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Everything Must Go Bbk Performance Parts 1553 1979-1993 Mustang 5.0 3 Pc Performance Under Drive Pulley Kit (billet Aluminum) See Details [pGPXFNsL]

$39.99 $127.99 -69%

Install a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing

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Everything Must Go Bbk Performance Parts 1553 1979-1993 Mustang 5.0 3 Pc Performance Under Drive Pulley Kit (billet Aluminum) See Details [pGPXFNsL]

Install a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.
Resources
Installation Instructions

Specifications:

Add-On Part 1557,1500,1515,1521,1706
Description_DEF Engine Under Drive Pulley Kit
Description_DES 1979-1993 MUSTANG 5.0 3 PC UNDER DRIVE PULLEY KIT BILLET ALUMINUM
Description_EXT 1979-1993 MUSTANG 5.0 3 PC PERFORMANCE UNDER DRIVE PULLEY KIT (BILLET ALUMINUM)
Description_FAB Includes Crank, Water Pump And Alternator Pulley - CNC Machined Billet Aluminum Finish - Re-Uses Factory Serpentine Belt
Description_INV BBK Under Drive Pulleys
Description_MKT Install a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant performance improvements can be seen by reducing the weight of the pulley versus the original pulley which is why we recommend the BBK CNC Machined billet aluminum pulley kits for maximum horsepower gains. ALL BBK pulley kits are designed as direct bolt on replacements for the current factory pulleys and retain full cooling and charging characteristics. BBK under drive pulley kits are vehicle specific and each kit comes with complete installation instructions and allow the re-use of existing serpentine belts.
Description_SHO Under Drive Pulleys
height 7.0
length 5.0
LTL N
Prop 65 (C, R or CR) CR
Prop 65 - Short Label BBK Performance www.P65Warnings.ca.website_2100x759.jpg
Prop 65 Yes/No Yes
Title BBK MUSTANG 5.0 3 PC UNDER DRIVE PULLEY KIT (ALUMINUM)
weight 4.0
width 7.0

What Our Customers Say

January 24, 2026

Absolutely no complaints!

A great item. And I do really recommend it.

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January 24, 2026

Absolutely no complaints!

Great performance and a really, really excellent design.

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January 24, 2026

Absolutely no complaints!

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