WG9900243301 shift flexible shaft assembly (model Fine3300) is an important control component of Sinotruk Howo heavy truck transmission system. It connects the gear shift lever and gearbox, transmitting the shift operation force from cab to gearbox through inner steel wire rope, to realize gear shifting. The outer casing adopts high-strength wear-resistant plastic composite pipe with built-in steel wire reinforcement, featuring good bending resistance, compression resistance and anti-aging performance. The inner core is high-tensile steel wire, ensuring smooth and sensitive shift transmission, not easy to jam under vehicle vibration. Each flexible shaft assembly undergoes pull test, bending fatigue test and stroke inspection before delivery. It effectively solves the problems of difficult gear shifting, slow response and stuck shift. It is a common replacement spare part for gearbox control system maintenance. We maintain sufficient inventory and stable bulk supply for repair workshops, fleet operators, auto spare parts dealers and global cross-border export customers.