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Dorman 902-1001 Engine Coolant Thermostat Housing

Curated from 74 real Reddit conversations

Refreshed on: December 5, 2024

Dorman 902-1001 Engine Coolant Thermostat Housing

Brand: Dorman

Price: $13

Snoop Score:

5.8

Sentiment

6.6

Popularity

5.8

Technical

5.0

Buy on Amazon for $13 See All Thermostat Housings Reviews

As an Amazon Associate, I earn from qualifying purchases.

Snoop's Take

The Dorman 902-1001 Engine Coolant Thermostat Housing is designed as a direct replacement for original housings in select Ford, Lincoln, and Mercury models. This durable part is built to endure extreme temperatures while preventing leaks, making it a reliable choice for vehicle maintenance. Consumer feedback highlights several strengths of the Dorman thermostat housing, particularly its affordability and effective performance compared to OEM parts. Many users have expressed satisfaction with its installation process, noting that it was a straightforward "direct swap" and that they have experienced no leaks after installation, stating, "I never had to use a drop of silicone for the housings or the crossover pipe and no leaks at all." Overall, the Dorman 902-1001 is highly recommended for those seeking a cost-effective and reliable replacement thermostat housing. While some users have raised concerns about the durability of plastic versions, the positive sentiment towards Dorman's aluminum options suggests a trustworthy alternative for preventing leaks.

Not for you? Check out our other rated Thermostat Housings

So far so good.
Positive Feedback

Don't really see too much value in the housing. Never had a housing go bad.
Negative Feedback

5.8

Dorman 902-1001 Engine Coolant Thermostat Housing

Buy on Amazon for $13

Routine Maintenance Replacement

8 / 10

Performance Upgrades

7 / 10

OEM Restoration Projects

5 / 10

Universal Retrofits

6 / 10

See how this compares to all Thermostat Housings

What it does well!

Key strengths users can’t stop talking about.

Affordable alternative to dealer parts

“So far so good.”➕

“Thermostat housings? Which do you recommend and why? And how long has it lasted you?”➕

“I went with an A-Premium aluminum thermostat housing and haven't had any leaks in about 5k miles, so I'm past the bad reviews milage where it just didn't seal at all.”➕

“I've driven 10Kish miles since with no issues.”➕

Dorman parts effectively address OEM issues

“They are basically the only company left that make's good parts for this car.”➕

“Personally I am glad they are around making what they make.”➕

“If I was going to get a plastic housing and thermostat I would certainly use oem / motorcraft.”➕

Decent pricing for replacement parts

“the Prices are decent enough to make it not seem like they just want to gouge people for the privilege to have decent parts for their cars.”➕

Easy direct swap installation

“It’s was a tight fit getting it in there but was pretty straight forward direct swap.”➕

No leaks reported with other housings

“I never had to use a drop of silicone for the housings or the crossover pipe and no leaks at all.”➕

Positive recommendation for use in similar models

“I would highly recommend”➕

Affordable replacement option found on Amazon

“Cracked thermostat housing on '91 Suzuki Carry So this weekend I was replacing my radiator and thermostat in my carry, and I torqued down the bolts on the upper thermostat housing too hard and cracked it :(”➕

“I wish measurements would be posted.”➕

Dorman offers aluminum version as an alternative

“Motorcraft for a normal replacement, dorman makes an aluminum version.”➕

“Forget the plastic - GET THE ALUMINUM. Money well spent.”➕

Dorman is a reliable choice for thermostat assemblies

“Some cheap knockoffs have bad seals. Dorman or acdelco professional series is the way 2 go.”➕

Metal housings prevent leaks

“Yes, the metal water outlet (thermostat) housings will prevent this problem from happening again.”➕

“Make sure it comes with a new sensor. Metal is probably better.”➕

Where it needs some work!

Areas to watch—feedback on possible improvements.

Limited perceived value in the housing

“Don't really see too much value in the housing. Never had a housing go bad.”➕

Previous experience with leaking or failure

“Mine actually went bad. Tiny pin hole. Buy a new one, naw. JB weld to the rescue!”➕

Plastic cracks over time and leaks

“Seems like all the plastic ones crack.”➕

“I replaced three before getting the aluminum one.”➕

“Get the aluminum one. DO NOT install a plastic thermostat housing. It will always leak.”➕

Concerns about sealing with metal housings

“Sounds like yours is stuck open.”➕

Concerns over plastic housing durability

“The only thing i hope they get around to making for the LS is a replacement for the plastic Thermostat housing, as that is THE biggest failure point on that car.”➕

Inconsistent quality for non-problem-solving parts

“Dorman has a few good parts. Usually, when they make something that's intended to solve a problem with an OE design, they're solid.”➕

Concerns about durability of plastic housing

“Dorman, from my experience, is not a reliable brand”➕

Previous experiences with leaking issues

“My MITZONE is sitting in my trunk because ai can't get it to seal and haven't had time to 'fix' that yet.”➕

Concerns about plastic housing durability

“Unreliable plastic thermostat housings for the 2014 1.4 lt, is there any sort of thermostat thats available to buy anywhere that has a stronger housing, maybe one out of metal?”➕

Plastic replacements are not recommended due to durability

“Do not get the plastic replacement. Find the alluminum one.”➕

Frequent leaks reported with plastic housing

“Have installed same new 2013 sonic 1.4 thermostat housing (from Amazon) twice now and it leaks right where chrome steel pipe connects w/ 2 bolts at front of housing.”➕

“Replacing individual pieces is asking for it to leak because of the loose tolerances/cheap materials.”➕

“A better quality part might be the solution.”➕

Compare On All Talked About Dimensions

Product Name	Price	Score	See Details	Buy Now
KAKO Thermostat Housing Assembly for Ford Explorer & Mercury Mountaineer	$25	8.3	Details	Buy
Dorman 902-689 Engine Coolant Thermostat Housing	$4	7.2	Details	Buy
A-Premium Engine Coolant Thermostat Housing Water Outlet	$17	7.0	Details	Buy
Dorman 902-1010 Engine Coolant Thermostat Housing	$7	6.7	Details	Buy
Dorman 902-2081 Engine Coolant Thermostat Housing	$11	6.1	Details	Buy
PQY Swivel Neck Thermostat Housing for K Series	$32	6.0	Details	Buy
COOL STAR Engine Coolant Thermostat Housing 2782000815	$82	5.9	Details	Buy
Dorman 902-1001 Engine Coolant Thermostat Housing	$13	5.8	Details	Buy
QLZOZB Engine Coolant Thermostat Housing Case with Gasket	$16	4.5	Details	Buy
General Motors Genuine GM 12597172 Engine Cooling Thermostat Housing	$99	3.1	Details	Buy
Acupress Engine Cooling Thermostat Housing Replacement	$22	2.2	Details	Buy

Core Power Plays

The specs and strengths that make it shine.

Discussion on using aluminum vs. plastic housings

“One of my JKs has been throwing the thermostat rationality code recently, and I'm torn between trying one of the less expensive aluminum housings or trying to track down a Mopar plastic one.”➕

“I think I’d rather go with the more robust material.”➕

Discussion on collecting OEM parts

“And yes I seriously have kept them.”➕

Discussion on alternatives to plastic housings

“Easy day:”➕

Discussion on using metal vs. plastic housings for durability

“Go with the all metal housing which should be more durable in the long run.”➕

Hidden Hero Hacks

Unexpected tricks and side‑door uses you’ll love.

Debate on optimal temperature settings for thermostats

“the temperature that they open at is lower than the OEM temperature.”➕

“Running slightly cooler is not a bad thing.”➕

Buyer’s Cheat Sheet

What to check before you click ‘Add to Cart.’

Possibility of replacing just the thermostat

“Some people have been able to just replace the thermostat and keep the same housing.”➕

“I put the new one on at the same time.”➕

Discussion on best practices for installation and sealing

“Make sure the mating surface to the seal on both the thermostat and housing is clean and flat.”➕

Advice on timing for installation based on weather

“Getting a replacement for that will cost under $30 from your local auto zone.”➕

Mention of Motorcraft as a preferred brand for replacements

“Motorcraft for the housing, thermostat, and sensor.”➕

“I've said it before, and I'll say it again. You ain't a 4l v6 ranger owner if you haven't done this.”➕

Discussion on finding replacement o-rings for installations

“Me and my dad went to O'reileys, they looked up various o-rings and ordered them next day and we changed it out”➕

Mention of needing additional parts like hose clamps during replacement

“Idk if it helps when I replaced my thermostat housing I hade buy a new hose clamp”➕

Cautionary Callouts

Know the pitfalls before they catch you off guard.

Common issues with thermostat replacements

“It’s a common problem that only costs $6 to fix.”➕

Mention of difficulties in replacing specific parts

“Complete PITA to replace.”➕

Discussion on longevity of plastic housings

“I did the motorad ta2062s, original plastic one lasted 350k kms”➕

Discussion on common failure rates of plastic parts

“Fate decided that it was time for it to crack in my wife's Pacifica lol.”➕

“It is only a matter of time before these parts fail.”➕

OEM parts may be more reliable than aftermarket options

“If the part isn't leaking it's only as good as the heater installed in it.”➕