Fuel Pump for Onan P216G P218G P220G P224G B43/B48 Engines – 149-2501-01
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| Application | Models / Details |
|---|---|
| Onan Performer engines | P216G, P218G, P220G, P224G |
| Onan B-series | B43, B43E, B43G, B48, B48G and compatible variants when the pump configuration matches |
Product Overview
Onan carbureted engines use this pump to move fuel from the tank to the carburetor using crankcase pulse/vacuum. A worn diaphragm or check valves can cause long cranking, fuel starvation at load, intermittent stalling, or an empty carburetor after the machine sits.
Application information for 149-2501-01 describes the later square-style pump and notes that it can replace older rectangular configurations in supported installations. The pulse-port location and fuel-hose routing should still be matched carefully.
Key Features & Performance
- Pulse/vacuum-operated fuel pump for carbureted Onan opposed-twin engines
- Reference 149-2501-01 in matched Onan application data
- Supports P216G, P218G, P220G, P224G and selected B43/B48 variants
- Later square-style service configuration is commonly listed as a replacement for older pump designs on applicable engines
Specifications & Reference Numbers
- Reference: 149-2501-01
- Pump type: Pulse / vacuum diaphragm fuel pump
- Fuel system: Carbureted gasoline engine
Before You Order
Check the pulse hose for cracks and verify the pump’s pulse-port orientation before installation. Incorrect hose routing or a weak crankcase pulse can prevent fuel delivery even with a new pump.
Frequently Asked Questions
Q: Is this pump electric?
A: No. This type is operated by engine crankcase pulse/vacuum.
Q: What if fuel still does not reach the carburetor?
A: Inspect the tank pickup, filter, fuel hoses, pulse line and carburetor inlet in addition to the pump.