Mercury - 175hp Rear Decal V6 FourStroke Series Standard Marine Finish 8M0217478. Overview. There's something about glancing back at your engine before heading out-almost like a quiet handshake between you and the machine you trust. A clean, sharp decal brings that moment to life. The Mercury 175hp Rear Decal 8M0217478 keeps your V6 FourStroke looking the way it was meant to look: bold, confident and ready for water that never sits still. Whether you're cruising a wide stretch of inland lake or