new horizon
New member
I'm trying to nail down the year on my Mariner 15 hp. and my 5 hp . The fifteen is a 15M 684CS #030552 and the 5 hp is a 5M 6e3 S #136636. The other question I have is does anyone have any tips on stubborn head bolts or any stubborn bolts for that matter. Sure feels like there gonna snap before they break loose. Thanks to anyone for the help.