11377603979 Engine Valvetronic Actuator Motor For N20 N55 S55 Brand- Cylinder Head Valvetronic Timing Actuator Motor Engine Valvetronic Actuator Motor replaces 11377603979.Designed for use with engine models N20, N55, and S55.Functions as a timing actuator motor mounted on the cylinder head to control variable valve lift.Ensures precise adjustment of the valvetronic system for proper engine function.Fits various vehicle models from 2010 to 2019 including variants of 1 Series, 2 Series, 3 Series, 4 Series, 5 Series, 6 Series, 7 Series, X1, X3, X4, X5, X6, Z4, M3, M4, M235i, and hybrid versions.Includes one Engine Valvetronic Actuator Motor.