1/2" Alternator Pulley for JJS978 Fits Many Ford Models

Quality Aftermarket 1/2" Alternator Pulley For JJS978

Fits: many Ford models. Verify specifications for your specific application.

Specifications

.670" shaft dia., 3-3/16" pulley O.D., 1/2" belt width

Fits our JJS978 alternator

0.670" shaft diameter

Round hole (not keyed)

3-3/16" pulley outside diameter

0.500" (1/2") belt groove / belt width