Komatsu 8A31-54-1110 Cushion Damper

The 8A31-54-1110 cushion damper is a rubber-to-metal bonded vibration isolator designed for cab mounting on Komatsu crawler bulldozers. It functions as a cabin mount to absorb shock and vibration transmitted between the cab structure and main frame, enhancing operator comfort and protecting cab components from structural fatigue. This part serves as a direct replacement for Komatsu OEM cabin mounts across multiple D-series dozer models. The component features a cylindrical rubber core bonded to metal inner and outer sleeves with integrated mounting flanges. It is engineered to meet OEM load deflection and durability specifications for heavy equipment operating in construction and mining environments.