



🌡️ Stay cool, drive hotter: Upgrade your 4Runner’s heart with Mishimoto precision!
The Mishimoto MMTS-4RUN40-03 Racing Thermostat is a direct-fit replacement for 2003+ Toyota 4Runner 4.0L models, featuring a lower activation temperature of 71°C (160°F) to reduce engine heat earlier than the factory thermostat. Designed with a stock-style aluminum stainless steel housing for easy installation, it excels in hot climates and demanding driving conditions. Backed by a lifetime warranty, this thermostat ensures reliable cooling performance and enhanced engine protection.










| 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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