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ARP 200-8509 High-Performance Chrome Moly Washer with Chamfer

Part of: ARP Chrome Moly Washer

Other options in this family: ARP 200-8719 ARP 200-8751 ARP 200-8514 ARP 200-8642 ARP 200-8761

Manufacturer

Picture for manufacturer ARP

Part Number

200-8509
9 reviews
Sale Price

$2.86

In Stock (10+)

delivery box

Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

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Product Details

The ARP 200-8509 is a precision-machined, single-piece high-performance washer featuring an inside diameter (I.D.) chamfer. Manufactured from premium chrome moly steel, this washer is parallel-ground, hardened, and finished in a durable black oxide coating for corrosion resistance and a clean appearance.

Key Features:

  • Single-piece construction for maximum strength and reliability
  • Inside diameter (I.D.) chamfer for proper fastener seating
  • Constructed from premium chrome moly steel
  • Parallel-ground for consistent thickness and load distribution
  • Heat-treated and hardened for high-stress applications
  • Black oxide finish for corrosion resistance
  • Designed to complement ARP fastener kits and stud kits

ARP washers are engineered to work in concert with ARP bolts and studs, ensuring even clamping load distribution and protecting soft aluminum and cast iron sealing surfaces. The chamfered I.D. allows the washer to seat cleanly over fillet-radius fasteners without rocking or uneven bearing. A must-have component for any serious engine build.

Products specifications

Hardened

Yes

Inside Diameter Chamfer

Yes

Material

Black Oxide

Quantity

Sold individually.

Size (ID/OD)

7/16 / 13/16

Thickness

.120in

Washer Finish

Black oxide

Washer Inside Diameter (in)

0.438 in.

Washer Inside Diameter (mm)

11.125 mm

Washer Material

Chromemoly

Washer Outside Diameter (in)

0.813 in.

Washer Outside Diameter (mm)

20.650 mm

Washer Thickness (in)

0.120 in.

Washer Thickness (mm)

3.048 mm

Easy to use and very reasonably priced

I ordered a truck bed cover and Autoplicity had the lowest price I could find. I was a bit concerned that the delivery time might be longer than from other suppliers but to my surprise it arrived in just over a week. Customer service was good too. They answered all the questions I had about my order prior to shipment.

just a little higher than your competition but you had stock

I was impressed by the quality of the product at a great price.

So far it's great. Fast and easy to use and price and shipping were very good.

Great prices. OK service. My order shipped 5/6 days after placing my order...Granted 2 of those days were weekend days. I asked were it was shipping from and was told Illinois. Turns out it's coming from Cali. They did bump my order up to ship UPS 2day. Nice!

Lets see how it goes

I am very, very satisfied with my order. I ordered a Tonneau cover. It was a 35 lb. package and there was NO shipping cost to me. Plus it was received 3 days after my order. I searched many other websites and Autoplicity had the best pricing.

Autoplicity had the best price for what I needed. I received my order within 2 days boxed up nice and tight. What more could you ask for? I will be a repeat customer.

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