Dealing with coolant leaks or overheating in your GM truck or SUV? This upgraded aluminum thermostat housing might be the fix. It's designed to replace the OEM plastic housing that can warp or crack over time. Made from durable aluminum alloy, it withstands high temperatures better and resists leaking. It fits a wide range of vehicles from 2014-2020, including Cadillac Escalade, Chevrolet Silverado, Suburban, Tahoe, Corvette, GMC Sierra, Yukon, and more (check the full list to confirm compatibility). It replaces part numbers like 12666569, 15-11125, and others. The housing comes with a gasket and features a precise fit with tight rubber seals and strong springs to prevent leaks. The thermostat opens at 98°C (208.4°F) and is fully open at 113°C (235.4°F). Installation is straightforward—just remove the old housing, clean the surface, and bolt this one on with the included hardware. A reliable upgrade that helps protect your engine from overheating damage.
