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ARP

ARP 7/16 ID .705 OD SS washer

$2.16

SKU: A00M 400-8780

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The ARP 400-8780 is a washer kit featuring SAE Special Purpose washers made from stainless steel. These washers have a 7/16" inner diameter, a 0.705" outer diameter, and a thickness of 0.090". They are chamfered for ease of installation.

This item is considered a special order and is not available for immediate pickup or dispatch. No returns, cancellations, or refunds are allowed on special orders. Delivery may take an additional 2-4 weeks, but an express option is available upon request.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandARP
Part NumberA00M 400-8780

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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