/Clean, Replace | — | 300 hr |
Service intervals
5| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Engine Oil | Change | 50 hr | 6 mo | First service — First 20 hours or first month |
| Air Filter | Clean | 50 hr | 6 mo | |
| Spark Plug | Check | 100 hr | 6 mo | |
| Air Filter | Replace | 300 hr | 12 mo | |
| Spark Plug | Replace | 300 hr | 12 mo |
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 |
|---|---|---|---|---|---|
| Engine oil | 10W30 | 0.35 L | 4-stroke engine oil only, never use 2-stroke oil. Synthetic oil is acceptable substitute. |
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 size generator is the Cummins/Onan P2500I?
The Cummins/Onan P2500I is rated 2200 kW standby.
What engine is in the Cummins/Onan P2500I?
The Cummins/Onan P2500I is powered by the Cummins/Onan E6RTC engine.
Is the Cummins/Onan P2500I diesel or gas?
The Cummins/Onan P2500I runs on gasoline.
How much oil does the Cummins/Onan P2500I take?
The Cummins/Onan P2500I has an engine oil capacity of 0.35 liters (0.4 US quarts), per the manufacturer specification sheet.
What is the sound level of the Cummins/Onan P2500I?
The Cummins/Onan P2500I is rated at 52.0 dBA, per the manufacturer specification sheet.
What is the dry weight of the Cummins/Onan P2500I?
The Cummins/Onan P2500I has a dry weight of 21 kg (47 lb).
How big is the fuel tank on the Cummins/Onan P2500I?
The Cummins/Onan P2500I has a 3.8 liter (1 US gallon) fuel tank, giving about 10 hours of runtime.
What voltages is the Cummins/Onan P2500I available in?
The Cummins/Onan P2500I is offered in 120 V, Single-phase.
Parts
8| Part # | Description | Qty | System | |
|---|---|---|---|---|
| A058U946 | P2500i Maintenance Kit | Maintenance kit | Amazon eBay $35.99 | |
| A058U947 | Small Generator Storage Cover | Storage cover | Amazon eBay $63.91 | |
| A058U948 | Spark Plug E6RTC | 1 | Spark plug | Amazon eBay |
| A058U954 | P2500i Air Filter Element | 1 | Air filter element | Amazon eBay |
| A058U969 | 30A 120/240V Transfer Switch Cord | Cord | Amazon eBay | |
| A058V023 | P2500i Carburetor Kit (built pre- Sept. 2020) | Carburetor kit | Amazon eBay | |
| RL12Y | Spark plug | Spark plug | Amazon eBay | |
| A058U945 | 30A 120V Paralleling Kit | Service part / kit | Amazon eBay $52.99 |
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.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| 50% | 2.27 | 0.6 | |
| 100% | 3.41 | 0.9 |
Available documents
This page was generated from the 10 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.