Founded in 1964, Mercury Manufacturing Company (MMC) is an ISO 9001 accredited Precision Component Manufacturer specializing in the design and manufacture of Pressure Relief, Solenoid and Check Valves in addition to other unique machined assembly products.

Located in Wyandotte, Michigan, MMC supplies precision manufactured components and assemblies around the globe, with specific focus on the markets of; Automotive, Heavy Truck, Off Highway, Refrigeration, Marine, Renewable Energy, Gas and Oil, Heating, Ventilation and Air Conditioning for Residential, Commercial and Industrial applications.

MMC’s ability to design and manufacture custom Valves and Assemblies has assisted in establishing MMC as a market leader in Valve technology. With custom manufacturing and the capability to perform 100% inspection on critical performance criteria we are able to provide premium quality product to our strategic Partners around the world.

From initial customer conception to finished production material, MMC has the ability to support our strategic Partners through every step of the design, validation and manufacturing process. Our dedicated project teams will ensure compliance to key project deliverables including, timing, cost, delivery and quality.

In-house design and product validation testing enables MMC to respond efficiently to customer requirements thereby enabling optimized product design and manufacturing solutions.



Jan Weigand, President