Belt drive for alpha one. Sterndrive Engineering, Inc. The reliable Alpha One drive is one of the most popular outdrives in the world. (SEI) manufactures a stern drive designed to replace Mercury Marine's MerCruiser®, Alpha One®, R, MR, Gen II, Bravo One®, Bravo Two® and Bravo Three® stern drives. These include the common "R" sterndrive, 888 sterndrive, 898 sterndrive, I and MR as well as others. Click on the serial number range below for 1998 and newer Alpha One Gen II drive detailed parts diagrams with pictures. This versatile drive system, introduced in 1991, pairs with inboard automotive-derived engines up to 300 HP and remains a top choice among boaters. sterndrive parts,Alpha 1 sterndrives,mercury sterndrives alpha one sterndrives,bravo sterndrives,alpha 1 drive parts,mercruiser gimbal bearings,mercruiser sterndrives For units with exhaust bellow 1973-1990 Mercruiser outdrives and Alpha One outdrives serial #6225577 We have new alpha one sterndrives,bravo sterndrives,alpha 1 drive Most small block customers should simply save some money and stick with the Alpha One. . The efficient hydrodynamic profile produces very little drag, which means better boat performance and fuel economy. Find your OEM Alpha One, Gen 2 parts here. Mercruiser produced several models of sterndrives before the Alpha One was introduced. For high horsepower applications, consider the new Bravo XZ and XR Sterndrives. Available for single and twin engine applications, standard and counter-rotating. Available in both standard and counter rotation configurations, this replacement drive delivers reliable performance for your vessel. ynsz qqwhd cnoscu gmilq mccpno hdryon jvmnk akpd xvveu hdhkw