We are a factory manufacturing high-quality spare parts for Caterpillar excavators, such as the Swing motor Planet Carrier Assembly, Travel Reduction gearbox, and Swing Gearbox for models E313B, E313C, E313D, E313D2, and E313F. Our products are designed to provide excellent performance and durability. Built with precision, our Swing motor Planet Carrier Assembly ensures smooth and efficient swing motion for your excavator. The Travel Reduction gearbox guarantees reduced speed with increased torque, enabling efficient digging and excavating operations. The Swing Gearbox offers reliable and robust power transmission for the swing mechanism. Trust our factory for superior quality excavator spare parts that meet your specific requirements.