{"product_id":"james-gaskets-evo-sportster-rocker-box-assembly-gasket-cover-uppr-rubr-883-12-681-5277","title":"James Gaskets Evo Sportster Rocker Box Upper Rubber Gasket - Harley Sportster","description":"\u003c!-- vt:seo-start --\u003e\n\u003cdiv class=\"vt-brand-bio\" style=\"background:#f6f6f6;border-left:4px solid #c8102e;padding:14px 18px;margin:0 0 20px;border-radius:4px;\"\u003e\n\u003ch2 style=\"margin:0 0 6px;font-size:1.05em;\"\u003eAbout James Gaskets\u003c\/h2\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.6;\"\u003eJames Gaskets has supplied American V-twin gaskets, seals and O-rings for decades and is one of the most widely stocked names for Harley-Davidson engine, primary and transmission rebuilds. When a service manual calls for a specific gasket, James almost always has an exact-fit answer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"line-height:1.65;\"\u003eMaintain the integrity of your Evo Sportster's engine with this James Gaskets rocker box upper rubber gasket. Manufactured in the U.S.A. with advanced materials, it delivers reliable sealing for your 883cc V-twin.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eWhy riders pick this\u003c\/h3\u003e\u003cul style=\"padding-left:20px;margin:0 0 16px;\"\u003e\n\u003cli style=\"margin:3px 0;\"\u003eUpper rubber cover gasket for Evo Sportster 883cc\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eMade in the U.S.A. with advanced materials\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eDirect OEM replacement for reliable sealing\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eEnsures long service life and prevents leaks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor any top-end work on your Evo Sportster, a fresh gasket is non-negotiable. This James Gaskets upper rubber cover gasket is designed to meet or exceed OEM specifications, providing a dependable seal that prevents oil leaks and maintains optimal engine performance. Its U.S.A. manufacturing ensures a commitment to quality and durability, making it a trusted choice for serious riders.\u003c\/p\u003e\u003ch3\u003ePrecision Sealing for Evo Sportster 883cc\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDirect OEM replacement for the Evo Sportster 883cc rocker box upper rubber cover\u003c\/li\u003e\n\u003cli\u003eCrafted in the U.S.A. using state-of-the-art production methods\u003c\/li\u003e\n\u003cli\u003eEngineered for a precise fit, ensuring a long service life and reliable seal\u003c\/li\u003e\n\u003cli\u003eEssential for preventing oil leaks from the rocker box assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUpgrade Your Engine's Reliability\u003c\/h3\u003e\u003cp\u003eDon't let a worn gasket compromise your ride. This James Gaskets upper rocker box gasket is a critical component for any Evo Sportster 883cc owner looking to maintain their engine's health. It's built for durability and designed to withstand the demands of your V-twin, providing confidence in every mile. Always verify fitment for your specific model year.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e James Gaskets\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 17354-86-A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.102 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"vt-faq\"\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eIs this gasket compatible with my Evo Sportster 883cc?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eYes, this specific gasket is designed for Evo Sportster 883cc models with rocker box assembly. Always confirm fitment with your model year.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eCan I use this gasket on Twin Cam or Milwaukee-Eight engines?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eNo, this gasket is specific to Evo Sportster 883cc engines. Twin Cam and Milwaukee-Eight powerplants require different gasket part numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eWhat makes James Gaskets a good choice for my Harley?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eJames Gaskets are known for their U.S.-made quality and precision engineering, ensuring reliable sealing and direct OEM replacement performance for Harley-Davidson V-twins.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vt-confidence\" style=\"border-top:1px solid #e5e5e5;margin:24px 0 0;padding:16px 0 0;font-size:0.92em;line-height:1.6;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOrdering from Vtwinbikers\u003c\/h3\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli\u003eBrand new, sourced through authorized US distribution — never used, never grey-market.\u003c\/li\u003e\n\u003cli\u003eNot sure it fits? Use \u003cstrong\u003eShop by Bike\u003c\/strong\u003e to filter by your year and model, or email us and we will confirm before you order.\u003c\/li\u003e\n\u003cli\u003eHarley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vtwinbikers.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Gaskets\/Seals\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/all\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"James Gaskets\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/james-gaskets\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"James Gaskets Evo Sportster Rocker Box Upper Rubber Gasket - Harley Sportster\",\"item\":\"https:\/\/vtwinbikers.com\/products\/james-gaskets-evo-sportster-rocker-box-assembly-gasket-cover-uppr-rubr-883-12-681-5277\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Is this gasket compatible with my Evo Sportster 883cc?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, this specific gasket is designed for Evo Sportster 883cc models with rocker box assembly. Always confirm fitment with your model year.\"}},{\"@type\":\"Question\",\"name\":\"Can I use this gasket on Twin Cam or Milwaukee-Eight engines?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No, this gasket is specific to Evo Sportster 883cc engines. Twin Cam and Milwaukee-Eight powerplants require different gasket part numbers.\"}},{\"@type\":\"Question\",\"name\":\"What makes James Gaskets a good choice for my Harley?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"James Gaskets are known for their U.S.-made quality and precision engineering, ensuring reliable sealing and direct OEM replacement performance for Harley-Davidson V-twins.\"}}]}\u003c\/script\u003e\n\u003c!-- vt:seo-end --\u003e","brand":"James Gaskets","offers":[{"title":"Default Title","offer_id":53035253923951,"sku":"681-5277","price":63.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_ad8f4109-c2de-4327-ae3d-3b4a511f4cea.png?v=1779561060","url":"https:\/\/vtwinbikers.com\/products\/james-gaskets-evo-sportster-rocker-box-assembly-gasket-cover-uppr-rubr-883-12-681-5277","provider":"Vtwinbikers","version":"1.0","type":"link"}