Sierra 18-5194 Ignition Coil for JohnsonEvinrude Outboards Sierra replacement ignition coil for JohnsonEvinrude Outboards. Primary Resistance 98 megaohms 105 megaohms Secondary Resistance 2.08 kiloohms 3.1 kiloohms Fits 65 HP 1972-1973 70 HP 1974-1975 75 HP 1975 85 HP 1973-1975 115 HP 1973-1975 135 HP 1973-1975 Interchangeable with CDI 183-4632 GLM 72050 JohnsonEvinrude Outboard 0502890 0581032 0582160 0584632 580821 Mallory 9-23105 Mercury Marine 802373 California Residents WARNING Cancer and