This TOPRAN crankshaft impulse sender, part number 701 978, is designed to provide accurate signals for your vehicle's engine control unit. It plays a crucial role in determining the engine's rotational speed and position, which is essential for proper ignition timing and fuel injection. Manufactured by TOPRAN, a trusted name in automotive parts, this sender ensures reliable performance and longevity. Direct replacement for the original part, ensuring a perfect fit and function.