Delphi MF0025 Mechanical Fuel Pump

Name: Delphi MF0025 Mechanical Fuel Pump
Brand: Delphi
SKU: BBMX-MF0025
Price: 30.55 USD
Availability: OutOfStock

⚙️ 149 vehicles fit this part

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🚗Fitment: Buick, Chevrolet, Pontiac, GMC, Oldsmobile, and Cadillac, LeSabre, Regal, Caprice, Impala, Monte Carlo, Bonneville, Parisienne, Electra, El Camino, Caballero, Cutlass Calais, Cutlass Supreme, Delta 88, Grand Prix, Malibu, 98, Cutlass Cruiser, Grand LeMans, DeVille, Fleetwood, Seville, Century, Camaro, Cutlass, Catalina, Firebird, LeMans, Cutlass Salon, Skylark, Omega, Grand Am, Phoenix, and Ventura

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Delphi Mechanical Fuel Pump Overview

The Delphi MF0025 mechanical fuel pump is designed for reliable fuel delivery in classic GM vehicles. Engineered to meet standard replacement specifications, this pump supports gas fuel systems with a consistent flow rating suitable for various Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models.

Inlet outside diameter: 0.375 inches
Fuel type: Gasoline
Includes gasket and seal for secure installation
Hose bead inlet and threaded outlet design
Single outlet with 5/8-18 UNF thread size
Average flow rating of 25 gallons per hour
System pressure rating of 5 psi
Standard replacement grade for dependable performance
Package includes mechanical fuel pump, gaskets, and instruction sheet

Technical Details and Compatibility

The Delphi MF0025 mechanical fuel pump features a 0.375-inch inlet outside diameter with a hose bead inlet type, ensuring a secure connection to fuel lines. The threaded outlet, sized at 5/8-18 UNF, provides a reliable fuel delivery path with a single outlet configuration. Designed for gasoline fuel systems, this pump maintains an average flow rating of 25 gallons per hour and operates at a system pressure of 5 psi, making it suitable for a range of classic GM vehicles.

This pump is compatible with multiple Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models, including but not limited to the Buick Century, LeSabre, and Skylark; Cadillac DeVille and Seville; Chevrolet Camaro, Caprice, and Impala; Oldsmobile Cutlass series and Delta 88; and Pontiac Firebird, Grand Prix, and Bonneville. The part number MF0025 ensures precise fitment for these applications.

Applications and Problem Resolution

Replaces worn or leaking mechanical fuel pumps in classic GM vehicles
Restores proper fuel pressure and flow for improved engine performance
Eliminates fuel delivery interruptions caused by faulty pump components
Addresses fuel line connection issues with included gasket and seal
Supports restoration projects requiring OEM-style fuel pump replacements

Installation Notes and Tips

Installation of the Delphi MF0025 mechanical fuel pump requires attention to the inlet and outlet connections. Ensure the hose bead inlet is securely attached to the fuel line and the threaded outlet is tightened to the specified torque to prevent leaks. The included gasket and seal should be properly seated to maintain system integrity. Refer to the instruction sheet for detailed installation procedures and torque specifications.

Quality Assurance and Warranty

Delphi mechanical fuel pumps are manufactured to meet standard replacement quality standards, providing reliable operation for classic GM vehicles. The MF0025 part includes a gasket and seal to support a proper installation. While specific warranty details are not provided, Delphi products typically adhere to industry quality controls to ensure durability and performance.

Brand	Delphi
Part Number	MF0025
Average Flow Rating	25
Fuel Type	Gas
Gasket Or Seal Included	Yes
Inlet Outside Diameter	0.375
Inlet Type	Hose Bead
Item Grade	Standard Replacement
Outlet Fitting Thread Size	5/8-18 UNF
Outlet Quantity	1
Outlet Type	Threaded
Package Contents	Mechanical Fuel Pump, Gaskets, Instruction Sheet
System Pressure	5 psi

This part fits 149 vehicles. Search below:

Year	Make	Model	Position	Notes
1985	Buick	LeSabre	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1985	Buick	Regal	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1985	Chevrolet	Caprice	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1985	Chevrolet	Impala	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1985	Chevrolet	Monte Carlo	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1985	Pontiac	Bonneville	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1985	Pontiac	Parisienne	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1984	Buick	LeSabre	N/A	with 2 Line Pump; 1st Design
1984	Buick	LeSabre	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1984	Buick	Regal	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1984	Chevrolet	Caprice	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1984	Chevrolet	El Camino	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1984	Chevrolet	Impala	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1984	Chevrolet	Monte Carlo	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1984	Oldsmobile	Cutlass Calais	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1984	Oldsmobile	Cutlass Supreme	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1984	Oldsmobile	Delta 88	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1984	Pontiac	Bonneville	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1984	Pontiac	Grand Prix	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1984	Pontiac	Parisienne	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Buick	LeSabre	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Buick	Regal	N/A	with 2 Line Pump; with I.D. # 41209
1983	Buick	Regal	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Chevrolet	Caprice	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Chevrolet	El Camino	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Chevrolet	Impala	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Chevrolet	Malibu	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Chevrolet	Monte Carlo	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Oldsmobile	98	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Oldsmobile	Cutlass Calais	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Oldsmobile	Cutlass Cruiser	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Oldsmobile	Cutlass Supreme	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Oldsmobile	Delta 88	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Pontiac	Bonneville	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Pontiac	Grand LeMans	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Pontiac	Grand Prix	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1983	Pontiac	Parisienne	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Buick	LeSabre	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Buick	Regal	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Cadillac	DeVille	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Cadillac	Fleetwood	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Cadillac	Seville	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Chevrolet	Caprice	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Chevrolet	El Camino	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Chevrolet	Impala	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Chevrolet	Malibu	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Chevrolet	Monte Carlo	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Oldsmobile	98	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Oldsmobile	Cutlass Calais	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Oldsmobile	Cutlass Cruiser	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Oldsmobile	Cutlass Supreme	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Oldsmobile	Delta 88	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Pontiac	Bonneville	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Pontiac	Grand LeMans	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1982	Pontiac	Grand Prix	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Buick	Century	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Buick	LeSabre	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Buick	Regal	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Chevrolet	Camaro	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Chevrolet	Caprice	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Chevrolet	El Camino	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Chevrolet	Impala	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Chevrolet	Malibu	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Chevrolet	Monte Carlo	N/A	with 2 Line Pump; with I.D. # 41209
1981	Oldsmobile	98	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Oldsmobile	Cutlass	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Oldsmobile	Cutlass Calais	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Oldsmobile	Cutlass Cruiser	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Oldsmobile	Cutlass Supreme	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Oldsmobile	Delta 88	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Pontiac	Bonneville	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Pontiac	Catalina	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Pontiac	Firebird	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Pontiac	Grand LeMans	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Pontiac	Grand Prix	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1981	Pontiac	LeMans	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Buick	Century	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Buick	LeSabre	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Buick	Regal	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Cadillac	DeVille	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Cadillac	Fleetwood	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Chevrolet	Camaro	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Chevrolet	Caprice	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Chevrolet	El Camino	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Chevrolet	Impala	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Chevrolet	Malibu	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Oldsmobile	Cutlass	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Oldsmobile	Cutlass Calais	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Oldsmobile	Cutlass Salon	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Oldsmobile	Cutlass Supreme	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Oldsmobile	Delta 88	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Pontiac	Bonneville	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Pontiac	Catalina	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Pontiac	Firebird	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Pontiac	Grand LeMans	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Pontiac	Grand Prix	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1980	Pontiac	LeMans	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Buick	Century	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Buick	LeSabre	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Buick	Regal	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Buick	Skylark	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Chevrolet	El Camino	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Chevrolet	Malibu	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Chevrolet	Monte Carlo	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Oldsmobile	Cutlass	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Oldsmobile	Cutlass Calais	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Oldsmobile	Cutlass Salon	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Oldsmobile	Cutlass Supreme	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Oldsmobile	Delta 88	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Oldsmobile	Omega	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Pontiac	Catalina	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Pontiac	Firebird	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Pontiac	Grand Am	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Pontiac	Grand LeMans	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Pontiac	Grand Prix	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Pontiac	LeMans	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1979	Pontiac	Phoenix	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Buick	Century	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Buick	LeSabre	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Buick	Regal	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Buick	Skylark	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Chevrolet	El Camino	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Chevrolet	Malibu	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Chevrolet	Monte Carlo	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Oldsmobile	Cutlass	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Oldsmobile	Cutlass Calais	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Oldsmobile	Cutlass Salon	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Oldsmobile	Cutlass Supreme	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Oldsmobile	Delta 88	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Oldsmobile	Omega	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Pontiac	Catalina	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Pontiac	Firebird	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Pontiac	Grand LeMans	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Pontiac	Grand Prix	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Pontiac	LeMans	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1978	Pontiac	Phoenix	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1977	Buick	Century	N/A	with 2 Line Pump; Late
1977	Buick	LeSabre	N/A	with 2 Line Pump; Late
1977	Buick	Regal	N/A	with 2 Line Pump; Late
1977	Buick	Skylark	N/A	with 2 Line Pump; Late
1977	Oldsmobile	Cutlass	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1977	Oldsmobile	Cutlass Supreme	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1977	Oldsmobile	Delta 88	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1977	Oldsmobile	Omega	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1977	Pontiac	Catalina	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1977	Pontiac	Firebird	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1977	Pontiac	Grand LeMans	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1977	Pontiac	LeMans	N/A	Compatible with vehicles equipped with a 2-line fuel pump.
1977	Pontiac	Phoenix	N/A	Compatible with vehicles equipped with a 2-line fuel 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:

412096441209647117268523AMF0025M6951SP1028MP

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