Mishimoto 90 Degree Thermostat with Aluminum Housing: Jeep Wrangler (07-18) / Grand Cherokee (05-10)

Mishimoto Thermostat with Aluminum Housing

2007–2018 Jeep Wrangler, 2005–2010 Jeep Grand Cherokee

MMTS-WRA-12E

Overview:

The Mishimoto 90 Degree Thermostat with Aluminum Housing is engineered to maintain optimal engine temperatures for Jeep Wrangler (2007–2018) and Jeep Grand Cherokee (2005–2010) models. A reliable thermostat is critical to preventing engine overheating and avoiding costly internal damage. This thermostat is designed to open near the stock temperature, ensuring proper coolant flow and consistent engine performance. Featuring an upgraded aluminum housing and a galvanized steel bleeder screw, it offers enhanced durability and leak prevention, making it an excellent upgrade for Jeep owners seeking dependable cooling system components.

Whether you drive in extreme heat or cold climates, this thermostat ensures your engine runs at the ideal temperature, protecting your investment and improving overall vehicle reliability.

Key Features:

Designed with precision and durability in mind, the Mishimoto thermostat offers the following benefits:

• Opens at approximately 194°F, closely matching the OEM temperature of 203°F for accurate coolant regulation
• Upgraded aluminum housing for improved lifespan and resistance to corrosion
• Galvanized steel bleeder screw included for a tighter seal and easier coolant system maintenance
• Constructed with high-quality wax for consistent and reliable thermostat operation
• Designed specifically for Jeep Wrangler JK 3.6L and Grand Cherokee engines to ensure perfect fitment
• Helps prevent engine overheating and potential internal damage caused by faulty thermostats
• Suitable for use in all climates, from cold winters to hot summers
• Backed by the Mishimoto Lifetime Warranty, guaranteeing superior quality and craftsmanship

Construction & Design:

The thermostat features a robust aluminum housing that resists corrosion and extends the component’s service life compared to traditional plastic housings. Aluminum also provides excellent heat dissipation, contributing to more stable engine temperatures. The thermostat’s internal wax element is engineered for precise temperature activation, ensuring consistent opening and closing cycles that maintain optimal coolant flow.

Additionally, the galvanized steel bleeder screw enhances sealing capability and simplifies bleeding air from the cooling system during installation or maintenance. This combination of materials and design elements results in a thermostat that is both durable and reliable under demanding driving conditions.

Installation & Fitment:

Installation is straightforward and designed to be a direct replacement for the factory thermostat and housing on 2007–2018 Jeep Wrangler and 2005–2010 Jeep Grand Cherokee models. No modifications are necessary, and the included bleeder screw facilitates proper coolant system bleeding to prevent air pockets. This thermostat is compatible with the Jeep Wrangler JK 3.6L engine and the specified Grand Cherokee engines, ensuring a perfect fit and reliable operation.

What's Included:

• Mishimoto 90 Degree Thermostat with Aluminum Housing
• Galvanized steel bleeder screw for coolant system maintenance
• Installation instructions

Ideal For:

This thermostat is ideal for Jeep Wrangler and Grand Cherokee owners who want to maintain or improve their vehicle’s cooling system reliability. It is especially beneficial for those driving in extreme temperature conditions or who have experienced overheating issues due to faulty or aging thermostats. Enthusiasts seeking a durable, long-lasting replacement part with superior materials and backed by a lifetime warranty will find this Mishimoto thermostat an excellent choice.