Billet Specialties - LS Thermostat Housing 15-Degree Black

Enhance your GM LS-Series engine's cooling system with the Billet Specialties LS Thermostat Housing 15-Degree Black. Crafted from 6061-T6 billet aluminum, this housing offers durability and a sleek black anodized finish. It accommodates a 1-1/2” radiator hose and includes stainless steel mounting hardware for easy installation. Compatible with 2004-2009 LS water pumps featuring a 1.87” thermostat hole and a 2.99” center-to-center mounting bolt hole, it works seamlessly with LS-style thermostats and seals. Proudly made in the USA, this thermostat housing ensures optimal performance and a polished look for your engine bay.