Mercury 9.9HP

9.9HP 2-Stroke (8 Spline) 1986-2005

9.9HP 4-Stroke (12 Spline) 2005+

9.9HP 4-Stroke (8 Spline) 1995 - 2004

9.9HP 4-Stroke Bigfoot (14 Spline) 2005+

9.9HP 4-Stroke Bigfoot/Sail (10 Spline) 1999-2005