Tompkins Products Inc. was established in 1939 by Charles S. Tompkins as a supplier of screw machine products to the US government during World War II. Located in Detroit, Michigan we soon became a supplier to the growing US automobile industry. Almost 80 years later Tompkins Products is still owned and managed by the Tompkins family.

Since its founding in 1939, Tompkins Products has become one of the world’s leading producers of transmission valves for all OEM powertrains.

Tompkins partners with OEM engineers to research, design, test and produce pioneering solutions for transmission valve manufacturing. Let our experience help you get your ideas to market faster.

Tompkins products is proud to offer one stop full service precision – engineered, customer specific solutions. Products such as Transmission valves, Bushes, Spacers, Nuts, Washers, shafts, coupling, Plugs , Pins and assemblies are built to meet and /or exceed our customer requirements quickly and efficiently. Our application range from automotive powertrain, hydraulic industrial and consumer products, defense related products. Our plants are certified to IATF16949-2016.

We are worldwide suppliers of transmission valves for OEM powertrains, braking systems, steering systems and hydraulic systems. With our engineering capability and manufacturing expertise, we can solve complex challenges and help you achieve increased performance and optimal lifecycle cost.