Onan Cummins Generator 12V Electric Fuel Pump 149-2646 A047N911
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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.
- Onan generator sets specifying 149-2646
- Onan generator sets specifying 149-2646-01
- Cummins Onan generator sets specifying A047N911
- Additional gensets only when pressure, ports, connector, and mounting match
Product Overview
A generator that starts from priming fuel but dies as the bowl empties—or stalls when electrical load increases—may have inadequate pump flow. Confirm the tank vent, pickup, filter, hoses, voltage, and carburetor before replacing the pump.
Generator fuel pumps are selected by pressure, flow, port layout, connector, and mounting, not just voltage. Too much pressure can overwhelm a carburetor needle while too little fuel starves the engine under load.
Key Features & Performance
- 12V electric fuel delivery
- Three Onan/Cummins reference numbers
- Supports consistent fuel supply under generator load
- Direct service format for compatible gensets
- New aftermarket pump
Replaces Part Numbers
- 149-2646
- 149-2646-01
- A047N911
Common Uses
- Repairing a generator that runs only on priming fuel
- Replacing a pump that is electrically open or produces low flow
- Correcting fuel starvation after restrictions and power supply are ruled out
Technical Specifications
- Product Type: Electric Generator Fuel Pump
- Primary Application: Onan / Cummins generators specifying 149-2646
- Package Quantity: 1 pump
- Condition: New
- Replacement Type: Aftermarket
- Voltage: 12V DC
- References: 149-2646; 149-2646-01; A047N911
- System: Generator fuel supply
- Fuel Type: Confirm gasoline application
- Condition: New aftermarket
Installation & Fitment
- Disable automatic start and work away from ignition sources
- Mark inlet, outlet, electrical polarity, and mounting orientation
- Replace clogged filters and cracked hose
- Check pressure, flow, leaks, and operation under electrical load
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Model, production date, serial number, connector, dimensions, installed options, and previous repairs can affect fitment. Compare the original component and reference information before purchase.
Frequently Asked Questions
Q: Why does the generator fail only under heavy load? A: Fuel demand rises with load, so a weak pump or restricted line may keep up at idle but not at rated output.
Q: Can a stronger automotive pump be substituted? A: Not safely without matching pressure; excess pressure can flood the carburetor and create a fire hazard.
Q: How do I confirm this is the correct part? A: Match all reference numbers, fuel type, rated pressure and flow, inlet/outlet size, polarity, connector, and generator model/spec code.
Q: Is this supplied by the original equipment manufacturer? A: No. This is a new aftermarket item. Brand, model, and part numbers are used only to identify compatible applications.
Part Summary
keywords: Onan 149-2646 fuel pump, A047N911 generator pump, 149-2646-01 replacement, Cummins Onan fuel starvation, 12V genset fuel pump
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.