Yamaha Pin, Dowel (99530-10114-00) doesn't look like much-just a sleek 10 mm stainless-steel rod with softly chamfered ends-but it's the quiet reason your outboard pulls hard without extra vibration. Slide it into the crankcase or gear-case seat and the housings line up instantly, so gaskets seal, oil stays put, and bolts thread home without fighting mis-matched holes. Salt spray? No problem. Yamaha's corrosion-resistant finish keeps the surface smooth season after season.. Why keep a few in the kit?. OEM-exact fit for a wide range of Yamaha two-stroke and four-stroke platforms, from portable F2.5s to big-block V-6s. Hardened to 55 HRC to resist flattening under prop shock and knocking loads. Precision 14 mm length holds tighter tolerances than most aftermarket pins. Smooth lead-in radii let you press it home with a thumb, not a hammer. The practical payoff is simple: quicker rebuilds, truer alignment, and less wear on everything from main bearings to backing plates. At the price of a