Defiance Precision Products

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GT Technologies was founded in 2002 with the merger of two valve train suppliers, Toledo Technologies and Defiance Precision Products. GT Technologies is one of the world s leading companies in the design, development and supply of performance-critical valve train components for a range of gas and diesel engines in the United States. The company s product line includes roller finger followers, rocker arm assemblies, lash adjusters and cam follower rollers. It also provides hydraulic and mechanical roller tappets, rocker shaft assemblies, and roller bearings and axles. GT Technologies serves the transportation, power generation, motorsports and recreational industries. The company is a part of GenTek, which operates several companies that manufacture industrial components and performance chemicals.