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Coolant Reservoir

 Shop Coolant Reservoir

Three Easy Steps to Installing a Coolant Reservoir

The coolant reservoir is a tank that contains the excess coolant, which is a liquid used as a cooling agent in your car's cooling system. Usually, the reservoir is just a clear plastic bottle found near the radiator-to see it, you can follow the pipe of the radiator and you'll see the tank. The coolant reservoir is attached to the radiator and the engine's hoses. The cap for the filler is also found there, so you'll just have to pour the liquid into the reservoir instead of pouring directly into the radiator. However, if the tank breaks and the coolant leaks, your car's engine will be prone to overheating. Should this happen, immediately replace the old or faulty coolant reservoir with a new stock.

Required skill level: Novice

Needed tools and materials:

  • Socket wrench
  • Philips screwdriver
  • Drip pan
  • Locating the coolant reservoir

    Pull the hood release lever underneath your car's steering column on the driver's side. After that, push the hood all the way up until it's fully open, and prop it up with the tension bar. Locate the clear coolant reservoir positioned on the passenger's side of your car. It is next to the clear washer fluid tank but is larger than that container. In some cars, the reservoir is found in the back of the engine on the driver's side right next to the wheel well.

    Removing the old coolant reservoir

    Using a socket wrench, take off the three bolts that attach the tank to the vehicle. Then, place a pan underneath the coolant reservoir to catch the liquid coolant that may drip out when you remove the component. After setting the pan, take out the clamped hose from the bottom of the coolant tank. Detach the two clamps that hold the front of the coolant reservoir to two smaller hoses. Remove the tank from the car.

    Installing the new coolant reservoir

    Place the new coolant reservoir where the old component used to be. Reattach the bolts that fasten the part in place. Then, reconnect the hoses by fastening the clamps. Once everything is connected and secured, refill the tank with a new coolant until it reaches the fill line. Now that everything is done, you may now close the hood.

    Coolant Reservoir Articles

    • APA/URO vs. Transdapt: Which Brand Will Win the Battle of Coolant Reservoirs?

      Should you go for an APA/URO coolant reservoir or a Transdapt coolant reservoir? That's the question that we're going to answer with this guide (or at least help you make a more informed decision). Read on to find out which of the two is the better coolant reservoir brand.

      Product Range

      Transdapt has a very limited range of products. It's because the brand only offers stainless steel coolant reservoirs. On the other hand, APA/URO coolant reservoirs can be made of stainless steel or plastic. For that reason, APA/URO reservoirs are also available in a wider variety of shapes, sizes, and colors.

      Winner: APA/URO


      Obviously, stainless steel is more durable (and therefore better) than plastic. And as said above, both APA/URO and Transdapt offer stainless steel coolant reservoirs. That means that no brand is better than the other in this category.

      Winner: Tie


      Both APA/URO and Transdapt offer limited warranties. For that reason, this category mostly comes down to the length of the said warranties. A Transdapt coolant reservoir comes with a one-year limited warranty. An APA/URO coolant reservoir, however, comes with a two-year limited warranty. With those said, it's fairly obvious which brand takes this category.

      Winner: APA/URO


      This may be the deciding category for you. We won't be including APA/URO plastic coolant reservoirs (which are usually priced around $35 to $50) in this comparison, though, since Transdapt doesn't offer plastic coolant reservoirs. So yeah, we'll be pitting the price of both brands' stainless steel coolant reservoirs.

      APA/URO stainless steel coolant reservoirs can cost as much as $160. That's basically more than a hundred dollars pricier than the brand's selection of plastic coolant reservoirs. Your wallet will surely feel much lighter after purchasing an APA/URO stainless steel coolant reservoir. That won't be the case, though, if you go for Transdapt stainless steel reservoirs. It's because these are available for as low as $60. Even if you're not a math whiz, it's pretty obvious that you can save a lot by choosing Transdapt over APA/URO.

      Winner: Transdapt

      The Verdict

      APA/URO is more popular than Transdapt, but both are reliable coolant reservoir brands. APA/URO products come with a longer warranty; however, Transdapt offers its products at a much more affordable price. Because of that, you may want to go for Transdapt. But either way, you really can't go wrong with the brand you choose.

    • Installing a Coolant Reservoir Made Easy

      The coolant reservoir isn't just any plastic bottle. It plays a vital role in your vehicle as it's tasked with the function of holding excess antifreeze fluid. If you need help in installing one, read our guide for it.

      Required skill level: Novice

      Needed Tools and Materials





      Park your car on a level surface (preferably in an area where there's an ample amount of light so that your work would be easier). To make sure that it stays in place, activate the parking brake and chock the wheels. Also, don't start working until your engine has cooled down.

      Positioning the reservoir

      Once you're with the preparations, open the hood of your car. Now, you need to find where to position the coolant reservoir. The reservoir's placement varies from vehicle to vehicle, although you can usually position it near the air cleaner. Installing it in its designated location shouldn't be that difficult as all you have to do is to fasten it in place with a wrench or a screwdriver. You may have to remove some components (the air filter housing is most likely included) for the meantime in order to install the reservoir, though. Be sure to remember which goes where as you'd have to reinstall them later on.

      Connecting the radiator hose

      After securing the coolant reservoir in place, connecting the radiator hose to it is your next step. It's pretty obvious where the hose should go. Grab your pliers or your screwdriver since you'll need it to fasten the hose clamps.

      Reinstalling the components that you took out earlier

      Basically, you're done with the installation process. What you need to do now is to reinstall the components that you took out earlier (again, such as the air filter housing). Hopefully, you remember which part goes where. Putting back the components shouldn't give you trouble at all.