

🌟 Stay cool, drive smarter — the thermostat your Lexus or Toyota deserves!
The AISIN THT-017 Engine Coolant Thermostat with Housing is a premium OE-matched replacement part designed for select Lexus CT200h and Toyota Prius and Corolla models. It ensures precise temperature regulation with exact OE specifications, features a durable build for long-term reliability, and includes the thermostat housing for easy installation. Backed by AISIN’s global reputation for automotive excellence, this thermostat guarantees consistent engine cooling performance and seamless fitment.




| ASIN | B01LZ82P46 |
| Best Sellers Rank | #31,606 in Automotive ( See Top 100 in Automotive ) #38 in Automotive Replacement Engine Thermostats |
| Brand | AISIN |
| Customer Reviews | 4.6 4.6 out of 5 stars (178) |
| Date First Available | September 21, 2016 |
| Exterior | Machined |
| Item Weight | 7 ounces |
| Item model number | THT-017 |
| Manufacturer | AISIN |
| Manufacturer Part Number | THT-017 |
| Model | AISIN |
| OEM Part Number | 16031-37010 |
| Position | Front |
| Product Dimensions | 6.3 x 6.3 x 3.3 inches |
J**N
Instantly lower temp
Works great. My car was normal operating temperature 200 F and after I installed the thermostat now getting 185 F. Replace your thermostat and at least the rotor on your water pump if your car occasionally overheats. Good quality. Like oem quality.
D**M
OEM supplier part at a reasonable price.
Worked perfectly for a Prius. Once you are replacing the water pump - it is right there and easy to replace.
P**E
Perfect fit
Perfect fit and replacement for 2013 Prius and from a Toyota trusted parts
T**E
Super reliable item
Replacing this thermostat housing (which has a thermostat inside), along with a new AISIN water pump, solved my overheating problem in my Prius V. This is an AISIN brand which--to let folks in on a possible secret--is the same item sold by a Toyota dealer parts department. They just grind off any Toyota branding information. Hence, this is a very reliable product. It's great to not have to worry about overheating my Prius V when I drive it. Had I not monitored the temperature before I installed this thermostat, I could have toasted my engine. I am very pleased with this product.
G**N
Perfect for 2010 Prius
Perfect fit for a 2010 Prius, hoping it will last
A**.
great thermostat
no issues using this thermostat. It was hard to install, but that is not the thermostat's fault. I decided to clean the manifold, pcv value and throttle body, so after taking that stuff out, it was easy to install. I bought this because i was already going to change the water pump on my daughter's 2010 prius.
M**W
Poor packaging
Part worked good! 4 stars due to shipping. Sold by Amazon but it shipped in its original packaging so it was half open and sliding around everywhere.
J**W
A must replace item for your car with high mileage
This is an OEM product with a great price tag. A must replace item if you are over 100,000 miles.
H**T
Don't go with a marginally cheaper non-OEM part for this. Bit of a pain to remove the lower hose clamp, might want to consider buying a remote/flexible hose clamp tool and a set of plastic hose clamps for that part. Good luck!
B**L
Installed it at 223,000km and now I'm at 244,000km and no complaints. It's the same brand from the dealer just without it saying Toyota and costing double. Edit: now at 250,000km and still going strong.
Trustpilot
1 month ago
2 weeks ago