Genuine BMW N55 Crank bolt. (S55 bolts are full threaded, while N55 bolts are only half threaded; otherwise, there is no difference between them.). 4 pin type One piece S55 crank hub (forged steel).
Engine Actuator Motor Valvetronic System 11377603979 Fits For BMW N20 N55 S55 UK
Fits For BMW N20 N55 S55 Engine Actuator Motor Valvetronic System 11377603979 UK
Engine Valvetronic Actuator Motor For BMW N20 N55 S55 Auto Parts Replacement
Crank Seal Guard Serpentine Belt Protection For BMW N54 N55 N52 S55 335i 07-15
Engine Actuator Motor Valvetronic System Fit For BMW N20 N55 S55 UK 11377603979
Engine Actuator Motor Valvetronic System 11377603979 Fit For BMW N20 N55 S55 UK
