BPS Underdrive Alternator Pulley (2011-2017 Mustang GT)
BPS Underdrive Alternator Pulley (2011-2017 Mustang GT) is backordered and will ship as soon as it is back in stock.
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BPS Underdrive Alternator Pulley (2011-2017 Mustang GT)
Description
Description
Spinning your alternator passed the factory limit often leads to failure. Extend your alternators life by reducing its maximum RPM while maintaining sufficient charge at idle. Our 15% underdrive alternator pulley will help keep the rpms within a more reasonable range when spinning past the factory limiter. Our pulleys are CNC machined from billet 6061 aluminum and are hard black anodized for a durable finish.
*Includes replacement nut
*Requires larger belt, part number: JK6847-B
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