{"product_id":"kpmi-cylinder-stud-kits-studs-pkg-of-8-191-58018","title":"KPMI Cylinder Stud Kits - Studs (pkg. OF 8) — Harley-Davidson Road King, Tri Glide Ultra Classic, Electra Glide Ultra Limited (2017-2020)","description":"\u003cp\u003eKPMI cylinder stud kits provide eight high-performance studs for V-twin motorcycle engines, manufactured from premium grade 8740 material heat-treated to 180,000 psi yield strength. Threads are rolled post-heat-treat to maximize fatigue resistance and retain compressive stress at sustained high temperatures.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8740 material heat-treated to 180,000 psi yield strength\u003c\/li\u003e\n  \u003cli\u003eThreads rolled after heat treating for maximum fatigue life\u003c\/li\u003e\n  \u003cli\u003eSlight interference fit design maintains thread contact at high temperature\u003c\/li\u003e\n  \u003cli\u003eCenterless ground for concentricity and precision\u003c\/li\u003e\n  \u003cli\u003ePremium black oxide finish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e KPMI\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 20-21040\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 8 studs per package\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 5 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 1 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 1.4 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 8 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits V-twin motorcycle engines, including Harley-Davidson and Indian Motorcycle models.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat material are these studs made from?\u003c\/h3\u003e\n\u003cp\u003ePremium grade 8740 steel heat-treated to 180,000 psi yield strength, with rolled threads for maximum fatigue resistance.\u003c\/p\u003e\n\u003ch3\u003eWhy are the threads rolled after heat treating?\u003c\/h3\u003e\n\u003cp\u003eRolling threads post-heat-treat retains maximum compressive stresses, ensuring the longest possible fatigue life under sustained high engine loads.\u003c\/p\u003e\n\u003ch3\u003eHow many studs are in the package?\u003c\/h3\u003e\n\u003cp\u003eEight studs per package, which is a common cylinder stud kit quantity for V-twin engines.\u003c\/p\u003e\n\u003ch3\u003eWhat finish do these studs have?\u003c\/h3\u003e\n\u003cp\u003ePremium black oxide treatment for excellent appearance and corrosion resistance.\u003c\/p\u003e","brand":"KPMI","offers":[{"title":"Default Title","offer_id":53035873271919,"sku":"191-58018","price":584000.0,"currency_code":"COP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/3149-5dfb8c9b851f3.jpg?v=1777529926","url":"https:\/\/vtwinbikers.com\/en-co\/products\/kpmi-cylinder-stud-kits-studs-pkg-of-8-191-58018","provider":"Vtwinbikers","version":"1.0","type":"link"}