ARP Insert Washers

ARP's Insert Washers are made to protect the top of holes from galling or collapsing around studs or bolts. They’re ideal for head bolt holes, mid-motor plates, or any other high-wear area that requires a washer. These Insert Washers are fully CNC machined from premium thru-hardened 8740 stock. Easily installed by just oversizing hole and pressing in washer.