Product Overview This complete hydraulic swing drive assembly includes both the swing motor and reduction gearbox, designed specifically for the CAT E307.5 mini excavator. It delivers reliable rotary power for the upper structure rotation of the machine, ensuring smooth and efficient operation in demanding working conditions. Part Number 487-6234 Interchange Part Numbers 589-5725, 487-6240 Compatible Machine CAT E307.5 Mini Excavator Assembly Type Complete swing drive (swing