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BPS Underdrive Alternator Pulley (2011-2017 Mustang GT)

SKU P014
Original price $0
Original price $91.00 - Original price $91.00
Original price
Current price $91.00
$91.00 - $91.00
Current price $91.00
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Pickup available at Billet Pro Shop

Usually ready in 24 hours

Racing Use Only, Not Legal for Road Use

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
100%
(3)
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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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