{"product_id":"ref-56-w4865-00a-wo","title":"WOSSNER 95mm FORGED PISTON KIT A,YAMAHA YFZ450\/R\/X 2009-2023","description":"\u003cbody\u003e\n\n\n\n\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003eThe Wossner 8601DA forged piston kit features a 95.00mm bore and is designed for Yamaha YFZ450 models from 2004 to 2005. Manufactured in Germany, this piston is built for optimal strength, heat transfer, and durability under high-performance conditions. Its elliptical shape ensures even pressure distribution and minimizes the risk of piston collapse due to thermal expansion.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eForged piston construction for enhanced strength and durability\u003c\/li\u003e \t\u003cli\u003eDesigned for efficient heat transfer from the combustion chamber to cylinder walls\u003c\/li\u003e \t\u003cli\u003eElliptical profile provides uniform bearing surface under heat expansion\u003c\/li\u003e \t\u003cli\u003eReduces localized pressure and prevents piston collapse\u003c\/li\u003e \t\u003cli\u003eManufactured in Germany\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eBore: 95.00 mm\u003c\/li\u003e \t\u003cli\u003eActual Bore Diameter: 94.95 mm\u003c\/li\u003e \t\u003cli\u003eDisplay: 449 cm³\u003c\/li\u003e \t\u003cli\u003eHub Stroke: 62.00 mm\u003c\/li\u003e \t\u003cli\u003eClearance: 0.05 mm\u003c\/li\u003e \t\u003cli\u003eCompression Height: 25.00 mm\u003c\/li\u003e \t\u003cli\u003eDome Volume: -7.40 cm³\u003c\/li\u003e \t\u003cli\u003eCompression Ratio: OEM (11.90:1)\u003c\/li\u003e \t\u003cli\u003eTheoretical Weight: Not specified\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eCross-Reference OEM Part Numbers\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003ePiston: 8601DA\u003c\/li\u003e \t\u003cli\u003eLock: CW20\u003c\/li\u003e \t\u003cli\u003ePin: WP038\u003c\/li\u003e \t\u003cli\u003eRing Set: 950XSY\u003c\/li\u003e \t\u003cli\u003eRod: P4029\u003c\/li\u003e \t\u003cli\u003ePart No.: 56-W4865+00A.WO\u003c\/li\u003e \t\u003cli\u003eOEM Reference: 5TG-11631-12-00, 4865M09500\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eYamaha YFZ450 2004–2005\u003c\/li\u003e \u003c\/ul\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\n\u003c\/body\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":55594831053174,"sku":"REF 56-W4865+00A.WO","price":195.91,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/7032\/3318\/files\/stock55229_1.jpg?v=1783534840","url":"https:\/\/www.awmotorcycleparts.co.uk\/products\/ref-56-w4865-00a-wo","provider":"AW Motorcycle Parts","version":"1.0","type":"link"}