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HomeShopThermostatsMishimoto Low-Temperature Racing Thermostat and Housing for Toyota 4Runner 4.0L (2003-2024)
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Mishimoto Low-Temperature Racing Thermostat and Housing for Toyota 4Runner 4.0L (2003-2024)
Mishimoto Low-Temperature Racing Thermostat and Housing for Toyota 4Runner 4.0L (2003-2024) - Image 2
Mishimoto Low-Temperature Racing Thermostat and Housing for Toyota 4Runner 4.0L (2003-2024) - Image 3
Mishimoto Low-Temperature Racing Thermostat and Housing for Toyota 4Runner 4.0L (2003-2024) - Image 4

Mishimoto Low-Temperature Racing Thermostat and Housing for Toyota 4Runner 4.0L (2003-2024)

SKU: MMTS-4RUN40-03

Original price was: $99.00.Current price is: $89.95.

In stock

5 in stock

A defective thermostat can result in engine overheating and potential internal damage. Improve the reliability of your 2003-2024 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 (71?C/160?F) compared to the factory thermostat (82?C/180?F). 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. Low-Temp Racing Thermostat, fits Toyota 4Runner 4.0L 2003-2024
  • The lower activation temperature allows coolant to flow through the engine earlier, which reduces and maintains lower engine temperatures. (71C/160F compared to the factory thermostat at 82C/180F)
  • Ideal for use in hot climates, on modified vehicles, or in extreme towing/driving conditions
  • Stock-style housing includes pre-installed low-temperature thermostat for easy install
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Description

Enhance your Toyota 4Runner’s cooling system with the Mishimoto Low-Temperature Racing Thermostat and housing, designed specifically for models from 2003 to 2024 with a 4.0L engine. This direct-fit replacement improves thermal regulation by activating at a lower temperature of 71°C (160°F), compared to the stock thermostat’s 82°C (180°F), allowing coolant to circulate earlier for better engine temperature control. Such a feature is especially beneficial in hot climates, during high-performance driving, or when towing heavy loads, as it helps prevent overheating and potential engine damage. The included stock-style housing ensures a proper seal and straightforward installation, making it suitable for both stock and modified vehicles. Built with durability and reliability in mind, this thermostat and housing are backed by Mishimoto’s lifetime warranty, ensuring long-term performance and peace of mind. Whether you’re looking to improve cooling efficiency or support higher engine outputs, this thermostat is an excellent upgrade for your Toyota 4Runner’s cooling system, providing consistent temperature regulation under demanding conditions.

Features:

  • Lower activation temperature (71°C/160°F) for earlier coolant flow and lower engine temperatures compared to stock (82°C/180°F)
  • Ideal for hot climates, modified vehicles, or extreme towing and driving conditions
  • Stock-style housing with pre-installed low-temperature thermostat for easy and secure installation

Fitment:
Toyota 4Runner Limited 2003
Toyota 4Runner Limited 2004
Toyota 4Runner Limited 2005
Toyota 4Runner Limited 2006
Toyota 4Runner Limited 2007
Toyota 4Runner Limited 2008
Toyota 4Runner Limited 2009
Toyota 4Runner Limited 2010
Toyota 4Runner Limited 2011
Toyota 4Runner Limited 2012
Toyota 4Runner Limited 2013
Toyota 4Runner Limited 2014
Toyota 4Runner Limited 2015
Toyota 4Runner Limited 2016
Toyota 4Runner Limited 2017
Toyota 4Runner Limited 2018
Toyota 4Runner Limited 2019
Toyota 4Runner Limited 2020
Toyota 4Runner Limited 2021
Toyota 4Runner Nightshade 2020
Toyota 4Runner Nightshade 2021
Toyota 4Runner Sport 2003
Toyota 4Runner Sport 2004
Toyota 4Runner Sport 2005
Toyota 4Runner Sport 2006
Toyota 4Runner Sport 2007
Toyota 4Runner Sport 2008
Toyota 4Runner Sport 2009
Toyota 4Runner SR5 2003
Toyota 4Runner SR5 2004
Toyota 4Runner SR5 2005
Toyota 4Runner SR5 2006
Toyota 4Runner SR5 2007
Toyota 4Runner SR5 2008
Toyota 4Runner SR5 2009
Toyota 4Runner SR5 2010
Toyota 4Runner SR5 2011
Toyota 4Runner SR5 2012
Toyota 4Runner SR5 2013
Toyota 4Runner SR5 2014
Toyota 4Runner SR5 2015
Toyota 4Runner SR5 2016
Toyota 4Runner SR5 2017
Toyota 4Runner SR5 2018
Toyota 4Runner SR5 2019
Toyota 4Runner SR5 2020
Toyota 4Runner SR5 2021
Toyota 4Runner SR5 Premium 2018
Toyota 4Runner SR5 Premium 2019
Toyota 4Runner SR5 Premium 2020
Toyota 4Runner SR5 Premium 2021
Toyota 4Runner Trail 2010
Toyota 4Runner Trail 2011
Toyota 4Runner Trail 2012
Toyota 4Runner Trail 2013
Toyota 4Runner Trail 2014
Toyota 4Runner Trail 2015
Toyota 4Runner Trail 2016
Toyota 4Runner Trail 2021
Toyota 4Runner TRD Off-Road 2017
Toyota 4Runner TRD Off-Road 2018
Toyota 4Runner TRD Off-Road 2019
Toyota 4Runner TRD Off-Road 2020
Toyota 4Runner TRD Off-Road 2021
Toyota 4Runner TRD Off-Road Premium 2018
Toyota 4Runner TRD Off-Road Premium 2019
Toyota 4Runner TRD Off-Road Premium 2020
Toyota 4Runner TRD Off-Road Premium 2021
Toyota 4Runner TRD Pro 2015
Toyota 4Runner TRD Pro 2016
Toyota 4Runner TRD Pro 2017
Toyota 4Runner TRD Pro 2018
Toyota 4Runner TRD Pro 2019
Toyota 4Runner TRD Pro 2020
Toyota 4Runner TRD Pro 2021
Toyota 4Runner Venture 2020
Toyota 4Runner Venture 2021
Toyota FJ Cruiser Base 2007
Toyota FJ Cruiser Base 2008
Toyota FJ Cruiser Base 2009
Toyota FJ Cruiser Base 2010
Toyota FJ Cruiser Base 2011
Toyota FJ Cruiser Base 2012
Toyota FJ Cruiser Base 2013
Toyota FJ Cruiser Base 2014
Toyota FJ Cruiser Trail Teams Special Edition 2008
Toyota FJ Cruiser TRD Special Edition 2007
Toyota Tacoma Base 2005
Toyota Tacoma Base 2006
Toyota Tacoma Base 2007
Toyota Tacoma Base 2008
Toyota Tacoma Pre Runner 2005
Toyota Tacoma Pre Runner 2006
Toyota Tacoma Pre Runner 2007
Toyota Tacoma Pre Runner 2008
Toyota Tacoma X-Runner 2005
Toyota Tacoma X-Runner 2006
Toyota Tacoma X-Runner 2007
Toyota Tacoma X-Runner 2008

Additional information

Weight 0.6 lbs
Dimensions 6 × 4.3 × 3.8 in
air_freight_prohibited

false
not_carb_approved

false
ltl_freight_required

false
prop_65

Y
part_type

automotive
epa

N/A
carb_acknowledgement_required

false
regular_stock

t
upc

811580034282
brand

Mishimoto
part_number

MMTS-4RUN40-03

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