{"product_id":"namura-nx-40025-c-ceramic-coated-piston-kit-for-yamaha-yz250-and-yz250x","title":"Namura NX-40025-C Ceramic-Coated Piston Kit for Yamaha YZ250 and YZ250X","description":"\u003cp\u003eThe Namura NX-40025-C Piston Kit is a precision replacement piston assembly designed for select Yamaha two-stroke motocross and cross-country motorcycles. This ceramic-coated piston kit features a 66.37 mm bore size, a 10.9:1 compression ratio, and a +0.02 mm oversize specification for applications requiring accurate replacement components. It is engineered to support dependable engine performance, proper cylinder fitment, and consistent operation when installed according to the motorcycle manufacturer's service procedures.\u003c\/p\u003e\u003cp\u003eEach kit includes an individually wrapped Namura piston, a set of OEM-quality piston rings packaged separately, an OEM-quality wrist pin, and cir-clips. The components are supplied together to simplify piston replacement and help ensure the key hardware required for installation is included. Verify cylinder condition, piston-to-cylinder clearance, ring end gap, and all installation specifications before assembly.\u003c\/p\u003e\u003cp\u003eFitment includes 1999–2006 Yamaha YZ250 models and 2016–2017 Yamaha YZ250X models. This product is manufactured by Namura and is identified by manufacturer part number NX-40025-C and vendor part number 184-40025C. Confirm the model year, cylinder specifications, and required oversize before ordering to ensure proper compatibility.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e66.37 mm bore size with a +0.02 mm oversize specification\u003c\/li\u003e\n\u003cli\u003e10.9:1 compression ratio for compatible Yamaha engine applications\u003c\/li\u003e\n\u003cli\u003eCeramic-coated piston designed for select Yamaha YZ250 and YZ250X models\u003c\/li\u003e\n\u003cli\u003eIndividually wrapped Namura piston for protected handling\u003c\/li\u003e\n\u003cli\u003eOEM-quality piston rings supplied in a separate package\u003c\/li\u003e\n\u003cli\u003eOEM-quality wrist pin and cir-clips included\u003c\/li\u003e\n\u003cli\u003eFits 1999–2006 Yamaha YZ250 and 2016–2017 Yamaha YZ250X models\u003c\/li\u003e\n\u003cli\u003eBrand: Namura\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: NX-40025-C\u003c\/li\u003e\n\u003cli\u003eVendor part number: 184-40025C\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n1999 Yamaha YZ250\u003cbr\u003e\n2000 Yamaha YZ250\u003cbr\u003e\n2001 Yamaha YZ250\u003cbr\u003e\n2002 Yamaha YZ250\u003cbr\u003e\n2003 Yamaha YZ250\u003cbr\u003e\n2004 Yamaha YZ250\u003cbr\u003e\n2005 Yamaha YZ250\u003cbr\u003e\n2006 Yamaha YZ250\u003cbr\u003e\n2007 Yamaha YZ250\u003cbr\u003e\n2008 Yamaha YZ250\u003cbr\u003e\n2009 Yamaha YZ250\u003cbr\u003e\n2010 Yamaha YZ250\u003cbr\u003e\n2011 Yamaha YZ250\u003cbr\u003e\n2012 Yamaha YZ250\u003cbr\u003e\n2013 Yamaha YZ250\u003cbr\u003e\n2014 Yamaha YZ250\u003cbr\u003e\n2015 Yamaha YZ250\u003cbr\u003e\n2016 Yamaha YZ250\u003cbr\u003e\n2016 Yamaha YZ250X\u003cbr\u003e\n2017 Yamaha YZ250\u003cbr\u003e\n2017 Yamaha YZ250X\u003cbr\u003e\n2018 Yamaha YZ250\u003cbr\u003e\n2018 Yamaha YZ250X\u003cbr\u003e\n2019 Yamaha YZ250\u003cbr\u003e\n2019 Yamaha YZ250X\u003cbr\u003e\n2020 Yamaha YZ250\u003cbr\u003e\n2020 Yamaha YZ250X\u003cbr\u003e\n2021 Yamaha YZ250\u003cbr\u003e\n2021 Yamaha YZ250X\u003cbr\u003e\n2022 Yamaha YZ250\u003cbr\u003e\n2022 Yamaha YZ250X","brand":"NAMURA","offers":[{"title":"Default Title","offer_id":67552690864363,"sku":"184-40025C","price":89.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/6f0f-5f7df4e25ff92.gif?v=1790739996","url":"https:\/\/ctracingservices.com\/products\/namura-nx-40025-c-ceramic-coated-piston-kit-for-yamaha-yz250-and-yz250x","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}