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ARP Special Purpose Washers

4.85 out of 5 stars 121 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 30

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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

Part Number: ARP-2008792

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

Washers, Chromoly, Black Oxide, Chamfered, .438 in. I.D., .875 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-200-8532

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

Washers, Chromoly, Black Oxide, 0.438 in. I.D., 0.995 in. O.D., 0.120 in. Thick, Set of 10

Part Number: ARP-200-8748

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

Washers, Flat, Hardened, Chromoly, Black Oxide, 0.500 in. i.d., 1.300 in. o.d., 0.120 in. Thick, Set of 10

Part Number: ARP-200-8742

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

Washers, Chromoly, Black Oxide, 0.438 in. i.d., 0.660 in. o.d., 0.120 in. Thick, Set of 10

Part Number: ARP-200-8768

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

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 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

Washers, Flat, Chromoly, Black Oxide, .394 in. I.D., .850 in. O.D., Set of 10

Part Number: ARP-200-8592

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

Washer, Flat, Chromoly, Black Oxide, .625 in. I.D., 2.000 in. O.D., .275 in. Thick, Each

Part Number: ARP-200-8755

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

Washers, Flat, Chromoly, Black Oxide, .438 in. I.D., .675 in. O.D., Set of 10

Part Number: ARP-200-8681

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

Washers, Flat, Chromoly, Black Oxide, .473 in. I.D., .875 in. O.D., .090 in., Thick, Set of 10

Part Number: ARP-200-8448

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air

Washers, Steel, Black Oxide, .313 in. I.D., .812 in. O.D., .120 in. Thick, Set of 10

Part Number: ARP-200-8588

Not Yet Reviewed

Estimated Ship Date: Monday 3/30/2026 if shipped by air

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Estimated Ship Date: Monday 3/30/2026 if shipped by air