Mercury MerCruiserMerCruiser - Gear Case Back Gear Housing 1600-8M0075782 Merucury MerCruiser Parts & Accessories Viewer:1454 Item No: 1600-8M0075782 Fits: 225/250 PRO XS (3.0L) - 250 PRO XS (3.0L DFI) You May Also Be Interested In Gear Case (Lower Unit) 1623-815822A53 Gear Housing 1623-8951A43 Complete Gasket Kit HS-711216 Bellows Assy 816431A1