MSW M54 Billet Thermostat Housing
Morehead Speed Works Billet M54 Thermostat Housing – Nickel Plated (Used)
This is a used Morehead Speed Works billet thermostat housing for BMW M54 engines, finished in nickel plating and including a silicone gasket. This is a highly desirable upgrade with a $300 retail value.
Shown and sold as-is.
Designed for reliability, serviceability, and track use, this upgrade eliminates common factory weaknesses while adding modern sensor and bleeding capability.
Key Features & Benefits:
Converts M54 to a standard mechanical thermostat
Improves reliability over the factory electronically-controlled unit
Compatible with any M20 or M50-style thermostatBuilt-in bleed pass-through port
Allows trapped air to purge quickly for easier cooling-system bleedingBrass bleed screw integrated into the housing
Makes bleeding air from the head and block fast and simpleDual 1/8-27 NPT ports (2x)
One on the hot side
One on the cold side
Perfect for adding temperature and/or pressure sensors
Barbed hose fittings
Designed to use standard E46 M3 upper and lower radiator hoses
Eliminates the failure-prone BMW clip-on hose design and makes trackside repairs faster and easier
Included:
Morehead Speed Works Billet M54 Thermostat Housing
Silicone gasket
This is an excellent upgrade for race cars, track builds, engine swaps, and high-reliability street cars—especially for anyone wanting better bleeding, easier sensor integration, and improved cooling system durability.

































