Rplc. 3-Wire Yamaha Trim/Tilt Motor With A High Performance 2-Wire Motor & Wire Harness/ Relay Kit. 3-Bolt Mount, O-Ring Included Fits 60-90 H.P. 1987-91, 115 H.P. 1984 & 60-90 H.P.1987-91 Rplc. Yamaha # 6H1-43880-00-00 PT609NM Mounting Flange Measures 70.5mm In Diameter Where O-Ring Seals To The Oil Reservoir & The Armature Shaft Flat Blade Is 4mm Thick. OE# 6H1-43880-00-00