The Mack 64MT2105M Engine Timing Tachometer Sensor is a speed/timing sensor designed to fit Volvo and Mack equipment. This New Old Stock (NOS) sensor is manufactured by Volvo, ensuring quality and compatibility with the specified equipment makes. The sensor provides accurate readings for engine timing, ensuring optimal performance and efficiency in heavy equipment applications. With this product, heavy equipment operators can expect reliable and precise monitoring of engine timing, improving overall operation and reducing potential maintenance issues.