FREE 1 to 3-Day Delivery on Orders $119+ Details
Talk to a Mustang Sales Tech
1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Find Underdrive Pulleys for your Mustang
2024-2025
2015-2023
2010-2014
2005-2009
1999-2004
1994-1998
1979-1993
Underdrive Alternator Pulley; 25% Underdrive (10-14 Mustang GT500)Find parts that fit my vehicle
Item 462070$0.00
Our Price
$84.99
Ship to: 19606
Please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
Will this fit your Vehicle?
Saved - View your saved items
We're sorry. We couldn't save this product at this time.
or use
Product Information
Description, Q&A
Description
GT500 alternators are prone to failure; high revs are the main culprit. These units were designed to spin at a maximum of 17 to 18000 RPM. Since the vast majority of us have modded these cars and raised the rev limiter beyond the factory setting we often see failures. Our BPS 10% underdrive pulley will keep the alternator revs within a more reasonable range while allowing sufficient charging in the lower RPM band. Save yourself an alternator and minimize the chances of failure with this 15 minute pulley swap!This pulley is an inexpensive insurance for the rpm issues and is highly recommended on all 2007-2014 MODDED GT500’s that spin the engine above the stock rev limiter setting (6250rpm) 25% underdrive pulley for those who spin their built engines above 7000 RPM. We have tested on our own shop car that with the 10% underdrive at 6800 RPMs the alternator does not charge anymore. Switching out to the 25% slows it enough to keep charging even at those higher RPMs. Purchase of longer belt necessary2007-2010: K0608752011-2014: K060845
Fitment:
DetailsCA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
5.0
Reviews of similar Engine Products (1)
Reviews of similar Engine products have an average rating of 5.0 out of 5
Questions & Answers
No questions about this product yet.
Ask the First Question
Will It Fit My Mustang
- GT500 - 10, 11, 12, 13, 14
