Thermostat Housings

Upgrade your cooling system with CVF Racing Gen III Hemi Thermostat Housings, designed for compatible 5.7L, 6.1L, 6.2L, and 6.4L Hemi V8 engines. Also known as thermostat necks, water necks, or coolant outlets, these housings help direct coolant flow between the engine and radiator while providing a secure connection for your cooling system. Ideal for modern Hemi swaps, classic Mopar restorations, and custom Dodge and Plymouth performance builds, CVF Racing thermostat housings provide a clean, finished engine bay appearance. Whether you're replacing an existing housing or completing a custom cooling system, explore our selection of Gen 3 Hemi thermostat housings for your next build.