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 yields 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.

PURCHASE INCLUDES

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

Low-Temp Thermostat, Fits Toyota 4Runner 4.0L 2003+

Name: Low-Temp Thermostat, Fits Toyota 4Runner 4.0L 2003+
SKU: MMTS-4RUN40-03

SKU: MMTS-4RUN40-03

$90.17

$67.95

Quantity

Toyota 4Runner 4.0L V6 (2003+)
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
Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”).

This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.
NOTE: Your vehicle requires 3 bottles of full strength coolant or 6 bottles of premixed coolant.

Mishimoto Liquid Chill® Synthetic Engine Coolant, Full Strength (2) [1.5 needed]

Mishimoto Liquid Chill® Synthetic Engine Coolant, Premixed (3)

Low-Temp Thermostat, Fits Toyota 4Runner 4.0L 2003+

FITMENT:

FEATURES:

SPECIFICATIONS:

INSTALLATION:

WARRANTY:

ADDITIONAL INFORMATION:

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