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Your cart is empty.AISIN OE matched engine coolant thermostats are designed for efficient, consistent performance and manufactured using only the highest quality materials. With superior OE technology and know-how, AISIN ensures that every thermostat provides perfect OE form, fit, and function and features the correct OE specified operating temperature. AISIN is a leader in the development and production of high-quality original equipment matched components and systems for the automotive industry. Founded in 1965 to produce original equipment automotive parts, AISIN has grown into a $25+ billion global enterprise with approximately 70,000 employees worldwide. Superior products through engineering excellence, progressive technological development, and dedication to service are some factors which have contributed to bringing AISIN to its position as a multiple-award-winning global leader in automotive parts.
Rudy h.
Reviewed in the United States on August 12, 2022
Perfect
David S. Willsey
Reviewed in the United States on November 29, 2022
Tried two different thermostats before purchasing this one. Truck doesn't runner cooler now. Happy with purchase! Note: this doesn't include the O ring.
CFS
Reviewed in the United States on December 15, 2020
The only way to pay more for this thermostat is to buy it directly from Toyota. At this price point there is absolutely no reason to not include the gasket. The $4.50 thermostat from the local parts store comes with a gasket. I haven't put this 'stat into a pot of water alongside its competitors to test the opening temperature, but it sure looks like the $4.50 thermostat (that I had to buy in order to get the freakin' gasket). If you conclude that I'm a bit disgruntled about having to make a trip into town to buy a gasket, then you have definitely followed the plot. It's a 30 cent part, it needs to be changed with the thermostat, why be so cheap when you are charging so much?
Yancy C Calderon
Reviewed in the United States on December 11, 2019
OEM. Works great!
muckluck5377
Reviewed in the United States on January 12, 2019
I replaced my water pump and thought it would be a good idea to replace the thermostat while I was at it. The new one never opened and caused my 90 4runner pickup to overheat. I replaced it with the old one and all was good again. I must have received a bad one. A professional mechanic double checked and confirmed.
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