A-Premium Thermostat Housing Assembly for Buick & Chevrolet 1.4L — Complete Kit with Sensor, Thermostat & O-Ring

A-Premium Thermostat Housing Assembly with integrated sensor, thermostat, and O-ring replaces factory units to restore reliable engine temperature control on compatible Buick and Chevrolet 1.4L models.

This complete thermostat housing kit from A-Premium bundles the housing, thermostat, temperature sensor, and sealing O-ring in one package designed to match original equipment fit and function. It’s engineered as a direct replacement for common OE part numbers and crafted to meet the tolerances you expect when repairing cooling systems on compact GM 1.4L engines.

Which vehicles will this thermostat housing assembly fit?

This assembly is tailored for GM compact cars and crossovers with the 1.4L four-cylinder engine. It fits multiple Buick and Chevrolet applications across several model years for a straightforward swap with existing mounting points.

• Buick Encore 2013–2019 (L4 1.4L)
• Chevrolet Cruze 2011–2015 and Cruze Limited 2016 (L4 1.4L)
• Chevrolet Sonic 2012–2019 (L4 1.4L)
• Chevrolet Trax 2013–2019 (L4 1.4L)

What components are included and how do they compare to the original parts?

The kit arrives with the thermostat housing, a temperature sensor, the thermostat itself, and an O-ring gasket—everything needed to replace the original assembly in most cases. Materials and mounting hole placement match OE specifications to help ensure proper sealing and sensor operation after installation.

• Complete assembly: housing, thermostat, sensor, O-ring
• Three mounting holes to align with factory bracket points
• Replacement for OE references like 55565336 and 25200455

How will this part affect engine temperature control and reliability?

Replacing a worn or leaking thermostat housing with this kit helps restore accurate coolant flow and temperature sensing, aiding the engine’s ability to reach and maintain optimal operating temperature. While not a performance upgrade, it’s a critical maintenance item that reduces overheating or overcooling risks caused by failed housings or sensors.

• Restores reliable thermostat operation and coolant routing
• Replaces degraded seals to prevent coolant leaks
• Maintains correct sensor readings for engine management

What installation and warranty details should I know before buying?

Installation is typically direct: unbolt the old housing, swap the thermostat and sensor as needed, and torque the new unit to factory specs with the supplied O-ring. A-Premium backs this assembly with a one-year unlimited-mileage guarantee, giving added confidence for roadside longevity.

• Direct-fit design minimizes modification during installation
• Includes gasket and temperature sensor for a complete repair
• One-year unlimited-mileage warranty from A-Premium

Who this is for: This thermostat housing assembly suits DIY mechanics, independent service shops, and fleet technicians who need a full replacement that meets OE fitment for Buick Encore and multiple Chevrolet 1.4L models. Choose this kit if you’re repairing coolant leaks, replacing a failed thermostat or sensor, or completing routine cooling-system maintenance with a ready-to-install, OEM-style solution.