Fuel Pump, 1966 GTO 6.4L/LeMans & Tempest 5.3L, 1965-66 Bon/Cat/GP 6.4L/6.9L

1966 Pontiac GTO, LeMans & Tempest / 1965–66 Full-Size Pontiac Mechanical Fuel Pump (Mechanical)

Original-style diaphragm fuel pump with model-specific inlet and outlet connection arrangement.

This mechanical fuel pump serves the original carbureted fuel system on 1966 Pontiac GTO, LeMans & Tempest / 1965–66 Full-Size Pontiac. The pump mounts at the engine’s mechanical fuel-pump location and uses a diaphragm actuated by the engine to draw fuel from the tank and deliver it toward the carburetor. Its mechanical fuel-line arrangement and port orientation must match the existing engine plumbing; two-line and three-line pumps are not interchangeable solely by engine displacement. The original-style mounting flange is intended for the specified block and fuel-pump drive. Compare the original pump connections, A/C configuration where applicable, and engine year before installation.

• 1966 Pontiac GTO, LeMans & Tempest / 1965–66 Full-Size Pontiac • Engine-operated diaphragm fuel pump • Mechanical fuel connection layout • Original-style pump flange location • Check fuel-line direction and fittings • For carbureted fuel-delivery systems