905285 Replacement XL 900cc cast piston. +.040"

This +.040" oversize cast piston is designed for 1957 to 1971 XL900 Ironhead models requiring a significant overbore. It maintains a standard 9:1 compression ratio, making it a perfect choice for a stock rebuild where reliability is the priority. Included in the box are the wristpin and wristpin clips, but you will need to purchase the appropriate rings separately. As with any major engine work, the technician must verify that this piston is suitable for the specific combination of components being used. Proper break-in and riding procedures are vital for the health of your overhauled engine. This quality replacement part is listed under OEM 905285.