Bobcat 863 Skid Steer Operator's Owners Operation & Maintenance Manual - Part Number # 6900937 Printed Bobcat 863 Skid Steer Operation & Maintenance Manual Manufacturer Part Number: Bobcat 6900937 Covers the Following Serial Numbers: S/N 514440001 & Above S/N 514540001 & Above S/N 514640001 & Above Brand New Sealed in Shrinkwrap Free Shipping within USA from Lowest Cost Books.