The 10 X 16 A3R PROP Michigan Wheel Vortex is a high-performance aluminum boat propeller. The new 4-blade Vortex propellers are meant to enhance holeshots without compromising top-end speed. The redesigned, aggressive blade geometry combines with an additional cup for maximum acceleration and grip, while a smaller diameter aids in maintaining top-end speed. Available in a variety of configurations (9.9 HP through V6/V8 Outboard & Sterndrive). Additional features and Specifications: Aluminum design with high performance Outboards and inflatables both perform well. Powder coat finish in gloss black Engine Type: Honda, Mercury, Suzuki, Tohatsu, Yamaha (30-70) Number of splines: Determined by hub kit Hub kit: Required Manufacturer: Michigan Wheel Marine Exterior: Brushed For applications: JOHNSON, EVINRUDE: 1999 - 2005 40 HP 4-Stroke 1999 - 2005 50 HP 4-Stroke FORCE, CHRYSLER, UNITED STATES MARINE: 1995 - 1998 40 HP 1995 - 1998 50 HP From 1991 until 1995, a 70-horsepower engine was available. 1996 - 1998 75 HP HONDA: 1991-1994 BF 35 1995 and newer BF 40 1991-1994 BF 45 1995 and newer BF 50 / 50A 2010 and newer BF 60 / 60A MARINER, MERCURY: 1974 - 1976 40 HP (Model 402) 1974 - 1976 50 HP (Model 500) 1976, 60 HP (Mariner ). 1972 - 1976 65 HP (Model 650) MARINER, MERCURY: 1999 - 2005 25 HP 4-Stroke/Bigfoot 1994 - 2002 30 HP 2-Stroke 1999 - 2005 30 HP 4-Stroke 1994 and newer 30 HP (Sea Pro/Marathon) From 1984 through 1989, 35 HP was available. 1977 and 40 HP 2-Stroke (Includes Model 402) 1997 and newer 40 HP 4-Stroke (Not Bigfoot) 1977 and newer 40 HP (Sea Pro/Marathon) 1986 - 1989 45 HP All Years 48 HP (Mariner ) 1977 and 50 HP 2-Stroke (Includes Model 500) 1995 and newer 50 HP 4-Stroke (Not Bigfoot) 1995 and newer 55 HP (Mercury/Sea Pro/Marathon) 1978 and newer 60 HP 2-Stroke 2001 and newer 60 HP 4-Stroke (Not Bigfoot) 70 HP (Model 700 included) till 1983 TOHATSU, NISSAN: Thru 1984, 35 HP (35B Only) 40 HP (includes TLDI, 40C, M40D, and MD40) 1984 and after MFS40 2015 and Up 50 HP (excluding 50C, which includes TLDI, M50D, and MD50) 1992 and after MSF50 2015 and Up BFT60 2014 and Up YAMAHA: T25 HP (2010 and after) 2001-2005 F30 4-Stroke; 2015 and Newer 40 HP (including 40C) 1984 and after 1999 and newer F40 4-Stroke 1995 - 2000 48 HP 1984 and newer 50 HP (Not T50) 1995 and newer F50 4-Stroke From 1976 through 1995, the 55 HP was produced. From 1976 through 1991, a 60-horsepower engine was available. 1999 and newer F60 4-Stroke Standard 3 & 4-Blade