



❄️ Stay Cool, Drive Hot: Upgrade Your 4Runner’s Heartbeat
The Mishimoto MMTS-4RUN40-03 Racing Thermostat is a direct-fit, low-temperature thermostat designed for 2003+ Toyota 4Runner 4.0L models. It activates coolant flow earlier at 71°C (160°F) compared to the factory 82°C (180°F), reducing engine temperatures for enhanced performance in hot climates and demanding conditions. Featuring a stock-style housing for easy installation and constructed from durable aluminum stainless steel, it comes with a lifetime warranty for lasting peace of mind.










| Manufacturer | Mishimoto |
| Brand | Mishimoto |
| Model | Mishimoto MMTS-4RUN40-03 Toyota 4Runner 4.0L Low-Temp Racing Thermostat, 2003+ |
| Product Dimensions | 12.7 x 7.62 x 10.16 cm; 251 g |
| Item model number | MMTS-4RUN40-03 |
| Manufacturer Part Number | MMTS-4RUN40-03 |
| OEM Part Number | 160310P010 |
| Mirror Adjustment | Button Control |
| Material | Aluminum Stainless Steel |
| Colour | Mmts-4run40-03 |
| Assembly Required | No |
| Voltage | 24 Volts |
| Manufacturer | Mishimoto |
| Country of Origin | USA |
| Item Weight | 251 g |
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