{"product_id":"namura-na-50000-standard-71-96-mm-piston-kit-for-polaris-250","title":"Namura NA-50000 Standard 71.96 mm Piston Kit for Polaris 250","description":"Will not accept OEM rings and rings will not work on OEM piston\n\u003cp\u003eThe Namura NA-50000 Piston Kit is a standard-size replacement piston assembly designed for select Polaris 250 ATV applications. Manufactured by Namura, this kit supports dependable engine service and is intended for restoration or repair work where the original piston requires replacement. The standard 71.96 mm piston size is designed for compatible factory-standard cylinder applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Fits 1991–1992 Polaris Big Boss 250 6X6; 1988–1993 Polaris Trail Boss 250 2X4; and 1989–1990 Polaris Trail Boss 250 4X4. Verify the model year, engine specifications, cylinder condition, and piston measurements before installation to confirm compatibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eImportant compatibility note:\u003c\/strong\u003e The Namura NA-50000 piston kit will not accept OEM piston rings, and the included or specified rings are not compatible with an OEM piston. Use the correct ring set with this Namura piston and follow the manufacturer’s installation procedures, clearance specifications, and break-in recommendations. Manufacturer part number: NA-50000. Vendor part number: NA-50000.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eStandard-size 71.96 mm piston kit for compatible Polaris 250 engines\u003c\/li\u003e\n\u003cli\u003eBrand: Namura\u003c\/li\u003e\n\u003cli\u003eModel: NA-50000\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: NA-50000\u003c\/li\u003e\n\u003cli\u003eVendor part number: NA-50000\u003c\/li\u003e\n\u003cli\u003eFitment: 1991–1992 Polaris Big Boss 250 6X6\u003c\/li\u003e\n\u003cli\u003eFitment: 1988–1993 Polaris Trail Boss 250 2X4\u003c\/li\u003e\n\u003cli\u003eFitment: 1989–1990 Polaris Trail Boss 250 4X4\u003c\/li\u003e\n\u003cli\u003eCompatibility: Will not accept OEM piston rings, and the specified rings will not work with an OEM piston\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1985 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1986 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1987 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1987 Polaris Trail Boss 250 4X4\u003cbr\u003e\n1988 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1988 Polaris Trail Boss 250 4X4\u003cbr\u003e\n1988 Polaris Trail Boss 250R\/Es\u003cbr\u003e\n1989 Polaris Big Boss 250 4X6\u003cbr\u003e\n1989 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1989 Polaris Trail Boss 250 4X4\u003cbr\u003e\n1990 Polaris Big Boss 250 4X6\u003cbr\u003e\n1990 Polaris Trail Blazer 250\u003cbr\u003e\n1990 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1990 Polaris Trail Boss 250 4X4\u003cbr\u003e\n1991 Polaris Big Boss 250 4X6\u003cbr\u003e\n1991 Polaris Big Boss 250 6X6\u003cbr\u003e\n1991 Polaris Trail Blazer 250\u003cbr\u003e\n1991 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1991 Polaris Trail Boss 250 4X4\u003cbr\u003e\n1992 Polaris Big Boss 250 4X6\u003cbr\u003e\n1992 Polaris Big Boss 250 6X6\u003cbr\u003e\n1992 Polaris Trail Blazer 250\u003cbr\u003e\n1992 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1992 Polaris Trail Boss 250 4X4\u003cbr\u003e\n1993 Polaris Trail Blazer 250\u003cbr\u003e\n1993 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1993 Polaris Trail Boss 250 4X4\u003cbr\u003e\n1994 Polaris Trail Blazer 250\u003cbr\u003e\n1994 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1995 Polaris Trail Blazer 250\u003cbr\u003e\n1995 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1996 Polaris Trail Blazer 250\u003cbr\u003e\n1996 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1997 Polaris Trail Blazer 250\u003cbr\u003e\n1997 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1998 Polaris Trail Blazer 250\u003cbr\u003e\n1998 Polaris Trail Boss 250 2X4\u003cbr\u003e\n1999 Polaris Trail Blazer 250\u003cbr\u003e\n1999 Polaris Trail Boss 250 2X4\u003cbr\u003e\n2000 Polaris Trail Blazer 250\u003cbr\u003e\n2000 Polaris Xplorer 250 4X4\u003cbr\u003e\n2001 Polaris Trail Blazer 250\u003cbr\u003e\n2001 Polaris Xplorer 250 4X4\u003cbr\u003e\n2002 Polaris Trail Blazer 250\u003cbr\u003e\n2002 Polaris Xplorer 250 4X4\u003cbr\u003e\n2003 Polaris Trail Blazer 250\u003cbr\u003e\n2004 Polaris Trail Blazer 250\u003cbr\u003e\n2005 Polaris Trail Blazer 250\u003cbr\u003e\n2006 Polaris Trail Blazer 250","brand":"NAMURA","offers":[{"title":"Default Title","offer_id":67557509431531,"sku":"187-50000","price":89.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/173a-5e94cdc334824.gif?v=1790754514","url":"https:\/\/ctracingservices.com\/products\/namura-na-50000-standard-71-96-mm-piston-kit-for-polaris-250","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}