🌡️ Stay cool under pressure—upgrade your 4Runner’s heartbeat!
The Mishimoto MMTS-4RUN40-03 Racing Thermostat is a direct-fit, low-temperature thermostat designed specifically for 2003+ Toyota 4Runner 4.0L models. It activates at 71°C (160°F), significantly lower than the factory thermostat’s 82°C (180°F), enabling earlier coolant flow to reduce engine temperatures. Ideal for hot climates, modified vehicles, and extreme towing or driving conditions, it features a durable aluminum stainless steel housing and comes with a lifetime warranty for lasting reliability.
| Brand | Mishimoto |
| Model Name | MMTS-4RUN40-03 |
| Controller Type | Push Button |
| Specific Uses For Product | Hot climates, modified vehicles, extreme towing/driving conditions |
| Temperature Control Type | Thermostatic |
| Item Weight | 0.25 Kilograms |
| Voltage | 24 Volts |
| Material | Aluminum Stainless Steel |
| Display Type | digital |
| Control Type | Button Control |
| Control Method | Touch |
| Style | Compact |
| Backlight | No |
| UPC | 811580034282 843885023364 |
| Global Trade Identification Number | 00811580034282 |
| Country of Origin | USA |
| Item model number | MMTS-4RUN40-03 |
| ASIN | B07MCYD42F |
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