Mishimoto Low-Temp Thermostat with Aluminum Housing

2007–2018 Jeep Wrangler

Part #: MMTS-WRA-12V2

Overview

The Mishimoto Low-Temp Thermostat is engineered specifically for the 2007–2018 Jeep Wrangler to optimize engine cooling performance. Designed to open at 180°F, this thermostat allows coolant to circulate earlier than the stock 203°F unit, helping to maintain lower engine temperatures. This feature is especially beneficial for drivers operating in warm climates or those who frequently tow heavy loads, as it reduces the risk of overheating and promotes consistent engine protection.

By improving thermal management, the Mishimoto thermostat enhances engine reliability and longevity, making it an essential upgrade for Jeep Wrangler owners seeking dependable cooling performance under demanding conditions.

Key Features

Built to deliver superior cooling efficiency and durability, the Mishimoto Low-Temp Thermostat offers the following key features:

• Opens at 180°F for earlier coolant flow compared to stock 203°F thermostats
• Helps reduce and maintain lower engine operating temperatures
• Ideal for warm climates, off-road use, and heavy towing applications
• Durable aluminum housing resists corrosion and heat damage
• Galvanized steel bleeder screw for easy air bleeding and enhanced longevity
• High-quality wax element ensures reliable and consistent operation
• Direct fitment for 2007–2018 Jeep Wrangler models for hassle-free installation
• Backed by Mishimoto’s Lifetime Warranty for peace of mind

Construction & Design

The thermostat features a robust aluminum housing that offers superior heat dissipation and corrosion resistance compared to standard plastic or cast iron housings. This design choice extends the service life of the thermostat, even under harsh operating conditions. The internal wax element is precision-engineered to respond accurately to temperature changes, ensuring the thermostat opens and closes at the correct thresholds to maintain optimal engine temperature.

The inclusion of a galvanized steel bleeder screw allows for efficient removal of trapped air in the cooling system, improving coolant flow and system reliability. Overall, the Mishimoto thermostat combines high-quality materials and thoughtful engineering to provide a durable, high-performance cooling component.

Installation & Fitment

This thermostat is a direct replacement for the factory unit on all 2007–2018 Jeep Wrangler models, requiring no modifications for installation. It fits seamlessly into the existing cooling system, making the upgrade straightforward for both professional mechanics and experienced DIY enthusiasts. Proper installation ensures improved thermal management without compromising the vehicle’s original cooling system design.

What's Included

• Mishimoto Low-Temp Thermostat with Aluminum Housing
• Galvanized steel bleeder screw
• Installation instructions

Ideal For

This thermostat is ideal for Jeep Wrangler owners who frequently drive in hot climates, tow heavy trailers, or engage in off-road activities that place additional thermal stress on the engine. It is also a smart upgrade for anyone looking to enhance engine cooling efficiency and prevent overheating during demanding driving conditions.

Mishimoto is a performance cooling brand offering aluminum radiators, intercoolers, oil coolers, hoses, and supporting hardware built to manage heat on hard-driven street and track vehicles. For boosted setups and towing/off-road rigs alike, Mishimoto upgrades are designed to increase cooling capacity and reliability where factory systems can become a limitation.