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Airtex 40503 Mechanical Fuel Pump
| Brand | Airtex 40503 |
|---|---|
| Mounting Hardware Included | No |
| Gasket Or Seal Included | Yes |
| Mounting Hole Quantity | 2 |
| Inlet Type | Hose connection |
| Outlet Type | Threaded |
| Inlet Quantity | 1 |
| Outlet Quantity | 1 |
| Minimum Flow Rating | 30 |
| Filter Included | No |
| Flow Rate | 30 |
| Gasket Included | Y |
| In Tank or External | External |
| Inlet Fitting Thread Size | 5/16 inch |
| Inlet Outside Diameter | 3/8 |
| Internal Or External | External |
| Minimum Pressure | 2.0 |
| Outlet Fitting Thread Size | 1/2-20 unf |
| Pump Type | Mechanical |
| Universal Or Specific Fit | Specific |
| Wiring Harness Included | No |
| Fits | Chevrolet, GMC, and Pontiac · 194 vehicles |
Cross-references Airtex Fuel Pumps 40503, Carter M4513 and Delphi MF0020 for the same application. See all 13.
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Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Mechanical Fuel Pump options
Airtex 40503 Mechanical Fuel Pump
This part fits 194 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 1973 | Chevrolet | C10 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1973 | Chevrolet | K10 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1972 | Chevrolet | Blazer | 5.0L | V8 | with 2 Line Pump |
| 1972 | Chevrolet | C10 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1972 | Chevrolet | C20 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1972 | Chevrolet | Chevelle | 5.0L | V8 | with 2 Line Pump |
| 1972 | Chevrolet | El Camino | 5.0L | V8 | with 2 Line Pump |
| 1972 | Chevrolet | K10 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1972 | Chevrolet | K10 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1972 | Chevrolet | K20 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1972 | Chevrolet | Nova | 5.0L | V8 | with 2 Line Pump |
| 1972 | GMC | C15/C1500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1972 | GMC | C25/C2500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1972 | GMC | G25/G2500 Van | 5.0L | V8 | with 2 Line Pump |
| 1972 | GMC | Jimmy | 5.0L | V8 | with 2 Line Pump |
| 1972 | GMC | K15/K1500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1972 | GMC | Sprint | 5.0L | V8 | with 2 Line Pump |
| 1972 | Pontiac | Ventura | 5.0L | V8 | with 2 Line Pump |
| 1971 | Chevrolet | Blazer | 5.0L | V8 | with 2 Line Pump |
| 1971 | Chevrolet | C10 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1971 | Chevrolet | C10 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1971 | Chevrolet | C20 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1971 | Chevrolet | C20 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1971 | Chevrolet | C30 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1971 | Chevrolet | Chevelle | 5.0L | V8 | with 2 Line Pump |
| 1971 | Chevrolet | El Camino | 5.0L | V8 | with 2 Line Pump |
| 1971 | Chevrolet | K10 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1971 | Chevrolet | K10 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1971 | Chevrolet | K20 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1971 | Chevrolet | Nova | 5.0L | V8 | with 2 Line Pump |
| 1971 | GMC | C15/C1500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1971 | GMC | C15/C1500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1971 | GMC | C25/C2500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1971 | GMC | C25/C2500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1971 | GMC | C35/C3500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1971 | GMC | G15/G1500 Van | 5.0L | V8 | with 2 Line Pump |
| 1971 | GMC | G25/G2500 Van | 5.0L | V8 | with 2 Line Pump |
| 1971 | GMC | Jimmy | 5.0L | V8 | with 2 Line Pump |
| 1971 | GMC | K15/K1500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1971 | GMC | K15/K1500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1971 | GMC | Sprint | 5.0L | V8 | with 2 Line Pump |
| 1971 | Pontiac | Ventura | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | Blazer | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | C10 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | C10 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | C20 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | C20 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | C30 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | Camaro | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | Chevelle | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | El Camino | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | Estate | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | G10 Van | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | G20 Van | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | K10 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | K10 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | K20 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | K20 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1970 | Chevrolet | Nova | 5.0L | V8 | with 2 Line Pump |
| 1970 | GMC | C15/C1500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1970 | GMC | C15/C1500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1970 | GMC | C25/C2500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1970 | GMC | C25/C2500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1970 | GMC | C35/C3500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1970 | GMC | G15/G1500 Van | 5.0L | V8 | with 2 Line Pump |
| 1970 | GMC | G25/G2500 Van | 5.0L | V8 | with 2 Line Pump |
| 1970 | GMC | Jimmy | 5.0L | V8 | with 2 Line Pump |
| 1970 | GMC | K15/K1500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1970 | GMC | K15/K1500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1970 | GMC | K25/K2500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1970 | GMC | P25/P2500 Van | 5.0L | V8 | with 2 Line Pump |
| 1970 | GMC | P35/P3500 Van | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | Blazer | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | C10 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | C10 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | C20 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | C20 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | C30 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | C50 | 5.4L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | C60 | 5.4L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | Chevelle | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | El Camino | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | Estate | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | G10 Van | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | K10 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | K10 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | K20 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | K20 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | Nova | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | P20 Van | 5.0L | V8 | with 2 Line Pump |
| 1969 | Chevrolet | P30 Van | 5.0L | V8 | with 2 Line Pump |
| 1969 | GMC | C15/C1500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1969 | GMC | C15/C1500 Pickup | 5.0L | V6 | with 2 Line Pump |
| 1969 | GMC | C15/C1500 Suburban | 5.0L | V6 | with 2 Line Pump |
| 1969 | GMC | C15/C1500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1969 | GMC | C25/C2500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1969 | GMC | C25/C2500 Pickup | 5.0L | V6 | with 2 Line Pump |
| 1969 | GMC | C25/C2500 Suburban | 5.0L | V6 | with 2 Line Pump |
| 1969 | GMC | C25/C2500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1969 | GMC | C35/C3500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1969 | GMC | C35/C3500 Pickup | 5.0L | V6 | with 2 Line Pump |
| 1969 | GMC | G15/G1500 Van | 5.0L | V8 | with 2 Line Pump |
| 1969 | GMC | G25/G2500 Van | 5.0L | V8 | with 2 Line Pump |
| 1969 | GMC | K15/K1500 Pickup | 5.0L | V6 | with 2 Line Pump |
| 1969 | GMC | K15/K1500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1969 | GMC | K25/K2500 Pickup | 5.0L | V6 | with 2 Line Pump |
| 1969 | GMC | K25/K2500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1969 | GMC | K25/K2500 Suburban | 5.0L | V6 | with 2 Line Pump |
| 1969 | GMC | K25/K2500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1969 | GMC | K35/K3500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1969 | GMC | K35/K3500 Pickup | 5.0L | V6 | with 2 Line Pump |
| 1969 | GMC | P25/P2500 Van | 5.0L | V8 | with 2 Line Pump |
| 1969 | GMC | P35/P3500 Van | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | Bel Air | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | Biscayne | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | C10 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | C10 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | C20 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | C30 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | C50 | 5.4L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | C60 | 5.4L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | Chevelle | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | Chevy II | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | G10 Van | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | Impala | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | K10 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | K10 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | K20 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1968 | Chevrolet | K20 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1968 | GMC | C15/C1500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1968 | GMC | C15/C1500 Pickup | 5.0L | V6 | with 2 Line Pump |
| 1968 | GMC | C15/C1500 Suburban | 5.0L | V6 | with 2 Line Pump |
| 1968 | GMC | C15/C1500 Suburban | 5.0L | V8 | with 2 Line Pump |
| 1968 | GMC | C25/C2500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1968 | GMC | C25/C2500 Pickup | 5.0L | V6 | with 2 Line Pump |
| 1968 | GMC | C35/C3500 Pickup | 5.0L | V8 | with 2 Line Pump |
| 1968 | GMC | C35/C3500 Pickup | 5.0L | V6 | with 2 Line Pump |
| 1968 | GMC | G15/G1500 Van | 5.0L | V8 | with 2 Line Pump |
| 1968 | GMC | P25/P2500 Van | 5.0L | V8 | with 2 Line Pump |
| 1968 | GMC | P35/P3500 Van | 5.0L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | Bel Air | 5.3L | V8 | Early Production; with 2 Line Pump |
| 1967 | Chevrolet | Bel Air | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | Biscayne | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | Biscayne | 5.3L | V8 | Early Production; with 2 Line Pump |
| 1967 | Chevrolet | C10 Pickup | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | C10 Pickup | 5.3L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | C10 Suburban | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | C10 Suburban | 5.3L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | C20 Pickup | 5.3L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | C20 Pickup | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | C20 Suburban | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | C30 Pickup | 5.3L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | C30 Pickup | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | C50 | 5.4L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | C60 | 5.4L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | Camaro | 5.7L | V8 | Early Production; with 2 Line Pump |
| 1967 | Chevrolet | Camaro | 5.3L | V8 | Early Production; with 2 Line Pump |
| 1967 | Chevrolet | Caprice | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | Chevelle | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | Chevelle | 5.3L | V8 | Late Production; with 2 Line Pump |
| 1967 | Chevrolet | Chevy II | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | Chevy II | 5.3L | V8 | Early Production; with 2 Line Pump |
| 1967 | Chevrolet | Corvette | 5.3L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | El Camino | 5.3L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | El Camino | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | Impala | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | Impala | 5.3L | V8 | Early Production; with 2 Line Pump |
| 1967 | Chevrolet | K10 Pickup | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | K10 Pickup | 5.3L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | K10 Suburban | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | K10 Suburban | 5.3L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | K20 Pickup | 5.3L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | K20 Pickup | 4.6L | V8 | with 2 Line Pump |
| 1967 | Chevrolet | K20 Suburban | 4.6L | V8 | with 2 Line Pump |
| 1967 | GMC | C15/C1500 Pickup | 5.3L | V8 | with 2 Line Pump |
| 1967 | GMC | C15/C1500 Pickup | 4.6L | V8 | with 2 Line Pump |
| 1967 | GMC | C15/C1500 Suburban | 5.3L | V8 | with 2 Line Pump |
| 1967 | GMC | C15/C1500 Suburban | 4.6L | V8 | with 2 Line Pump |
| 1967 | GMC | C25/C2500 Pickup | 5.3L | V8 | with 2 Line Pump |
| 1967 | GMC | C25/C2500 Pickup | 4.6L | V8 | with 2 Line Pump |
| 1967 | GMC | C25/C2500 Suburban | 4.6L | V8 | with 2 Line Pump |
| 1967 | GMC | C35/C3500 Pickup | 4.6L | V8 | with 2 Line Pump |
| 1967 | GMC | C35/C3500 Pickup | 5.3L | V8 | with 2 Line Pump |
| 1967 | GMC | G15/G1500 Van | 4.6L | V8 | with 2 Line Pump |
| 1967 | GMC | P25/P2500 Van | 4.6L | V8 | with 2 Line Pump |
| 1967 | GMC | P35/P3500 Van | 4.6L | V8 | with 2 Line Pump |
| 1966 | Chevrolet | K20 Pickup | 5.3L | V8 | with 2 Line Pump |
| 1965 | Chevrolet | K20 Pickup | 4.6L | V8 | with 2 Line Pump |
| 1964 | Chevrolet | K20 Pickup | 4.6L | V8 | with 2 Line Pump |
| 1963 | Chevrolet | K20 Pickup | 3.8L | L6 | with 2 Line Pump |
| 1963 | Chevrolet | K20 Pickup | 4.8L | L6 | with 2 Line Pump |
| 1963 | Chevrolet | K20 Pickup | 4.6L | V8 | with 2 Line Pump |
| 1962 | Chevrolet | K20 Pickup | 4.6L | V8 | with 2 Line Pump |
| 1961 | Chevrolet | K20 Pickup | 4.6L | V8 | with 2 Line Pump |
| No rows match your filter. | |||||
Directly replaces or cross-references 13 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Airtex Fuel Pumps — 40503Carter — M4513Delphi — MF0020GMB — 520-8090Spectra Premium — SP1029MP602-1089635949296029664167126440503A11132139TGB0157PM16071