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Dorman603-500 Coolant Reservoir - Plastic, Direct Fit

Part #: RB603500 | Mfr #: 603-500

In Stock
Ships out in 1-2 Business Days
  • APW Bestseller
  • Low Price Guarantee

5 5 out of 5 stars
(6 customer reviews)

$54.41

List Price: $79.25

Save: $24.84

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  • Overview
  • Manufacturer info
  • Related Products
  • Material: Plastic
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Anticipated Ship Out Time: 1-2 Business Days
  • Does Not Include: Low fluid sensor and hose
  • Includes: Cap
  • Notes: Includes cap; does not include level sensor & hose
  • Replaces OE Number: KLG415350C
  • Warranty: Lifetime Dorman limited warranty
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Product reviews

by , December 9, 2011

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I have replaced this tank from Mazda at least 4 times. With the Dorman lifetime warranty I hope this is the last one I have to buy. It is an exact replacement for the OEM product.


by , November 8, 2010

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Arrived in short time and fit perfectly as a direct replacement.


The right part by North Texas, June 29, 2010

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called the dealership found out the part number and price. safed some money buying this one.


by hawki65, May 4, 2010

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Great price; much better then buying from the dealer; very easy to install.


Very good choice by Shooter, January 7, 2010

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It was a perfect fit and at a good price. Probably saved myself $150 or more by ordering and installing myself. The only issue I had was that the first tank I received was damaged. It's overflow tube had been broken off, but the tank was promptly replaced. Thank you!


Good Value for a difficult part to find by Archie's Mom, August 1, 2009

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I bought this part on line because I could not find it anywhere else. It came on time and was in perfect condition.