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Test Products, Inc. 

41255 Technology Park Dr, Sterling Heights, Michigan, 48314, United States


At TPI, we have been designing and manufacturing custom machined components for the automotive community since 1986. We pride ourselves in delivering quality machined parts in a timely, cost-effective manner. Several things set us apart from the competition. We are committed to quality and customer satisfaction and we show that commitment through our ISO 9001:2000 certification. We have an experienced mechanical design staff up-to-date in the latest 3d design software that can provide in-house design expertise, if required. While we are proficient with very large production runs, we are also very flexible and happy to build one-off prototype builds. Our 18,000 sq. ft. facility houses engineering, machining and assembly. Our goal is to build long term relationships with our customers by delivering high quality parts on time and at a reasonable price.

Manufacturing Capabilities

Company Details



MFG Member Since



United States


ISO 9001:2000



Ratings & Reviews From Buyers

4.00 (1)
Delivered high quality parts. Will consider them for future projects.
—Craig C, Lasergraphics, Inc.
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