Michigan Wheel propellers are designed for trouble-free service and easy repairability. By using only the finest grade alloys, Michigan Wheel aluminum propellers are stronger than most OEM propellers. The rubber hub bonded inside every Michigan Wheel propeller helps protect expensive shafts, motors, and gear boxes from potential damage caused by underwater impact. Vendor Part Number: 031015Applications: Force/Chrysler/U.S. Marine: 40-75 HP, 3-1/4" Gearcase, Thru Hub Exhaust, 13 Tooth Spline, 40 HP, 1995-1998; 50 HP, 1995-1998; 70 HP, 1991-1995; 75 HP, 1996-1998Mercury/Mariner/Sea Ray: 25-70 HP, 3-1/4" Gearcase, Thru Hub Exhaust, 13 Tooth Spline, 25 HP 4-Stroke Bigfoot, 1999-2005; 30 HP 2-Stroke, 1994-2002; 30 HP 4-Stroke, 1999-2005; 30 HP (Sea Pro/Marathon), 1994 & Newer; 35 HP, 1984-1989; 40 HP 2-Stroke (Includes Model 402), 1977 & Newer; 40 HP 4-Stroke (Not Bigfoot), 1997 & Newer; 40 HP (Sea Pro/Marathon), 1977 & Newer; 45 HP, 1986-1989; 48 HP (Mariner), All Years; 50 HP 2-Stroke (Includes Model 500), 1977 & Newer; 50 HP 4-Stroke (Not Bigfoot), 1995 & Newer; 55 HP, 1995 & Newer; 60 HP 2-Stroke, 1978 & Newer; 60 HP 4-Stroke (Not Bigfoot), 2001 & Newer; 70 HP (Includes Model 700), Thru 1983 Rubber hub Protects shafts, motors, & gear boxes | Michigan Wheel 3-Blade Prop, Pressed Rubber Hub / Aluminum, 11.25 dia x 10, RH