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ARP Special Purpose Washers

4.88 out of 5 stars 118 Customer Reviews

Hardened ARP Special Purpose washers are parallel-ground from premium chromoly. They are available in a variety of sizes and thicknesses for use on virtually any application. Special connecting rod washers are available, as are some of the popular metric sizes. Build up your supply so you don't get caught short when the need arises.

Results 1 - 25 of 97

Washers, Chromoly, Black Oxide, .438 in. I.D., .813 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-200-8530

4.92 out of 5 stars ( 13 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Chromoly, Black Oxide, .375 in. I.D., .875 in. O.D., .150 in. Thick, Set of 10

Part Number: ARP-200-8688

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Chromoly, Black Oxide, Chamfered, .500 in. I.D., .875 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-200-8533

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Chromoly, Black Oxide, .375 in. I.D., .750 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-200-8557

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Chromoly, Black Oxide, .500 in. I.D., .875 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-200-8534

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Flat Washers, Stainless Steel, Polished, 0.375 in. I.D., 0.715 in. o.d., 0.120 in. Thick, Set of 10

Part Number: ARP-400-8508

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Chromoly, Black Oxide, .375 in. I.D., .625 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-200-8554

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Flat, Stainless Steel, Polished, .313 in. I.D., .625 in. O.D., Set of 10

Part Number: ARP-400-8550

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Chromoly, Black Oxide, .563 in. I.D., 1 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-200-8535

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Flat, Chromoly, Black Oxide, .313 in. I.D., .575 in. O.D., Set of 10

Part Number: ARP-200-8643

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washer, Flat, Chromoly, Black Oxide, .472 in. I.D., 0.995 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-2008792

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Chromoly, Black Oxide, .438 in. I.D., .750 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-200-8531

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washer, Flat, Chromoly, Black Oxide, .625 in. I.D., 1.300 in. O.D., .120 in. Thick, Each

Part Number: ARP-200-8753

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Stainless Steel, Polished, .375 in. Inside Diameter, .750 in. Outside Diameter, .120 in. Thick, Set 10

Part Number: ARP-400-8537

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washer, Chromoly, Black Oxide, 2.00 in. Outside Diameter, 0.44 in. Inside Diameter, 0.275 in. Thick, Each

Part Number: ARP-200-8717

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washer, Flat, Chromoly, Black Oxide, .393 in. I.D., 0.750 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-200-8745

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Flat Washers, Chromoly, Black Oxide, 0.473 in. I.D., 0.875 in. O.D., 0.120 in. Thick, Set of 10

Part Number: ARP-200-8537

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Special Purpose Washer, Black Oxide, 7/16 in. ID - 13/16 in. OD, .120 Thickness, Chamfered, Each

Part Number: ARP-200-8509

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Chromoly, Black Oxide, .438 in. I.D., .813 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-200-8539

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Flat Washers, Stainless Steel, Polished, 0.375 in. I.D., 0.725 in. O.D., 0.090 in. Thick, Chamfered, Set of 10

Part Number: ARP-400-8473

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Chromoly, Black Oxide, .375 in. I.D., .625 in. O.D., .062 in. Thick, Set of 10

Part Number: ARP-200-8685

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Flat, Chromoly, Black Oxide, .375 in. I.D., .750 in. O.D., Set of 10

Part Number: ARP-200-8687

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Black Oxide, .313 in. Inside Diameter, .675 in. Outside Diameter, .120 in. Thick, Set of 10

Part Number: ARP-200-8587

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Chromoly, Black Oxide, .438 in. I.D., .750 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-200-8558

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

Washers, Special Purpose, 0.550 in. O.D., 0.250 in. I.D., 0.075 in. Thick, Chamfer Type, Stainless Steel, Hardened, Polished, Set of 10

Part Number: ARP-400-8525

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026