HomeCarter M6622 Mechanical Fuel Pump
Part #: M6622

Carter M6622 Mechanical Fuel Pump

34 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Cadillac, Eldorado, Calais, Commercial Chassis, DeVille, and Fleetwood
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Reliable Mechanical Fuel Pump for Cadillac Models

The Carter M6622 mechanical fuel pump is designed to deliver consistent fuel flow and pressure for select Cadillac vehicles. Engineered for durability and precise fuel delivery, this pump supports models such as the Cadillac DeVille, Eldorado, Fleetwood, and Commercial Chassis.

Key Features of Carter M6622 Mechanical Fuel Pump

  • Inlet outside diameter: 9.5 mm for secure hose connection
  • Includes gasket or seal for leak-free installation
  • Two mounting holes for stable attachment
  • Single inlet (hose type) and single outlet (threaded) ports
  • Outlet fitting thread size: 5/8-18 unf-2b
  • Minimum flow rating of 40 gallons per hour
  • Operating pressure range between 5.5 and 7 psi
  • Mechanical pump type suitable for classic fuel systems
  • Mounting hardware not included

Detailed Description of Carter M6622 Fuel Pump

This Carter M6622 mechanical fuel pump is specifically designed for Cadillac vehicles including the DeVille, Eldorado, Fleetwood, and Commercial Chassis models. The pump features a hose-type inlet with a 9.5 mm outside diameter, ensuring compatibility with standard fuel lines. Its single threaded outlet port (5/8-18 unf-2b) provides a secure connection to the fuel delivery system. With a minimum flow rating of 40 gallons per hour and a pressure range from 5.5 to 7 psi, this pump maintains steady fuel supply under typical operating conditions. The included gasket or seal helps prevent leaks during installation, although mounting hardware is not provided. The two mounting holes allow for a stable and precise fit on compatible Cadillac chassis.

Applications and Common Issues Addressed

  • Restores proper fuel delivery in Cadillac DeVille, Eldorado, Fleetwood, and Commercial Chassis models
  • Resolves fuel starvation or inconsistent engine performance caused by failing mechanical fuel pumps
  • Eliminates fuel leaks with included gasket or seal
  • Addresses low fuel pressure issues within the 5.5 to 7 psi range
  • Supports maintenance and restoration of classic Cadillac fuel systems

Installation Notes and Tips

  • Verify compatibility with your specific Cadillac model and year before installation
  • Use the included gasket or seal to ensure a leak-free connection
  • Secure the pump using the two mounting holes; mounting hardware must be sourced separately
  • Check fuel line connections for proper fit on the 9.5 mm inlet hose and 5/8-18 unf-2b threaded outlet
  • Test fuel pressure after installation to confirm operation within 5.5 to 7 psi range

Quality Assurance and Warranty Information

The Carter M6622 mechanical fuel pump is manufactured to meet industry standards for durability and performance. It undergoes quality control testing to ensure reliable fuel delivery for Cadillac vehicles. This product includes a gasket or seal to support proper installation. Warranty coverage details should be confirmed with the product documentation or manufacturer.

BrandCarter
Part NumberM6622
Gasket Or Seal IncludedYes
Inlet Outside Diameter9.5
Inlet Quantity1
Inlet TypeHose
Maximum Pressure7
Minimum Flow Rating40
Minimum Pressure5.5
Mounting Hardware IncludedNo
Mounting Hole Quantity2
Outlet Fitting Thread Size5/8-18 UNF-2B
Outlet Quantity1
Outlet TypeThreaded
Pump TypeMechanical

This part fits 34 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1978CadillacEldorado7.0LV8N/Awith 3 Line Pump
1977CadillacEldorado7.0LV8N/Awith 3 Line Pump
1976CadillacCommercial Chassis8.2LV8N/Awith 3 Line Pump
1976CadillacDeVille8.2LV8N/Awith 3 Line Pump
1976CadillacEldorado8.2LV8N/Awith 3 Line Pump
1976CadillacFleetwood8.2LV8N/Awith 3 Line Pump
1975CadillacCommercial Chassis8.2LV8N/Awith 3 Line Pump
1975CadillacDeVille8.2LV8N/Awith 3 Line Pump
1975CadillacEldorado8.2LV8N/Awith 3 Line Pump
1975CadillacFleetwood8.2LV8N/Awith 3 Line Pump
1974CadillacCommercial Chassis7.7LV8N/Awith 3 Line Pump; with Air Conditioning
1974CadillacDeVille7.7LV8N/Awith 3 Line Pump; with Air Conditioning
1974CadillacEldorado8.2LV8N/Awith 3 Line Pump; with Air Conditioning
1974CadillacFleetwood7.7LV8N/Awith 3 Line Pump
1973CadillacCommercial Chassis7.7LV8N/Awith 3 Line Pump; with Air Conditioning
1973CadillacDeVille7.7LV8N/Awith 3 Line Pump; with Air Conditioning
1973CadillacEldorado8.2LV8N/Awith 3 Line Pump; with Air Conditioning
1973CadillacFleetwood7.7LV8N/Awith 3 Line Pump
1972CadillacCommercial Chassis7.7LV8N/Awith 3 Line Pump; with Air Conditioning
1972CadillacDeVille7.7LV8N/Awith 3 Line Pump; with Air Conditioning
1972CadillacEldorado8.2LV8N/Awith 3 Line Pump; with Air Conditioning
1972CadillacFleetwood7.7LV8N/Awith 3 Line Pump
1971CadillacCommercial Chassis7.7LV8N/Awith 3 Line Pump; with Air Conditioning
1971CadillacDeVille7.7LV8N/Awith 3 Line Pump; with Air Conditioning
1971CadillacEldorado8.2LV8N/Awith 3 Line Pump; with Air Conditioning
1971CadillacFleetwood7.7LV8N/Awith 3 Line Pump
1970CadillacCommercial Chassis7.7LV8N/Awith 3 Line Pump; with Air Conditioning
1970CadillacDeVille7.7LV8N/Awith 3 Line Pump; with Air Conditioning
1970CadillacEldorado8.2LV8N/Awith 3 Line Pump; with Air Conditioning
1970CadillacFleetwood7.7LV8N/Awith 3 Line Pump
1969CadillacCommercial Chassis7.7LV8N/Awith 3 Line Pump; with Air Conditioning
1969CadillacDeVille7.7LV8N/Awith 3 Line Pump; with Air Conditioning
1969CadillacEldorado7.7LV8N/Awith 3 Line Pump; with Air Conditioning
1969CadillacFleetwood7.7LV8N/Awith 3 Line Pump

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

2960355354264640966602-11076417494644068764409666470781B0185PD11132014TGM20006MF0184SP1066MP

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.