859447A1 Replacement Gear Housing Skeg Precision die cast 360XK alloy for stronger, more uniform welds. Fits Mercury / Mariner 75/80 (4 cyl.), 90/115 (6 cyl.) and most Vā6 outboard models including 2.5L OptiMax. Has adequate depth for the 3.0L models but is not an exact silhouette of the original skeg
