Description

A defective thermostat can result in engine overheating and potential internal damage. Improve the reliability of your 2003+ Toyota 4Runner 4.0L cooling system with a Mishimoto Low-Temperature Racing Thermostat and housing!

This thermostat is designed as a direct-fit replacement for your aged stock unit. The Mishimoto thermostat has a lower activation temperature (71C/160F) compared to the factory thermostat (82C/180F). The lower activation temperature allows coolant to flow through the engine earlier, which reduces and maintains lower engine temperatures. This thermostat is ideal for use in warmer climates, on vehicles making more power than stock, or under extreme towing/driving conditions. The stock-style housing will provide a proper seal and installs easily.

Like all our Toyota Performance parts, this thermostat and housing includes the Mishimoto Lifetime Warranty.

Product Features

  • Direct fit for 2003+ Toyota 4Runner 4.0L
  • Stock-style housing includes pre-installed low-temperature thermostat for easy install
  • The lower activation temperature allows coolant to flow through the engine earlier, which yields and maintains lower engine temperatures (71-C/160-F compared to the factory thermostat at 82-C/180-F)
  • Ideal for use in hot climates, on modified vehicles, or in extreme towing/driving conditions
  • Mishimoto Lifetime Warranty

Specifications

  • OEM Activation Temp C: 82°C
  • OEM Activation Temp F: 180°F
  • Mishimoto Activation Temp (Fahrenheit): 160°F
  • Mishimoto Activation Temp (Celsius): 71°C

What's Included

  • (1) Mishimoto Low-Temp Thermostat
  • (1) Thermostat Housing w/ O-Ring
  • Mishimoto Lifetime Warranty

Compatibility

  • 2020 - 2021 Toyota 4Runner Base
  • 2003 - 2021 Toyota 4Runner Limited
  • 2020 - 2021 Toyota 4Runner Nightshade
  • 2003 - 2009 Toyota 4Runner Sport
  • 2003 - 2021 Toyota 4Runner SR5
  • 2018 - 2021 Toyota 4Runner SR5 Premium
  • 2010 - 2021 Toyota 4Runner Trail
  • 2017 - 2021 Toyota 4Runner TRD Off-Road
  • 2018 - 2021 Toyota 4Runner TRD Off-Road Premium
  • 2015 - 2021 Toyota 4Runner TRD Pro
  • 2020 - 2021 Toyota 4Runner Venture
  • 2007 - 2014 Toyota FJ Cruiser Base
  • 2009 Toyota FJ Cruiser Core
  • 2008 - 2014 Toyota FJ Cruiser Premium
  • 2008 Toyota FJ Cruiser Trail Teams Special Edition
  • 2007 Toyota FJ Cruiser TRD Special Edition
  • 2005 - 2008 Toyota Tacoma Base
  • 2006 Toyota Tacoma Base Prerunner
  • 2005 - 2008 Toyota Tacoma Pre Runner
  • 2006 - 2008 Toyota Tacoma SR5 Prerunner
  • 2006 - 2008 Toyota Tacoma TRD Sport Prerunner
  • 2005 - 2008 Toyota Tacoma X-Runner

A defective thermostat can result in engine overheating and potential internal damage. Improve the reliability of your 2003+ Toyota 4Runner 4.0L cooling system with a Mishimoto Low-Temperature Racing Thermostat and housing!

This thermostat is designed as a direct-fit replacement for your aged stock unit. The Mishimoto thermostat has a lower activation temperature (71C/160F) compared to the factory thermostat (82C/180F). The lower activation temperature allows coolant to flow through the engine earlier, which reduces and maintains lower engine temperatures. This thermostat is ideal for use in warmer climates, on vehicles making more power than stock, or under extreme towing/driving conditions. The stock-style housing will provide a proper seal and installs easily.

Like all our Toyota Performance parts, this thermostat and housing includes the Mishimoto Lifetime Warranty.

Product Features

  • Direct fit for 2003+ Toyota 4Runner 4.0L
  • Stock-style housing includes pre-installed low-temperature thermostat for easy install
  • The lower activation temperature allows coolant to flow through the engine earlier, which yields and maintains lower engine temperatures (71-C/160-F compared to the factory thermostat at 82-C/180-F)
  • Ideal for use in hot climates, on modified vehicles, or in extreme towing/driving conditions
  • Mishimoto Lifetime Warranty
  • OEM Activation Temp C: 82°C
  • OEM Activation Temp F: 180°F
  • Mishimoto Activation Temp (Fahrenheit): 160°F
  • Mishimoto Activation Temp (Celsius): 71°C
  • (1) Mishimoto Low-Temp Thermostat
  • (1) Thermostat Housing w/ O-Ring
  • Mishimoto Lifetime Warranty
  • 2020 - 2021 Toyota 4Runner Base
  • 2003 - 2021 Toyota 4Runner Limited
  • 2020 - 2021 Toyota 4Runner Nightshade
  • 2003 - 2009 Toyota 4Runner Sport
  • 2003 - 2021 Toyota 4Runner SR5
  • 2018 - 2021 Toyota 4Runner SR5 Premium
  • 2010 - 2021 Toyota 4Runner Trail
  • 2017 - 2021 Toyota 4Runner TRD Off-Road
  • 2018 - 2021 Toyota 4Runner TRD Off-Road Premium
  • 2015 - 2021 Toyota 4Runner TRD Pro
  • 2020 - 2021 Toyota 4Runner Venture
  • 2007 - 2014 Toyota FJ Cruiser Base
  • 2009 Toyota FJ Cruiser Core
  • 2008 - 2014 Toyota FJ Cruiser Premium
  • 2008 Toyota FJ Cruiser Trail Teams Special Edition
  • 2007 Toyota FJ Cruiser TRD Special Edition
  • 2005 - 2008 Toyota Tacoma Base
  • 2006 Toyota Tacoma Base Prerunner
  • 2005 - 2008 Toyota Tacoma Pre Runner
  • 2006 - 2008 Toyota Tacoma SR5 Prerunner
  • 2006 - 2008 Toyota Tacoma TRD Sport Prerunner
  • 2005 - 2008 Toyota Tacoma X-Runner

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