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🔥 Keep your engine cool, your drive hot — AISIN precision in every mile!
The AISIN THT-019 Engine Coolant Thermostat is a high-quality, OE-matched thermostat designed for select Lexus, Toyota, and Scion vehicles. Manufactured with premium alloy steel and plastic, it ensures precise temperature regulation by opening at the exact OE specified temperature. With a direct engine mount design and backed by AISIN’s decades of automotive expertise, this thermostat delivers reliable, consistent cooling system performance and long-lasting durability, making it a trusted upgrade for professional drivers seeking optimal engine efficiency.
| ASIN | B07GNQY7X4 |
| Backlight | No |
| Best Sellers Rank | #12,818 in Automotive ( See Top 100 in Automotive ) #11 in Automotive Replacement Engine Thermostats |
| Brand | AISIN |
| Color | Factory |
| Connectivity Protocol | Wired |
| Connectivity Technology | Wired |
| Control Method | Touch |
| Control Type | Button Control |
| Controller Type | touch |
| Customer Reviews | 4.6 4.6 out of 5 stars (528) |
| Date First Available | August 20, 2018 |
| Display Type | manual |
| Exterior | Machined |
| Global Trade Identification Number | 04954514965101 |
| Included Components | thermostat |
| Item Weight | 5.6 ounces |
| Item model number | THT-019 |
| Manufacturer | AISIN |
| Manufacturer Part Number | THT-019 |
| Material | Alloy Steel, Plastic |
| Model Name | AISIN |
| Mounting Type | Direct Engine Mount |
| Position | Inside |
| Power Source | Hardwire |
| Product Dimensions | 3 x 1 x 2.8 inches |
| Shape | cylindrical |
| Specific Uses For Product | [Possible applications: engine temperature regulation, vehicle heating and cooling system control, maintenance of automotive cooling system] |
| Style | Modern |
| Temperature Control Type | automatic |
| Voltage | 12 Volts |
J**N
High Quality Thermostat
Tested sat out of the box for once, I've tried a lot of thermostat brands (even Napa) and they are very hit or miss these days. Quality control since the pandemic has been atrociously worse. Aisin however has remained top notch. Opens right at the advertised temp and opens linearly until maximum opening, and reliably opens and closes effectively. Works well. Don't forget a thermostat gasket if you need one (but don't add one if you don't!)
M**.
Very efficient
Easy to install, fits well and give good temperature in a Toyota Highlander.
T**B
Order a gasket too
Fit nice, easy install, good temperature. Does not include gasket, I ordered a Fel-Pro
H**K
Sienna finally reaches operating temp in winter!
Installed on 2013 Toyota Sienna. It wasn't reaching operating temperature in the winter, but does now after replacing with this thermostat. Quality appears to be OEM (Aisin). Pay attention to the position of the little "jiggle valve" when installing. The gasket is sold separately but should probably be replaced at the same time.
S**A
Works for 2002 Tundra V6
Fit perfectly on a 02 tundra 5vz fe (V6) without the oil cooler line on the thermostat housing.
M**Z
EXCELENTE CALIDAD, ORIGINAL, PARA VARIOS MODELOS TOYOTA AISIN
A**S
Good thermostat
Works like it should
A**N
As Good as the Original
This thermostat functions just as well as the original from Toyota. Since Aisin is an OEM supplier, this may be the exact same part. It fits perfectly in the 1MZ-FE engine in my 1999 Camry. Doesn't come with the gasket, but the gasket is cheap and readily available. Just make sure the "jiggle" valve is on top when your install it.
S**8
Works really well
Y**Y
Aisin belongs to Toyota, goog quality
M**L
Oem product 👍
A**R
So far so good, exact same stuff they sell at the dealer
I**.
Doesn't fit a 2012 Camry Le 4 cylinder. Way too big. I tried to get supplier assistance before returning but was directed to a large white screen with huge red lettering that said "BLOCKED". I was disappointed that the item didn't seem to fit and that I was blocked from getting technical assistance. Not my best experience. And, I lost $25 of antifreeze when getting access to the thermostat only to find I received an incompatible part.
Trustpilot
2 weeks ago
2 weeks ago