{"product_id":"piston-kit-87-90-trx250-66-00-wossner-8189da-honda-atv","title":"Piston Kit 87-90 TRX250 66.00, Wossner 8189DA Honda ATV","description":"\u003cp\u003eWossner forged piston kit for Honda ATC250R and TRX250R models from 1987 to 1990, featuring a standard bore size of 66.00 mm. This piston is engineered for high-performance 2-stroke engine applications and designed to withstand thermal and mechanical stress. Its elliptical design provides even expansion, reducing localised pressure and enhancing durability. Manufactured in Germany with high-precision standards.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e \u003cp\u003eForged piston construction for enhanced strength and reliability\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eDesigned to improve heat transfer from combustion chamber to cylinder wall\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eElliptical profile for even bearing contact during thermal expansion\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eEngineered for 2-stroke engines\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eMade 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: 66.00 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eActual Bore Diameter: 65.94 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eCompression Height: 45.00 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eDisplay Volume: 246 cm³\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eStroke: 86.00 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eClearance: 0.09 mm\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eCompression Ratio: 2-stroke (Wossner and OEM)\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\u003ePiston Kit Part No.: 8189DA\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eLock P\/N: CW18\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003ePin P\/N: WP033\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eRing Set P\/N: RSB6600 (x2)\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eAlternate Part No.: 56-W562.P0.WO\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\u003eHonda ATC250R (1987–1990)\u003c\/p\u003e \u003c\/li\u003e \u003cli\u003e \u003cp\u003eHonda TRX250R (1987–1990)\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\u003eHONDA\u003c\/td\u003e\n\u003ctd\u003eTRX 250\u003c\/td\u003e\n\u003ctd\u003e1987-1989\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHONDA\u003c\/td\u003e\n\u003ctd\u003eTRX 350\u003c\/td\u003e\n\u003ctd\u003e2000-2006\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":57506609004924,"sku":"56-W562.P0.WO","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3952\/8167\/files\/stock55804_1.jpg?v=1790481637","url":"https:\/\/radhouse.co.uk\/products\/piston-kit-87-90-trx250-66-00-wossner-8189da-honda-atv","provider":"Radhouse","version":"1.0","type":"link"}