This Gates Overrunning Alternator Pulley allows for the use of alternators with increased power output, reducing the influence of alternator mass on the belt drive and decreasing wear and tear on all belt drive components. It eliminates belt slip and noise, and absorbs vibrations and fluctuations. The pulley is designed as an Alternator Freewheel Clutch with DriveAlignâ„¢ technology. Key specifications include a width of 38 mm, an outer diameter of 49 mm, an inner diameter of 17 mm, and 6 grooves. It is compatible with various BMW and Ford models, including the BMW 1 Series (F20) 114 i, 116 i, and 118 i, as well as the Ford B-MAX EcoBoost 1.0. Cross-references include Schaeffler INA 535 0268 10 and other references like 7789-10226.