{"product_id":"namura-na-50015-2k-top-end-kit-39-48-mm-0-50-mm-11-1-for-polaris-outlaw-50","title":"Namura NA-50015-2K Top End Kit 39.48 mm +0.50 mm 11:1 for Polaris Outlaw 50","description":"\u003cp\u003eThe Namura NA-50015-2K Top End Kit is a high-quality engine rebuild solution for select Polaris Outlaw 50 models from 2008 through 2017. This 39.48 mm oversized piston kit features an 11:1 compression ratio and is designed to restore top-end performance, compression, and reliability when used with the properly prepared cylinder. The kit includes the piston, piston rings, wrist pin, retaining clips, top-end bearing, and gasket kit for a complete installation.\u003c\/p\u003e\u003cp\u003eNamura manufactures this piston using a hypereutectic casting process that increases silicon content for reduced expansion, improved wear resistance, and dependable performance at higher cylinder temperatures. The piston skirt uses a MOS2, or Teflon and molybdenum, coating applied through a rolled-on process. This creates a strong bonded surface that helps reduce friction, improve heat transfer, and minimize the risk of cold seizures during operation.\u003c\/p\u003e\u003cp\u003eThe machined smooth piston head helps reflect combustion heat and reduce carbon buildup, helping protect the piston crown and support consistent engine operation. An anodized dome further increases heat resistance and durability compared with a non-anodized design. For proper installation, inspect the cylinder and related components, confirm the required oversize bore, and follow the manufacturer's service specifications for ring placement, clearances, and torque.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Fits 2008-2017 Polaris Outlaw 50 models. Manufacturer part number: NA-50015-2K. Vendor part number: 186-50152.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete top-end kit includes piston, rings, wrist pin, retaining clips, top-end bearing, and gasket kit\u003c\/li\u003e\n\u003cli\u003e39.48 mm +0.50 mm oversized piston with an 11:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eMOS2 Teflon and molybdenum coated skirt helps reduce friction, improve heat transfer, and minimize cold-seizure risk\u003c\/li\u003e\n\u003cli\u003eHypereutectic casting process provides reduced expansion, increased wear resistance, and improved high-temperature durability\u003c\/li\u003e\n\u003cli\u003eMachined smooth head helps reflect combustion heat and reduce carbon buildup\u003c\/li\u003e\n\u003cli\u003eAnodized dome increases heat resistance and piston durability\u003c\/li\u003e\n\u003cli\u003eFits 2008-2017 Polaris Outlaw 50 models\u003c\/li\u003e\n\u003cli\u003eBrand: Namura; manufacturer part number: NA-50015-2K; vendor part number: 186-50152\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2007 Polaris Predator 50\u003cbr\u003e\n2008 Polaris Outlaw 50\u003cbr\u003e\n2009 Polaris Outlaw 50\u003cbr\u003e\n2010 Polaris Outlaw 50\u003cbr\u003e\n2011 Polaris Outlaw 50\u003cbr\u003e\n2012 Polaris Outlaw 50\u003cbr\u003e\n2013 Polaris Outlaw 50\u003cbr\u003e\n2014 Polaris Outlaw 50\u003cbr\u003e\n2015 Polaris Outlaw 50\u003cbr\u003e\n2016 Polaris Outlaw 50\u003cbr\u003e\n2017 Polaris Outlaw 50\u003cbr\u003e\n2018 Polaris Outlaw 50","brand":"NAMURA","offers":[{"title":"Default Title","offer_id":67558620791019,"sku":"186-50152","price":97.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/711d-58a16f51a4be5.jpg?v=1790768268","url":"https:\/\/ctracingservices.com\/products\/namura-na-50015-2k-top-end-kit-39-48-mm-0-50-mm-11-1-for-polaris-outlaw-50","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}