C-Tzu Aluminium Thermostat Housing — Direct-Fit for Chevy Aveo5, Cruze; 2‑Pin Sensor, 203°F

If your vehicle is temperamental around engine temperature or you've seen leaks or cracks in the original plastic housing, this aluminium replacement offers a durable alternative designed to match OEM fitment. Built to resist heat and pressure, the unit is compatible with several GM small-car platforms, including Chevy Aveo5, Cruze, Sonic, Trax and Pontiac G3 across the years listed, and replaces the common OE references such as 96984104 and 55564891.

How does this assembly improve cooling system durability?

The housing's aluminium construction tolerates higher temperatures and resists warping or splitting that can occur with plastic housings. That reduces risk of coolant loss and helps maintain stable engine operating temperature under stress.

• Solid aluminium body for greater heat resistance and longevity
• Precision-machined mating surfaces to reduce gasket leaks
• Thermostat opening at 203°F / 95°C for consistent temperature regulation

Will it fit my car and replace the original part numbers?

This assembly is designed as a direct replacement for many GM part numbers, offering bolt-on compatibility with the listed models and years. Compare OE numbers to ensure match before ordering; professional fitment is recommended to confirm compatibility.

• Fits Chevy Aveo5 2009–2011, Cruze 2011–2016, Sonic 2012–2018, Trax 2013–2018
• Replaces numbers including 902-821, 96984104, 55564891, 55578419 and more
• Designed for straightforward swap with existing mounting points and hoses

Does the unit include sensor integration and how accurate is it?

The housing is supplied with a 2-pin sensor port so the vehicle's temperature feedback remains accurate and responsive. Integrating the sensor avoids the need for aftermarket adapters and preserves ECU temperature readings.

• Built-in 2-pin sensor interface for direct electrical connection
• Maintains original sensor location for reliable temperature reporting
• Helps prevent false readings that can affect cooling fan operation

What should I expect during installation and maintenance?

Installation is intended to be direct and typically does not require full engine disassembly, though access to the thermostat area is necessary. Replace the gasket and check hose clamps during reassembly to ensure a leak-free installation.

• Direct-install design—no extensive engine teardown required
• Use new gasket and proper torque on mounting bolts
• Recommended coolant flush or top-up after fitting to remove air pockets

Who is this for: This aluminium thermostat housing is aimed at owners and technicians working on compatible small GM vehicles who want a more durable alternative to OEM plastic housings. It's suited for drivers repairing a leaking or cracked thermostat housing, anyone seeking improved temperature stability, and repair shops replacing frequently failing plastic components.