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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
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Description
Mishimoto 2003+ Toyota 4Runner 4.0L Low-Temperature Racing ThermostatA 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
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.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023 | Toyota | 4Runner | 40th Anniversary Edition |
| 2003-2024 | Toyota | 4Runner | Limited |
| 2020-2021 | Toyota | 4Runner | Nightshade |
| 2003-2009 | Toyota | 4Runner | Sport |
| 2003-2024 | Toyota | 4Runner | SR5 |
| 2018-2024 | Toyota | 4Runner | SR5 Premium |
| 2010-2016,2021-2022 | Toyota | 4Runner | Trail |
| 2017-2024 | Toyota | 4Runner | TRD Off-Road |
| 2018-2024 | Toyota | 4Runner | TRD Off-Road Premium |
| 2015-2024 | Toyota | 4Runner | TRD Pro |
| 2022-2024 | Toyota | 4Runner | TRD Sport |
| 2020-2021 | Toyota | 4Runner | Venture |
| 2007-2014 | Toyota | FJ Cruiser | Base |
| 2008 | Toyota | FJ Cruiser | Trail Teams Special Edition |
| 2007 | Toyota | FJ Cruiser | TRD Special Edition |
| 2005-2015 | Toyota | Tacoma | Base |
| 2005-2015 | Toyota | Tacoma | Pre Runner |
| 2015 | Toyota | Tacoma | TRD Pro |
| 2005-2013 | Toyota | Tacoma | X-Runner |
| 2005-2013 | Toyota | Tundra | Base |
| 2014 | Toyota | Tundra | SR |
| 2005-2011 | Toyota | Tundra | SR5 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
price fair for the value
Simple but effective addition to a daily routine. The stainless steel feels sturdy and much nicer than plastic versions, and the dual handles make it easy to control. It cleans well without feeling harsh and rinses off quickly after use. Compact enough to toss in a toiletry bag too. Good basic hygiene tool that does what it’s supposed to.
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Reviewed in the United States on February 16, 2026
★★★★★ 5
Works every time!
These mint keeps my mouth moist at night!
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Works great
As a cpap user, this has made the use much more comfortable. Lasts all night and has subtle flavor.
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Reviewed in the United States on March 26, 2026
★★★★★ 5
Actually helps dry mouth!
I’m giving this product 4.5/5. It works really well for dry mouth during sleep. I recommend starting with 1 tablet and adding a second one only if necessary. (I require 2 tablets at night). This is called “slightly sweet” and is relatively tasteless with a hint of sweetness.
During daytime usage, I’ve been using 2 tablets at a time. The only issue I have during the day is that if I can’t drink on a regular basis I get the white coating from the tablets in the corners of my mouth. I do think that this is the next best product to use when taking sips of water isn’t possible. Works as stated and easily adheres to your gum line/partial tooth. I place them in the back of my mouth and they are not noticeable to others. Added bonus, they don’t leave a slimy coating on your teeth the way a mouth rinse does. Product performs better than expected! If you have dry mouth for any reason please consider giving these a try!!! I wish I would have known about them years ago!!!
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Reviewed in the United States on August 9, 2023
★★★★★ 5
Works for dry mouth
Suffer from dry mouth and these disc size tablets stick to my gums, helping keep my mouth moist through the night. Brown side sticks to your gum. Contain xylitol so s little sweet. Dentist recommended them.
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Reviewed in the United States on October 28, 2025