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Engine Coolant Thermostat

Engine Coolant Thermostat (Mishimoto) for 2003-2021 Toyota 4Runner, FJ Cruiser, Tacoma NEW

$ 89 .95
120-DayReturns
LifetimeWarranty
100%Money-Back

Product Notes Read before buying

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 (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.
Brand: Mishimoto
Condition: New
See All Other Engine Coolant Thermostats
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Specifications & Info


Attribute Value
Install Difficulty 2
SellingPoint01 Direct Fit For 2003+ Toyota 4runner 4.0l
SellingPoint02 Stock-style Housing Includes Pre-installed Low-temperature Thermostat For Easy Install
SellingPoint03 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)
SellingPoint04 Ideal For Use In Hot Climates, On Modified Vehicles, Or In Extreme Towing/driving Conditions
SellingPoint05 Mishimoto Lifetime Warranty
SellingPoint06 N/a
SellingPoint07 N/a
SellingPoint08 N/a
SellingPoint09 N/a
SellingPoint10 N/a
SellingPoint11 N/a
SellingPoint12 N/a
SellingPoint13 N/a
SellingPoint14 N/a
SellingPoint15 N/a
TechSpec Applications 2003+ Toyota 4runner 4.0l V6 (1gr-fe)--2007-2014 Toyota Fj Cruiser 4.0l V6 (1gr-fe)--2005-2015 Toyota Tacoma 4.0l V6 (1gr-fe)--2005-2014 Toyota Tundra 4.0l V6 (1gr-fe), 2003+ Toyota 4runner 4.0l V6 (1gr-fe)--2007-2023 Toyota Fj Cruiser 4.0l V6 (1gr-fe)--2005-2015 Toyota Tacoma 4.0l V6 (1gr-fe)--2005-2014 Toyota Tundra 4.0l V6 (1gr-fe)--2010 - 2023 Toyota Prado 4.0l V6 (1gr-fe)--2009 - 2023 Toyota Lc70 Series 4.0l V6 (1gr
TechSpec Chassis Codes N/a
TechSpec Engine Codes 4.0l V6
TechSpec Includes (1) Mishimoto Low-temp Thermostat--(1) Thermostat Housing W/ O-ring--mishimoto Lifetime Warranty
TechSpec Mishimoto Activation Temperature (F) 160
TechSpec Note N/a
TechSpec OEM Activation Temperature (F) 180

Vehicle Fitment Guide

This part fits the following vehicles:

Toyota 3 models (tapclick to expand)(tapclick to hide)
4Runner 2003-2021 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base SUV 2017 - 2018, 2020 - 2021 V6 4.0L 4WD Automatic
Limited SUV 2003 - 2021 V6 4.0L RWD/4WD Automatic
Limited SUV 2003 - 2009 V8 4.7L RWD/4WD Automatic
Nightshade SUV 2020 - 2021 V6 4.0L RWD/4WD Automatic
SR5 SUV 2010 L4 2.7L RWD/4WD Automatic
SR5 SUV 2003 - 2021 V6 4.0L RWD/4WD Automatic
SR5 SUV 2003 - 2009 V8 4.7L RWD/4WD Automatic
SR5 Premium SUV 2018 - 2021 V6 4.0L RWD/4WD Automatic
Sport SUV 2003 - 2009 V6 4.0L RWD/4WD Automatic
Sport SUV 2003 - 2009 V8 4.7L RWD/4WD Automatic
TRD Off-Road SUV 2017 - 2021 V6 4.0L 4WD Automatic
TRD Off-Road Premium SUV 2018 - 2021 V6 4.0L 4WD Automatic
TRD Pro SUV 2015 - 2021 V6 4.0L 4WD Automatic
Trail SUV 2021 V6 4.0L RWD Automatic
Trail SUV 2010 - 2016, 2021 V6 4.0L 4WD Automatic
Venture SUV 2020 - 2021 V6 4.0L 4WD Automatic
FJ Cruiser 2007-2014 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base SUV 2007 - 2014 V6 4.0L RWD/4WD Automatic & Manual
Core SUV 2009 V6 4.0L 4WD Automatic
Premium SUV 2008 - 2014 V6 4.0L 4WD Automatic
TRD Special Edition SUV 2007 V6 4.0L 4WD Automatic & Manual
Trail Teams Special Edition SUV 2008 V6 4.0L 4WD Automatic & Manual
Tacoma 2005-2008 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Crew Cab Pickup 2005 - 2008 L4 2.7L RWD/4WD Automatic & Manual
Base Crew Cab Pickup 2005 - 2008 V6 4.0L RWD/4WD Automatic & Manual
Base Extended Cab Pickup 2006 - 2008 L4 2.7L RWD/4WD Automatic & Manual
Base Extended Cab Pickup 2006 - 2008 V6 4.0L RWD/4WD Automatic & Manual
Base Extended Cab Pickup 2005 L4 2.7L RWD/4WD Automatic & Manual
Base Extended Cab Pickup 2005 V6 4.0L RWD/4WD Automatic & Manual
Base Standard Cab Pickup 2005 - 2008 L4 2.7L RWD/4WD Automatic & Manual
Base Standard Cab Pickup 2005 - 2008 V6 4.0L RWD/4WD Automatic & Manual
Base Prerunner Crew Cab Pickup 2006 V6 4.0L RWD Automatic
Pre Runner Crew Cab Pickup 2005 - 2008 L4 2.7L RWD Automatic & Manual
Pre Runner Crew Cab Pickup 2005 - 2008 V6 4.0L RWD Automatic & Manual
Pre Runner Extended Cab Pickup 2006 - 2008 L4 2.7L RWD Automatic & Manual
Pre Runner Extended Cab Pickup 2006 - 2008 V6 4.0L RWD Automatic & Manual
Pre Runner Extended Cab Pickup 2005 L4 2.7L RWD Automatic & Manual
Pre Runner Extended Cab Pickup 2005 V6 4.0L RWD Automatic & Manual
Pre Runner Standard Cab Pickup 2005 - 2008 L4 2.7L RWD Automatic & Manual
Pre Runner Standard Cab Pickup 2005 - 2008 V6 4.0L RWD Automatic & Manual
SR5 Prerunner Crew Cab Pickup 2006 - 2008 V6 4.0L RWD Automatic
TRD Sport Prerunner Crew Cab Pickup 2006 - 2008 V6 4.0L RWD Automatic
X-Runner Extended Cab Pickup 2006 - 2008 V6 4.0L RWD Manual
X-Runner Extended Cab Pickup 2006 V6 4.0L RWD Automatic
X-Runner Extended Cab Pickup 2005 V6 4.0L RWD Manual
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies, in plain English.

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Lifetime Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.

Returns (120 Days)

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.
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 (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.

Fits Years: 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021

Fits Models: 4Runner, FJ Cruiser, Tacoma

Expert Guide

A Practical Guide to the Engine Coolant Thermostat for the 2006-2016 Toyota Tacoma

Understand the common failure signs of your Tacoma's thermostat and learn how to choose the best replacement part for your truck.

 Read Full Guide →
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120
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NEW
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