BBK CNC Billet Aluminum 3-Piece Underdrive Pulley Kit for Select Ford & Mercury 1979-1996 (1553)

Fits select 1979-1996 Ford Mustang, F-150, F-250, and Mercury Capri (V8-5.0L). This BBK performance underdrive pulley kit is designed to increase engine output by reducing the parasitic draw of engine accessories. By slowing down the accessories and significantly reducing rotational mass compared to heavy factory steel pulleys, this kit delivers an average gain of 8-15 horsepower.

Each pulley is CNC machined from lightweight billet aluminum for maximum durability and a precision fit. These pulleys are engineered as direct bolt-on replacements for the original equipment, maintaining full cooling and charging characteristics while allowing for the reuse of the existing factory serpentine belt. This kit includes a comprehensive set of pulleys for the crankshaft, water pump, and alternator.

• Increases horsepower by reducing accessory drag and rotational weight
• CNC machined from high-strength billet aluminum
• Direct bolt-on replacement for factory pulleys
• Retains full charging and cooling functionality
• Designed and manufactured in the USA
• Manufacturer Part Number: 1553

Kit Includes: Crankshaft Pulley, Water Pump Pulley, and Alternator Pulley.