

🔥 Keep your engine cool, your ride smooth, and your status premium! 🔥
The AISIN THF-003 Engine Coolant Thermostat with Gasket is a high-quality, OEM-matched replacement part designed specifically for select Saab 9-2X and Subaru models. Manufactured with durable stainless steel and engineered to maintain precise operating temperatures, it ensures reliable engine cooling and optimal performance. Complete with gasket and O-ring, this thermostat offers a perfect fit and long-lasting durability trusted by automotive professionals worldwide.




| ASIN | B01LWMM7VY |
| Backlight | No |
| Best Sellers Rank | #31,437 in Automotive ( See Top 100 in Automotive ) #41 in Automotive Replacement Engine Thermostats |
| Brand | AISIN |
| Color | Black |
| Connectivity Protocol | Wi-Fi |
| Connectivity Technology | Wi-Fi |
| Control Method | Touch |
| Control Type | Button Control |
| Controller Type | Push Button |
| Customer Reviews | 4.4 4.4 out of 5 stars (177) |
| Date First Available | September 22, 2016 |
| Display Type | analog |
| Exterior | Machined |
| Global Trade Identification Number | 04580281458586 |
| Included Components | AISIN THF-003-Engine Coolant Thermostat |
| Item Weight | 5 ounces |
| Item model number | THF-003 |
| Manufacturer | AISIN |
| Manufacturer Part Number | THF-003 |
| Material | Stainless Steel |
| Model Name | AISIN |
| Mounting Type | Surface Mount |
| OEM Part Number | 21210-AA080 |
| Power Source | Battery Powered |
| Product Dimensions | 2.95 x 2.95 x 2.76 inches |
| Shape | Rectangular |
| Specific Uses For Product | engine cooling system temperature regulation in select SAAB and SUBARU vehicles |
| Style | Modern |
| Temperature Control Type | manual |
T**Y
Perfect fit 02 Legacy 2.5L
10-15 minute install on a 2002 Subaru legacy with a 2.5L, took photo to compare that the product is slightly different but works great fixed overheating issue of the old one staying stuck closed and heat is great
J**S
OEM quality thermostat
Aisin is an OEM parts supplier for Subaru. If you’re replacing your radiator, timing belt or head gaskets, might as well swap in a new thermostat.
A**R
This was the correct part for my car
Excellent part
K**P
Works great in a 2005 Outback 2.5i
Fixed my thermostat on a 2005 Outback 2.5i. I was a bit worried because it said 80 deg C on it and I thought the original one was rated at 70 Deg C, but I was wrong.. The original one was 78 deg C. 4 degrees isn't that much. It was a straight swap without issues. After refilling and burping the cooling system, my cooling system is happy again.
N**K
It fits subaru 2005-2009
It fits my 2009 subaru outback and it doesn't overheat anymore
B**N
Good fit !
Correct part for my Subaru.. car may not be pretty after 27 years but heat works good, engine temp great
A**R
Good
Good
J**G
As good as oem
Operates and opens as designed at correct temp for my 05 forester. Budget friendly option with oem quality
M**T
got this for a 2011 outback 3.6 and it matches the OEM one
Q**R
Mint bud!
P**A
Thermostat was damaged and overheated my car. I trusted AISIN but now i got disappointed.
R**L
Kept sticking closed and overheating my car. Removed it and no problems since.
N**4
Reduced wrong part didn’t fit my car waist my time , i had to install old one. Amazon f…d up
Trustpilot
1 month ago
3 weeks ago