fits e.g. VW Polo (9N_) (please check exact vehicle application) Hall Sensor Corresponds to the original part in colour: Black HELLA crankshaft pulse sensors measure the crankshaft’s speed and position using the Hall effect, enabling precise control of engine timing and fuel injection. Ensures ideal measuring accuracy even at very low speeds (down to 0.1 km/h), and operates reliably across wide temperature ranges. Helps reduce maintenance and downtime, with a high-quality design built to OEM specifications for seamless integration. Built for durability-HELLA sensors are resistant to vibration, dirt, and moisture, delivering consistent performance over a long lifetime.