Mercury - 175hp Rear Decal V6 Pro XS Series Standard Marine Finish 8M0217482. Overview. There's a certain spark that comes with running a Mercury Pro XS the kind you feel when the boat lifts cleanly onto plane or when you throttle down after a long stretch across open water. These engines have a personality, a punch, and a reputation for being both tough and responsive. When the decal on the back starts to fade or peel, it doesn't feel right. Restoring it with a genuine Mercury 175hp Rear Decal