Mishimoto Thermostats (MMTS-4RUN40-03) for a 2003-2021 Toyota 4Runner, 2005-2008 Toyota Tacoma and 2007-2014 Toyota FJ Cruiser. Mishimoto 2003 Toyota 4Runner 4.0L Low-Temperature Racing Thermostat.
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| Years | Make | Model | Trim | ||
|---|---|---|---|---|---|
| 2003-2021 | Toyota | 4Runner | SR5 | ||
| 2003-2009 | Toyota | 4Runner | Sport | ||
| 2003-2021 | Toyota | 4Runner | Limited | ||
| 2010-2016 | Toyota | 4Runner | Trail | ||
| 2015-2021 | Toyota | 4Runner | TRD Pro | ||
| 2017-2021 | Toyota | 4Runner | TRD Off-Road | ||
| 2018-2021 | Toyota | 4Runner | TRD Off-Road Premium | ||
| 2018-2021 | Toyota | 4Runner | SR5 Premium | ||
| 2020-2021 | Toyota | 4Runner | Venture | ||
| 2020-2021 | Toyota | 4Runner | Nightshade | ||
| 2021-2021 | Toyota | 4Runner | Trail | ||
| 2007-2007 | Toyota | FJ Cruiser | TRD Special Edition | ||
| 2007-2014 | Toyota | FJ Cruiser | Base | ||
| 2008-2008 | Toyota | FJ Cruiser | Trail Teams Special Edition | ||
| 2005-2008 | Toyota | Tacoma | Base | ||
| 2005-2008 | Toyota | Tacoma | Pre Runner | ||
| 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 (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.
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For more information on Mishimoto part number MMTS-4RUN40-03, you can visit the official Mishimoto website.
