ARP Parts and Accessories

Connecting Rod Bolts, Cracked Cap Design, Chevy, LS Small Block, Pair

Part Number: ARP-234-6321

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Nuts, 12-Point Head, Steel, Black Oxide, 12mm x 1.75 RH Thread, Pair

Part Number: ARP-300-8386

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Header Bolts, 12-Point, 5/16 in. Wrench, Custom 450, Black Oxide, 3/8 in.-16, 1.000 in. U.H.L., Set of 12

Part Number: ARP-100-1209

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

Bolts, Hex Head, Chromoly Steel, Black Oxide, 6mm x 1.0 RH Thread, 45mm UHL, Set of 5

Part Number: ARP-660-1006

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Washers, Special Purpose, Chromoly, Black, 0.71 in. I.D., 2.90 in. O.D., 0.450 in. Thickness, Harmonic Damper Washer for Chevrolet Duramax 6.6L, Each

Part Number: ARP-200-8793

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Nut, 12-Point, Stainless Steel, Polished, 1/2 in.- 20 Thread, Pair

Part Number: ARP-400-8324

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Bellhousing Bolts, 12-point, 7/16-14 in. Thread, Steel, Black Oxide, Ford, 289, 302, 351W, Kit

Part Number: ARP-154-0902

3.88 out of 5 stars ( 8 )

Estimated Ship Date: Monday 2/2/2026

Air Cleaner Stud/Nut, Stainless Steel, 1/4 in.-20 Thread, 2.7 in. Length, Each

Part Number: ARP-400-0305

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 2/2/2026

Bolts, Hex Head, Chromoly Steel, Black Oxide, 8mm x 1.25 RH Thread, 90mm UHL, Set of 5

Part Number: ARP-661-1014

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

Bolts, Hex Head, Custom 450, Black Oxide, 5/16 in.-18 RH Thread, 0.560 in. UHL, Set of 5

Part Number: ARP-651-0560

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

Bolts, 12-Point Head, Stainless 300, Polished, 1/4 in.-20 RH Thread, 3.250 in. UHL, Set of 5

Part Number: ARP-611-3250

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Washer, Flat Washer, 0.440 in. Outer Diameter, 0.250 in. Inner Diameter, Chromoly, Black Oxide, Set of 10

Part Number: ARP-200-8440

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Washers, Chromoly, Black Oxide, .438 in. I.D., .750 in. O.D., .073 in. Thick, Set of 10

Part Number: ARP-200-8682

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

Bolts, 12-Point Head, Chromoly Steel, Black Oxide, 10mm x 1.50 RH Thread, 20mm UHL, Set of 5

Part Number: ARP-672-1001

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

Bolts, Hex Head, Chromoly Steel, Black Oxide, 10mm x 1.25 RH Thread, 50mm UHL, Set of 5

Part Number: ARP-663-1007

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Fitting, Bung, Weld-In, Female 3/4 in. NPT, Steel, Each

Part Number: ARP-800-8204

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 2/2/2026

Bolts, 12-Point Head, Chromoly Steel, Black Oxide, 5/16 in.-24 RH Thread, 1.250 in. UHL, Set of 5

Part Number: ARP-741-1250

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

Bolts, 12-Point Head, Custom 450, Black Oxide, 1/4 in.-20 RH Thread, 3.500 in. UHL, Set of 5

Part Number: ARP-640-3500

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Thermostat Housing Bolts, Polished Stainless, Hex, Ford, Windsor, Set

Part Number: ARP-450-7402

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Monday 2/2/2026

Bolts, Hex Head, 8740 Chromoly, Black Oxide, 12mm x 1.50 RH Thread, 0.984 in. UHL, Set of 5

Part Number: ARP-664-1001

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Bolts, 12-Point Head, Custom 450, Black Oxide, 1/4 in.-20 RH Thread, 1.500 in. UHL, Set of 5

Part Number: ARP-640-1500

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

Washers, Stainless Steel, Polished, .438 in. Inside Diameter, .813 in. Outside Diameter, .120 in. Thick, Set 10

Part Number: ARP-400-8539

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

Nuts, 12-Point, Steel, Black Oxide, 7/16 in.-14 RH Thread, Set of 10

Part Number: ARP-301-8346

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

Air Cleaner Stud/Nut, Stainless Steel, 5/16 in.-18 Thread, 3.2 in. Length, Each

Part Number: ARP-400-0303

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 2/2/2026

Bolts, Hex Head, Stainless 300, Polished, 5/16 in.-18 RH Thread, 2.500 in. UHL, Set of 5

Part Number: ARP-622-2500

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026