Konrad Marine designs and manufactures stern drives for commerical, military, recreational and high performance applications. Since 1991, Konrad stern drives have been hard at work, worldwide, with proven reliability, strength, and performance. Konrad stern drives are the hardest working, longest lasting, toughest stern drives / outdrives ever made. If you're looking for a stern drive that will give you BOTH the performance and quality you demand you've come to the right place.