{"product_id":"king-performance-5-25-billet-pulley-system","title":"King Performance 5.25\" Billet Pulley System | Air-Cooled VW | Complete Top \u0026 Bottom Kit, EFI-Ready","description":"\u003ch2\u003e\u003cb\u003eKing Performance 5.25\" Billet Pulley System — Complete Kit\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eFor high-performance air-cooled builds where clearance, cooling, and engine response matter, the \u003cb\u003eKing Performance 5.25\" Billet Pulley System\u003c\/b\u003e strikes the balance. This 100% USA-made kit uses a \"frenched\" design that recesses the high-strength steel hub into the pulley for maximum stability and a crisp, clean look.\u003c\/p\u003e\n\u003cp\u003eThe \u003cb\u003e5.25\" crank pulley\u003c\/b\u003e paired with the \u003cb\u003e3.6\" alternator pulley\u003c\/b\u003e brings your engine closer to the factory pulley ratio — charging and cooling better than an aggressive 4.3\" power-pulley setup, while giving a slight performance edge over an exact stock ratio for reliable street use.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAir-Cooled VW (Type 1):\u003c\/b\u003e Beetle, All Years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e100% Made in the USA:\u003c\/b\u003e Precision-manufactured in-house from premium U.S.-sourced materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHybrid Construction:\u003c\/b\u003e Pulleys CNC-machined from 6061-T6511 billet aluminum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFrenched Steel Hub:\u003c\/b\u003e Heat-treated 4140 chromoly stock-style hub for durability and perfect concentricity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHard-Anodized:\u003c\/b\u003e .0015\" thick hard black anodizing for extreme wear resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEFI Ready:\u003c\/b\u003e Pre-tapped for the Dub Shop Trigger Wheel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eWhat's Included\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003e5.25\" Billet Crank Pulley \u0026amp; 3.600\" Billet Alternator Pulley\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e7075-T651 Hard Black Anodized Nut\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003e6061-T651 Clamp Washer\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eCrank Pulley Bolt\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Shims:\u003c\/b\u003e .005\" thick, for belt alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBonus:\u003c\/b\u003e High-quality belt included at no charge (as a size recommendation; actual needs may vary).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCrank Pulley:\u003c\/b\u003e 5.25\" diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAlternator Pulley:\u003c\/b\u003e 3.600\" diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMaterial:\u003c\/b\u003e 6061-T6511 billet aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHub:\u003c\/b\u003e 4140 chromoly steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFinish:\u003c\/b\u003e .0015\" hard black anodized\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWarranty:\u003c\/b\u003e 2 years from date of purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhat's the warranty?\u003c\/b\u003e Two years from date of purchase on all King Performance billet products and fasteners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWill the anodizing fade?\u003c\/b\u003e Some color change over time from engine heat and UV is normal and doesn't affect function.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIs a belt included?\u003c\/b\u003e Yes, a sized belt ships with the kit at no charge as a starting recommendation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIs this EFI-ready?\u003c\/b\u003e Yes, pre-tapped for the Dub Shop Trigger Wheel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/engine\"\u003eEngine\u003c\/a\u003e, \u003ca href=\"\/collections\/engine-parts\"\u003eEngine Parts\u003c\/a\u003e, \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAll Air-Cooled VW\u003c\/a\u003e\u003c\/p\u003e","brand":"King Performance","offers":[{"title":"Default Title","offer_id":44471080091763,"sku":null,"price":315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/spokedblack1_5906d650-6c97-4f6d-b109-93241d78c879.webp?v=1774223199","url":"https:\/\/www.washburnsmetal.com\/products\/king-performance-5-25-billet-pulley-system","provider":"Washburn's Metal","version":"1.0","type":"link"}