SKU: 21833071979

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

$126.39 $140.43
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21833071979

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4.7 ★★★★★
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Grammar Guru
Boise, US
★★★★★ 5
Very nice kit: Beware it is NOT heavy duty plumbing pipe though!
Size: side table leg
I want to give this kit a high rating, but I need to address the "truth in advertising" bit since there may be an important disconnect between what you think you are getting and what actually comes in the box. Black plumbing used for shelving or table legs is part of an important niche in interior design. I like the industrial loft look myself and have a variety of glass, steel, and masonry elements in my home. This kit fits that look and provides plenty of "strength" for most domestic uses, like shelves or coffee tables. But they are NOT "industrial pipe" or "maximum durability pipe." Note the phrase "cast iron finish feet," which together with the other claims might lead you to think these are cast plumbing fittings. They are NOT! The feet and flanges feel like electrical conduit fittings, and the pipe sections are likely aluminum. They might be electrical or they might be multi-use, lightweight pipe. While all this might lead you to think that you're getting a truly retro, heavy-duty pipe kit made of black plumbing pipe, you are not. But, does it matter? Depends. I find the lighter pipe's smooth finish a nice "tone-down" from the rough plumbing look. All together, this kit provides plenty of strength for most furniture and the rustic pipe look, but with a nicer, lighter finish. To me that is a plus--this is a very nice kit and costs less that if you'd pieced it together from real plumbing parts (I priced it out to compare), and looks retro but cleaner. I knew what to expect because while I got this kit free on Vine, I had purchased a nearly identical kit from another seller last year. So, I'm giving it 5 stars for what it actually is and for the price, JUST BE AWARE THE NARRATIVE IS MISLEADING. Which is unfortunate because just like some people might want the heavier pipe, I'm betting more would be attracted to the look with a cleaner, lighter feel.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 31, 2025
W
Verified Purchase
WCR
Lowell, US
★★★★★ 5
Just an ABSOLUTELY PERFECT Bar Cart!
Style: Grey Oak, Size: 14.17"D x 37.01"W x 35.24"H
Completely blown away with this cart! It FAR exceeded my expectations! A little more expensive than similar items, but the reviews sold me on it! Approximately 45 minutes to assemble from unboxing. Really good instructions. Tools included. I put together lots of these Lego Projects, so I can get through pretty quickly. This is a HEAVY, STURDY, SOLID, WELL MADE piece! All of the metal and wood surfaces are smooth and clean! Its much sturdier than it looks in the ad pics. It's also a little larger than I expected, even though I did measure it all out before ordering. I had ZERO problems building this thing. It's beautiful. Lines and surfaces are my base motif, and this fits the bill perfectly! Im not a big fan of the handle but I did go ahead and install. This cart fits seemlessly in with other furniture materials and fabrics. Can be tucked neatly into a tight space, or in my case ... is anchoring its own spot under some artwork somewhat solo along a large wall. You absolutely get your money's worth with this one. An absolute score with Two Thumbs Up!
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Reviewed in the United States on December 31, 2025
W
Verified Purchase
Wesley
Lexington, US
★★★★★ 5
Beautiful!!!
Absolutely INCREDIBLE!!!! Easy to assemble and beautiful once set up!!! Plenty of room!!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
T
Verified Purchase
Two and Dog
Grantham, US
★★★★★ 5
Good quality wine cart.
Very sturdy bar cart and well made. Product came well packaged, with good instructions and even some extra screws. It is helpful to have 2 people putting it together. The only downside is the wine rack will not hold fatter bottles of wine but I added a small wine rack to the top.
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Reviewed in the United States on May 6, 2026
A
Verified Purchase
Amazon Customer Connie
Birmingham, US
★★★★★ 4
Very nice cart.
The cart is very functional and relatively easy to put together. I was also provided a great tip on the assembly that made it much easier.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026

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