A-Premium Engine Coolant Thermostat Housing Assembly — Preassembled Housing with Gasket for Jeep/Chrysler (2011–2021)

A-Premium Engine Coolant Thermostat Housing Assembly with seal is a complete replacement unit (thermostat, gasket and housing) designed to restore correct coolant flow and engine temperature control on compatible Chrysler, Dodge, Jeep, Ram and VW Routan models.

This assembled thermostat housing is built to OEM-equivalent specifications for direct replacement where fitment matches. It combines the thermostat, molded housing and a pre-cut gasket so you receive a ready-to-install component that simplifies repair and reduces parts-sourcing time. The unit is produced to withstand normal thermal cycling and features build tolerances checked for crush and sealing performance.

Will this thermostat housing fit my vehicle?

Check vehicle year, make and model carefully before ordering. This assembly is intended for many FCA and related-platform vehicles; confirm the OEM reference numbers match your original part to ensure compatibility.

• Compatible models: Jeep Cherokee 2014–2021, Chrysler 200 2011–2017
• Also fits: Town & Country 2011–2016; Dodge Avenger 2011–2014; Grand Caravan 2011–2020; Journey 2011–2018
• Commercial/van fitment: Ram C/V 2012–2015, ProMaster 1500/2500/3500 2014–2021
• Volkswagen Routan 2011–2014 supported
• Cross-check OEM numbers: 902-3036, 5184570AG/AH/AI/AJ, 68136754AA, 7B0121111

How do I install the A-Premium thermostat housing assembly?

Installation is straightforward for technicians and experienced DIYers who are comfortable draining and refilling coolant and removing intake or trim that blocks access. Clean mating surfaces and bolt holes thoroughly to prevent gasket distortion or housing stress during reassembly.

• Drain coolant to below the housing level, then remove the old housing and thermostat.
• Scrape old gasket material and inspect bolt holes for damage; clean threads as needed.
• Install the included gasket and torque bolts to factory specs; refill and bleed the cooling system.
• Run the engine to operating temperature and check for leaks after the thermostat cycles once.

What are the benefits and quality checks of this replacement unit?

The assembly is subjected to hardness and crush tests during production to ensure structural integrity and sealing performance. Proper thermostat function helps the engine maintain designed operating temperatures, supporting emission control and component longevity.

• Pre-assembled with thermostat and molded gasket for easier fitting
• Manufactured to precise tolerances to reduce leak risk and premature failure
• Designed to restore proper coolant routing and thermal regulation
• Backed by A-Premium one-year unlimited-mileage guarantee

Are there important cautions or maintenance tips I should know?

Follow safe workshop practices: let the engine cool before opening the cooling system and properly dispose of drained coolant. Replacing the thermostat housing is a good time to inspect hoses, clamps and the condition of the coolant itself.

• Always use the correct coolant type and mix recommended for your vehicle
• Inspect hoses and clamps; replace any brittle or swollen lines
• Torque housing bolts to manufacturer specs to avoid cracking the housing
• Bleed the system to remove trapped air and verify thermostat operation

Who is this for: This A-Premium thermostat housing assembly suits car owners, mechanics and fleet technicians who need a complete, direct-fit replacement for the cooling system thermostat on supported Jeep, Chrysler, Dodge, Ram and Routan vehicles. It’s ideal when you want a single packaged unit—housing, thermostat and gasket—tested for structural integrity and covered by a one-year warranty, reducing downtime and parts guesswork.