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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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For Your Every Summer RSVP, with Code: SUMMER15
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
4.2 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
It’s a bargain
Size: X-Large, Color: Navy-23
It’s a bargain, great outfit,
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
★★★★★ 3
Not made for cold weather.
Size: Large, Color: Brown-23
Quality and fit wasn’t that good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
★★★★★ 1
Not worth the money.
Size: Medium, Color: Brown-23
Quality is not as good as advertised. Color is much brighter than in the picture. Color is too sharp and loud. Shorter than appears in picture.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
★★★★★ 5
Happy Husband
Size: Large, Color: Brown-23
Gifted to my husband, he loves it. The fit, style & color is great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2026
★★★★★ 5
Buy it!!!
Size: Small, Color: Navy-23, Size: Small, Color: Navy-23
It’s super warm so great for early spring and autumn to walk around chilly European cities!
I’m athletic broad shoulders small waist
So I got a medium for more tailored fit.
5’10” 175lbs
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
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