Upgrade Aluminum Thermostat Housing Kit – Direct Replacement for Jeep Compass/Patriot (07-17), Dodge Journey (09-20) & Avenger (08-14) 2.0L 2.4L – Fix Overheating & Leaks

Why replace your thermostat housing?If you own a Jeep Compass, Patriot, Dodge Journey, or Avenger with the 2.0L or 2.4L engine, you’ve likely experienced the common failure of the original plastic thermostat housing. Over time, engine heat cycles cause the plastic to warp, crack, or leak at the seams. The result? Dripping coolant, rising temperature gauges, a stuck-open or stuck-closed thermostat, and an annoying check-engine light that won’t go away.Our solution – The Aluminum UpgradeThis kit replaces that flawed plastic assembly with a robust aluminum alloy housing. Aluminum offers superior thermal conductivity, which means it pulls heat away from the thermostats more efficiently. It also won’t soften or distort under high-mileage use. By upgrading, you’re not just fixing a leak – you’re preventing the same failure from happening again.What’s included & how it performsThe housing comes pre-assembled with both primary and secondary thermostats, along with a new temperature sensor and O-rings. The main stat opens at 78°C (172.4°F) for normal driving, while the secondary stat opens at 95°C (203°F) under heavy load – giving your engine precise two-stage cooling control. Every unit is pressure-tested at the factory to guarantee zero leaks upon installation.⚠️ Critical Fitment Note – Read Before OrderingThis kit is designed ONLY for 2.0L and 2.4L 4-cylinder engines. It does NOT fit the 3.6L V6 version. Please check your existing housing shape and engine code (look for ED1, ED2, or ED3 on the cylinder head). If your original housing has a single large outlet pipe on the driver side, this is the correct match. If you have two separate housings, this will not fit.Installation is straightforward – drain a small amount of coolant, remove the old housing, clean the mating surface, and bolt on this aluminum replacement using the included O-rings. Reinstall your radiator cap, refill coolant, and bleed the system. Most DIY mechanics complete the job in under 2 hours.Backed by factory quality control – each kit is individually inspected for casting defects, thread integrity, and seal fitment. If you have any fitment questions, use the “Ask a Question” button above – we reply within 24 hours.

• Complete Thermostat Replacement Kit – Includes 2x thermostats (pre-installed in housing), 1x aluminum housing, 2x sealing O-rings, and 1x temperature sensor. Everything you need for a direct swap – no extra parts to source.
• Upgrade from Plastic to Aluminum – The factory plastic housing warps and cracks over time, causing coolant leaks, overheating, and false check-engine lights. Our high-strength aluminum alloy housing dissipates heat faster, resists deformation, and outlasts the original plastic design – fixing the root cause of cooling system failures.
• Dual Thermostat Precision Control – Main thermostat opens at 78°C (172.4°F); secondary opens at 95°C (203°F). Paraffin-based thermal element delivers stable, responsive coolant flow regulation, ensuring your engine reaches optimal temperature faster and stays there.
• 100% Leak-Tested Before Shipping – Every unit undergoes strict pressure testing, thermal cycling (extreme hot-cold), and seal integrity inspection. We screen out any defects at the factory so you get a plug-and-play part that works right out of the box.
• Important Fitment Check – Direct replacement for 2.0L & 2.4L 4-cylinder engines in: Jeep Compass/Patriot (2007-2017), Dodge Journey (2009-2020), Avenger (2008-2014). Replaces OEM #68003582AB, 902319, 4884571AB, 06508355AA, 4884873AA, 55111016AD, 55111017AC. Please verify your engine code (ED1/ED2/ED3) and housing shape – this does NOT fit 3.6L V6 models.