Detroit Diesel Corporation (DDC) and Volvo Penta of the Americas (VPA) have announced a mutual agreement to conclude their successful four-year collaboration which provided Detroit Diesel distribution rights for Compact and 6-16 liter inboard diesel engines and parts in North America. Effective February 1, 1999, Compact diesel inboard engines from 10-102 horsepower as well as 6-16 liter diesel inboard engines from 318-770 horsepower were transitioned back to VPA for engine, parts, sales, distribution, service and warranty.