For Large Body 777 vacuum pumps used in dairy barns and milking systems. This is a fairly rare DeLaval pump. Double check model prior to ordering Complete rebuild kit includes 4 high quality long life Kevlar vanes, 2 bearings and 1 shaft seal. Set of vanes also available separately above. DLV777 Vacuum pump specs (5 HP) - 56 CFM - 995 RPM - 9.25 inch pump pulley - 5.25 inch Motor pulley - 5 hp motor Repair parts are not made or sold by DeLaval®. They are quality aftermarket parts sold satisfaction guaranteed.