Best Rated in Automotive Replacement Engine Thermostat Housings

Compare the most helpful customer reviews of the best rated products in our Automotive Replacement Engine Thermostat Housings store. These products are shortlisted based on the overall star rating and the number of customer reviews received by each product in the store, and are refreshed regularly.

Top rated products in Automotive Replacement Engine Thermostat Housings

4.9 | 102 customer ratings
97% of the ratings are 4-stars or 5-stars
Let me just say that the man behind this part is an amazing guy. I paid for expedited shipping and he went out of his way to contact me and see if the part made it to my doorstep on time. This is something I don't see many sellers do. This was greatly appreciated.

As for the part, I couldn't ask for more. This is a direct replacement for that horribly designed plastic housing. Yes, this housing is cast. So keep in mind that it does have casting imperfections that make the surface textured instead of smooth. You could always grind it down in steps if you want it polished. Personally, I put three coats of primer, color, and clear engine enamel to get it black like the thermostat housing was. That is just personal preference however.

In the box are an assortment of gaskets; a thermostat seal, a thermostat o
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By Tyler B
Fits very well, I bought these, thermostat, and temp sensor:
Stant 13649 Thermostat - 190 Degrees... https://www.amazon.com/dp/B000C8479U?ref=yo_pop_ma_swf

https://www.amazon.com/dp/B000CSW40Y?ref=yo_pop_ma_swf

The thermostat fits fine. As for the new temp sensor I had to use the o-ring that came with the metal housing. Everything fit well. I will update in a year and see how well it lasts. My previous plastic ones couldn’t last over 30,000. So hopefully this one lasts longer. I will update this post in a year and hopefully it’ll be going strong.

**************************************************

Edit July 17 2019: It has officially been a year and the thing is still going strong, no leaks or anything. Has so far lasted longer than the plastic one I got before from a local auto parts store. I’ve probably put around 20k miles so not that much of testing has been had. Will update later
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By Bder Khan
My best friend has a 2007 Mustang and a local repair shop told him his head gaskets were blown and was looking at a major money repair. I took a look at it and saw the problem immediately and ordered this aluminum thermostat housing kit. This kit comes complete with the lower and upper housings, 2 gaskets, and 3 "O"-rings...no need for gasket sealer at all. To make replacement easier remove the intake plenum duct and throttle electrical connector, then remove the 4 bolts holding the throttle body to the intake. Once the throttle body is out of the way replacing the thermostat housing is so much easier. Just make sure that you completely clean the flat mating surface where the housing bolts to the cylinder head. Also blow any debris and antifreeze out of the 3 bolt holes. There is a YouTube video of this procedure with this housing.
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By Gerry Walsh
4.7 | 151 customer ratings
94% of the ratings are 4-stars or 5-stars
When my wife's Durango started getting an engine error code related to coolant temperature taking too long to reach proper operating temperature, I did some research and found that the thermostat was the very likely cause. I purchased this Dorman thermostat at a great price compared to local options and after receiving it, I was able to install it in about 20 minutes. Love how Dodge made this thermostat so easy to get to and replace! This made me a hero in my wife's eyes once again! Well worth it! :)

Will update this review if we have any trouble with this thermostat.

If you found this review useful, please click the "Helpful" button! :)
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By John Shaw
Got read of my P0128 check engine code on my 2012 jeep jk
Easy install only took 20mins for the entire job.
You will lose some coolant, make sure to have it handy when youre done with the job
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By Luis
Perfect replacement for my wife’s 2012 Jeep Cherokee. Once installed the engine code stopped. It was easy to switch out the parts. Just took a brief YouTube video search and follow the instructions. You will loose at least a small amount of coolant so it would be wise to have a new bottle ready to top off your fluids. Plus after the install you’ll want to bleed the air out of the line. Again, easy to do with an online tutorial. The pet has been in over 6 months or so and seems to be working just fine still. The entire job was quoted to me from local dealers anywhere from $150-250 so this was well worth the money and effort to change out myself. Definitely a good buy.
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By J. S.
4.7 | 127 customer ratings
92% of the ratings are 4-stars or 5-stars
Thanks Chevy for making everything on this car a giant PITA to fix. Don't forget to order ACDelco 25192905 GM Original Equipment Throttle Body Heater Inlet Pipe with it, because it WILL break when you are removing it. Don't even think that you can remove it without breaking it. Just buy the damn thing now, so you don't have to search all your local dealerships for it and then pay $75 for it, because NO AUTO PARTS STORE HAS IT, and your wife NEEDS her car and cannot wait 2 days for Prime shipping all because you thought you would be able to remove it without breaking it. YOU WILL BREAK IT. EVERY TIME.
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By Johnk
Experience with the part:
The fact that this part is half made of plastic and is under constant pressure should make you feel uneasy. The reason that I needed to replace this housing was because the same type design was leaking from one of the screw housings. See below on what is not provided with this part. I don’t know how long this part will last! Replacement overall is an easy job to do, should take you between 1 to 3 hours to do. I broke the heater inlet pipe when removing it from the old housing and had to wait for one a few days. I also had to install twice because I didn’t replace the seals around the oil cooler pipe.

Steps:
Get these in addition to this part:
1- ACDelco 25192905 GM Original Equipment Throttle Body Heater Inlet Pipe (you’ll most likely break the old one when detaching it from the
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By MS
Installed in mid march it was very easy to install and worked for about 9 months. I just had an engine code come up in mid December that it has failed. Cheap part but not worth it if you have to change it every year or less.
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By Chris Rodak
4.7 | 72 customer ratings
95% of the ratings are 4-stars or 5-stars
honestly the best one for the price that i found that didn't have hideous chrome on it that immediately leaked, had extra ports that i was able to block, after tightening way more than i felt that should have been and pipe taping them.
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By Jacob A. Crabtree
Can't beat the price. One would be challenged to find a stronger casting. This water neck is HEAVY!! THICK aluminum base. I cannot see this housing to ever break or deform. Provided bung plugs came tight with no sealer. I removed the bungs and added sealer. Worked perfectly. I did touchup the outlet in two spots that had tiny burrs using a simple file. Super product on the cheap. Fits a 350 sbc perfectly.
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By Robert Schilling
It looks just like I expected, except the finish is slightly smoother than shown. The photo shows a gasket, I finally found the gasket loose in the box. There are two sensor ports in this housing, the smaller one is 3/8". The threads on the 3/8" port seem imperfect and I'm having a little trouble getting the fitting I bought to thread into the housing. I think those threads will work with a little WD40 and a longer wrench. Made in China
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By THEE MANN
4.7 | 43 customer ratings
93% of the ratings are 4-stars or 5-stars
This product is exactly like OEM and fits perfect to accommodate the outlet port associated with the thermostat housing location. Thank you!
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By Albert J.J. Mendiola
Worked great, fixed my leak.
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By Amazon Customer
Stamped made in China right on the front but it seems to be working just as it should. I don't know if the old one was bad but while I was pulling off the water pump I figured I might as well change it
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By master Irrigator
4.5 | 152 customer ratings
89% of the ratings are 4-stars or 5-stars
Installed it this morning, took me 45 minutes on a 2007 ford explorer XLT. So far so good, the sensor works, the thermostat works properly, and it came with all the gaskets. No leaks at the moment! Great product for the price, but I would ask that they pack them a little better. It was wrapped with 1 layer of bubble wrap, and the box arrived smooshed. Luckily the part wasn't damaged.
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By david bragdon
A third the price of the auto parts store, and works fine. Installed a week ago, no leaks, no problems.

Came with all needed seals and included the thermostat too. 20 minute job, hood open to close.
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By BooYaa
To install the thermostat housing without further disassembly of the electrical and cooling water connections, it is recommended to remove the thermostat head. However, the three bolts provided are not of the quality of the original bolts, so the thread on them was damaged and could not be used. Instead, I used the three original bolts on the thermostat housing and the problem was resolved.
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By Alejandro L.
4.6 | 52 customer ratings
91% of the ratings are 4-stars or 5-stars
OE replacement thermostat housing for GM 1.8 Lt. at an excellent price! In addition to the housing, I recommend purchasing an ACDelco 25192905 throttle body heater hose (it will break upon removal from thermostat housing) and a GM 55556547 oil cooler pipe gasket (housing doesn't come with this seal).
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By Mr. Magoo
Great fit for the 2013 Chevy Cruze LS easy to install great price thanks amazon fixed check engine light P0597
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By Brian
Worked great for just over 1year.. then no warning - same code appeared .. ac off due to high engine temp. Then gage pegs to COLD .. no leaks,replaced sensors “again” had code cleared..ran good as expected for over a week then Code tripped once again.. re did OBD Ii & same code..can squieze hoses and feel an hear coolant flowing through system..so figure must be thermastat stuck open..as code refering to time allowed by ecu for coolent to reach certain temp for normal operation..if not reached by factory set time the computer throws the code.. I cant entirely blame ACDELCO here..yet as they state its OEM REPLACEMENT so .. stupid is as stupid did .. and remains NO FIX to CHEVY GM Coolant Problems that have Contuined to Plage them !
1 Pro here is at least this casing is PARTIALLY metal.. I replaced original all plastic one with this
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By crash
product price & FREE Shipping. Details
4.9 | 21 customer ratings
100% of the ratings are 4-stars or 5-stars
I bought this thermostat housing to do the Inline Thermostat Mod for Land Rover Discovery 2 v8.

You also need:

Stant 45358. Thermostat
Gates 21719
Gates 23405

Basically that is all you need to do the mod. I won't get into the details of the mod as you can find them online.

You don't need the bleeder for the coolant system with this inline mod. The coolant system will self bleed with less number and simplified routing.

I drilled two 1/8" holes on the thermostat.

There may be some air trapped in the heater core but that cannot be completely bled unless you have vacuum fill tool for the coolant.

I would idle the car and keep the coolant bottle high and you will see bubble working itself out of the system. Keep a watch on the coolant reservoir over the next few hundred miles.

I used to hit 220 degrees but now I maintain under 190
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By Michael K.
Installed inline on the upper radiator hose when my vehicle was having a very strange overheating problem and the stock thermostat in the block (lower radiator hose) was not getting enough hot coolant from the coolant bypass loop in the block due to blockage. Solved my overheating issue and was extremely easy to install. The thermostat gasket included (a rubber like seal) worked like a charm first time with no leaks. You'll need an old school chevy small block style thermostat to work with this, it does not come with it. Your stock thermostat probably wont work either unless it's a small block chevy.
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By Venny
This unit will be installed on a 2004 Chevy trailblazer 4.2L i6 that 5 other stock thermostats have fail there opening to soon @ kicking the 0128 code engine service light its 1970s @ 80s technology @ i no it will work this item is worth its weight in Gold will update as how it works.
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By Amazon Customer
4.6 | 49 customer ratings
93% of the ratings are 4-stars or 5-stars
I purchased this to replace another thermostat I'd just purchased directly from a Dodge dealer.
It cost me nearly half as much as the Dodge thermostat, but has so far outperformed what I think was a faulty assembly from Dodge (good luck getting a refund from a dealership!).
I only recently installed it, so I can't speak to the longevity; however, the original OEM unit lasted 6 years & 115,000 miles so I don't expect to have a fair comparison any time soon.
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By TinKnight
Perfect fit for my 2012 Dodge charger. I have the v6 pentastar 3.6l and my old one was leaking. Can't beat this price and it came with the gasket. So far so good!
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By EkV
Installed on my vehicle and so far it’s going great. My old one had a crack on the housing and was leaking. This new one is holding well. I’m overall very satisfied with the product.
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By Daniel Ramos
4.5 | 81 customer ratings
88% of the ratings are 4-stars or 5-stars
I have a 2001 Ford Explorer XLT with the 4.0 SOHC V6. The original thermostat housing shockingly made it to 210k miles before letting go (they were known for failing well under 100k miles on these motors). I researched many hours for a very cheap yet good thermostat housing and this one was the cheapest one I could find anywhere online. I paid $18 for it. Most sites including Amazon says this style thermostat housing doesn't fit the 2001 4 door models, but it does. I'm impressed with the quality of this unit and will be buying another one for my 1997 Explorer SOHC that also needs one. Other reviewers noted that the top thermostat cover where the hose connects is different....the company must've corrected this issue recently because the one i received was a direct fit, i didn't modify anything or reuse any old parts from the bad thermostat
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By S. Allen
Part does fit 4.0 Explorer and all bolts line up, only issue is save your old thermostat cover as the new cover that comes with this item sits much taller and and once its connected to upper radiator hose, it rubs and presses up on throttle body box thus creating a leak by thermostat area even if bolts where tightened past recommended torque. Other than that, a week later no leaks and is holding up. Thanks!
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By rog G.
This is a very cheap price for the housing, then one I got had a bad thermostat, but its cheaper than buying a 60-150 dollar one. I bought is for a 2001 Ford Explorer Sport, and yes the top out does not work for explorers made after 7/24/2000, so I had to buy the top outlet separate. I got it in there and it works okay, I needed a new thermostat though. The quality is okay but the outlets are a bit rough.

Edit: made it 3665 miles before it started leaking. I'm just going to buy a metal thermostat housing from Simons, instead of messing with plastic ones again.
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By John Holt
4.5 | 69 customer ratings
85% of the ratings are 4-stars or 5-stars
The previous thermostat housing was corroding away, so I decided to replace it to get a better seal to the top radiator hose. This one was one of the least expensive options. Despite that, it was a good fit, the flange was flat and the gasket sealed. It has a decent thickness of aluminum, to give it a lot of time before it corrodes away. As someone else pointed out, if you don't need the extra bypass port (I didn't), take out the plug, put plumber's tape on it and screw it in tight. Finally, once you get all the leaks fixed in your cooling system, buy a few gallons of distilled water to mix the antifreeze. Tap water will corrode and plug up your system.
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By Victor Wren
Arrived with tons of casting flash both inside and out. Had to spend 20 minutes with a Dremel just to clean up the hose mating surfaces. Had lots of sharp edges and high spots that would have caused leaks. This thing is NOT made of steel. It's made of some non-magnetic material. No biggie I guess as long as it lasts. WARNING: DO NOT use the gasket that comes with it. The provided gasket is absolute crap and it WILL leak. Also remove the brass plug on the top and teflon tape it BEFORE you install. It WILL leak also if you don't.
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By 88 MPH
1985 f150 302 EFI. In typical dorman fashion this is an incomplete unit, the pipe plug has no thread sealant on it but is installed. If they want to ship it that way to save .02c then they should leave the plug out or put a dab of sealant on it and tighten it. It's like this now with 85% of parts our shop gets from this company. They used to be the industry standard.....now.....there just a chinese lap dog.

Professional Master Mechanic and shop owner 1988-Present.
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By Albatross
4.5 | 52 customer ratings
91% of the ratings are 4-stars or 5-stars
After watching a brief video on YouTube, I had the hoses off and disconnected and 2 of the 3 bolts removed. 3rd bolt was challenging as the hose clamp blocked the socket from going on the bolt. Once I got the 3rd bolt out, I removed the lower hose and installed the new assembly. Adjusted the hose clamp so not in the way for next time. All works well. For under $25, it is hard to justify paying $85 for the GM part (which I hear is faulty anyhow). Even if it lasts a year, I’d buy another. I’ll update this should the part fail prematurely.
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By PeteyG
It works and it fixed the problem. I bought one from a different place about 2 years ago. It almost cost twice the price and it didn't last very long. I used this on a 2012 Cruze 1.4 L. It fit perfect.
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By Paul
My engine is not getting up to temperature. I thought the installed thermostat had broken its retainer tabs and was stuck open. As it turned out the ADC thermostat that had been installed for 18 months had not broken. I installed the New Yall thermostat and replaced the used coolant with new Dexcool. The engine still does not get up to temperature but does not appear to be leaking coolant. Will have to use electric space heater for morning defrosting. Will update when problem solved and when New Yall thermostat plastic tabs break. It is helpful to place a towel under the thermostat when installing bolts so as to catch them in case of dropping. Torque screws to 71 inch-pounds and ensure water pump mating surface is clean. Included gasket/seal seems to be same as ACD.

Edit 1-20-20: Used E10 socket for thermostat bolts.
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By Robert Bumbalough
5.0 | 14 customer ratings
100% of the ratings are 4-stars or 5-stars
I went from an 86 305 to a 96 350 Vortec with 91 Suburban Accessories. This housing was needed to use a 91 Suburban upper radiator hose on the stock G-Body radiator. The "old style" housing would not work at all as the hose touches belts.
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By CoelacanthsKill
Factory fit replacement. I've used the other aftermarket thermostat housings with the "O" ring seals and this Dorman has given me back the OEM fit and seal of the expensive Delco.
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By Ralph L.
Replacement parts
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By billy ray gilson
5.0 | 13 customer ratings
100% of the ratings are 4-stars or 5-stars
I broke the original one of these on a car I was doing a timing belt service on for a friend. I think I may have had the thermostat misaligned when I was tightening the fasteners.

Amazon to the rescue, one of the main reasons I selected this one was because I could get it overnight and I was in a hurry to finish the job. Normally I am leary of the brand Dorman as they tend to be low quality. But in this case, it seems like a decent part and it did the job. I figured a chunk of metal like this is probably hard to screw up, and that turned out to be the case. It seemed machined well enough, and it did the job with no leaks. The included gasket seemed to work just fine too.
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By Garrett
went on easy as it was an exact fit.
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By Bill Burnam
Perfect fit for an 07 Hyundai Tiburon 2.0l. it's nice that it comes with a gasket, too. Arrived quickly and is well priced.
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By Nate K
4.8 | 17 customer ratings
100% of the ratings are 4-stars or 5-stars
My car was getting heated up every mile after I put this man it Works fine install in no time and I don’t have the heating problem anymore. I recommend it
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By Ramiro Ramos
I purchased this for my 2010 Chevrolet Aveo. I was so surprised to see how easy this was to install. The quality is top notch. This thermostat looks as if it was manufactured by GM themselves! Excellent!
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By Mr&MrsCHHASH
By Keith Nick Sandlin
product price & FREE Shipping
4.9 | 14 customer ratings
100% of the ratings are 4-stars or 5-stars
Had a leak with the factory housing after 170,000 miles. Tried replacing the thermostat and still had a leak so replaced the housing and that fixed the leak.
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By Mike Whitmill
As described fits my Wrangler 2010 JK perfectly
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By Skeetorius
Perfect replacement, what more can you say.
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By John M.
4.4 | 49 customer ratings
86% of the ratings are 4-stars or 5-stars
It’s a thermostat. It regulates coolant temperature like it’s supposed to. Ease of install will depend on your vehicle, but not much to it.

Installer note: it’s not the thermostat’s fault that the housing it bolts into is plastic. Find your torque specs (mine was 71 inch pounds) and use a torque wrench and you won’t break anything. Not a bad idea to replace any and all gaskets attached to any parts you need to remove in the process. They’re like $2 a piece. Have fun everyone!
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By Ryan Dawson
Fast, perfect fit, and even better than described. Came with the sensor which I didn’t think was included. Awesome! Will recommend highly and use company again.
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By tuna833
I read every review possible on this part. I watched several videos too on how to accomplish this task of installing this part. Every tutorial and review said don't over tighten the nuts, don't over tighten!!! It will crack the housing. Ok fine. I take the old one off (which is plastic) and put this new one one.....snug it up with my fingers so I don't over tighten. Doesn't seal at all when I Start the car, coolant spewing everywhere. so I use a wrench to tighten a little more. Again. Coolant everywhere. Zero seal. Use the wrench to tighten a little more..... CRACK. There goes the housing. Now have to replace the housing. I did this on a 2013 Sonic. The fact that the thermostat and housing are plastic is a joke. But what was also
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By Kurt L
product price & FREE Shipping
4.6 | 21 customer ratings
94% of the ratings are 4-stars or 5-stars
Received this super quick and was exactly what I needed.
Thomas
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By Amazon Customer
The included gasket was not needed as the old gasket was still in place and looked good. The new thermostat fit correctly and is working good as new.
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By CZ P10C 1954
Fits perfectly just like it should
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By David Walker
product price & FREE Shipping
4.6 | 21 customer ratings
92% of the ratings are 4-stars or 5-stars
The item is as described "genuine" it has all the part number casting numbers in the plastic that are genuine numbers It also looks identical to the old one that i removed. Good product for a good price
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By BParka
Never had any problem after install these
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By nelson
Perfect fit as it is a dealer made part!
Fast shipping as well
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By Jason
4.4 | 41 customer ratings
82% of the ratings are 4-stars or 5-stars
2015 Chevy Sonic LT
Nearby auto parts store wanted $98 for this part. This is an upgrade to aluminum from the oem plastic thermostat. Took maybe 15 minutes to install. Fit was tight on the left side where it makes contact with the block. I used a long wrench and tapped it into place. There's a video on youtube to help with the install. Don't hesitate on buying this. My car threw the code for low coolant temp. There is a gasket inside the oem that had separated and lodged inside keeping the thermo open all the time.
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By Erich Hasenstab
Almost all GM engines with 1.8l engine have or will have this part replaced... It is a common failure. Some times it is enough to replace only the thermostat with the housing. Often, you better get the whole thermostat assembly with the water distribution part as the plastic original part may be very old and break while replacing. Good value and it lasts longer than the original.
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By S. Lee
Failed 2 days after the return period. Replaced with a $40 unit from Rock auto made in the usa. No trouble yet.

You get what you pay for. 2x the work, 2x the mess, out the "cheap price" altogether.

Wish I could rate Zero stars
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By Regular Guy