SE428 1.81:1 Ratio / 25" Shaft / 2 Stroke V6 / Counter Rotation 

The 90-428-A25 is a Counter Rotation (Left Hand Rotation) Gear Case. This gear case replaces most Yamaha 2 Stroke V6 3.1 and 3.2 Liter (225HP / 250HP) Engines with 1.81:1 Gear Ratio and 25 Inch Drive Shaft. For Counter Rotation only, do not use for Standard Rotation. The paint color for all lower units is transitioning to black as inventory becomes depleted. Therefore, color may vary depending on product availability at time of order
SE-428-1-81-25 Counter Rotation 60W-45300-20-8D