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🚗 Keep your engine cool and your ride smooth!
The AISINTHT-004 Engine Coolant Thermostat with Housing and Gasket is engineered for optimal performance in select Lexus models. With OE matched specifications, it ensures precise temperature regulation and dependable cooling system functionality. Manufactured in Japan with high-quality materials, this thermostat is designed for longevity and includes essential components for easy installation.
| ASIN | B01M1I6B07 |
| Best Sellers Rank | #196,617 in Automotive ( See Top 100 in Automotive ) #324 in Automotive Replacement Engine Thermostats |
| Brand | AISIN |
| Customer Reviews | 4.5 4.5 out of 5 stars (150) |
| Date First Available | September 21, 2016 |
| Exterior | Machined |
| Item Weight | 7 ounces |
| Item model number | THT-004 |
| Manufacturer | AISIN |
| Manufacturer Part Number | THT-004 |
| Mirror Adjustment | Button Control |
| Model | AISIN |
| OEM Part Number | 16031-31020 |
| Position | Center |
| Product Dimensions | 4.1 x 4.1 x 3.7 inches |
J**Z
OEM perfect fit, no issues
Works well for 2010 Lexus is350. Now my thermostat functions properly and my temperature gauge needle is in the right spot around the middle. My old one was stuck at being at C on the gauge, because the thermostat was stuck open from old age.
T**D
Perfect exact same design and fit
Works perfectly, unlike the aftermarket ones sold in stores with my car. Very specific and controlled temperature control
M**.
OEM, fits and works perfect
Exactly what you would expect from an OEM product, perfect fit, and function.
N**Z
Jus like oem
Basically like oem same one at autozone was $79 lol u jus waited a 2-3 day to arrive to save $50 !
L**Y
An OEM part. Fit my 11 GS350
It is an OEM part with "Toyota" rubbed off and replaced with a "TAMA Thermostat" sticker. They and AISIN are pretty much an OEM supplier to the major Japanese brands. Your reliable transmission? Made by AISIN. They probably sell any overstock as their brand. 100% you can trust this aftermarket brand. Toyota does, puts it in their box, charges $30 more. It is important to have original OEM for a plastic housing, some Fords have this similar setup and fail. If I had to do over replacing it, I would have removed the water housing (like the book says). But it is doable with some creativity leaving it on and removing the hoses. Spec is 7ft/lbs-84 in/lbs for the nuts (or bolts, depending how they come out!). Do not overtighten! I used a no spill funnel to fill the system, was due for 100K service. If the review stays the same, the part is working.
M**E
Just like the original that was removed from the car.
It's the same thing in every aspect of the one the original removed from the car. No leakes no issues so far. 2011 Lexus IS250
D**A
Buyer beware
Those seized up after 2 months , but oem And have no issues
A**R
OEM, great quality at an affordable price, thank you! A+
OEM, great quality at an affordable price, thank you! A+
G**Y
Is the OEM Part
Its OEM. Can see the Toyota Logo was shaved off. Cant Complain.
A**D
OEM Part
I can’t say this part is equivalent to the OEM made by Toyota. It is the same one probably made by this company for Toyota. It is identical to the OEM and it looks like they removed the Toyota logo to be sold commercially for the producer. I would highly recommend it.
T**Y
Fit well and works
I used this in a 2009 Lexus IS 250, it fit and work great.
Trustpilot
5 days ago
1 month ago