{"product_id":"cylinder-works-23403b-piston-kit-478cc-big-bore-3-00mm-oversize-to-97-96mm-11-4-1-compression","title":"Cylinder Works 23403B Piston Kit (478cc Big Bore) - 3.00mm Oversize to 97.96mm, 11.4:1 Compression","description":"Complete standard bore kits. Complete standard bore high compression kits. Complete Big Bore Kits. Includes cylinder, piston kit and gaskets. Top end gasket kit does not include valve stem seals. Matched with vertex pistons to ensure longevity, performance and reduce engine noise. Replacement piston, gaskets, and ring sets available. Cylinder looks just like stock. Nickel silicon carbide plated for longer life. No machine work needed. Replacement cylinder for standard bore only.\u003cbr\u003e\u003cbr\u003eVehicle Fitment:\u003cbr\u003e\u003cbr\u003e2004-2009 Yamaha YFZ450\u003cbr\u003e 2012-2013 Yamaha YFZ450\u003cbr\u003e 2006-2007 Yamaha YFZ450 Bill Balance Edition\u003cbr\u003e 2007-2008 Yamaha YFZ450 SE\u003cbr\u003e 2009-2023 Yamaha YFZ450R\u003cbr\u003e 2009-2023 Yamaha YFZ450R SE\u003cbr\u003e 2010-2011 Yamaha YFZ450X\u003cbr\u003e 2010 Yamaha YFZ450X Bill Balance\u003cbr\u003e 2011 Yamaha YFZ450X SE","brand":"Cylinder Works","offers":[{"title":"Default Title","offer_id":44003540697210,"sku":"8431742","price":284.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0004\/3312\/7455\/files\/6c88d362def5484ab9cfd37430c27927.jpg?v=1764191995","url":"https:\/\/www.powersportsuperstore.com\/products\/cylinder-works-23403b-piston-kit-478cc-big-bore-3-00mm-oversize-to-97-96mm-11-4-1-compression","provider":"Powersport Superstore","version":"1.0","type":"link"}