{"product_id":"namura-standard-bore-piston-rings-for-polaris-big-boss-250-4x6-6x6-1989-93-72mm","title":"Namura Standard Bore Piston Rings for Polaris Big Boss 250 4x6 6x6 1989-93 72mm","description":"\u003ch2\u003eNamura Standard Bore Piston Rings for Polaris\u003c\/h2\u003e\u003cp\u003eThese Namura standard bore piston rings for Polaris are designed to seal the combustion chamber and maintain compression in 250cc engines.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura standard bore piston rings for Polaris serve as a critical component in cylinder rebuilds to prevent blow-by and ensure efficient operation. By utilizing these Namura standard bore piston rings for Polaris, owners can restore power loss caused by worn rings. These Namura standard bore piston rings for Polaris are engineered to exact tolerances for a proper cylinder wall interface.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHardened alloy for long service life\u003c\/li\u003e\n\u003cli\u003ePrecision gap sizing for standard bores\u003c\/li\u003e\n\u003cli\u003eMaintains consistent cylinder pressure\u003c\/li\u003e\n\u003cli\u003eExcellent oil control properties\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Polaris Big Boss 250 4x6 1989-1993\u003c\/li\u003e\n\u003cli\u003efor Polaris Big Boss 250 6x6 1989-1993\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding top ends to restore factory compression\u003c\/li\u003e\n\u003cli\u003eRepairing engines suffering from excessive oil consumption\u003c\/li\u003e\n\u003cli\u003eRefreshing internal engine components during routine maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e72mm\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 Should the cylinder be honed before install? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, a light hone is necessary to ensure the new rings seat correctly against the cylinder wall.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Are these compatible with non-standard pistons? \u003cstrong\u003eA:\u003c\/strong\u003e These rings are specified for standard 72mm bore pistons and may not fit oversized aftermarket options.\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":44792299061334,"sku":"SZ1F02411","price":32.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_66448f23-8137-4af3-aaaa-dde4ace367fd.jpg?v=1780066692","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-piston-rings-for-polaris-big-boss-250-4x6-6x6-1989-93-72mm","provider":"Solid Spare","version":"1.0","type":"link"}