Specifications
Part Details:
The factory thermostat on these Subaru platforms opens at a higher temperature, which can let coolant temps climb further than ideal under hard driving or with a modified, upgraded turbo setup. This Mishimoto racing thermostat opens at 68 degrees Celsius, noticeably lower than stock, allowing coolant to begin circulating sooner and helping maintain lower, more consistent engine temperatures.
A direct OEM-fit replacement that installs with the stock housing, digitally calibrated for precise, repeatable operation.
Key Features
- Fits 2001 to 2014 Subaru WRX and 2001 to 2021 Subaru STI
- Opens at 68 degrees Celsius, lower than the factory thermostat
- Promotes lower, more stable coolant temperatures
- Direct OEM-fit replacement, installs with the stock housing
- Digitally calibrated for precise operation
- Includes gasket where applicable
- Mishimoto lifetime warranty
Frequently Asked Questions
Why would I want a lower opening temperature?
A lower opening temperature lets coolant begin circulating sooner, which helps keep engine temps lower and more stable, especially useful on modified or turbocharged applications under hard use.
Does this replace the thermostat housing too?
No, this is a direct replacement for the thermostat itself and installs into your existing stock housing.
Is this a good match for a daily driven car?
Yes, it is a straightforward upgrade for daily drivers and modified builds alike, and does not require any other supporting changes to install.
Recommended Supporting Components
- WRX Engine Reliability Upgrades explore cooling and reliability upgrades for your WRX build.
- STI Engine Reliability Upgrades explore cooling and reliability upgrades for your STI build.
- Upgraded Radiators for WRX and STI: When You Actually Need One pairing this with a bigger cooling upgrade? Start here.
- WRX Cooling Mods: Radiator vs Intercooler vs Oil Cooler understand where this fits into a full cooling upgrade plan.
Why Buy Cooling Upgrades from Wrench Masters?
Wrench Masters carries the small, affordable cooling upgrades that protect a modified engine, not just the big radiators and intercoolers. A lower opening thermostat is one of the cheapest ways to keep coolant temps in check.
Shipping
Shipping Options:
WrenchMastersAuto.com ships your performance parts safely, quickly and conveniently nationwide via the most trusted shipping carriers such as: UPS, Fed Ex, USPS, and DHL.
Delivery Times:
- In Stock: 3-7 Business Days
- Custom Orders: 2-6 Weeks, Please Email: [email protected] or Call: 727-565-9808 for Questions.
Enjoy FREE SHIPPING on most orders over $199!
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