{"product_id":"wiseco-81mm-ring-set-1-0-x-1-0-x-2mm-1-cylinder","title":"Wiseco 81mm Ring Set 1.0 x 1.0 x 2mm - 1 Cylinder","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e 3189XG\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eWiseco 81mm Ring Set 1.0 x 1.0 x 2mm - 1 Cylinder Polaris Sportsman 400 2001-2005\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eWiseco 81mm ring sets deliver precise fitment for Polaris Sportsman 400 models from 2001 to 2005. Designed for 4-stroke pistons these rings ensure strong compression sealing and effective oil control. Tested for high-performance demands in powersports applications.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact Sizing:\u003c\/strong\u003e 81mm bore with 1.0mm top 1.0mm second and 2mm oil rings for one cylinder matches Wiseco piston specs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression Sealing:\u003c\/strong\u003e Tight ring-to-cylinder contact reduces blow-by for consistent power output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Control:\u003c\/strong\u003e 2mm oil ring design scrapes excess oil to keep combustion chamber clean and reduce drag\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace-Tested Design:\u003c\/strong\u003e Developed through dyno and track testing for durability under high RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Quality:\u003c\/strong\u003e High-strength steel construction resists wear in demanding 4-stroke engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePair with Wiseco pistons for best results verify bore size before install\u003c\/li\u003e\n\u003cli\u003eInspect rings for end gap during assembly adjust as needed per service manual\u003c\/li\u003e\n\u003cli\u003eShips in protective packaging handles rough transit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eClean cylinder bore thoroughly before ring install use ring compressor tool\u003c\/li\u003e\n\u003cli\u003eCompatible with stock Wiseco pistons no special hardware required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2005\u003c\/td\u003e\n\u003ctd\u003ePolaris\u003c\/td\u003e\n\u003ctd\u003eSportsman 400\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2001-2003\u003c\/td\u003e\n\u003ctd\u003ePolaris\u003c\/td\u003e\n\u003ctd\u003eScrambler 400\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000-2002\u003c\/td\u003e\n\u003ctd\u003ePolaris\u003c\/td\u003e\n\u003ctd\u003eTrail Boss 400\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose Wiseco?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProven leader in powersports piston components for decades\u003c\/li\u003e\n\u003cli\u003eRings built to exact tolerances for long-term reliability\u003c\/li\u003e\n\u003cli\u003eEngineered and tested for real-world racing conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Does this ring set fit 2004 Polaris Sportsman 400 EFI?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes it matches the 81mm bore on 2001-2005 Sportsman 400 including EFI models confirm your piston bore size\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What ring material is used?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e High-strength cast iron top and second rings with steel oil ring for wear resistance and heat tolerance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Is a warranty included?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Wiseco offers manufacturer defect coverage contact seller for details proper install required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e USPS First Class or UPS Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Compact box 4 x 3 x 1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.2 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":44316901900367,"sku":"WIS3189XG","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/wiseco-81mm-ring-set-1_0-x-1_0-x-2mm-1-cylinder-wiseco.jpg?v=1767811051","url":"https:\/\/www.blackopsautoworks.com\/products\/wiseco-81mm-ring-set-1-0-x-1-0-x-2mm-1-cylinder","provider":"Black Ops Auto Works","version":"1.0","type":"link"}