{"product_id":"namura-std-bore-top-end-repair-kit-na-50093k","title":"Namura Standard Bore Top End Repair Kit (90.42mm) - NA-50093K | Polaris Scrambler \u0026 Sportsman 1000","description":"\u003cp data-path-to-node=\"5\" id=\"p-rc_7810c37c999b14e4-26\"\u003eRestore your machine’s factory performance without breaking the bank. \u003cspan class=\"citation-21\"\u003eThe \u003c\/span\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"74\"\u003e\u003cspan class=\"citation-21\"\u003eNamura Standard Bore Top End Repair Kit (NA-50093K)\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-21 citation-end-21\"\u003e is a complete, convenient, and time-saving solution designed to get your ride back on the trail with maximum power and longevity.\u003csup class=\"superscript embedded\" data-turn-source-index=\"1\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\" id=\"p-rc_7810c37c999b14e4-27\"\u003e\u003cspan class=\"citation-20 citation-end-20\"\u003eRather than spending unnecessary time and money replacing the entire cylinder, this kit provides everything required for a premium top-end rebuild.\u003csup class=\"superscript embedded\" data-turn-source-index=\"2\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-19 citation-end-19\"\u003eEach component is engineered to meet or exceed strict OEM performance standards for a seamless, drop-in installation with absolutely no modification or trimming required.\u003csup class=\"superscript embedded\" data-turn-source-index=\"3\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"7\"\u003eWhat's Included in the Kit:\u003c\/h3\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003ePremium Pistons:\u003c\/b\u003e Standard Bore (90.42mm) engineered for exact fitment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eOEM-Quality Piston Rings:\u003c\/b\u003e Separately packaged for protection during shipping.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\" id=\"p-rc_7810c37c999b14e4-28\"\u003e\u003cspan class=\"citation-18\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-18\"\u003eHardware:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-18 citation-end-18\"\u003e Wrist pins and secure circlips.\u003csup class=\"superscript embedded\" data-turn-source-index=\"4\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\" id=\"p-rc_7810c37c999b14e4-29\"\u003e\u003cspan class=\"citation-17\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-17\"\u003eTop End Gasket Kit:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-17 citation-end-17\"\u003e Made from premium materials resistant to high temperatures, oil, fuel, and coolants.\u003csup class=\"superscript embedded\" data-turn-source-index=\"5\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"9\"\u003ePerformance Engineering Features:\u003c\/h3\u003e\n\u003cul data-path-to-node=\"10\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,0,0\" id=\"p-rc_7810c37c999b14e4-30\"\u003e\u003cspan class=\"citation-16\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-16\"\u003eMOS2 (Teflon\/Molybdenum) Coated Skirts:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-16 citation-end-16\"\u003e Applied using a unique rolled-on process for a bond 10x stronger than standard spray-on coatings.\u003csup class=\"superscript embedded\" data-turn-source-index=\"6\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-15 citation-end-15\"\u003eDramatically reduces friction, improves heat transfer, and prevents cold seizures.\u003csup class=\"superscript embedded\" data-turn-source-index=\"7\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,1,0\" id=\"p-rc_7810c37c999b14e4-31\"\u003e\u003cb data-path-to-node=\"10,1,0\" data-index-in-node=\"0\"\u003eHypereutectic Casting:\u003c\/b\u003e\u003cspan class=\"citation-14 citation-end-14\"\u003e High-silicon aluminum casting ensures minimal heat expansion, increased wear resistance, and the ability to withstand extreme cylinder temperatures and pressures.\u003csup class=\"superscript embedded\" data-turn-source-index=\"8\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,2,0\" id=\"p-rc_7810c37c999b14e4-32\"\u003e\u003cb data-path-to-node=\"10,2,0\" data-index-in-node=\"0\"\u003eMachined Smooth Heads:\u003c\/b\u003e\u003cspan class=\"citation-13 citation-end-13\"\u003e Smooth-finished crowns reflect combustion heat and drastically minimize carbon buildup, protecting the piston while optimizing fuel economy and power.\u003csup class=\"superscript embedded\" data-turn-source-index=\"9\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,3,0\" id=\"p-rc_7810c37c999b14e4-33\"\u003e\u003cspan class=\"citation-12\"\u003e\u003c\/span\u003e\u003cb data-path-to-node=\"10,3,0\" data-index-in-node=\"0\"\u003e\u003cspan class=\"citation-12\"\u003eAnodized Domes:\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-12 citation-end-12\"\u003e Increase heat resistance and overall structural durability, making the dome up to 75% stronger than non-anodized alternatives.\u003csup class=\"superscript embedded\" data-turn-source-index=\"10\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"11\"\u003e\n\u003ch2 data-path-to-node=\"12\"\u003eExact Vehicle Fitment Check\u003c\/h2\u003e\n\u003cp data-path-to-node=\"13\"\u003eThis kit features a \u003cb data-path-to-node=\"13\" data-index-in-node=\"20\"\u003e90.42mm Standard Bore\u003c\/b\u003e configuration specifically designed for the Twin-Cylinder Polaris 1000 cc\u003cb data-path-to-node=\"13\" data-index-in-node=\"86\"\u003e ProStar engine\u003c\/b\u003e.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e*Free Shipping!*📦 We only ship to the lower 48 states. We do not ship to Alaska, Hawaii, Guam, or Puerto Rico\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"14\"\u003eIt is a direct fit for the following models:\u003c\/p\u003e\n\u003ctable data-path-to-node=\"15\" style=\"width: 100%; height: 78.3752px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 11.0882%; height: 19.5938px;\"\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 42.3243%; height: 19.5938px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 21.063%; height: 19.5938px;\"\u003e\u003cstrong\u003eYears\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20.5246%; height: 19.5938px;\"\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 11.0882%; height: 19.5938px;\"\u003e\u003cspan data-path-to-node=\"15,1,0,0\"\u003e\u003cb data-path-to-node=\"15,1,0,0\" data-index-in-node=\"0\"\u003ePolaris\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 42.3243%; height: 19.5938px;\"\u003e\u003cspan data-path-to-node=\"15,1,1,0\"\u003eScrambler 1000 XP \/ XP EPS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 21.063%; height: 19.5938px;\"\u003e\u003cspan data-path-to-node=\"15,1,2,0\"\u003e2014 – 2019+\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20.5246%; height: 19.5938px;\"\u003e\u003cspan data-path-to-node=\"15,1,3,0\"\u003eTwin Cylinder\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 11.0882%; height: 19.5938px;\"\u003e\u003cspan data-path-to-node=\"15,2,0,0\"\u003e\u003cb data-path-to-node=\"15,2,0,0\" data-index-in-node=\"0\"\u003ePolaris\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 42.3243%; height: 19.5938px;\"\u003e\u003cspan data-path-to-node=\"15,2,1,0\"\u003eSportsman XP 1000\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 21.063%; height: 19.5938px;\"\u003e\u003cspan data-path-to-node=\"15,2,2,0\"\u003e2015 – 2019+\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 20.5246%; height: 19.5938px;\"\u003e\u003cspan data-path-to-node=\"15,2,3,0\"\u003eTwin Cylinder\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 11.0882%; height: 19.5938px;\"\u003e\u003cspan data-path-to-node=\"15,3,0,0\"\u003e\u003cb data-path-to-node=\"15,3,0,0\" data-index-in-node=\"0\"\u003ePolaris\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 42.3243%; height: 19.5938px;\"\u003e\u003cspan data-path-to-node=\"15,3,1,0\"\u003eSportsman XP 1000 Touring\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"UpdogIndustries.com","offers":[{"title":"Default Title","offer_id":43710143627338,"sku":null,"price":246.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0226\/1499\/9114\/files\/s-l1600-2026-06-16T092923.388.webp?v=1781620182","url":"https:\/\/updogindustries.com\/products\/namura-std-bore-top-end-repair-kit-na-50093k","provider":"UpdogIndustries.com","version":"1.0","type":"link"}