504559 Replacement XL1200 cast piston kit. std

This standard-size MCS replacement cast piston kit is designed for 1988-2003 XL1200 Sportster engines at the original bore dimension. With a 9:1 compression ratio, these cast pistons are well known for their low expansion rate and cost significantly less than OEM forged alternatives. Each piston includes one wrist pin and two wrist pin clips, while piston rings must be purchased separately. Ideal for a stock rebuild that restores factory performance and reliability. A qualified mechanic must verify component compatibility prior to installation, and standard break-in procedures should be followed for proper ring seating. A cost-effective choice for returning your XL1200 to dependable condition.