King Performance 3.6" Billet Alternator Pulley

Eliminate the belt hop and inconsistency of stamped-steel pulleys with the King Performance 3.6" Billet Alternator Pulley. Engineered for high-performance air-cooled engines, this pulley is 100% manufactured in the USA using premium U.S.-sourced materials.

CNC-machined for perfect concentricity, this pulley provides a more stable belt path at high RPMs and adds a clean, professional look to your engine bay.

Engineering & Material Specs

• USA Made: Proudly manufactured in-house using 100% U.S.-sourced materials.

• Precision Machined: CNC-cut from 6061-T6511 billet aluminum for maximum strength and reduced rotational mass.

• Hard-Anodized Protection: Finished in a hard black anodizing for superior wear resistance against belt friction.

• Optimal Sizing: Features a 3.6" diameter for reliable charging and fan speed.

What’s Included

This is a complete installation kit featuring high-grade hardware:

• 3.6" Billet Alternator Pulley

• 7075-T651 Nut: Hard black anodized for extreme durability.

• 6061-T651 Clamp Washer: Ensures even pressure and secure fitment.

• Precision Shims: Includes .005" thick shims for perfect belt alignment.

Technical Notes & Warranty

• Manufacturer Guarantee: All King Performance billet components and fasteners are guaranteed for two (2) years from the date of purchase.

• Anodizing Note: Like all anodized automotive parts, the finish may naturally fade or change color over time due to engine heat and UV exposure. This is a normal characteristic of the material and does not affect performance.