King Performance 5.25" Billet Pulley System — Complete Top & Bottom Kit | Air-Cooled VW

King Performance 5.25" Billet Pulley System — Complete Top & Bottom Kit | Air-Cooled VWKing Performance 5. 25" Billet Pulley System For high performance air cooled builds where clearance, cooling efficiency, and engine response are critical, the King Performance 5. 25" Billet Pulley System offers the ultimate balance. This 100% USA made kit is engineered for precision, featuring a unique "frenched" design where the high strength steel hub is recessed into the pulley for maximum stability and a crisp, clean aesthetic. The "Sweet Spot"

King Performance 5.25" Billet Pulley System

For high-performance air-cooled builds where clearance, cooling efficiency, and engine response are critical, the King Performance 5.25" Billet Pulley System offers the ultimate balance. This 100% USA-made kit is engineered for precision, featuring a unique "frenched" design where the high-strength steel hub is recessed into the pulley for maximum stability and a crisp, clean aesthetic.

The "Sweet Spot" Ratio

This kit is specifically designed for the driver who wants the performance of a smaller pulley without the cooling trade-offs. The 5.25” crank pulley paired with the 3.6” alternator pulley brings your engine closer to the original factory pulley ratio.

• Better than a 4.3" Power Pulley: While a 4.3" setup is built for maximum horsepower gains, it often sacrifices cooling and charging at lower RPMs. This 5.25" setup charges and cools significantly better.

• The Perfect Compromise: At 5.25", it is slightly larger than a 3.2" (the "exact" stock ratio), giving you a slight performance edge while maintaining the high-reliability cooling and charging your engine needs for the street.

Engineering & Material Specs

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

• Superior Hybrid Construction: Pulleys are CNC-machined from 6061-T6511 billet aluminum.

• Frenched Steel Hub: Mounted on a heat-treated 4140 chromoly steel stock-style hub for lifetime durability and perfect concentricity.

• Hard-Anodized Protection: Finished in a heavy-duty .0015" thick hard black anodizing for extreme wear resistance.

• EFI Ready: Pre-tapped mounting holes designed for immediate use with the Dub Shop Trigger Wheel.

What’s Included

This is a comprehensive installation kit featuring all necessary high-grade hardware:

• 5.25" Billet Crank Pulley & 3.600" Billet Alternator Pulley

• 7075-T651 Hard Black Anodized Nut: High-strength and wear-resistant.

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

• Crank Pulley Bolt: High-tensile hardware for a secure installation.

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

• Bonus Item: High-quality belt included at no charge (provided as a size recommendation; actual needs may vary).

Warranty & Notes

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

• Anodizing Note: Finish may naturally fade or change color over time due to engine heat and UV exposure. This is a normal characteristic of the material.