TRD 170F Thermostat – Toyota 2ZZ 1ZZ 2GR 2ZR



This 170F (76C) thermostat keeps your engine running cooler for better power and more protection from detonation/pinging. This means you can run more timing, run leaner, and run bore boost without risking dangerous detonation. 170F is great for street or track and usually does not cause a high idle even with a stock ECU. Will not cause any OBD error codes.

You may also want the THERMOSTAT GASKET which is pictured but sold separately

It fits:

  • Lotus Elise/Exige – All Toyota powered
  • Lotus Evora/Exige 3.5L V6 all
  • 2000-05 MR2 Spyder – all
  • 2000-05 Toyota Celica GT and GTS – all
  • 2000-21 Toyota Corolla 1.8L all (does not fit 2.0)
  • 2003-12 Matrix/Vibe 1.8L all
  • 2008-14 Scion xD
  • 2015+ Scion iM

Please note we purchase these in bulk so they do not show up in a fancy individual TRD box.

Additional information

Weight .2 lbs
Dimensions 1 × 1 × 1 in

1 review for TRD 170F Thermostat – Toyota 2ZZ 1ZZ 2GR 2ZR

  1. nathan smith (verified owner)

    Not bad for the price. More of an endurance upgrade then a performance upgrade. Main reason I did it was because I was swapping motors. Easy to install with the engine outside of the car. If It was me I would not just do this for the cooling system upgrade at one time. It would be a better idea to do this thermostat when you also buy the MWR pulleys for the alt and wp. 2zz wp with
    New belt and 3 row Mishimoto radiator. Just buy one massive kit from MWR and do everything at once.
    Overall though thermostat does what it is suppose to. Thanks MWR!!!!

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