Crankshaft Pulley 11237564969 For BMW E90 E60 E66 E70 E84 E83

A crankshaft pulley, also known as a harmonic balancer or crank pulley, is a vital component in an engine's crankshaft system. It is typically a large wheel or disk that is mounted on the front end of the crankshaft. The crankshaft pulley is responsible for transmitting power from the engine to various accessories, such as the alternator, power steering pump, or air conditioning compressor. It is made of durable materials such as steel or aluminum to withstand the forces and stresses encountered during engine operation.

The primary function of a crankshaft pulley is to drive the engine accessories and synchronize their operation with the crankshaft's rotation. As the engine rotates, the crankshaft pulley rotates as well, transferring power through the serpentine or V-belt to the connected accessories. The crankshaft pulley's design often includes grooves or ribs that match the belt's profile, ensuring a secure and efficient power transfer. Additionally, the crankshaft pulley may also serve as a harmonic balancer, helping to reduce vibrations and maintain smooth engine operation.