This truck speed sensor captures real-time rotational speed signals of the transmission output shaft and transmits data to the vehicle ECU. It provides accurate speed information for speedometer display and vehicle electronic control systems. The sensor adopts high-precision sensing chip and durable sealed housing, which can resist vibration, dust and water splashes under harsh driving conditions. Stable signal output ensures the normal operation of dashboard, cruise control and related electronic modules. Every speed sensor undergoes signal collection and durability testing before shipment. It resolves faults such as speedometer no display, signal jumping and inaccurate speed reading, serving as a key electronic replacement part for truck chassis maintenance.