Coolant Reservoir
Hover over the image to zoom in
Coolant Reservoir


Dorman - OE Solutions Coolant Reservoir

Part No. 603-203 Warranty  

See if this part fits a specific vehicle.

Check Vehicle Fit

Dorman’s Engine Coolant Recovery Tank is designed for enduring use. It resists the expansion and cracking that extreme temperature fluctuations can cause. Plus, the durable plastic construction prevents coolant fluid loss.

Product Features:
  • Comes with reservoir cap
  • Level sensor included (where applicable)
  • Direct replacement for a proper fit every time
  • Quality tested to ensure trouble-free installation and performance
Back To Top
Cap Included:Yes
Color/Finish:White
Material:Plastic
Mounting Hardware Included:No

REVIEW SNAPSHOT®

by PowerReviews
Dorman - OE SolutionsCoolant Reservoir
 
3.2

(based on 9 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (3)

56%

of respondents would recommend this to a friend.

Pros

  • Easy to install (7)
  • Durable (3)

Cons

    Best Uses

        • Car & Truck:
        • Casual driver (3)
        • Reviewer Profile:
        • Casual driver (3)

      Reviewed by 9 customers

      Sort by

      Displaying reviews 1-9

      Back to top

       
      5.0

      Good Product

      By Jim the Runner

      from Florence, AL

      About Me Casual Driver

      Verified Buyer
      Level 1

      Pros

      • Easy To Install

      Cons

        Best Uses

        • Replacement

        Comments about Dorman - OE Solutions Coolant Reservoir:

        This product was exactly the same as the factory original. It's been installed about a month with no problems.

        Comment on this review(earn points)

         
        5.0

        easy to install works wonderfully

        By angel the dare devil

        from sebring,fl

        About Me Casual Driver

        Verified Buyer
        Level 1

        Pros

        • And It Was So Easy For Me
        • Durable
        • Easy To Install
        • Great Product Im A Girl

        Cons

        • No Improvement In Performance

        Best Uses

        • Everyday Driving

        Comments about Dorman - OE Solutions Coolant Reservoir:

        Awesome

        Comment on this review(earn points)

         
        5.0

        water reservoir

        By dirtbike

        from Houston, texas

        About Me Auto Enthusiast

        Verified Buyer
        Level 1

        Pros

        • Durable
        • Easy To Install
        • Lightweight

        Cons

          Best Uses

          • Everyday Driving

          Comments about Dorman - OE Solutions Coolant Reservoir:

          I like how it was see through and easy to read my coolant level

          Comment on this review(earn points)

           
          1.0

          Don't waste your time or money

          By disappointed

          from Lakeland, FL

          About Me Casual Driver

          Pros

            Cons

            • No Improvement In Performance

            Best Uses

              Comments about Dorman - OE Solutions Coolant Reservoir:

              Don't waste your time or money on this! Put this in my car a year ago because my previous had a crank in it and i have had nothing but problems! It won't hold water, bubbles out! So got new cap to try to fix it from bubbling out and what does this stupid weak plastic part do but crack! This was the second one!

              Comment on this review(earn points)

               
              4.0

              Good as Factory

              By G-Man

              from Huntsville, Al.

              Verified Buyer

              Pros

              • Easy To Install
              • Improves Engine Efficiency

              Cons

              • none

              Best Uses

              • Replacement

              Comments about Dorman - OE Solutions Coolant Reservoir:

              Works fine, Equivalent to factory. Don't overfill the coolant.

              • Car & Truck:
              • Auto Enthusiast, Casual Driver, Mechanic

              Comment on this review(earn points)

               
              1.0

              bad bad product

              By 02 Taurus SE

              from Ohio

              Pros

              • Easy To Install
              • Lightweight

              Cons

                Best Uses

                  Comments about Dorman - OE Solutions Coolant Reservoir:

                  third time replacing the tank! stock tank failed after 90000miles of life. replaced with this Dorman tank. within half-a-year, the Dorman tank cracked open from the bottom, still under warranty, replaced with a same tank. This second tank now threads are gone. Now i have to replace it again~

                  • Car & Truck:
                  • Auto Enthusiast, Casual Driver

                  Comment on this review(earn points)

                   
                  1.0

                  Useless because cap will not tighten

                  By Vaughn

                  from Johnson City, TN

                  Pros

                  • Easy To Install

                  Cons

                  • Cap will not tighten
                  • Causes coolant overflow
                  • No system pressure
                  • Slips on threads

                  Best Uses

                  • Dispensing kool aide

                  Comments about Dorman - OE Solutions Coolant Reservoir:

                  Apparently these all suffer the same problem, because the replacement I received was just as bad. Cap will not tighten. Took my car in to get radiator flushed, and they could not do it because the cap kept popping off. Trying to fit a Ford OEM cap the shop had laying around also did not work, indicating the tank threads may be bad.

                  Comment on this review(earn points)

                   
                  4.0

                  100 % Fit

                  By J

                  from VA

                  Pros

                  • Easy To Install

                  Cons

                    Best Uses

                      Comments about Dorman - OE Solutions Coolant Reservoir:

                      Fit is 100% Quality Product..However Cap is Junk.

                      Leaks Fluid and Fumes...Buy a New Stant cap.

                      Otherwise Very Nice Product.

                      Comment on this review(earn points)

                      (1 of 1 customers found this review helpful)

                       
                      3.0

                      Tank good,cap not so good

                      By pickerbush

                      from New Jersey

                      Verified Reviewer

                      Pros

                      • Durable
                      • Easy To Use

                      Cons

                        Best Uses

                        • Large Cars

                        Comments about Dorman - OE Solutions Coolant Reservoir:

                        Cap would not tighten and kept letting fluid come out. It would click like was tight but wasn't. Was not at the spec 16 lbs. Had to re-install my old cap and that fixed the problem.

                        • Car & Truck:
                        • Casual Driver

                        Comment on this review(earn points)

                        Displaying reviews 1-9

                        Back to top

                        Create or view your online garage

                        Check out the specials in our monthly flyer

                         
                         
                        Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.