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BPS Underdrive Alternator Pulley (2011-2017 Mustang GT).

BPS Underdrive Alternator Pulley (2011-2017 Mustang GT)

by Billet Pro Shop
SKU P014
$87.00 - $87.00
$87.00
$87.00 - $87.00
$87.00

Spinning your alternator passed the factory limit often leads to failure. Extend your alternator’s 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.

63mm OD (measured at top of rib) 

*Includes  replacement nut

*Requires larger belt, part number: JK6847-B

Customer Reviews

Based on 3 reviews
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R
Richard V.
Exactly what I needed for

Exactly what I needed for coyote gen 1 to gen 2 swap. Underdrive too, bonus.

C
CARL I.
Excellent part!!

Excellent part!!

P
Preston
haven't ran the car yet

haven't ran the car yet but looks real nice and fits great! perfect for our application for running a reverse mount alternator setup and eliminating the stock clutch pulley.

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