25HP 2-Stroke (13 Spline) 1978-1983
25HP 2-Stroke (14 Spline) 1984-1998
25HP 2-Stroke (Pin Drive) 1977
25HP 2-Stroke Sportster (Pin Drive) 1969-1976
25HP Commercial (13 Spline) 1978-1991
25HP Commercial (14 Spline) 1992-2001
25HP E-Tec (14 Spline) 2009-2010
25HP E-Tec (14 Spline) 2011-2014
25HP E-Tec (14 Spline) 2015-2020
Solas