{"product_id":"mishimoto-mmts-4run40-03","title":"Mishimoto MMTS-4RUN40-03 - 2003+ Toyota 4Runner 4.0L Low-Temperature Racing Thermostat","description":"\u003cp\u003eMishimoto MMTS-4RUN40-03 - 2003+ Toyota 4Runner 4.0L Low-Temperature Racing Thermostat\u003c\/p\u003e\u003cp\u003eRacing Thermostat, Low-Temp, fits Toyota 4Runner 4.0L 2003-2024\u003c\/p\u003e\u003cp\u003eEngine coolant thermostat designed to regulate coolant flow and maintain optimal operating temperature. Ensures efficient warm-up, prevents overheating, and supports reliable performance with a precise fit.\u003c\/p\u003e\u003cp\u003eA 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.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eStock-style housing includes pre-installed low-temperature thermostat for easy install\u003c\/li\u003e\n\u003cli\u003eThe 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)\u003c\/li\u003e\n\u003cli\u003eIdeal for use in hot climates, on modified vehicles, or in extreme towing\/driving conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eTechSpec Applications\u003c\/strong\u003e: \u003cspan\u003e2003-2024 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-FE) (GAS)--2022 - 2023 Toyota Hilux 4.0L V6 (1GR-FE)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eTechSpec Engine Codes\u003c\/strong\u003e: \u003cspan\u003e4.0L V6\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eTechSpec Chassis Codes\u003c\/strong\u003e: \u003cspan\u003eN\/A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eTechSpec Includes\u003c\/strong\u003e: \u003cspan\u003e(1) Mishimoto Low-Temp Thermostat--(1) Thermostat Housing w\/ O-Ring--Mishimoto Lifetime Warranty\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eTechSpec Note\u003c\/strong\u003e: \u003cspan\u003eN\/A\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eTechSpec Mishimoto Activation Temperature (F)\u003c\/strong\u003e: \u003cspan\u003e160\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eTechSpec OEM Activation Temperature (F)\u003c\/strong\u003e: \u003cspan\u003e180\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSellingPoint01\u003c\/strong\u003e: \u003cspan\u003eDirect fit for 2003-2024 Toyota 4Runner 4.0L\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSellingPoint02\u003c\/strong\u003e: \u003cspan\u003eStock-style housing includes pre-installed low-temperature thermostat for easy install\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSellingPoint03\u003c\/strong\u003e: \u003cspan\u003eThe lower activation temperature allows coolant to flow through the engine earlier, which reduces and maintains lower engine temperatures. 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