AT360574 wheel speed sensor, professional replacement part for John Deere 850J and 850K crawler dozers. High-precision sensing element accurately detects real-time wheel speed and transmits stable electrical signals. Heavy-duty sealed design features dustproof, waterproof and anti-vibration performance, ensuring reliable operation in harsh construction environments. Easy to install and perfectly compatible with original equipment, it is an ideal replacement for damaged or aging sensors to maintain normal operation of the dozer's speed monitoring system.