{"product_id":"piston-kit-xr400-trx400-87-00-forged-wossner-8604d200","title":"Piston Kit XR400 TRX400 87.00, Forged Wossner 8604D200","description":"\u003cp\u003eWössner forged piston kit with an 87mm bore, designed for Honda XR400R motorcycles and TRX400 series ATVs. Manufactured in Germany, this high-performance piston enhances strength, heat transfer, and durability. The elliptical design ensures uniform bearing surface distribution, reducing localized pressure and preventing piston collapse.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eForged construction for superior strength and durability\u003c\/li\u003e \u003cli\u003eOptimized heat transfer to cylinder walls\u003c\/li\u003e \u003cli\u003eElliptical design for uniform bearing surface under heat expansion\u003c\/li\u003e \u003cli\u003eIncreased compression ratio for improved engine performance\u003c\/li\u003e \u003cli\u003eMade in Germany\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eBore: 87mm (86.94mm actual)\u003c\/li\u003e \u003cli\u003eDisplay: 397 cm³\u003c\/li\u003e \u003cli\u003eStroke: 70.00mm\u003c\/li\u003e \u003cli\u003eClearance: 0.06mm\u003c\/li\u003e \u003cli\u003eWössner Compression Ratio: 11.00:1\u003c\/li\u003e \u003cli\u003eOEM Compression Ratio: 10.00:1\u003c\/li\u003e \u003cli\u003eDome Volume: +3.20 cm³\u003c\/li\u003e \u003cli\u003eCompression Height: 26.20mm\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eCross-Reference OEM Part Numbers\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eWössner Piston: 8604D200\u003c\/li\u003e \u003cli\u003eLock: CW20\u003c\/li\u003e \u003cli\u003ePin: WP052\u003c\/li\u003e \u003cli\u003eRing Set: 870XSY\u003c\/li\u003e \u003cli\u003eRod: P4021\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eVehicle Fitments\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eHonda XR400R (1996-2004)\u003c\/li\u003e \u003cli\u003eHonda TRX400EX (1999-2008)\u003c\/li\u003e \u003cli\u003eHonda TRX400X (2009-2012)\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\u003eHONDA\u003c\/td\u003e\n\u003ctd\u003eXR 400\u003c\/td\u003e\n\u003ctd\u003e1996-2004\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHONDA\u003c\/td\u003e\n\u003ctd\u003eXR R 400\u003c\/td\u003e\n\u003ctd\u003e1996-2004\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHONDA\u003c\/td\u003e\n\u003ctd\u003eTRX EX 400\u003c\/td\u003e\n\u003ctd\u003e1999-2008\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":57506557755772,"sku":"56-W4606+200.WO","price":202.09,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3952\/8167\/files\/stock54720_1.jpg?v=1790479095","url":"https:\/\/radhouse.co.uk\/products\/piston-kit-xr400-trx400-87-00-forged-wossner-8604d200","provider":"Radhouse","version":"1.0","type":"link"}