

🔥 Stay cool, perform hotter — the thermostat your engine deserves!
The AISIN THT-019 OE Engine Coolant Thermostat delivers precise temperature regulation with exact OE form, fit, and function. Built from premium materials, it ensures dependable cooling system performance across a wide range of Lexus, Toyota, and Scion vehicles. Trusted by professionals and backed by Aisin’s decades of engineering excellence, this thermostat guarantees consistent, efficient engine thermal management for long-term reliability.




| ASIN | B07GNQY7X4 |
| Brand | AISIN |
| Customer Reviews | 4.6 4.6 out of 5 stars (503) |
| Date First Available | 24 January 2020 |
| Exterior | Machined |
| Item Weight | 159 g |
| Item model number | THT-019 |
| Manufacturer | AISIN |
| Manufacturer Part Number | THT-019 |
| Mirror Adjustment | Button Control |
| Model | AISIN THT-019-Engine Coolant Thermostat |
| Position | Inside |
| Product Dimensions | 7.62 x 2.54 x 7.11 cm; 159 g |
| Voltage | 12 Volts |
J**N
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!)
S**8
Works really well
Y**Y
Aisin belongs to Toyota, goog quality
M**.
Easy to install, fits well and give good temperature in a Toyota Highlander.
T**B
Fit nice, easy install, good temperature. Does not include gasket, I ordered a Fel-Pro
Trustpilot
1 month ago
2 weeks ago