504563 Replacement XL1200 cast piston kit. +.020"

This +0.020-inch oversize MCS replacement cast piston kit is designed for 1988-2003 XL1200 Sportster engines with moderate cylinder wear. Retaining the standard 9:1 compression ratio, it delivers factory performance at an accessible price point. These cast pistons are well known for their low thermal expansion rate and cost significantly less than forged OEM alternatives. Each piston includes one wrist pin and two wrist pin clips, with piston rings sold separately. A popular oversize choice that addresses typical wear patterns while leaving room for future service. Professional installation and standard break-in procedures are required for proper ring seating and maximum engine life.