ARP 400-8509 Washer
ARP 400-8509 Washer
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ARP 400-8509
A true high performance washer from ARP, available in a variety of sizes and thickness, and with or without Inside Diameter chamfers. All are constructed from premium chrome moly and are parallel ground, hardened, and finished in black oxide. Our 3/8 Inch Inside Diameter washers, for example, come in four different sizes Outer Diameter and different thicknesses. Special connecting rod washers are available, as are some of the more popular metric sizes. All of the washers are available individually, with most of them also offered in handy 2 piece and 10 piece packages. Build up an inventory of these premium quality washers so you won’t get caught short when the need arises.
Features & Benefits
- Constructed from premium chrome moly and are parallel ground, hardened, and finished in black oxide
- Limited 90 day warranty
Specifications
| Color | Chrome/Black |
| Weight | 0.11 lb |
| Dimensions | 5 x 4 x 2.5 in |
| Brand | ARP |
| Manufacturer Part Number | 400-8509 |
Frequently Asked Questions
What color is this auto part?
This is the Chrome/Black variant from ARP.
What stands out about this auto part?
Key details include Limited 90 day warranty. Review the full feature list and specifications on this page for complete details.
How much does this product weigh?
This item weighs approximately 0.11 lb.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

