The Sierra 18-5186 Ignition Coil replaces Mercury 338-4774A1, Mercury 338-4995A1, Mercury 338-4995A2 for Mercury Outboard applications. It generates the high voltage required to fire the spark plug in the ignition system.
What is Sierra 18-5186?
Sierra 18-5186 is an aftermarket ignition coil for Mercury Outboard applications.
Which part numbers cross-reference Sierra 18-5186?
This listing cross-references Mercury 339-832757A4, Mercury 8M0219430, Mercury 338-4774A1 and Mercury 338-4995A1. See the Cross References & Alternative Products section above for linked alternatives where available.
Easy to install. I accidentally ordered the wrong part first and they sent me a return post envelope and I returned the product for a full refund and repurchased the correct one. Very happy ?
Australian Dollars
