An engine thermostat is a device engineered to control engine coolant temperature. Performance thermostats are built to be able to withstand considerable differences in coolant temperatures and pressures that can occur at higher RPMs. In such conditions, the standard thermostat will not be reliable due to a larger amount of heat that it won't be able to handle. It can compromise coolant flow , causing coolant to stay in the engine longer than necessary and as a result, increase its temperature. The well-balanced performance thermostats feature brass and copper constructions and open up at the correct temperature whatever the engine RPMs.

There isn’t a better engine temperature controlling device than a perfectly-functioning engine coolant thermostat. Toyota 4Runner performance thermostats that we offer feature balanced sleeve designs and are engineered for high-RPM applications. Our high-flow thermostats are recommended for performance applications and will work well with high-capacity engine coolant pumps. They offer superb all-season performance and added protection against possible engine-damaging detonation, while helping you gain maximum HP. Outfit your Toyota 4Runner with one of our performance thermostats, your engine will be cooled efficiently!

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    • (0 reviews)
      # sp18689
      Low Temperature Thermostat by Mishimoto®. Lower activation temperature allows coolant to flow through the engine earlier, maintaining lower temperatures. Mishimoto thermostat activates at 185°F vs. factory 192°F.
      Direct fit6061 CNC-machined aluminum construction
      $24.00 - $104.00
    • (2 reviews)
      # sp3520
      Thermostat by JET®. Jet Low-Temp Thermostats increase horsepower and control engine temp by consistently metering water flow throughout the engine instead of simply cycling open/close, which in OE units creates temperature spikes.
      Designed to reduce engine temperature and produce more horsepowerMade from stainless steel
      $14.96 - $55.46
    • (1 review)
      # sp10011
      Fail Safe Series Thermostat by MotoRad®. Fail-Safe Thermostats offer premium, patented technology for superior protection over any thermostat on the market. Only Fail-Safe is designed to lock in the open position when overheating occurs...
      Exclusive, patented designLocking technology prevents costly engine damage
      $8.96 - $49.29
    • (1 review)
      # sp10012
      High-Flow Series Thermostat by MotoRad®. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust the high quality product used in their vehicle. MotoRad offers...
      Made of stainless steelProvide increased flow
      $6.94 - $13.20
    • (0 reviews)
      # mpn2266980
      Racing Aluminum Low-Temperature Thermostat by Mishimoto®. Temperature: 154.4 Degree. Round out your cooling system with a Mishimoto Thermostat Housing! This thermostat housing is designed as a direct-fit replacement for your aged...
      Direct fit6061 CNC-machined aluminum construction
      $58.08
    • (0 reviews)
      # mpn823286862
      Fail Safe Series™ Engine Coolant Thermostat by MotoRad®. Temperature: 180 Degree. Fail-Safe Thermostats offer premium, patented technology for superior protection over any thermostat on the market. Only Fail-Safe is designed to lock...
      Exclusive, patented designHigh quality Stainless Steel and Copper construction
      $16.07
    • (0 reviews)
      # mpn823279031
      High-Flow Series™ Engine Coolant Thermostat by MotoRad®. Temperature: 180 Degree. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust the high quality...
      Made of stainless steelProvide increased flow
      $8.72
    • (0 reviews)
      # mpn510435937
      Thermostat by JET®. O-Ring Gasket. Jet Low-Temp Thermostats increase horsepower and control engine temp by consistently metering water flow throughout the engine instead of simply cycling open/close, which in OE units creates...
      Designed to reduce engine temperature and produce more horsepowerMade from stainless steel
      $21.71
    • (0 reviews)
      # mpn510435938
      Thermostat by JET®. Gasket Not Include. Jet Low-Temp Thermostats increase horsepower and control engine temp by consistently metering water flow throughout the engine instead of simply cycling open/close, which in OE units creates...
      Designed to reduce engine temperature and produce more horsepowerMade from stainless steel
      $21.71
    • (0 reviews)
      # mpn823285467
      Fail Safe Series™ Engine Coolant Thermostat (7240-180) by MotoRad®. Temperature: 180 Degree. Fail-Safe Thermostats offer premium, patented technology for superior protection over any thermostat on the market. Only Fail-Safe is...
      Exclusive, patented designHigh quality Stainless Steel and Copper construction
      $9.77
    • (0 reviews)
      # mpn823278387
      High-Flow Series™ Engine Coolant Thermostat (2015-180) by MotoRad®. Temperature: 180 Degree. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust the high...
      Made of stainless steelProvide increased flow
      $9.89
    • (0 reviews)
      # mpn823279032
      High-Flow Series™ Engine Coolant Thermostat (2040-192) by MotoRad®. Temperature: 192 Degree. State-of-the-art equipment, strict quality control, and functional testing to each thermostat ensure customers that they can trust the high...
      Made of stainless steelProvide increased flow
      $8.72
    • (0 reviews)
      # mpn823282384
      Fail Safe Series™ Engine Coolant Thermostat (7215-180) by MotoRad®. Temperature: 180 Degree. Fail-Safe Thermostats offer premium, patented technology for superior protection over any thermostat on the market. Only Fail-Safe is...
      Exclusive, patented designHigh quality Stainless Steel and Copper construction
      $10.70
    • (0 reviews)
      # mpn823285468
      Fail Safe Series™ Engine Coolant Thermostat (7240-160) by MotoRad®. Temperature: 160 Degree. Fail-Safe Thermostats offer premium, patented technology for superior protection over any thermostat on the market. Only Fail-Safe is...
      Exclusive, patented designHigh quality Stainless Steel and Copper construction
      $10.27


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    Toyota 4Runner Thermostats Reviews

    Average rating:  5  5 - 1 review
    5 of 5
    Thermostat
    Great product, exactly like one from the factory.
    LPosted by Lance Z (Boise, ID) / January 4, 2018
    2007 Toyota 4Runner
    Was this review helpful for you? Yes

    Toyota 4Runner Models
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