504562 Replacement XL1200 cast piston kit. +.010"

This +0.010-inch oversize MCS replacement cast piston kit fits 1988-2003 XL1200 Sportster engines requiring a light overbore to address minor cylinder wear. With a 9:1 compression ratio, these cast pistons provide factory-specification performance at a fraction of OEM forged piston cost. Well known for their low expansion rate, cast pistons offer predictable clearance behaviour across operating temperatures. Each piston includes one wrist pin and two clips, with rings purchased separately. Professional installation with component compatibility verification is essential. Following standard break-in and riding procedures ensures proper ring seating for a reliable, long-lasting XL1200 Sportster rebuild.