New Thermostat Housing Assembly for 2017-2023 Cadillac XT5 XT6 GMC Acadia 3.6L

Thermostat Housing Assembly for Cadillac XT5 XT6 and GMC Acadia

This thermostat housing assembly replaces the cracked or leaking original unit on 3.6L V6 equipped vehicles, controlling coolant flow and sealing the housing to the engine.

Overview

This thermostat housing assembly is a complete replacement for the 3.6L V6 engine used across several GM models. It houses the thermostat and provides the mounting and sealing surface where coolant exits the engine. It suits owners and shops repairing a coolant leak or an overheating concern at the housing.

Built For Performance

• Complete assembly with housing and thermostat included
• Molded to match the original mounting points and hose connections
• Heat-resistant composite or metal body built for constant coolant exposure
• Sealing surface prepared for a clean gasket or O-ring fit
• Direct replacement for the factory housing on 3.6L V6 applications

Fits These Machines

• for Cadillac XT5 2017-2023
• for Cadillac XT6 2017-2023
• for GMC Acadia 2017-2023

On-The-Job Use

• Fixing a coolant leak at the thermostat housing
• Replacing a stuck thermostat causing overheating or slow warm-up
• Routine cooling system service on high-mileage 3.6L V6 engines
• Shop repairs where a complete bolt-on assembly saves time

Specs At A Glance

Good To Know

Q: Does this assembly come with the thermostat already installed? A: Yes, the thermostat is included in the housing so the unit installs as one piece, though you may still need a separate housing gasket depending on your engine.

Q: How do I know if my thermostat housing needs replacing? A: Common signs include coolant pooling near the housing, a low coolant warning, or temperature swings, all of which point to a failing housing or thermostat on the 3.6L V6.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.