ARP insert washers are designed to protect the top of the bolt holes from galling or collapsing around studs or bolts. They are fully CNC-machined from premium through-hardened 8740 stock.

More From This Category

ARP Washer, Insert, Washer, Insert, .875 OD X 7/16 ID

ARP Washer, Insert, Washer, Insert, .875 OD X 7/16 ID

$8.88

ARP Washer, Hardened, High Performance, Flat, 5/16 in. ID, 0.675 in. OD, 0.120 Thick, Chromoly, Black Oxide, Set of 2

ARP Washer, Hardened, High Performance, Flat, 5/16 in. ID, 0.675 in. OD, 0.120 Thick, Chromoly, Black Oxide, Set of 2

$4.69

ARP Washer, Flat Washer, 0.400 in. Outer Diameter, 0.250 in. Inner Diameter, Chromoly, Black Oxide, Set of 10

ARP Washer, Flat Washer, 0.400 in. Outer Diameter, 0.250 in. Inner Diameter, Chromoly, Black Oxide, Set of 10

$16.80

ARP Washer, Hardened, High Performance, Flat, 9/16 in. ID, 1.000 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Each

ARP Washer, Hardened, High Performance, Flat, 9/16 in. ID, 1.000 in. OD, Chromoly, Black Oxide, 0.12 in. Thick, Each

$2.17

ARP Washer, Hardened, High Performance, Flat, 3/8 in. ID, 0.725 in. OD, Stainless Steel, Polished, 0.09 in. Thick, Set of 10

ARP Washer, Hardened, High Performance, Flat, 3/8 in. ID, 0.725 in. OD, Stainless Steel, Polished, 0.09 in. Thick, Set of 10

$17.64

ARP Washer, Insert, Washer, Insert, .250 in. Inside Diameter, .317 in. Outside Diameter, Set of 10

ARP Washer, Insert, Washer, Insert, .250 in. Inside Diameter, .317 in. Outside Diameter, Set of 10

$89.18