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Universal Fit Add Vehicle

603-001 Universal Coolant Reservoir, 6 in. L x 6 in. W x 8 in. H, With Twist Cap

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$26.26Save: $14.27(54%)
Manufacturer #603-001
Universal Fit Add Vehicle


Does not replace original reservoir; This is an overflow tank, not a pressurized surge tank (coolant return system); Size - 6 in. L x 6 in. W x 8 in. H; With Twist Cap; Plastic Material; Includes Mounting Brackets
Product Fit:
Quantity Sold:
Sold individually
Lifetime Dorman limited warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

OE Solutions Series

Product Information


When it comes to cracked coolant reservoirs – or a lack of one – trust Dorman to deliver the best solution. This universal coolant reservoir fits where you need it and holds up against fluctuating coolant temperatures. Since 1918, Dorman Products has supplied the automotive aftermarket with high-quality replacement parts, hardware and fasteners.

  • Fits just about wherever you need it
  • Solid plastic design
  • Reservoir cap included
  • Dimensions: 6 in. L x 6 in. W x 8 in. H
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Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

Product Q&A

Hello, Will this item fit a 93 Ford E150 econoline van?Nikole L.Jan 26, 2023
Best Answer:Hi Nikole, I'm glad to assist you. No, it won't. Unfortunately, we don't carry direct-fit coolant reservoirs for the 1993 E-150. We suggest checking the local part stores around your area on what they have available to offer you. I hope this helps, and we thank you for inquiring.
Arnel E.STAFFJan 26, 2023
Will this part fit a Toyota Sienna 2004?Jeanne F.Feb 28, 2022
Best Answer:Hi Jeanne, I'm glad to assist you. This would not be compatible since the original bracket (on the engine where it is mounted) would not match the mounting slot or bracket of this universal type of coolant reservoir. But, you can make it fit with fabrication and modification of the bracket to mount this in place. Grab our sale price offer and click the link below to order today. I hope this helps. Happy shopping. <a href="https://www.carparts.com/coolant-reservoir/dorman/rb603001?can=CPJE1043_20220228" target="_blank">https://www.carparts.com/coolant-reservoir/dorman/rb603001?can=CPJE1043_20220228</a>
Jeonino E.STAFFFeb 28, 2022
Will this resorviour perfome the same functions  as the resouivor, needing replaced  on my 1999 Catillac DeVille?Tammy W.Jan 02, 2023
Best Answer:Hi Tammy, I'm pleased to assist you. No, this is a universal part and not vehicle specific. We have two coolant reservoirs compatible with the 1999 Cadillac DeVille. One is without the cap and the other with. Let me provide you with the two links below to choose among the options we have available and order while supplies last. I hope this is helpful. Enjoy your <a href="http://CarParts.com" target="_blank">CarParts.com</a> online shopping experience! Without cap (46% off) - <a href="https://www.carparts.com/details/Cadillac/DeVille/Replacement/Coolant_Reservoir/1999/REPC161309.html?can=CPGG4850_CSQA_20230102" target="_blank">https://www.carparts.com/details/Cadillac/DeVille/Replacement/Coolant_Reservoir/1999/REPC161309.html?can=CPGG4850_CSQA_20230102</a> With cap - <a href="https://www.carparts.com/details/Cadillac/DeVille/Dorman/Coolant_Reservoir/1999/RB603133.html?can=CPGG4850_CSQA_20230102" target="_blank">https://www.carparts.com/details/Cadillac/DeVille/Dorman/Coolant_Reservoir/1999/RB603133.html?can=CPGG4850_CSQA_20230102</a>
Grace G.STAFFJan 03, 2023
Will it fit 89 caprice?Fritz H.Mar 28, 2023
Best Answer:Hi Jude, I'm pleased to assist you. No, this is a universal part and not specific to the 1989 Chevrolet Caprice. This does not replace the original reservoir. This is an overflow tank, not a pressurized surge tank (coolant return system). If interested, click the link below to continue ordering at a discounted offer today, while supplies last. I hope this helps. Enjoy your CP shopping experience! <a href="https://www.carparts.com/coolant-reservoir/dorman/rb603001?can=CPGG4850_CSQA_20230328" target="_blank">https://www.carparts.com/coolant-reservoir/dorman/rb603001?can=CPGG4850_CSQA_20230328</a>
Grace G.STAFFMar 29, 2023
Will this fit a 2000 Lincoln Continental?Rebecca A.Dec 09, 2022
Best Answer:Hi Rebecca, I'm pleased to assist you. No, this is universal and not vehicle specific. We currently do not have in stock the direct-fit coolant reservoir compatible with the 2000 Lincoln Continental. Feel free to contact us again if you require any additional parts for your vehicle. I hope this is helpful. Have a good one.
Grace G.STAFFDec 09, 2022

Customer Reviews

Put one on a 1951 Chevy works great put the other one on a 1970 Super Bee V code forks great also you need to use self tapping metal screws
William H.
Purchased on Jan 14, 2023
Very happy with the parts and willing and ready to be working with you guys more
Robbie K.
Purchased on Apr 01, 2022
Universal Coolant Reservoir, 6 In. L X 6 In. W X 8 In. H, With Twist Cap
Fast, prompt service. I ordered the wrong size for my car.
Fast service
Dorrie W.
Purchased on May 08, 2023