MarkIV Automotive Division designs, manufactures, and distributes a variety of high quality automotive systems and components to the global automotive industry. Products are sold to both OEM/OES and Aftermarket customers, primarily for engines, power transmission, and fluid and fuel handling systems.

MarkIV’s Power Train Division designs, manufactures and distributes diesel, gasoline engines and Power Pac.

MarkIV IVHS Division designs and manufactures RF based electronic toll collection and mobile commerce equipment for North American markets.

MarkIV IDS Division is a manufacturer of Information Display Systems (IDS), for mass transit, aircraft lighting, stationary and rail markets.