Mustang Scott Drake Carburetor Accelerator Pump Autolite 2V/4V 1965-1973
Part Number: C4AZ-9B559-A
Scott Drake Accelerator Pump for 1965-1973 Mustangs with an Autolite 2V Carburetor and 1965-1967 Mustangs with an Autolite 4V Carburetor.
With the use of ethanol in today’s gas, this pump is known to commonly fail when sitting for an extended period of time. Complete failure will cause dangerous fuel leaks, but a faulty pump will affect performance well before a complete failure.
Tech Tip: It is a good idea to replace this pump every 2-3 years or after sitting for over a 6 month period.