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Allmotorparts

Engine Thermostat, Replace 90916-A3003, 90916A3003, 90916-03129 Compatible with Toyota Lexus - Avalon, Camry, Corolla, Highlander, Matrix, RAV4, Sienna, Solara, Tacoma, LS400, GS300, Yaris, More

Based on 551 reviews
Condition: New
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$14.79
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Oct 30
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At a glance

Condition
New
Model
AMP095
Color
Black
Material
Stainless Steel
Controller Type
Push Button
Power Source
Battery Powered
Display Type
LED
In the box
Spring

Features 5

  • REPLACEMENT ENGINE THERMOSTAT : An engine's thermostat regulates the temperature of the engine by controlling coolant flow. Symptoms of a bad or failing thermostat: high temperature reading and engine overheating, low temperature reading and underheated engine, temperature changing erratically, coolant leaks around thermostat housing or under vehicle. You can find your car's thermostat by starting at the upper radiator hose and following it to where it enters the top of the engine.
  • COMPATIBLE WITH TOYOTA VEHICLES : 2010 4Runner | 1995-2018 Avalon | 1994-2017 Camry | 2000-2005 Celica | 2000-2019 Corolla | 2001-2019 Highlander | 2003-2013 Matrix | 2000-2005 MR2 Spyder | 2001-2009 Prius | 2001-2018 RAV4 | 1998-2016 Sienna | 1999-2008 Solara | 2005-2016 Tacoma | 2009-2015 Venza | 2007-2018 Yaris | 2005-2006, 2011-2016 tC | 2004-2006 xB, xA | 2008-2010 xD thermostat. Please check the detailed description or part numbers to confirm the compatibility before purchase. Thank you!
  • REPLACES PART # : 90916-A3003, 90916A3003, 90916-03129, 9091603129, 90916-A3002, 16325-62010, 90916A3002 thermostat. The thermostat can compatible with Lexus : 1994-2003 ES300 | 2004-2006 ES330 | 2007-2017 ES350 | 1993-2005 GS300 | 2001-2005 IS300 | 1990-1997 LS400 | 1999-2003 RX300 | 2004-2006 RX330 | 2007-2015 RX350 | 2006-2008 RX400h | 2010-2014 RX450h | 1992-2000 SC300 | 1992-1997 SC400. Please be aware that the studs for the house can back out if there is a frozen nut on it.
  • OE FIT, FORM, FUNCTION : Professional, high quality OE style and meet or exceed all original equipment performance replacement thermostat. Constructed with premium materials for durability. Stainless steel mounting flange designed to properly fit and seat the thermostat in outlet casting, resulting in better performance. Channel constructed stainless steel spring frame for extra strength and durability.

Description

An engine's thermostat regulates the temperature of the engine by controlling coolant flow, its job is to block the flow of coolant to the radiator until the engine has warmed up. Symptoms of a bad or failing thermostat: high temperature reading and engine overheating; low temperature reading and underheated engine; temperature changing erratically; coolant leaks around thermostat housing or under vehicle. NOTE: If the thermostat has a jiggle pin, check valve, or other feature to assist in bleeding air from the system in a vertical installation, the jiggle pin should be located at the north or 12 o'clock location. Compatible with Toyota Vehicles: 2010 4Runner 1995-2018 Avalon 1994-2017 Camry 2000-2005 Celica 2000-2019 Corolla 2001-2019 Highlander 2003-2013 Matrix 2000-2005 MR2 Spyder 2001-2009 Prius 2001-2018 RAV4 1998-2016 Sienna 1999-2008 Solara 2005-2016 Tacoma 2009-2015 Venza 2007-2018 Yaris Compatible with Lexus Vehicles: 1994-2003 ES300 2004-2006 ES330 2007-2017 ES350 1993-2005 GS300 2001-2005 IS300 1990-1997 LS400 1999-2003 RX300 2004-2006 RX330 2007-2015 RX350 2006-2008 RX400h 2010-2014 RX450h 1992-2000 SC300 1992-1997 SC400 Compatible with Scion Vehicles: 2005-2006, 2011-2016 tC 2004-2006 xB 2004-2006 xA 2008-2010 xD Replaces Part : 90916-A3003, 90916A3003, 90916-03129, 9091603129, 90916-A3002, 16325-62010, 90916A3002 Thermostat. NOTE: To ensure accurate fitment, please confirm your vehicle information in the above compatibility section and the description.

Specs 24

Brand Allmotorparts
Model Name Engine Thermostat
Controller Type Push Button
Color Black
Specific Uses For Product Automobile Engine Heating System
Temperature Control Type Automatic
Connectivity Technology Wi-Fi
Power Source Battery Powered

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 30

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

very nice
thank you very much
Reviewed in the United States on August 13, 2026 by brian
Thanks
Perfect fit. Thanks.
Reviewed in the United States on May 13, 2026 by ernesto
This thermostat fits Solara Toyota 2004 V6 3.3
Fits. Includes rubber gasket for thermostat. It has the necessary air bleeding hole. Temp stamped on product is 82 C which is also 180 F I bought this version because I believe it is better than the OEM version. Advice for Solara repair: -My old thermostat was stuck open causing the temp colder than expected engine trouble code -The thermostat on this V6 engine is in the top of engine drivers side beneath the air intake and lots of wires/tubes. More difficult than the 4 cylinder. -There is an O-ring in the connecting coolant pipe that you may want to replace or have on hand. This is not included with this thermostat. I used the old one, no leaks. -Engine thermometer is plugged into the Solara thermostat housing... you may as well get a new one in case of breaking the old one off. It’s a tight space maneuvering the thermostat housing around tubes and wires with the thermometer still on, but it is possible. I did it. You can too. ... show more
Reviewed in the United States on December 16, 2019 by Raven’s Teeth
Works well.
installed on a 2009 corolla. I didn't have the gasket leak like others.. maybe just luck. 5.5k miles so far with no issues.
Reviewed in the United States on November 12, 2025 by Vuesters92
Gasket slightly undersized on width
Gasket slightly undersized on width. Not the same as original. Bought another gasket on Amazon and it was good. This thermostat also causes my temperature gage to move slightly hotter than the original, and it was not as beefy as original. However, it is installed on my ol' RX330 and it works.
Reviewed in the United States on July 10, 2023 by David M.
Amazon comes through in a big way
This thing is a GODSEND! Thanks, Amazon and “a certain tube of videos”! I saved at least a couple hundred dollars by not bringing my car to the shop. It fit perfectly was easily installed. My car is a 2005 Camry LE. The temperature gauge kept reading like it was overheating even after just a few minutes on. The heater wasn’t blowing hot air. And the check engine light came on for the temp sensor. I first changed the sensor (which I got off a bidding website) and then changed the thermostat. It fixed all of the problems. I’m not very savvy when it comes to the mechanical side of cars but I’ve always wanted to do some of my own minor repairs. I am pretty handy with tools, though, and not too afraid of problem-solving. So take my reviews with a grain of salt. ... show more
Reviewed in the United States on January 27, 2020 by E. C.
Works as intended
Works as intended. And came with gasket.
Reviewed in the United States on September 9, 2025 by Beau
Just as good as my Sienna's OEM part
I bought this to correct an overheating problem with my Sienna. Although I ultimately found I had to replace my entire radiator and this part did not fix my problem, it was not the fault of this part. I found no difference in the quality of this part or the rubber O-ring that came with it compared to what i removed/replaced. One other note: if you do not own a fair amount of tools and are not fairly handy and experienced at assembly/re-assembly, this part and the task of replacing one may not be for you :-) ... show more
Reviewed in the United States on April 8, 2021 by Craig A. Wassel
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