Mishimoto Thermostat Aluminum Housing

2016–2026 Dodge Durango / 2016–2022 Jeep Grand Cherokee / 2018–2026 Jeep Wrangler / 2019–2026 Ram 1500 / 2020–2026 Jeep Gladiator 3.6L V6

Part #: MMTS-MOP-18E

Overview

The Mishimoto Thermostat with Aluminum Housing is a premium direct replacement designed specifically for Dodge, Jeep, and Ram vehicles equipped with the 3.6L Pentastar V6 engine from 2016 through 2026. This upgrade addresses the common failure points of the factory plastic thermostat housing by replacing it with a durable cast aluminum unit that resists cracking and coolant leaks. Calibrated to open at 195°F (90°C), it ensures your engine maintains optimal operating temperature for reliable cooling performance, improved fuel efficiency, and consistent drivability.

Ideal for daily drivers, off-road enthusiasts, and those who tow heavy loads, this thermostat housing upgrade enhances cooling system reliability and helps prevent costly overheating issues. It is engineered to fit perfectly on Jeep Wrangler JL and Gladiator models as well as Dodge Durango, Jeep Grand Cherokee, and Ram 1500 trucks within the specified years.

Key Features

Engineered for durability and precision, the Mishimoto Thermostat with Aluminum Housing offers significant advantages over the OEM plastic housing:

• Rugged cast aluminum housing replaces fragile plastic to eliminate common cracking and leaking issues
• Thermostat calibrated to open at 195°F (90°C) matching OEM specifications for accurate temperature control
• Premium wax pellet element ensures smooth, reliable valve operation under all driving conditions
• Designed specifically for 2016–2026 Dodge Durango, 2016–2022 Jeep Grand Cherokee, 2018–2026 Jeep Wrangler JL, 2019–2026 Ram 1500, and 2020–2026 Jeep Gladiator 3.6L V6 engines
• Maintains factory coolant flow characteristics to preserve engine performance and emissions compliance
• Improves cooling system reliability, reducing risk of overheating and expensive repairs
• Backed by Mishimoto’s Lifetime Warranty for long-term peace of mind

Construction & Design

The thermostat housing is crafted from high-quality cast aluminum, offering superior strength and heat resistance compared to the original plastic component. This robust construction withstands thermal cycling and mechanical stresses commonly encountered during towing, off-road driving, and daily use, preventing cracks and coolant leaks that frequently affect stock housings.

The thermostat features a premium wax pellet that expands precisely at 195°F (90°C), ensuring consistent and accurate valve operation. This precision engineering guarantees your engine reaches and maintains its ideal operating temperature, promoting optimal performance, fuel efficiency, and engine longevity.

Installation & Fitment

Installation is straightforward and designed as a direct bolt-on replacement for the factory thermostat and housing assembly on compatible Dodge, Jeep, and Ram models with the 3.6L Pentastar engine. No modifications or additional parts are required, making it an ideal upgrade for both enthusiasts and professional technicians. Standard hand tools are sufficient for the swap, and the enhanced durability of the aluminum housing reduces the likelihood of future coolant leaks.

What's Included

• Mishimoto thermostat calibrated to open at 195°F (90°C)
• Durable cast aluminum thermostat housing
• Gaskets and seals necessary for installation
• Installation instructions

Ideal For

This thermostat and aluminum housing assembly is perfect for Jeep Wrangler JL and Gladiator owners, as well as Dodge Durango, Jeep Grand Cherokee, and Ram 1500 drivers who demand enhanced cooling system reliability. It is especially suited for those who frequently tow, off-road, or operate their vehicles in extreme conditions where the factory plastic housing is prone to failure. Daily drivers seeking to prevent overheating and coolant leaks will also benefit from this durable, long-lasting upgrade.

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.