{"product_id":"kpmi-cylinder-stud-kits-studs-evo-1984-1999-191-57086","title":"KPMI Cylinder Stud Kits - Studs EVO 1984-1999 — Harley-Davidson Electra Glide Classic, Softail Custom, Softail Heritage Classic (1984-1999)","description":"\u003cp\u003eKPMI cylinder stud kits for EVO-era V-twin engines, engineered from premium grade 8740 steel heat-treated to 180,000 psi yield strength. Threads are rolled after heat treating to retain maximum compressive stress and fatigue resistance, with a black oxide finish for corrosion protection and appearance.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8740 steel, 180,000 psi yield strength\u003c\/li\u003e\n  \u003cli\u003eThreads rolled after heat treating for maximum fatigue life\u003c\/li\u003e\n  \u003cli\u003eCenterless ground for precise concentricity\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish resists corrosion\u003c\/li\u003e\n  \u003cli\u003eInterference-fit case threads maintain contact at high temperature\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 20-2098\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Grade 8740 steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eYield Strength:\u003c\/strong\u003e 180,000 psi\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 4.9 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 7.75 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 1.3 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.54 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits EVO-based V-twin engines from 1984 through 1999 Harley-Davidson and compatible V-twin platforms.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat makes these studs stronger than factory studs?\u003c\/h3\u003e\n\u003cp\u003eGrade 8740 material heat-treated to 180,000 psi yield, with threads rolled after hardening to maximize fatigue life and stress retention.\u003c\/p\u003e\n\u003ch3\u003eDo these require special installation tools?\u003c\/h3\u003e\n\u003cp\u003eStandard cylinder stud tools work. Torque specs should follow your engine rebuild manual or KPMI documentation.\u003c\/p\u003e\n\u003ch3\u003eWill these fit my 2000+ Harley with Twin Cam or M8 engine?\u003c\/h3\u003e\n\u003cp\u003eNo — these studs are designed for 1984-1999 EVO engines. Twin Cam and M8 engines use different stud designs and lengths.\u003c\/p\u003e\n\u003ch3\u003eWhat's the black coating?\u003c\/h3\u003e\n\u003cp\u003eBlack oxide finish provides corrosion resistance and a professional appearance without adding thickness that would affect fitment.\u003c\/p\u003e","brand":"KPMI","offers":[{"title":"Default Title","offer_id":53035010981999,"sku":"191-57086","price":187.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_f57688ff-b8d7-4ad6-aa0e-1037300198c3.png?v=1779559115","url":"https:\/\/vtwinbikers.com\/products\/kpmi-cylinder-stud-kits-studs-evo-1984-1999-191-57086","provider":"Vtwinbikers","version":"1.0","type":"link"}