2004 Esco Swing Boom and Bunching Grapple Off a 2004 CAT 517. This attachment was removed from a CAT 517 with 4,270 hours. Boom, grapple, and hydraulics are in good working order. Should also fit a CAT D4H series 3, CAT D5H and the CAT 517. Contact Erik @ Red Pine Equipment 218-720-0933. Attachment is located in Northcentral USA. ***SOLD***