{"product_id":"oro2u-56-w4815-050-wo-39ecb7ea","title":"Piston Kit 84-90 YZ490 87.5MM, Forged Wossner 8317D050","description":"\u003cp\u003ePiston Kit 84-90 YZ490 87.5MM, Forged Wossner 8317D050. Find the product specifications and compatibility information below.\u003c\/p\u003e\u003ch3\u003eProduct details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eProduct: Piston Kit 84-90 YZ490 87.5MM, Forged Wossner 8317D050\u003c\/li\u003e\n\u003cli\u003ePart number: 56-W4815.050.WO\u003c\/li\u003e\n\u003cli\u003eBrand: Wossner\u003c\/li\u003e\n\u003cli\u003eWossner 87.50mm forged piston kit is designed for strength and durability. Engineered for optimal heat transfer, it ensures efficient cooling of the combustion chamber. The elliptical design provides a uniform bearing surface, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany for precision and reliability.\u003c\/li\u003e\n\u003cli\u003eForged construction for enhanced strength and longevity\u003c\/li\u003e\n\u003cli\u003eOptimized heat transfer for improved engine performance\u003c\/li\u003e\n\u003cli\u003eElliptical design prevents piston collapse and ensures even load distribution\u003c\/li\u003e\n\u003cli\u003eManufactured in Germany for high-quality standards\u003c\/li\u003e\n\u003cli\u003eBore Size: 87.50mm\u003c\/li\u003e\n\u003cli\u003eStroke: 82.00mm\u003c\/li\u003e\n\u003cli\u003eCompression Height: 40.00mm\u003c\/li\u003e\n\u003cli\u003eNumber of Rings: 2\u003c\/li\u003e\n\u003cli\u003eClip Part Number: CW18\u003c\/li\u003e\n\u003cli\u003ePin Size: 18mm\u003c\/li\u003e\n\u003cli\u003ePin Part Number: WP042\u003c\/li\u003e\n\u003cli\u003eCylinders: 1\u003c\/li\u003e\n\u003cli\u003eCompatible Needle Bearing: N1022\u003c\/li\u003e\n\u003cli\u003eCross-Reference OEM Part Numbers\u003c\/li\u003e\n\u003cli\u003ePart No: 56-W4815.050.WO\u003c\/li\u003e\n\u003cli\u003eWossner Part No: 8317D050\u003c\/li\u003e\n\u003cli\u003eVehicle Fitments\u003c\/li\u003e\n\u003cli\u003eYamaha YZ490 (1984 - 1990)\u003c\/li\u003e\n\u003cli\u003eYamaha WR500 (1992 - 1993)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eNo separate vehicle-fitment table record was supplied for this part. Check any application details, sizes and specifications above before ordering.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eWhy buy from FDY Performance?\u003c\/h3\u003e\u003cp\u003eFDY Performance is a UK motorcycle and ATV parts specialist. We help riders find parts with clear specifications, vehicle fitment information where available and support before ordering.\u003c\/p\u003e\u003ch3\u003eNeed help choosing the right part?\u003c\/h3\u003e\u003cp\u003eContact us with your bike make, model and year, plus the part number shown above, and we can help you check compatibility.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCall: \u003ca href=\"tel:+447765534854\"\u003e07765 534854\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eEmail: \u003ca href=\"mailto:fdy@fdyperformance.com\"\u003efdy@fdyperformance.com\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eWebsite: \u003ca href=\"https:\/\/www.fdyperformance.com\"\u003ewww.fdyperformance.com\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wossner","offers":[{"title":"Default Title","offer_id":59663784444252,"sku":"56-W4815.050.WO","price":195.88,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0866\/6982\/0252\/files\/stock116508_1.jpg?v=1793120489","url":"https:\/\/fdyperformance.com\/products\/oro2u-56-w4815-050-wo-39ecb7ea","provider":"FDY performance Ltd","version":"1.0","type":"link"}