Suzuki Lower Unit - DF200Z/225Z - 50040-93827-YAY. Genuine OEM Replacement for Reliable Outboard Power Transfer. The Suzuki L/u df200z/225z - 50040-93827-YAY is a factory-engineered lower unit assembly, specifically designed for Suzuki DF200Z and DF225Z outboards. This component is critical for converting engine power into propeller motion, ensuring smooth acceleration, stable handling, and optimal propulsion performance on the water.. Key Features. OEM Part Number: 50040-93827-YAY. Direct Fit f