US Motor Works

US Motor Works USMP01878 Mechanical Fuel Pump

Brand US Motor Works USMP01878
Fits Chevrolet · 2 vehicles

Mechanical fuel pump. Delivers reliable fuel flow for carbureted systems.

Includes 2 gaskets. Helps simplify installation with the needed seals.

Cross-references Airtex Fuel Pumps 429, Delphi MF0085 and Spectra Premium SP1065MP for the same application. See all 3.

$45.87Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.

Mechanical Fuel Pump for 1950-1951 Chevrolet Bel Air

US Motor Works USMP01878 is a mechanical fuel pump for select 1950-1951 Chevrolet Bel Air applications. It is built for direct fuel delivery service on the listed vehicle fitment and includes 2 gaskets for the installation process.

Key Features

  • Mechanical fuel pump for air and fuel delivery service
  • Includes 2 gaskets
  • Fits 1950-1951 Chevrolet Bel Air
  • Cross-references Airtex Fuel Pumps 429 and Delphi MF0085 for the same application
  • US Motor Works part number USMP01878

Product Details

This US Motor Works mechanical fuel pump is specified for 1950-1951 Chevrolet Bel Air models and is identified by part number USMP01878. As a mechanical-style pump, it serves the engine’s fuel delivery system by supplying fuel through the vehicle’s original mechanical pump setup. The included gaskets support a proper seal at the mounting surface during replacement service.

For buyers searching for a 1950 Chevrolet Bel Air fuel pump, 1951 Chevrolet Bel Air mechanical fuel pump, or USMP01878 replacement fuel pump, this listing matches the confirmed application data provided. It also cross-references Airtex Fuel Pumps 429 and Delphi MF0085 for the same application.

Common Replacement Reasons

  • Hard starting caused by weak fuel delivery
  • Fuel starvation during acceleration or cruising
  • Engine stalling from inconsistent pump output
  • Fuel leaks at the pump mounting area
  • Restoration or maintenance of the original fuel system on a Chevrolet Bel Air

Installation Notes

Verify engine and mounting configuration against the vehicle before installation. Clean the mounting surface thoroughly and use the included gaskets to help achieve a proper seal. Prime the fuel system after installation and inspect for leaks before returning the vehicle to service.

Quality Assurance

US Motor Works identifies this component as a mechanical fuel pump for the listed Chevrolet Bel Air fitment. Confirm part number USMP01878 against the existing pump and vehicle application before ordering.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1951ChevroletBel Air3.8LL6N/A
1950ChevroletBel Air3.8LL6N/A
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Airtex Fuel Pumps — 429Delphi — MF0085Spectra Premium — SP1065MP