Carter M4553 Mechanical Fuel Pump
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Carter

Carter M4553 Mechanical Fuel Pump

Brand Carter M4553
Gasket Or Seal Included Yes
Inlet Type Tube
Maximum Pressure 7
Minimum Flow Rating 35
Minimum Pressure 5.5
Mounting Hardware Included No
Outlet Fitting Thread Size 1/8-27 NPSF
Outlet Quantity 1
Outlet Type Threaded
Pump Type Mechanical
Fits Buick · 22 vehicles

OE fit, form, and function. A direct mechanical fuel pump replacement.

Gasket or seal included. Helps simplify installation and sealing.

Threaded outlet. Provides a secure fuel connection.

Cross-references Airtex Fuel Pumps 40371, 602-1077 and 3542629 for the same application. See all 9.

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Carter M4553 Mechanical Fuel Pump

The Carter M4553 is a mechanical fuel pump built for OE-style fit, form, and function on select classic Buick applications. It is a direct replacement choice for vehicles that use a 2-line pump layout, with a threaded outlet and tube inlet for the specified fuel system configuration.

Key Features

  • Mechanical fuel pump design for carbureted fuel delivery systems
  • Threaded outlet with 1/8-27 NPSF outlet fitting thread size
  • Tube inlet type for the listed application
  • Gasket or seal included for installation preparation
  • Minimum flow rating of 35
  • Operating pressure range of 5.5 to 7 psi
  • OE fit, form, and function focus from Carter Fuel Systems

Application Details

Fits 1963-1966 Buick Riviera, N/A; Fits 1965 Buick Skylark, N/A; Fits 1959-1964 Buick LeSabre, N/A; Fits 1957-1958 Buick Century, N/A; Fits 1957-1958 Buick Roadmaster, N/A. This Carter M4553 fuel pump is listed for vehicles equipped with a 2 Line Pump, making it a targeted replacement for classic Buick fuel delivery service. This part cross-references Airtex Fuel Pumps 40371 for the same application.

What This Fuel Pump Helps Address

  • Hard starting caused by weak mechanical fuel delivery
  • Fuel starvation from a worn or failing pump diaphragm
  • Low fuel pressure in carbureted Buick applications
  • Intermittent stalling related to inconsistent fuel supply
  • Fuel system service needs on 2-line pump configurations

Installation Notes and Tips

Confirm the vehicle uses a 2 Line Pump before ordering. Verify inlet and outlet style, outlet thread size, and pressure requirements against the original pump before installation. The gasket or seal is included; mounting hardware is not included. Because this is a mechanical fuel pump, proper alignment and clean sealing surfaces are important for reliable operation.

Quality Assurance

Carter Fuel Systems emphasizes OE fit, form, and function along with broad vehicle coverage and problem-solving design features. The M4553 is built to meet the needs of the listed Buick Riviera, Skylark, LeSabre, Century, and Roadmaster applications.

Related reading

This part fits 22 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1966BuickRiviera7.0LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1965BuickRiviera6.6LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1965BuickRiviera7.0LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1965BuickSkylark6.6LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1964BuickLeSabre6.6LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1964BuickLeSabre7.0LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1964BuickRiviera6.6LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1964BuickRiviera7.0LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1963BuickLeSabre6.6LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1963BuickRiviera6.6LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1963BuickRiviera7.0LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1962BuickLeSabre6.6LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1961BuickLeSabre6.0LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1961BuickLeSabre6.6LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1960BuickLeSabre6.0LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1960BuickLeSabre6.6LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1959BuickLeSabre6.0LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1959BuickLeSabre6.6LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1958BuickCentury6.0LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1958BuickRoadmaster6.0LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1957BuickCentury6.0LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
1957BuickRoadmaster6.0LV8N/ACompatible with vehicles equipped with a 2 Line Pump.
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Airtex Fuel Pumps — 40371602-1077354262964156316440371A11132016TGB0151PM23040SP1075MP