BPS Underdrive Alternator Pulley (2011-2017 Mustang GT)

Spinning your alternator passed the factory limit often leads to failure. Extend your alternatoräó»s life by reducing its maximum RPM while maintaining sufficient charge at idle. OurŒæ15%Œæunderdrive alternator pulley will help keep the rpms within a more reasonable range when spinning past the factory limiter.Œæ Our pulleys are CNC machined from billet 6061 aluminum and are hard black anodized for a durable finish.

ξ

*Includesξ replacement nut

*Requires larger belt, part number: JK6847-B