Delphi MF0159 Mechanical Fuel Pump
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Delphi

Delphi MF0159 Mechanical Fuel Pump

Brand Delphi MF0159
Average Flow Rating 38
Fuel Type Gas
Gasket Or Seal Included Yes
Inlet Outside Diameter 0.313
Inlet Type Hose Bead
Item Grade Standard Replacement
Outlet Fitting Thread Size 1/2-20 UNF
Outlet Quantity 1
Outlet Type Threaded
Package Contents Mechanical Fuel Pump, Gaskets, Instruction Sheet
System Pressure 5 psi
Fits American Motors, Jeep, Buick, Chevrolet, Oldsmobile, and Pontiac · 19 vehicles

Standard replacement. Built as a direct-fit mechanical fuel pump for straightforward service.

Gas fuel compatible. Engineered for gasoline systems with a 5 psi operating pressure.

Gaskets included. Comes with seals and an instruction sheet for easier installation.

Cross-references Airtex Fuel Pumps 41375, 6471489 and AMF0159 for the same application. See all 7.

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Delphi MF0159 Mechanical Fuel Pump

The Delphi MF0159 is a standard replacement mechanical fuel pump for gasoline applications that require a 5 psi system pressure and a 38 average flow rating. Built from Delphi’s OE-focused engineering background, it includes the gasket and seal needed for a direct service replacement on supported Jeep and GM applications.

Key Features

  • Mechanical fuel pump for gas engines
  • 5 psi system pressure
  • 38 average flow rating
  • Hose bead inlet with 0.313 in. outside diameter
  • Threaded outlet with 1/2-20 UNF fitting thread size
  • Gasket or seal included
  • Package contents: mechanical fuel pump, gaskets, instruction sheet
  • Standard replacement grade

Application Details

Delphi MF0159 is built for vehicles equipped with a 2-line fuel pump and is listed for 1980-1983 Jeep CJ5, 1980-1983 Jeep CJ7, and 1981-1983 Jeep Scrambler. It also fits 1980-1981 Buick Skylark, 1980-1981 Chevrolet Citation, 1980-1981 Oldsmobile Omega, and 1980-1981 Pontiac Phoenix. This part cross-references Airtex Fuel Pumps 41375 for the same application.

What This Fuel Pump Helps Address

  • Hard starting caused by weak fuel delivery
  • Fuel starvation under normal engine operation
  • Low fuel pressure in carbureted gasoline systems
  • Driveability issues related to inconsistent mechanical pump output
  • Service replacement needs on supported Jeep and GM models

Installation Notes and Tips

Verify the vehicle uses a 2-line fuel pump before installation. Confirm inlet and outlet style, including the hose bead inlet and threaded 1/2-20 UNF outlet, match the original setup. Clean the mounting surface, replace the gasket during service, and follow the included instruction sheet for proper installation and priming procedures.

Quality Assurance

Delphi draws on more than 100 years of OE experience and a long history supplying major automakers, with aftermarket parts engineered from that OE knowledge base. The MF0159 is a standard replacement fuel pump built for supported applications and consistent service use.

Related reading

This part fits 19 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1983JeepCJ5N/ACompatible with vehicles equipped with a 2-line fuel pump.
1983JeepCJ7N/ACompatible with vehicles equipped with a 2-line fuel pump.
1983JeepScramblerN/ACompatible with vehicles equipped with a 2-line fuel pump.
1982JeepCJ5N/ACompatible with vehicles equipped with a 2-line fuel pump.
1982JeepCJ7N/ACompatible with vehicles equipped with a 2-line fuel pump.
1982JeepScramblerN/ACompatible with vehicles equipped with a 2-line fuel pump.
1981BuickSkylarkN/ACompatible with vehicles equipped with a 2-line fuel pump.
1981ChevroletCitationN/ACompatible with vehicles equipped with a 2-line fuel pump.
1981JeepCJ5N/ACompatible with vehicles equipped with a 2-line fuel pump.
1981JeepCJ7N/ACompatible with vehicles equipped with a 2-line fuel pump.
1981JeepScramblerN/ACompatible with vehicles equipped with a 2-line fuel pump.
1981OldsmobileOmegaN/ACompatible with vehicles equipped with a 2-line fuel pump.
1981PontiacPhoenixN/ACompatible with vehicles equipped with a 2-line fuel pump.
1980BuickSkylarkN/ACompatible with vehicles equipped with a 2-line fuel pump.
1980ChevroletCitationN/ACompatible with vehicles equipped with a 2-line fuel pump.
1980JeepCJ5N/ACompatible with vehicles equipped with a 2-line fuel pump.
1980JeepCJ7N/ACompatible with vehicles equipped with a 2-line fuel pump.
1980OldsmobileOmegaN/ACompatible with vehicles equipped with a 2-line fuel pump.
1980PontiacPhoenixN/ACompatible with vehicles equipped with a 2-line fuel pump.
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Airtex Fuel Pumps — 413756471489AMF0159J8132364M16180M60142SP1165MP