Not just mustang parts but various SALE items along with all our BLEMISHED items
Vacuum Secondary Diaphragm, Rubber, Holley Carburetors, Each
Holley Vacuum Secondary Diaphragms
Holley vacuum secondary diaphragms will replace your existing worn-out diaphragms. They are made from a high performance rubber material and will fit most Holley carburetors with vacuum secondaries.