Mishimoto Thermostatic Oil Cooler Kit Black Subaru WRX 2015-2017

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High oil temperatures can wreak havoc on your high-performance FA20 DIT. Protect your investment with the Mishimoto direct-fit thermostatic oil cooler kit designed specifically for the 2015+ Subaru WRX. The WRX has tons to offer with its turbocharged engine and fantastic AWD system, but the stock liquid-to-liquid oil cooler cannot handle prolonged aggressive driving conditions. This kit is designed to replace the stock liquid-to-liquid with a Mishimoto Sandwich Plate with Rear-Mounted Thermostat, which includes a built-in thermostat with a 185 Degrees Fahrenheit / 85 Degrees Celsius activation temperature. Properly regulated oil temperatures become even more important if you have modified your vehicle or spend time tracking your WRX.

Mishimoto's direct-fit oil cooler is engineered to reduce oil temperatures and extend the life of your engine. For optimal airflow and cooling, this kit includes a large 19-row cooler that is mounted in the front bumper with robust application-specific brackets. The included application-specific silicone liquid-to-liquid heat exchanger bypass hose provides a clean look in the engine bay. This kit includes preassembled stainless steel lines with -10AN fittings to help direct the oil to and from the cooler. With this setup, your WRX can achieve a XX Degrees Fahrenheit (XX.X Degrees Celsius) drop in oil temperatures with minimal pressure loss. The Mishimoto Subaru WRX Thermostatic Oil Cooler Kit is available with either a Sleek Silver or Stealth Black oil cooler. As with all our products, this kit includes the Mishimoto Lifetime Warranty.


  • Direct fit for the 2015+ Subaru WRX
  • Proven 20+°F (11.1+°C) drop in oil temperature
  • Full bolt-on oil cooling solution for street and track vehicles
  • No modification necessary for installation
  • Billet aluminum thermostatic oil sandwich plate allows oil to reach optimum temperature
  • 19-row oil cooler strategically mounted in the lower grille for maximum airflow
  • CNC-machined aluminum spacer for the oil sandwich plate
  • Silicone hose bypasses stock liquid-to-liquid heat exchanger
  • Includes preassembled stainless steel braided oil lines with -10AN fittings
  • Cooler available in Sleek Silver or Stealth Black
  • Increases oil capacity by 0.75 qt
  • This oil cooler kit retains the use of your stock liquid to liquid oil cooler unit
  • Mishimoto Lifetime Warranty
It is the installer's responsibility to check all thermostat plugs, NPT plugs, line fittings, and other connections to assure they are fully tightened before operating the vehicle. Mishimoto recommends that you check all connections at regular intervals, especially during the first few miles after installation.


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