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Delphi MF0055 Mechanical Fuel Pump
Reliable Mechanical Fuel Pump for Chevrolet Vehicles
The Delphi MF0055 mechanical fuel pump is designed to deliver consistent fuel flow for a range of Chevrolet models. Engineered for gasoline systems, this pump ensures steady fuel delivery with an average flow rating of 65 gallons per hour at 8 psi system pressure.
- Compatible with Chevrolet Bel Air, Blazer, C10, Caprice, El Camino, G10, G20, G30, Impala, K5 Blazer, K10, K20, Monte Carlo
- Inlet outside diameter: 0.375 inches with hose bead inlet type
- Two threaded outlets with 5/8-18 UNF fitting thread size
- Includes gasket and seal for proper installation
- Standard replacement grade mechanical fuel pump
- Package includes mechanical fuel pump, gaskets, and instruction sheet
Product Details and Specifications
The Delphi MF0055 mechanical fuel pump is designed specifically for gasoline fuel systems, providing reliable fuel delivery at a system pressure of 8 psi. The pump features a hose bead inlet with a 0.375-inch outside diameter, allowing secure connection to fuel lines. It has two threaded outlets sized at 5/8-18 UNF, supporting dual fuel line configurations. This standard replacement grade pump is supplied with necessary gaskets and seals to ensure a proper fit and leak-free operation. The average flow rating of 65 gallons per hour supports efficient fuel delivery for various Chevrolet models including the Bel Air, Blazer, C10 series, Caprice, El Camino, and others.
Applications and Common Issues Addressed
- Restores fuel delivery in Chevrolet Bel Air and Blazer models experiencing fuel starvation
- Replaces worn or leaking mechanical fuel pumps in Chevrolet C10 and K-series trucks
- Solves low fuel pressure problems in Chevrolet Caprice and Monte Carlo vehicles
- Addresses fuel pump failure symptoms such as engine stalling or hesitation
- Ensures consistent fuel flow for Chevrolet Impala and El Camino performance
Installation Notes and Tips
When installing the Delphi MF0055 mechanical fuel pump, ensure the gasket and seal included in the package are properly seated to prevent leaks. Verify the hose bead inlet and threaded outlet connections are secure and compatible with your vehicle’s fuel lines. Follow the instruction sheet carefully for torque specifications and mounting procedures. It is recommended to inspect fuel lines and replace any damaged components during installation to maintain system integrity.
Quality Assurance and Warranty
Delphi mechanical fuel pumps meet industry standards for replacement parts and are manufactured to provide reliable performance. The MF0055 part number is backed by Delphi’s quality control processes to ensure durability and fitment accuracy. This product includes a standard warranty covering defects in materials and workmanship, providing confidence in your purchase for Chevrolet fuel system repairs.
| Brand | Delphi |
| Part Number | MF0055 |
| Average Flow Rating | 65 |
| 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 | 2 |
| Outlet Type | Threaded |
| Package Contents | Mechanical Fuel Pump, Gaskets, Instruction Sheet |
| System Pressure | 8 psi |
This part fits 88 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1995 | Chevrolet | G20 | N/A | Fits vehicles with a 3 Line Pump. |
| 1994 | Chevrolet | G20 | N/A | Fits vehicles with a 3 Line Pump. |
| 1993 | Chevrolet | G10 | N/A | Fits vehicles with a 3 Line Pump. |
| 1993 | Chevrolet | G20 | N/A | Fits vehicles with a 3 Line Pump. |
| 1992 | Chevrolet | G10 | N/A | Fits vehicles with a 3 Line Pump. |
| 1992 | Chevrolet | G20 | N/A | Fits vehicles with a 3 Line Pump. |
| 1991 | Chevrolet | G10 | N/A | Fits vehicles with a 3 Line Pump. |
| 1991 | Chevrolet | G20 | N/A | Fits vehicles with a 3 Line Pump. |
| 1990 | Chevrolet | G10 | N/A | Fits vehicles with a 3 Line Pump. |
| 1990 | Chevrolet | G20 | N/A | Fits vehicles with a 3 Line Pump. |
| 1989 | Chevrolet | G10 | N/A | Fits vehicles with a 3 Line Pump. |
| 1989 | Chevrolet | G20 | N/A | Fits vehicles with a 3 Line Pump. |
| 1988 | Chevrolet | G10 | N/A | Fits vehicles with a 3 Line Pump. |
| 1988 | Chevrolet | G20 | N/A | Fits vehicles with a 3 Line Pump. |
| 1987 | Chevrolet | G10 | N/A | Fits vehicles with a 3 Line Pump. |
| 1987 | Chevrolet | G20 | N/A | Fits vehicles with a 3 Line Pump. |
| 1978 | Chevrolet | C10 | N/A | Fits vehicles with a 3 Line Pump. |
| 1977 | Chevrolet | K5 Blazer | N/A | Fits vehicles with a 3 Line Pump. |
| 1976 | Chevrolet | G10 | N/A | with 3 Line Pump; Small Block |
| 1976 | Chevrolet | G20 | N/A | with 3 Line Pump; Small Block |
| 1976 | Chevrolet | G30 | N/A | with 3 Line Pump; Small Block |
| 1976 | Chevrolet | K10 Suburban | N/A | with 3 Line Pump; with Air Conditioning; with 2BBL Carburetor |
| 1976 | Chevrolet | K20 | N/A | with 3 Line Pump; with Air Conditioning; with 2BBL Carburetor |
| 1976 | Chevrolet | K20 Suburban | N/A | with 3 Line Pump; with Air Conditioning; with 2BBL Carburetor |
| 1976 | Chevrolet | K5 Blazer | N/A | with 3 Line Pump; with Air Conditioning; with 2BBL Carburetor |
| 1976 | GMC | G15 | N/A | with 3 Line Pump; Small Block |
| 1976 | GMC | G15 | N/A | Fits vehicles with a 3 Line Pump. |
| 1976 | GMC | G25 | N/A | with 3 Line Pump; Small Block |
| 1976 | GMC | G25 | N/A | with 3 Line Pump; with Air Conditioning; with 2BBL Carburetor |
| 1976 | GMC | G35 | N/A | with 3 Line Pump; Small Block |
| 1976 | GMC | G35 | N/A | Fits vehicles with a 3 Line Pump. |
| 1975 | Chevrolet | El Camino | N/A | Fits vehicles with a 3 Line Pump. |
| 1975 | Chevrolet | G10 | N/A | Fits vehicles with a 3 Line Pump. |
| 1975 | Chevrolet | G20 | N/A | with 3 Line Pump; Small Block |
| 1975 | Chevrolet | G20 | N/A | Fits vehicles with a 3 Line Pump. |
| 1975 | Chevrolet | G30 | N/A | with 3 Line Pump; Small Block |
| 1975 | Chevrolet | G30 | N/A | Fits vehicles with a 3 Line Pump. |
| 1975 | Chevrolet | K5 Blazer | N/A | with 3 Line Pump; with Air Conditioning; with 2BBL Carburetor |
| 1975 | GMC | G35 | N/A | with 3 Line Pump; Small Block |
| 1974 | Chevrolet | El Camino | N/A | Fits vehicles with a 3 Line Pump. |
| 1974 | Chevrolet | K10 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1974 | Chevrolet | K20 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1974 | GMC | G15/G1500 Van | N/A | Fits vehicles with a 3 Line Pump. |
| 1974 | GMC | G25/G2500 Van | N/A | Fits vehicles with a 3 Line Pump. |
| 1974 | GMC | G35/G3500 Van | N/A | Fits vehicles with a 3 Line Pump. |
| 1973 | Chevrolet | K10 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1973 | Chevrolet | K20 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1973 | GMC | G15/G1500 Van | N/A | Fits vehicles with a 3 Line Pump. |
| 1973 | GMC | G25/G2500 Van | N/A | Fits vehicles with a 3 Line Pump. |
| 1973 | GMC | G35/G3500 Van | N/A | Fits vehicles with a 3 Line Pump. |
| 1972 | Chevrolet | Bel Air | N/A | with 3 Line Pump; Small Block |
| 1972 | Chevrolet | Blazer | N/A | Fits vehicles with a 3 Line Pump. |
| 1972 | Chevrolet | C10 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1972 | Chevrolet | Caprice | N/A | with 3 Line Pump; Small Block |
| 1972 | Chevrolet | Caprice | N/A | Fits vehicles with a 3 Line Pump. |
| 1972 | Chevrolet | El Camino | N/A | Fits vehicles with a 3 Line Pump. |
| 1972 | Chevrolet | Impala | N/A | with 3 Line Pump; Small Block |
| 1972 | Chevrolet | Impala | N/A | Fits vehicles with a 3 Line Pump. |
| 1972 | Chevrolet | K10 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1972 | Chevrolet | K20 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1972 | Chevrolet | Monte Carlo | N/A | with 3 Line Pump; Small Block |
| 1971 | Chevrolet | Bel Air | N/A | with 3 Line Pump; Small Block |
| 1971 | Chevrolet | Bel Air | N/A | Fits vehicles with a 3 Line Pump. |
| 1971 | Chevrolet | Blazer | N/A | Fits vehicles with a 3 Line Pump. |
| 1971 | Chevrolet | C10 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1971 | Chevrolet | Caprice | N/A | with 3 Line Pump; Small Block |
| 1971 | Chevrolet | Caprice | N/A | Fits vehicles with a 3 Line Pump. |
| 1971 | Chevrolet | El Camino | N/A | Fits vehicles with a 3 Line Pump. |
| 1971 | Chevrolet | Impala | N/A | with 3 Line Pump; Small Block |
| 1971 | Chevrolet | Impala | N/A | Fits vehicles with a 3 Line Pump. |
| 1971 | Chevrolet | K10 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1971 | Chevrolet | K20 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1971 | Chevrolet | Monte Carlo | N/A | with 3 Line Pump; Small Block |
| 1970 | Chevrolet | Blazer | N/A | Fits vehicles with a 3 Line Pump. |
| 1970 | Chevrolet | C10 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1970 | Chevrolet | Caprice | N/A | Fits vehicles with a 3 Line Pump. |
| 1970 | Chevrolet | El Camino | N/A | Fits vehicles with a 3 Line Pump. |
| 1970 | Chevrolet | Impala | N/A | Fits vehicles with a 3 Line Pump. |
| 1970 | Chevrolet | K10 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1970 | Chevrolet | K20 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1969 | Chevrolet | Blazer | N/A | Fits vehicles with a 3 Line Pump. |
| 1969 | Chevrolet | C10 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1969 | Chevrolet | Caprice | N/A | Fits vehicles with a 3 Line Pump. |
| 1969 | Chevrolet | El Camino | N/A | Fits vehicles with a 3 Line Pump. |
| 1969 | Chevrolet | Impala | N/A | Fits vehicles with a 3 Line Pump. |
| 1969 | Chevrolet | K10 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1969 | Chevrolet | K20 Suburban | N/A | Fits vehicles with a 3 Line Pump. |
| 1968 | Chevrolet | El Camino | N/A | Fits vehicles with a 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.