5780 Moore Rd
Williamsburg, MI 49690
Founded in 1981, Grand Traverse Plastics Corp. is a Michigan custom injection molding company that specializes in the manufacturing and assembly of automotive plastic parts. Our error proofed manufacturing processes yield outstanding quality performance, while our full service engineering and R&D capability allow us to manage your program from quotation to production. We support simultaneous engineering, value analysis and value engineering, and provide local support for all program management activity.
We take pride in the speed and attention to detail applied to serving our customers. When the day is done, all suppliers are judged by the effort required of their customers, to maintain a business relationship. We believe the effort is minimized by the way we manage the relationship.
We enjoy a preferred supplier status with our customers and have received both the GM and GM Power Train Supplier of the Year Awards. Our mission is to manufacture automotive plastic products with zero defects and to deliver 100% of them on time.