Sterndrive Engineering Mercury V6 Outboard Replacement Lower Unit 2:1, 20" DriveshaftNote for purchasing: You must verify your Gear Ratio. Call for application assistance if needed, and have your engine serial number ready when calling. SE206, 2:1, 20" Driveshaft; Replacement for Mercury 2.0, 2.4 and 2.5 liter V6 Engines - 135hp to 225hp; Comes with water pump.; Shipped without gear lube.; Please note these models use a plastic water pump.; SE 206 gearcases are not designed to replace Sport Master, Torque Master, CLE or other high performance gearcases. Click to Download SE 206 Lower Unit Installation InstructionsItem is subject to a 20% restocking fee (Boat Covers, Bimini Tops, Outdrives, Drop Ship Items and Special Order Parts)!**Year, Serial Number, and Horsepower are required to order. Please contact us with this information after you place your order otherwise processing will be delayed.