{"product_id":"namura-standard-bore-size-b-top-end-kit-for-polaris-sportsman-850-scrambler-87mm","title":"Namura Standard Bore Size B Top End Kit for Polaris Sportsman 850 Scrambler 87mm","description":"\u003ch2\u003eNamura Standard Bore Size B Top End Kit for Polaris Sportsman 850 Scrambler 87mm\u003c\/h2\u003e\u003cp\u003eThis top end kit is a complete cylinder and piston assembly for Polaris Sportsman 850 and Scrambler 850 engines, with a standard bore size of 87mm (Size B).\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis top end kit from Namura provides all necessary components for rebuilding the top end of your Polaris Sportsman 850 or Scrambler 850 engine. It includes a cylinder, piston, rings, wrist pin, clips, and gaskets machined to standard 87mm bore specifications. Restore factory compression and performance with this reliable kit.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined cylinder matches OEM bore dimensions\u003c\/li\u003e\n\u003cli\u003eHigh-quality piston rings ensure proper sealing\u003c\/li\u003e\n\u003cli\u003eComplete gasket set prevents oil and compression leaks\u003c\/li\u003e\n\u003cli\u003eIncludes wrist pin and clips for easy assembly\u003c\/li\u003e\n\u003cli\u003eStandard bore design for direct replacement of worn components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Polaris Sportsman 850\u003c\/li\u003e\n\u003cli\u003efor Polaris Scrambler 850\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTrail riding and recreational off-road use\u003c\/li\u003e\n\u003cli\u003eUtility and farm work requiring reliable power\u003c\/li\u003e\n\u003cli\u003eEngine rebuilds after high mileage or overheating\u003c\/li\u003e\n\u003cli\u003eRestoring compression and performance in worn engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e87mm (Standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSize B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTop End Kit (cylinder, piston, rings, gaskets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNamura\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Engine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolaris 850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this standard bore kit include the piston and rings? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit comes with a new piston, rings, wrist pin, and clips, along with a cylinder and gaskets for a complete top end rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I use this kit if my cylinder is slightly scored? \u003cstrong\u003eA:\u003c\/strong\u003e This kit is intended for standard bore applications; if your cylinder is scored, you may need an overbore kit or cylinder repair.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44949970321494,"sku":"SZ1F16434","price":461.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_faaa0e84-88b7-4d98-9f34-99dc28ea632c.jpg?v=1781401606","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-size-b-top-end-kit-for-polaris-sportsman-850-scrambler-87mm","provider":"Solid Spare","version":"1.0","type":"link"}