Mishimoto MMTS-WRA-12E Thermostat with Housing for 2012-18 Jeep Wrangler JK 3.6L

Vehicle Fitment

• 2012-2018 Jeep Wrangler JK with 3.6 L V6 engine.
• Fitment confirmed through 2018; 2019+ or other engines unconfirmed at time of listing.

Features

• Precision thermostat with integrated housing - designed to match OEM opening temperature.
• High-quality aluminum housing for improved durability and leak resistance compared to factory plastic units.
• Includes metal bleeder screw for easier bleeding of the cooling system.
• Designed for improved thermal stability and consistent engine operating temperature under load.
• Plug-and-play direct fit - no modification to engine bay required.
• Ideal for daily drivers, off-road use or performance builds where reliable coolant control is critical.
• Backed by Mishimoto lifetime limited warranty for long-term peace of mind.

Specifications

• Part Number: MMTS-WRA-12E
• Material: Aluminum housing with precision thermostat valve.
• Rated Opening Temperature: Approx. 194 °F (OEM spec) - ensure correct spec for your engine.
• Included Housing: Yes, replaces stock thermostat housing assembly.

Included Components

• 1x Thermostat housing assembly with integrated thermostat.
• 1x Bleeder screw.
• Gasket/seal kit as required for installation.

Product Description

The Mishimoto MMTS-WRA-12E Thermostat with Housing is engineered for the 2012-2018 Jeep Wrangler JK equipped with the 3.6 L V6 engine. With a durable aluminum housing and precision thermostat built to match the OEM opening temperature, this unit provides a reliable upgrade to the factory plastic housing that is prone to warping or leaking under demanding conditions.

Installation is straightforward - remove the factory thermostat housing assembly, install the new unit using included gasket/seal, and bleed the system via the provided bleeder screw. This upgrade is ideal for vehicles used off-road, towing, or in high-load scenarios where cooling system durability is crucial.

Before purchasing, confirm your vehicle is a 2012-2018 Jeep Wrangler JK with the 3.6 L V6. If your engine is different or year outside this range, further compatibility verification is required.