BMW Power Pulley - aFe 79-10003

Product Information

An Engine Crankshaft Pulley (also known as a harmonic balancer or crank pulley) is a wheel attached to the engine’s crankshaft. It serves two primary purposes:

• Power Transmission: It drives various engine accessories (such as the alternator, water pump, power steering pump, and air conditioning compressor) through the serpentine or V-belt.

• Vibration Dampening: The crankshaft pulley often includes a rubber damper to absorb vibrations created by the engine’s combustion cycles, protecting the crankshaft from excessive vibration and potential damage over time

• Engine Vibrations: A failing or damaged pulley can lead to excessive engine vibrations, particularly at higher RPMs, because it no longer dampens the crankshaft’s vibrations effectively
• Visible Belt Misalignment: If the pulley is damaged or wobbly, it can misalign the serpentine belt, which may be visible on inspection and could result in premature belt wear
• Power Loss to Accessories: A failing pulley can lead to reduced or intermittent power to accessories like the alternator, power steering, or air conditioning due to belt slippage or pulley misalignment

About aFe

Advanced FLOW engineering, or aFe, is a manufacturer of automotive cold air intake systems, performance air filters, fluid filters, intake manifolds turbochargers, programmers, throttle body spacers and exhaust systems. aFe was founded in 1999 and is headquartered in Corona, California, USA, in two facilities totaling 160,000 sq ft (15,000 m2) including their 77,000 sq ft (7,200 m2) headquarters and manufacturing facilities. An 87,000 sq ft (8,100 m2) warehouse and R&D facility was added in 2012.