Introducing the OEM Coupling 135-13-31362/135-13-31361, perfect for KOMATSU Bulldozers such as the D53A-16 and D57S-1B. This high-quality torque converter housing ensures efficient performance, backed by a 12-month warranty. With rigorous testing and timely delivery, we guarantee reliability for your machinery. Explore our extensive range of spare parts today! Welcome to visit our website!