Feature●FITS: For Mercruiser Mc-I, R, Mr, Alpha One, Alpha One Gen Ii, And Bravo Stern Drives! Ps: Not For Smart Craft Systems!●OEM PART NUMBER: 18-7633 805129A3 805130A2 805320A03 805320A1 17693A2 96863A15 63115A12 88678A4 88678A5.●EXCELLENT PERFORMANCE: Yeoflagtrade The Tilt And Trim Unit Allows You To Optimize The Performance Of Your Boat By Adjusting The Angle Of The Engine, Which, In Turn, Adjusts The Boats Running Surface!●EFFICIENT COMPATIBILITY: Produced To Meet Mercury Marine Original Equipment Manufacturer Specifications To Maximize The Performance Of Your Mercury And Mariner Outboard Or Mercruiser Stern Drive●NOTE: Before Purchasing A Replacement Tilt And Trim Switch, Please Review The Instructions In Detail Or Use The Year/Brand/Boat Model/And Interchangeable Part Numbers To Confirm Compatibility!Description