MAHLE St. Johns, Michigan - 80 Years Strong

• Honoring the history and celebrating the future of MAHLE in St. Johns
• MAHLE is a staple in the piston ring business offering innovative solutions, coatings, and surface treatments for the automotive industry
• Supporting future engine performance with durable, low-friction, high-efficiency solutions

MAHLE proudly acknowledges the St. Johns, Michigan facility for reaching a major milestone. For 80 years, the piston ring plant has been delivering high-quality components to key customers around the world. Over 180 employees form and machine piston rings for automotive, commercial vehicle and industrial applications. As temperatures, pressures, and rotational speeds continue to rise, piston rings are subjected to ever increasing loads. Concepts for lower wear and friction, better sealing, and greater break resistance are in demand. MAHLE is therefore continuously developing new coatings and ring design variants offering optimal piston ring or piston ring packs for every engine. The broad range of products includes compression rings and oil control rings in various designs, profiles, and technologies. Applying innovative solutions for coatings and surface treatments, the St. Johns plant remains a staple in the future of the global automotive industry.

In 1946, the piston ring plant opened in St. Johns, Michigan. Over the years, the site has remained consistent in producing high quality parts with timely deliveries to the automotive industry. MAHLE acquired the facility in 2007, adding piston ring expertise to its engine part business sector in North America. This helped MAHLE boost headcount, create a stronger presence in the region, and strengthen its worldwide market position for piston ring technology.

“We proudly recognize St. Johns’ eight decades of innovation, dedication, and manufacturing excellence. This remarkable milestone reflects the hard work, resilience, and commitment of team members who have helped build a strong legacy and positioned the plant for continued success,” said Augusto Alonso, Vice President Powertrain and Charging North America at MAHLE. “I would like to congratulate and thank all current and former team members whose passion, expertise, and collaboration have contributed to this achievement, as well as the leadership team for their continued support into the future.”

MAHLE has 13 locations across the USA with the North American headquarters in Farmington Hills, Michigan. In 2025, the USA headcount totaled nearly 4,200. MAHLE plans to increase its presence and activities in the USA in the coming years as part of the company’s strategy to offer products to shape the future of mobility.