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Top Engine Cooling Thermostat Housings

Curated from 277 real Reddit comments and discussions across 11 products.

Refreshed on: April 17, 2025

Snoop’s Take

Thermostat housings live and die by fit and materials. Winners nail tight seals with aluminum construction and precise OEM specs, sparing you from mid-drive puddles and epic overheating. The savvy crowd champions direct-swap reliability, cost-effective pricing, and broad vehicle compatibility. Losers flex flimsy plastic bodies, generic fitments, and half-baked designs that crack, leak, or stick open for lousy fuel economy. Beware vague listings and sketchy branding—those are your red flags for untold headaches and repeat purchases.

Top Considerations Before Purchasing

Metal Over Plastic - Aluminum housings resist cracks and leaks unlike cheaper plastic versions.
Check Fitment Details - Double-check vehicle make/model trims to ensure direct replacement and avoid returns.
OEM vs Aftermarket Quality - OEM parts cost more but deliver consistent long-term reliability over budget alternatives.
Seal It Right - Use correct gaskets and torque specs to prevent post-installation coolant leaks.

All Products that we Rated

Our Winner
OEM Restoration Projects
KAKO Thermostat Housing Assembly for Ford Explorer & Mercury Mountaineer
8.3
KAKO Thermostat Housing Assembly for Ford Explorer & Mercury Mountaineer
Reddit Feedback
U
Can't go below 74 Pressing the down arrow will do nothing once it has reached 74.
U
From what ive read I will lose some coolant, but if its alot, then ill drain it properly.
U
You don't need to drain all of the coolant, no. Just replace what falls out when you pull the hose off to do the thermos...
Snoop Score Breakdown
Sentiment
10.0
Popularity
10.0
Feautures
7.9
✅ Recommended
Our Runner Up
Routine Maintenance ReplacementPerformance UpgradesUniversal Retrofits
Dorman 902-689 Engine Coolant Thermostat Housing
7.2
Dorman 902-689 Engine Coolant Thermostat Housing
Reddit Feedback
U
So far so good.
U
Is the Dorman all aluminum water pump better than the oem? Does anyone have any experience?
U
He said he doesnt recommend retail brand parts (Autozone etc) due to durability breaking within the year in general
Snoop Score Breakdown
Sentiment
6.9
Popularity
6.3
Feautures
7.1
✅ Recommended

Other Products the Community Recommends

OEM Restoration ProjectsUniversal Retrofits
A-Premium Engine Coolant Thermostat Housing Water Outlet
7.0
A-Premium Engine Coolant Thermostat Housing Water Outlet
Reddit Feedback
U
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 re...
U
He said he doesnt recommend retail brand parts (Autozone etc) due to durability breaking within the year in general
U
Do not get the plastic replacement. Find the alluminum one.
Snoop Score Breakdown
Sentiment
6.7
Popularity
4.0
Feautures
8.5
✅ Recommended
Routine Maintenance ReplacementPerformance Upgrades
Dorman 902-1010 Engine Coolant Thermostat Housing
6.7
Dorman 902-1010 Engine Coolant Thermostat Housing
Reddit Feedback
U
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 re...
U
I replaced my thermostat housing with a cheap aluminum Mitzone one from Amazon when I first got the car and I've driven ...
U
The issue I had with my aluminum housing from Dorman was the casting for the throttle body heater line on the top meant ...
Snoop Score Breakdown
Sentiment
6.9
Popularity
7.7
Feautures
5.6
✅ Recommended

Products You Will Return...

Acupress Engine Cooling Thermostat Housing Replacement
2.2
Acupress Engine Cooling Thermostat Housing Replacement
Reddit Feedback
U
My uncle told me that it'll only cause worse fuel economy.
U
This is the main issue with a stuck open thermostat.
U
Your car is meant to be ran at operating temperature.
Snoop Score Breakdown
Sentiment
0.0
Popularity
0.0
Feautures
4.7
❌ Not Recommended
OEM Restoration Projects
General Motors Genuine GM 12597172 Engine Cooling Thermostat Housing
3.1
General Motors Genuine GM 12597172 Engine Cooling Thermostat Housing
Reddit Feedback
U
The Chevy Cruze, particularly the first-generation model I own, often receives a lot of criticism.
U
This car is accessible for anyone willing to learn basic mechanical skills.
U
For many, the maintenance history I’ve described might seem daunting.
Snoop Score Breakdown
Sentiment
5.0
Popularity
5.0
Feautures
1.1
❌ Not Recommended

Compare On All Talked About Dimensions

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

Products that are Best For...

From daily drivers needing a budget swap to performance rigs craving aluminum upgrades, these picks serve every scenario. Trust the Reddit crowd’s verdict for your perfect engine coolant fix!

Routine Maintenance Replacement
Dorman 902-689 Engine Coolant Thermostat Housing

The Dorman thermostat housing is a direct-fit replacement that restores proper engine temperature control, as evidenced by positive feedback from users who have successfully replaced their original ho...

Performance Upgrades
PQY Swivel Neck Thermostat Housing for K Series

This product is ideal for performance upgrades due to its adjustable swivel neck and multiple ports, allowing for custom plumbing configurations in high-performance or racing builds. Positive feedback...

OEM Restoration Projects
General Motors Genuine GM 12597172 Engine Cooling Thermostat Housing

As a genuine GM product, it is suitable for OEM restoration projects, providing an exact-match assembly for collectors and classic car rebuilds.

Universal Retrofits
PQY Swivel Neck Thermostat Housing for K Series

The PQY housing's modular design with multi-port options makes it suitable for universal retrofits, particularly for deleting heater hoses or adding accessory sensors in engine swaps. This aligns well...

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