* Disclaimer: OveReview is reader-supported. We earn commissions from qualifying purchases
Dorman 603-383 Engine Coolant Reservoir for Select Buick/Chevrolet Models

Dorman 603-383 Engine Coolant Reservoir for Select Buick/Chevrolet Models

Dorman 603-383 Engine Coolant Reservoir for Select Buick/Chevrolet Models
$ 17.21

Score By Feature

Based on 713 ratings
Value for money
9.38
Easy to install
9.72
Sheerness
9.68
Durability
9.48

OveReview Final Score

How Our Score Is Calculated

Product Description

Replaces the original part with one that is built to the same specifications as the original
The best option - designed to fit seamlessly into any environment
Construction made of durable materials that can withstand the heat and vibration under the hood
Designed with 100 years of experience in the automotive aftermarket, it provides reliable performance
If you’re unsure about whether this part will fit your vehicle, you can enter your make, model, and trim level at

Questions & Answers

Do you get the metal clip with it?

A metal clip is not necessary.

Are these codes compatible with 2017 Hyundai Accents?

This vehicle does not have one listed by Dorman.

Can this model be used with the 2008 Chevrolet Cruze?

The period covered by this is GM is selling 2016 Chevrolet Cruze models.

This part is going to fit a 98 Chevy S10 Blazer with a 4.6L engine. How do you drive a 3 engine 4 wheel drive vehicle?

There is no need for this for 2012 to 2016 chevy cruzes

Selected User Reviews For Dorman 603-383 Engine Coolant Reservoir for Select Buick/Chevrolet Models

The answer is yes The Chevrolet Cruze ECO was produced in 2012
5/5

I’m super impressed with the quality of the tank, which is what you would expect from a Dorman product. It came with both the reservoir cap and the tank itself. In both upper and lower drain ports, a steel insert has been installed. It is the Amazon parts guide that I am having trouble with. It was clear that this would not work with my 2012 Cruze ECO, and they pointed me in the direction of other products from other brands that would cost almost twice as much. In other words, I took a risk. The item was an exact fit once I purchased it. For installation to be smooth, the battery needs to be loosen, and it needs to be moved forward in order to be seated. If you want to remove the lower clamp, be sure you have a good pair of pliers. There's no doubt that this clamp is strong. The rest of the install went smoothly after We wish you all the best.

Olive Clarke
Olive Clarke
| Jul 30, 2021
For the conversion of my system to an expansion tank, I used this
4/5

In other words, my truck was built around the time when they were introduced, but it wasn't actually used with them. Having an overflow tank on top of the cap, it had a regular cap. In the end it worked out fine, but after changing my radiator for one with a bit less capacity I discovered the system wanted to purge and was not drawing back in as it should. The increase in elevations has exacerbated this situation to such an extent that the system will also begin to boil. This system also has a swing check valve on the overflow tank, so that if the system must be purge, the water will flow back into the tank at the top. In addition, it's created a great place for any air to escape from the system, and it adds a little capacity as well. It might be nice if there was a nozzle where the system could purge, but honestly I don't think that will be an issue because it should only purge a few particles of air at a.

Angel Gill
Angel Gill
| Jan 08, 2021
You don't have to do it even if it's not necessary
5/5

Even if you do not need to replace your original reservoir, I highly recommend doing so. Unlike the stock ones, the one we have here is made in such a way that it is far superior. This is better because plastic is better, and where the hose clamps go, there is a metal fitting in them that prevents it If I can install it correctly with my nails so could you lol I am female, so I am also a female I highly recommend this.

Kylee Compton
Kylee Compton
| Jan 19, 2021
The fact that I failed to get this before all of this went haywire makes me angry
5/5

Introducing the title. When my car began to overheat, I kept filling the coolant every time the warning light came on, until the water pump, pipe, and thermostat all failed. The shop never checked the reservoir, so I spent way too much on repairs, only for the overheating problem to come back again when they fixed everything else.
I purchased an installation kit on Amazon for $18 and watched an installation video on YouTube for 5 minutes before I could fix There have not been any overheating issues since then. You will see that this part appears in practically every article and video regarding the Cruze problem, so just buy it right away and save time and money.

Lilianna Welch
Lilianna Welch
| Oct 16, 2020
This is a great OEM replacement
5/5

I found this to be an excellent replacement for the OEM part and it solved the problem for me. It is evident that this part is considerably better engineered since steel reinforcements have been added to the areas subject to the demands of It is a product I would consider purchasing again, but I know I will not Here are some installation tips YouTube is a good place to start. For Chevrolet Cruze owners, there is a video tutorial on how to install the part. Depending on how much coolant your system uses, you may want to perform a coolant flush. It is important to note that leaking can cause contaminants to enter the system when the system is not sealed. The video below will show you how to accomplish this step by step as well. You can find it by looking for Michael Borders shows us how to DIY. For about $30 to $50, you can flush the coolant yourself Original OEM (long life) cooling fluid for the 40.

Addisyn WESTON
Addisyn WESTON
| Sep 24, 2020
Get it at a good price, it beats original equipment manufacturers
5/5

As a result of the OEM reservoir being cheap, my Cruze began to leak and only leak when under pressure (a trickery to find when cold). There is no doubt that this one is of higher quality. As a result, it would be difficult to be worse than the OEM That is the first time I have ever seen an overflow tank get a pinhole leak, but I bought a cheap Cruze, so it is what it is. The installation process was pretty straightforward.

Forrest Joyce
Forrest Joyce
| Aug 17, 2021
It is a holy moly
5/5

You know that your Chevy Cruze's cooling system is a piece of crap if you own one. A leak had manifested in my reservoir, so I decided on this Dorman product. Guess what happened? Metal reinforcements are available at the crack area of my OEM product. Moreover, it has a reasonable price. It's hard to go wrong with this. The Dorman fan in me has just been sated.

Mohammed Keith
Mohammed Keith
| Nov 03, 2020
The one you are looking for is this one
5/5

You should use this coolant tank in your Chevy Cruze if the coolant tank has failed. It has been reengineered with extra support at the points of common malfunction over the OEM GM tank, and it is much less expensive than the OEM tank from the dealer. It is easy to change the battery youtube has dozens of videos on how to do so.

Kenneth Zhang
Kenneth Zhang
| Mar 30, 2021

Related Products For Dorman 603-383 Engine Coolant Reservoir for Select Buick/Chevrolet Models