| ACDELCO 40963 Specifications |
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| Connection Type | Female | | Gasket or Seal Included | Yes | | Housing Material | Aluminum | | Inlet Type | Threaded | | Instruction Sheet 1 | ISheets_Fuel_Pump_001 | | Maximum Flow Rating (gph) | 40 | | Maximum Flow Rating (gph) | 40 | | Maximum Pressure | 9 | | Maximum Pressure (psi) | 9 | | Meets or Exceeds OEM Specifications | Yes | | Mount Hole Quantity | 2 | | Mount Hole Quantity
Mount Hole Quantity | 2 | | Mounting Hardware Included | No | | New Or Remanufactured | New | | Outlet Diameter (IN) | 0.625 | | Outlet Diameter (MM) | 15.875 | | Outlet Quantity | 1 | | Outlet Type | Threaded | | Programming Required | No |
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| GM Original Equipment; Mechanical Pump |
ACDelco GM Original Equipment Mechanical Fuel Pumps are diaphragm positive displacement pumps. A rocker arm driven off the fuel pump camshaft lobe moves the diaphragm, causing fuel to be drawn in through a one-way inlet reed valve. As the cam lobe rotates away from the rocker arm, a spring pushes the diaphragm back, pushing the fuel out through a one-way outlet reed valve to the carburetor. These original equipment fuel pumps have been manufactured to fit your specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
Features
- Able to fulfill original equipment specifications on earlier-model carbureted engines
- Meet the original model year specific requirements for both Environmental Protection Agency (EPA) and California Air Resources Board of Emissions (CARB) certifications
- GM-recommended replacement part for your GM vehicle's original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM OE specification for fit, form, and function
ACDelco Quality ACDelco breaks down their premium portfolio of Original Equipment and Aftermarket parts into two tiers: GM Original Equipment and ACDelco Gold.
| GM ORIGINAL EQUIPMENT |
| GM Original Equipment parts are the true OE parts installed during production or validated by GM—designed, engineered, and tested to rigorous standards and backed by General Motors. |
| ACDELCO GOLD (PROFESSIONAL) |
| ACDelco Gold parts are the high-quality alternative to OE parts, manufactured to meet GM expectations for fit, form, and function and backed by General Motors. |
 Additional Resources
Do I have Federal or California Emissions?
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| OEM / Interchange Numbers: 06470761, 6470761 |
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