Michigan Wheel Aluminum Propellers For Chrysler, Force, or US Marine Engines. Please select horsepower from the application chart below. 3.5-3.6 HP Pin Drive 3.5-3.6 HP 1969-76 3.5-8 HP Non-Thru Hub Exhaust & 9 Tooth / Pin Drive 3.5 HP 1980-84 4, 4.4, 6, 6.6, 7, 7.5 & 8 HP 1968-88 5 HP 1987-98 6-10 HP Non-Thru Hub Exhaust & 14 Tooth / Pin Drive 6-10 HP Sailor 1976-78 Sailor 180-250 1979-84 25 HP Thru Hub Exhaust & 10 Tooth Spline 25 HP 3 Cyl 1995-98 20-60 HP Non-Thru Hub Exhaust & 14 Tooth / Pin Drive 20-25 HP 1979-81 30 HP 1966-82 35 HP 1966-91 40 HP 1992-94 45 HP 1966-84 50 HP 1982-94 55-60 HP 1966-84 40-75 HP Thru Hub Exhaust & 13 Tooth Spline 40, 50 HP 1995-98 70 HP 1991-95 75 HP 1996-98 70-140 HP Non-Thru Hub Exhaust & 15 Tooth Spline 70-140 HP 1977-89 85-150 HP • SINGLE EXHAUST UNITS Thru Hub Exhaust & 15 Tooth Spline 85, 125 HP 1988-89 90 HP L-DRIVE 1989-91 90, 120 HP 1990-94 120 HP L-DRIVE 1989-91 150 HP L-DRIVE 1991 150 HP 1989-94 75-150 HP • DUAL EXHAUST UNITS • (Using Mercury Gearcase - See Below) Thru Hub Exhaust & 15 Tooth Spline † For dual exhaust units only & requires thrust washer 23-819057 †† For all units 1995 thru current. Requires thrust washer 13191A1 75 HP †† 1999 & Newer 120 HP †† 1995-98 150 HP† 1989-94 90 HP L-Drive † 1990-91 90, 120 HP L-Drive † 1990-91 150 HP L-Drive † 1991