This brand-new alternator regulator with part numbers 1623869 and 1810399 is engineered for DAF XF95 trucks. It acts as a key engine electrical part to stabilize alternator voltage output steadily. It shields vehicle electrical systems from voltage surge and circuit damage. Made of high-quality electronic parts with precise production, it owns great heat and vibration resistance. Fully conforming to OEM standards, it is a perfect replacement for worn or faulty original regulators.