Sierra 18-5403 Rotor Sierra replacement rotor for Prestolite 7013 and Ford GM 6 8 Cylinder engines with Prestolite Conventional Ignition. Use with 18-5299 Electronic Conversion Kit Interchangeable with Crusader 41074 41089 GLM 71060 71130 JohnsonEvinrude Outboard 982880 3853801 Mallory 9-29203 9-29214 Mercruiser Stern Drive 392-9089 392-9089T 392-9767 9089Q FI6900186 FI6900190 OMC Stern Drive 982880 3853801 Pleasurecraft R103004 Volvo Penta 841907 3853801 855845 California Residents WARNING Ca