504561 Replacement XL1200 cast piston kit. +.005"

This +0.005-inch oversize MCS replacement cast piston kit is designed for 1988-2003 XL1200 Sportster engines with very light cylinder wear. Maintaining the standard 9:1 compression ratio, these cast pistons deliver factory-correct performance with the low expansion rate and affordability that cast construction is known for. Each piston includes one wrist pin and two wrist pin clips, with piston rings sold separately. The minimal oversize suits engines needing only a light hone to refresh the cylinder surface. A qualified mechanic should verify all component compatibility before installation. Standard break-in procedures must be followed to ensure proper ring seating and maximum engine longevity.