{"product_id":"piston-kit-01-04-yfm660-100-a-wossner-8507da-yamaha-atv-3yf-11631-00-x0","title":"Piston Kit 01-04 YFM660 100 A, Wossner 8507DA Yamaha ATV 3YF-11631-00-X0","description":"\u003cp\u003eThis Wossner Piston Kit features a 100mm bore and is designed as a standard replacement for various Yamaha motorcycle and ATV models, including the XTZ660 Tenere and Raptor, as well as the YFM660R Raptor and YFM660F Grizzly. Forged in Germany, the piston is engineered to optimise heat transfer and minimise stress under thermal expansion, thanks to its elliptical design and high-quality construction.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003eForged construction offers superior strength and reliability\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eEngineered for optimal combustion chamber heat transfer\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eElliptical design distributes thrust loads evenly and prevents piston collapse\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eManufactured in Germany\u003c\/p\u003e \u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003eBore: 100.00 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eMeasured Bore: 99.93 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eClearance: 0.07 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eCompression Ratio: OEM\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eOEM Compression Ratio: 9.20:1\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eDome Volume: -0.30 cm³\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eCompression Height: 27.00 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eDisplay: 660 cm³\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eHub Stroke: 84.00 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003ePart No.: 56-W8507+00A.WO\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003ePiston Kit Model: 8507DA (STD)\u003c\/p\u003e \u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCross-Reference OEM Part Numbers\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003e3YF-11631-00-X0\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e4966M10000\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003e01.2660.000\u003c\/p\u003e \u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003eYamaha XTZ660 Tenere 1991–1998\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eYamaha XTZ660 Raptor 1991–1998\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eYamaha YFM660R Raptor 2001–2009\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eYamaha YFM660F Grizzly 2001–2009\u003c\/p\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- venture-connect-compatibility:start --\u003e\n\u003csection class=\"venture-connect-compatibility\"\u003e\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cp\u003ePlease check the exact model and year before ordering.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eYXR RHINO 660\u003c\/td\u003e\n\u003ctd\u003e2004-2007\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eYFM RAPTOR 660\u003c\/td\u003e\n\u003ctd\u003e2001-2005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eYFM F GRIZZLY 660\u003c\/td\u003e\n\u003ctd\u003e2002-2008\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eXTZ 660\u003c\/td\u003e\n\u003ctd\u003e1991-1996\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eYFM F GRIZZLY 660\u003c\/td\u003e\n\u003ctd\u003e2002-2006\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eXTZ 600\u003c\/td\u003e\n\u003ctd\u003e1991-1998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eSZR 660\u003c\/td\u003e\n\u003ctd\u003e1995-1997\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eXTZ TENERE 660\u003c\/td\u003e\n\u003ctd\u003e1991-1998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYAMAHA\u003c\/td\u003e\n\u003ctd\u003eXTZ 660\u003c\/td\u003e\n\u003ctd\u003e1991-1998\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003c\/section\u003e\n\u003c!-- venture-connect-compatibility:end --\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":57506649506172,"sku":"56-W8507+00A.WO","price":244.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3952\/8167\/files\/stock56986_1.jpg?v=1790484358","url":"https:\/\/radhouse.co.uk\/products\/piston-kit-01-04-yfm660-100-a-wossner-8507da-yamaha-atv-3yf-11631-00-x0","provider":"Radhouse","version":"1.0","type":"link"}