{"product_id":"namura-na-50011-2k-top-end-repair-kit-0-50mm-oversize-to-97-07mm","title":"Namura NA-50011-2K Top End Repair Kit (0.50mm Oversize to 97.07mm)","description":"\u003cp data-path-to-node=\"5\"\u003eKeep your machine running in peak condition with the \u003cb data-path-to-node=\"5\" data-index-in-node=\"53\"\u003eNamura Technologies Top-End Repair Kit\u003c\/b\u003e. This convenient, time-saving package includes everything you need for a premium top-end rebuild: \u003cb data-path-to-node=\"5\" data-index-in-node=\"190\"\u003ePiston, Rings, Wrist Pin, Circlips, and a Top-End Gasket Kit\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eEngineered to match or exceed OEM specifications, Namura pistons feature advanced manufacturing processes that provide superior performance, high thermal efficiency, and maximum reliability under demanding conditions.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eKey Features:\u003c\/b\u003e\u003c\/p\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\"\u003eHypereutectic Casting Process:\u003c\/b\u003e High silicon content reduces expansion rates and enhances wear resistance, allowing the piston to withstand extreme cylinder temperatures.\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\"\u003eMOS2 (Teflon\/Molybdenum) Coated Skirts:\u003c\/b\u003e A specialized roll-on application process creates a bond 10 times stronger than traditional spray-on coatings. This dramatically increases heat transfer, reduces friction, and helps eliminate cold seizures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eMachined Smooth Heads:\u003c\/b\u003e Reflects combustion heat to reduce carbon buildup and protect the top of the piston, maximizing engine efficiency and durability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eAnodized Domes:\u003c\/b\u003e Increase overall heat resistance and strength, creating a dome that is up to 75% stronger than standard, non-anodized alternatives.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"9\"\u003e\n\u003ch3 data-path-to-node=\"10\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003eFitment \/ Vehicle Applications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"11\"\u003eThis specific kit features a \u003cb data-path-to-node=\"11\" data-index-in-node=\"29\"\u003e97.07mm Bore (0.50mm Oversize)\u003c\/b\u003e and fits the following models:\u003c\/p\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,0,0\"\u003e\u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"0\"\u003e2010 Polaris Sportsman 550\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,1,0\"\u003e\u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"0\"\u003e2011 Polaris Sportsman 550\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\"\u003e\u003cb data-path-to-node=\"12,2,0\" data-index-in-node=\"0\"\u003e2012 Polaris Sportsman 550\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,3,0\"\u003e\u003cb data-path-to-node=\"12,3,0\" data-index-in-node=\"0\"\u003e2013 Polaris Sportsman 550\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote data-path-to-node=\"13\"\u003e\n\u003cp data-path-to-node=\"13,0\"\u003e\u003cb data-path-to-node=\"13,0\" data-index-in-node=\"0\"\u003eTech Note:\u003c\/b\u003e Always check your cylinder clearances and ensure proper cross-hatching before final assembly. Follow a proper multi-cycle heat break-in procedure with conventional oil before transitioning to synthetic oil.\u003c\/p\u003e\n\u003cp open=\"\"\u003e\u003cspan\u003e*Free Shipping!\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cspan\u003e*📦 We \u003c\/span\u003e\u003cspan\u003eonly ship to the lower 48 states. We do not ship to Alaska, Hawaii, Guam, or Puerto Rico\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/blockquote\u003e\n\u003cp data-path-to-node=\"13,0\"\u003e \u003c\/p\u003e","brand":"UpdogIndustries.com","offers":[{"title":"Default Title","offer_id":43650175500362,"sku":"NA-50011-2K","price":143.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0226\/1499\/9114\/files\/s-l1600-2026-06-01T133713.503.webp?v=1780339060","url":"https:\/\/updogindustries.com\/products\/namura-na-50011-2k-top-end-repair-kit-0-50mm-oversize-to-97-07mm","provider":"UpdogIndustries.com","version":"1.0","type":"link"}