Mishimoto 160 Deg F Low-Temp Racing Thermostat — Fits 03+ Toyota 4Runner 4.0L

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SKU: MISMMTS-4RUN40-03
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Mishimoto 160°F Low-Temperature Racing Thermostat for Toyota 4Runner

Upgrade your Toyota 4Runner 4.0L's cooling system with the Mishimoto 160°F Low-Temperature Racing Thermostat, designed for 2003 and newer models. This thermostat activates at a lower temperature than the stock unit, promoting earlier coolant circulation and significantly reducing the risk of engine overheating, especially beneficial for off-road adventures, towing, or modified vehicles.

Key Features and Benefits:

  • Lower Activation Temperature: Opens at 160°F (71°C), compared to the factory's 180°F (82°C), allowing for more efficient heat dissipation.
  • Enhanced Cooling: Ideal for warmer climates, high-performance applications, or heavy-duty use, maintaining optimal engine temperatures.
  • Direct Fit Replacement: Engineered for a precise fit in the 2003+ Toyota 4Runner 4.0L, ensuring easy installation.
  • Prevents Overheating: Crucial for protecting your engine from heat damage and ensuring long-term reliability.
  • Durable Construction: Built to withstand demanding conditions and frequent temperature fluctuations.

Vehicle Fitment:

This Mishimoto thermostat is compatible with:

  • 2003-Present Toyota 4Runner 4.0L
  • Also fits other Toyota models with the 4.0L engine, including the Tacoma, Tundra, FJ Cruiser, and select Lexus models (verify specific fitment).

Ensure your 4Runner's engine stays cool under pressure. Choose the Mishimoto 160°F Low-Temperature Racing Thermostat for superior cooling performance and reliability. Available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2003-2009 Toyota 4Runner Sport
2003-2021 Toyota 4Runner Limited
2003-2021 Toyota 4Runner SR5
2010-2016 Toyota 4Runner Trail
2015-2021 Toyota 4Runner TRD Pro
2018-2021 Toyota 4Runner SR5 Premium
2018-2021 Toyota 4Runner TRD Off-Road Premium
2020-2021 Toyota 4Runner Nightshade
2020-2021 Toyota 4Runner Venture
2021 Toyota 4Runner Trail
2007 Toyota FJ Cruiser TRD Special Edition
2007-2014 Toyota FJ Cruiser Base
2008 Toyota FJ Cruiser Trail Teams Special Edition
2005-2008 Toyota Tacoma Pre Runner
2005-2008 Toyota Tacoma X-Runner

Product Details

Product Description
Part Numbers
Sizing & Fit

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Mishimoto 160°F Low-Temperature Racing Thermostat for Toyota 4Runner

Upgrade your Toyota 4Runner 4.0L's cooling system with the Mishimoto 160°F Low-Temperature Racing Thermostat, designed for 2003 and newer models. This thermostat activates at a lower temperature than the stock unit, promoting earlier coolant circulation and significantly reducing the risk of engine overheating, especially beneficial for off-road adventures, towing, or modified vehicles.

Key Features and Benefits:

  • Lower Activation Temperature: Opens at 160°F (71°C), compared to the factory's 180°F (82°C), allowing for more efficient heat dissipation.
  • Enhanced Cooling: Ideal for warmer climates, high-performance applications, or heavy-duty use, maintaining optimal engine temperatures.
  • Direct Fit Replacement: Engineered for a precise fit in the 2003+ Toyota 4Runner 4.0L, ensuring easy installation.
  • Prevents Overheating: Crucial for protecting your engine from heat damage and ensuring long-term reliability.
  • Durable Construction: Built to withstand demanding conditions and frequent temperature fluctuations.

Vehicle Fitment:

This Mishimoto thermostat is compatible with:

  • 2003-Present Toyota 4Runner 4.0L
  • Also fits other Toyota models with the 4.0L engine, including the Tacoma, Tundra, FJ Cruiser, and select Lexus models (verify specific fitment).

Ensure your 4Runner's engine stays cool under pressure. Choose the Mishimoto 160°F Low-Temperature Racing Thermostat for superior cooling performance and reliability. Available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2003-2009 Toyota 4Runner Sport
2003-2021 Toyota 4Runner Limited
2003-2021 Toyota 4Runner SR5
2010-2016 Toyota 4Runner Trail
2015-2021 Toyota 4Runner TRD Pro
2018-2021 Toyota 4Runner SR5 Premium
2018-2021 Toyota 4Runner TRD Off-Road Premium
2020-2021 Toyota 4Runner Nightshade
2020-2021 Toyota 4Runner Venture
2021 Toyota 4Runner Trail
2007 Toyota FJ Cruiser TRD Special Edition
2007-2014 Toyota FJ Cruiser Base
2008 Toyota FJ Cruiser Trail Teams Special Edition
2005-2008 Toyota Tacoma Pre Runner
2005-2008 Toyota Tacoma X-Runner

Product Details

Product Description

About Mishimoto

Mishimoto is the modern leader in performance cooling — aluminum radiators, oil coolers, intercoolers, and silicone hoses for street, track, and tuner builds. Lifetime warranty on every Mishimoto product, with engineering tested at Bondurant and on track teams.

Watch in action

Mishimoto 160°F Low-Temperature Racing Thermostat for Toyota 4Runner

Upgrade your Toyota 4Runner 4.0L's cooling system with the Mishimoto 160°F Low-Temperature Racing Thermostat, designed for 2003 and newer models. This thermostat activates at a lower temperature than the stock unit, promoting earlier coolant circulation and significantly reducing the risk of engine overheating, especially beneficial for off-road adventures, towing, or modified vehicles.

Key Features and Benefits:

  • Lower Activation Temperature: Opens at 160°F (71°C), compared to the factory's 180°F (82°C), allowing for more efficient heat dissipation.
  • Enhanced Cooling: Ideal for warmer climates, high-performance applications, or heavy-duty use, maintaining optimal engine temperatures.
  • Direct Fit Replacement: Engineered for a precise fit in the 2003+ Toyota 4Runner 4.0L, ensuring easy installation.
  • Prevents Overheating: Crucial for protecting your engine from heat damage and ensuring long-term reliability.
  • Durable Construction: Built to withstand demanding conditions and frequent temperature fluctuations.

Vehicle Fitment:

This Mishimoto thermostat is compatible with:

  • 2003-Present Toyota 4Runner 4.0L
  • Also fits other Toyota models with the 4.0L engine, including the Tacoma, Tundra, FJ Cruiser, and select Lexus models (verify specific fitment).

Ensure your 4Runner's engine stays cool under pressure. Choose the Mishimoto 160°F Low-Temperature Racing Thermostat for superior cooling performance and reliability. Available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2003-2009 Toyota 4Runner Sport
2003-2021 Toyota 4Runner Limited
2003-2021 Toyota 4Runner SR5
2010-2016 Toyota 4Runner Trail
2015-2021 Toyota 4Runner TRD Pro
2018-2021 Toyota 4Runner SR5 Premium
2018-2021 Toyota 4Runner TRD Off-Road Premium
2020-2021 Toyota 4Runner Nightshade
2020-2021 Toyota 4Runner Venture
2021 Toyota 4Runner Trail
2007 Toyota FJ Cruiser TRD Special Edition
2007-2014 Toyota FJ Cruiser Base
2008 Toyota FJ Cruiser Trail Teams Special Edition
2005-2008 Toyota Tacoma Pre Runner
2005-2008 Toyota Tacoma X-Runner

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