ARP Insert Washers, 7/16" I.D, 7/8" O.D, .529" Insert (AR200-8597)

A true high performance washer from ARP, available in a variety of sizes and thicknesses, and with or without I.D. (inside diameter) chamfers. Our washers are constructed from either premium chrome moly with a black oxide finish or polished ARP stainless steel and are hardened.