{"product_id":"namura-040-over-bore-piston-rings-for-polaris-570-sportsman-rzr-ranger-100mm","title":"Namura .040 Over Bore Piston Rings for Polaris 570 Sportsman, RZR, Ranger 100mm","description":"\u003ch2\u003eNamura .040 Over Bore Piston Rings for Polaris\u003c\/h2\u003e\u003cp\u003eThese Namura .040 over bore piston rings are designed for Polaris 570 engines including Sportsman, RZR, and Ranger models with a 100mm bore, replacing worn rings to restore compression and reduce oil consumption. The piston rings feature a precise gap and durable steel construction for long service life. This set of piston rings ensures proper ring-to-cylinder sealing for increased power and efficiency.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis set of Namura .040 over bore piston rings is intended for the Polaris 570 engine family (Sportsman, RZR, Ranger) and uses a 100mm bore diameter. The piston rings are manufactured from high-quality steel to handle the demands of ATV and UTV operation. These rings restore compression and reduce blow-by, improving overall engine performance and reliability.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision ground ring ends for consistent gap tolerance\u003c\/li\u003e\n\u003cli\u003eMade from high-strength steel for wear resistance\u003c\/li\u003e\n\u003cli\u003e.040 over bore size accommodates reconditioned cylinders\u003c\/li\u003e\n\u003cli\u003eDesigned to work with standard ring groove dimensions\u003c\/li\u003e\n\u003cli\u003eReduces oil consumption and prevents smoking at start-up\u003c\/li\u003e\n\u003cli\u003eImproves cylinder sealing for maximum compression\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Polaris Sportsman 570\u003c\/li\u003e\n\u003cli\u003efor Polaris RZR 570\u003c\/li\u003e\n\u003cli\u003efor Polaris Ranger 570\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRecreational trail riding and mudding\u003c\/li\u003e\n\u003cli\u003eUtility work around the farm or ranch\u003c\/li\u003e\n\u003cli\u003eSport riding and light racing applications\u003c\/li\u003e\n\u003cli\u003eEngine rebuilds during top end overhauls\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 Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 in\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 Are these rings compatible with a stock cylinder after a bore? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, these .040 over rings are meant for cylinders that have been bored to 100mm, typically during a rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need to gap these rings before installation? \u003cstrong\u003eA:\u003c\/strong\u003e Always check ring end gap according to factory specifications; these rings are pre-sized but final gapping should be verified during assembly.\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":44847201845334,"sku":"SZ1F05584","price":48.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_ecb880df-5708-494d-b549-e8308804e052.jpg?v=1781059624","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-piston-rings-for-polaris-570-sportsman-rzr-ranger-100mm","provider":"Solid Spare","version":"1.0","type":"link"}