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Speedometer Sensor WG2209280010 for Howo / Shacman Expertise: A high-precision electronic sensor designed for Sinotruk Howo and Shacman gearboxes. This magnetic induction sensor accurately tracks the rotation speed of the output shaft and transmits pulses to the speedometer and ECU. It features a high-grade polymer housing that is resistant to oil, road salt, and extreme temperature fluctuations. Service Station Experience: We recommend this genuine sensor because it ensures correct odometer readings and stable engine performance. In many modern trucks, an incorrect speed signal can cause the engine to enter "limp mode" or affect gear shifting logic. Non-genuine sensors often fail due to poor waterproofing, leading to signal "noise" or complete failure after a few months. Mechanic's Tip: Before replacing the sensor, inspect the electrical connector for corrosion. Often, the sensor is fine, but the wiring or pins are oxidized. When installing, ensure the sensor is seated fully and the mounting bolt is tight to prevent vibrations from distorting the signal.