{"product_id":"biglknm-primary-gasket-kit-for-harley-evo-big-twin-1994-1998-full-primary-chaincase-gaskets-seals","title":"BIGLKNM Primary Gasket Kit for Harley EVO Big Twin 1994-1998 — full primary chaincase gaskets \u0026 seals","description":"\u003cp\u003e\u003cstrong\u003eBIGLKNM Primary Gasket Kit is a complete replacement gasket set designed to reseal the primary chaincase and related covers on 1994–1998 Harley-Davidson Big Twin Evolution Softail and Dyna models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your Evo Softail or Dyna has oil seepage around the primary cover, clutch or outer chaincase, this kit supplies the matching gaskets, seals and O-ring to restore leak-free performance. The set is molded from foamet silicone and durable rubber to resist oil and heat while maintaining the factory fit dimensions. Installation is straightforward for a mechanically inclined rider and will help you avoid messy drips and the inconvenience of frequent top-offs.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Harley models and years does this gasket kit fit?\u003c\/h3\u003e\n\u003cp\u003eThe kit is engineered specifically for 1994–1998 Big Twin Evolution engines used in Softail and Dyna frames. It replaces primary cover gaskets and related seals that match the original factory contours for those years. Before ordering, verify your motorcycle’s model year and primary cover style to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits 1994–1998 Big Twin Evolution (EVO) engines\u003c\/li\u003e\n  \u003cli\u003eDesigned for Softail and Dyna models with stock primary layout\u003c\/li\u003e\n  \u003cli\u003eMatches factory gasket dimensions for direct replacement\u003c\/li\u003e\n  \u003cli\u003eCheck existing cover and part numbers for confirmation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat components are included and what materials are used?\u003c\/h3\u003e\n\u003cp\u003eThe package contains the essential gaskets, seals and an O-ring needed to reseal the primary chaincase assembly as shown in the product images. Materials are foamet silicone for conforming flange seals and rubber for dynamic sealing surfaces, chosen to resist oil, heat and compression set for a longer service life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete set of primary gaskets for chaincase and cover mating surfaces\u003c\/li\u003e\n  \u003cli\u003eSeals and one O-ring made from rubber compounds for oil resistance\u003c\/li\u003e\n  \u003cli\u003eFoamet silicone gaskets for flexible, conforming sealing\u003c\/li\u003e\n  \u003cli\u003ePackaged together for one-stop replacement during service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what basic steps should I expect?\u003c\/h3\u003e\n\u003cp\u003eInstallation requires removing the primary cover and cleaning mating surfaces; it’s a moderate DIY task for someone with basic hand tools and mechanical experience. Take care to remove old gasket material, inspect the primary housing for damage, and tighten fasteners to the manufacturer’s torque specifications to prevent leaks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDrain primary oil and remove primary cover and associated components\u003c\/li\u003e\n  \u003cli\u003eClean mating surfaces thoroughly; remove old gasket residue\u003c\/li\u003e\n  \u003cli\u003eFit new foamet silicone and rubber seals, then reassemble per torque specs\u003c\/li\u003e\n  \u003cli\u003eAllow a short road test and recheck fasteners for tightness and leaks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy choose this aftermarket kit over single-piece replacements?\u003c\/h3\u003e\n\u003cp\u003eA complete aftermarket kit like this ensures that all sealing points in the primary assembly get refreshed at once, reducing the chance of future leaks caused by aged components. It’s typically more cost-effective than sourcing individual parts and helps you complete a full reseal in one service interval.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAll necessary parts included to reseal the primary case in one job\u003c\/li\u003e\n  \u003cli\u003eConsistent material selection across sealing points for reliability\u003c\/li\u003e\n  \u003cli\u003eLower overall cost compared with ordering separate gaskets and seals\u003c\/li\u003e\n  \u003cli\u003eConvenience of a consolidated kit for maintenance or rebuilds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This BIGLKNM Primary Gasket Kit is aimed at owners and mechanics working on 1994–1998 Harley Big Twin Evo motorcycles (Softail and Dyna) who want a complete, cost-effective solution to stop primary oil leaks and restore proper sealing. It’s ideal for riders performing a scheduled primary service, mid-life maintenance, or a clutch\/chaincase repair who prefer a full gasket replacement rather than piecemeal fixes. Always verify compatibility with your specific bike and follow safe repair practices and torque specifications during installation.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit fit my 1997 Softail with an Evo engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the BIGLKNM kit is made for 1994–1998 Big Twin Evolution Softail and Dyna models. Verify your primary cover style to confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are torque specs and instructions included?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The kit includes gaskets and seals only; follow the motorcycle manufacturer’s service manual for torque specs and installation steps.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BIGLKNM","offers":[{"title":"Default Title","offer_id":48083055050910,"sku":"B0CN68SJ4X","price":55.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/biglknm-primary-gasket-kit-front-packaging.jpg?v=1785823198","url":"https:\/\/northtrailauto.ca\/products\/biglknm-primary-gasket-kit-for-harley-evo-big-twin-1994-1998-full-primary-chaincase-gaskets-seals","provider":"North Trail Auto","version":"1.0","type":"link"}