{"product_id":"namura-020-over-bore-piston-rings-for-polaris-sportsman-550-2009-2014-97-1mm","title":"Namura .020 Over Bore Piston Rings for Polaris Sportsman 550 2009-2014 - 97.1mm","description":"\u003ch2\u003eNamura .020 Over Bore Piston Rings for Polaris\u003c\/h2\u003e\u003cp\u003eThese Namura .020 over bore piston rings are designed for Polaris Sportsman 550 models from 2009 to 2014, measuring 97.1mm, to restore compression in rebuilt engines.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThese Namura .020 over bore piston rings are precision-made for Polaris Sportsman 550 ATVs from 2009 to 2014, with a 97.1mm bore size. They are ideal for engine rebuilds requiring oversized rings to restore cylinder seal and compression. Using quality piston rings ensures reliable engine performance.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-ground ring faces for optimal cylinder seal\u003c\/li\u003e\n\u003cli\u003eDuctile iron material for wear resistance\u003c\/li\u003e\n\u003cli\u003e.020 over bore size for reconditioned cylinders\u003c\/li\u003e\n\u003cli\u003eIncludes top and second compression rings plus oil ring set\u003c\/li\u003e\n\u003cli\u003eDesigned for high-rpm and high-torque Polaris engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Polaris Sportsman 550 (2009-2014)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eEngine rebuilds after top-end wear\u003c\/li\u003e\n\u003cli\u003eRestoring compression and reducing oil consumption\u003c\/li\u003e\n\u003cli\u003ePerformance restoration for trail and utility ATVs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e97.1mm (0.020 over bore)\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need to hone the cylinder before installing these rings? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, proper cylinder preparation with a cross-hatch hone is recommended for ring seating and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Are these rings compatible with stock pistons? \u003cstrong\u003eA:\u003c\/strong\u003e They are designed for .020 over bore pistons; stock pistons require standard size rings.\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":44847195881558,"sku":"SZ1F05492","price":48.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_0f4d5721-9840-485c-994b-60ca4d248865.jpg?v=1781059479","url":"https:\/\/www.solidspare.com\/products\/namura-020-over-bore-piston-rings-for-polaris-sportsman-550-2009-2014-97-1mm","provider":"Solid Spare","version":"1.0","type":"link"}