{"product_id":"wossner-4085da-piston-kit-2023-2024-yamaha-yz450f-96-96mm","title":"Wossner 4085DA Piston Kit 2023-2024 Yamaha YZ450F (96.96mm)","description":"\u003cp\u003eIs your modern four-stroke losing its competitive edge? When it’s time for a top-end refresh, the \u003cstrong\u003eWossner 4085DA Piston Kit\u003c\/strong\u003e provides the ultimate racing performance your Yamaha deserves. Engineered for riders who demand precision, this kit restores lost compression and ensures your YZ450F remains a front-runner. At \u003cstrong\u003eMoto-House MX\u003c\/strong\u003e, we only stock components that meet the rigorous demands of professional motocross.\u003c\/p\u003e\n\n\u003cp\u003eForged from aerospace-grade aluminum alloy, this Wossner piston features a double-bridge forging and a 3D crown design for maximum structural integrity. The skirt is treated with a high-quality permanent coating, significantly reducing friction and \"piston rock\" for a quieter, smoother-running engine. This optimized machining achieves a perfect balance of lightness and extreme strength in critical areas like the crown and skirt wall, ensuring your engine can handle high-RPM abuse with unmatched durability.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: Wossner 4085DA Piston Kit\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDouble Bridge Forging:\u003c\/strong\u003e Enhanced structural support for high-output 4-stroke engines.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAerospace Grade Aluminum:\u003c\/strong\u003e Forged for superior strength-to-weight ratio and heat resistance.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAnti-Friction Skirt Coating:\u003c\/strong\u003e Permanent coating reduces wear and improves engine performance.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3D Crown Design:\u003c\/strong\u003e Optimized combustion chamber fit for efficient power delivery.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eComplete Rebuild Kit:\u003c\/strong\u003e Includes the piston, ring set, wrist pin, and retaining clips for a seamless installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\" border=\"1\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n      \u003cth style=\"padding: 8px; text-align: left;\"\u003eYear Range\u003c\/th\u003e\n      \u003cth style=\"padding: 8px; text-align: left;\"\u003eVehicle Brand\u003c\/th\u003e\n      \u003cth style=\"padding: 8px; text-align: left;\"\u003eVehicle Model \u0026amp; Size\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"padding: 8px;\"\u003e2023 - 2024\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eYamaha\u003c\/td\u003e\n      \u003ctd style=\"padding: 8px;\"\u003eYZ450F\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this a standard size piston for the YZ450F?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, this is a \"Standard Size A\" piston with a 96.96mm diameter, designed for the standard 97.00mm bore of the 2023-2024 Yamaha YZ450F.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the compression ratio of this Wossner piston?\u003c\/strong\u003e\u003cbr\u003e\nA: This kit maintains a high-performance 13.0:1 compression ratio, ideal for maintaining OEM-plus power levels and reliability.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is included in the box?\u003c\/strong\u003e\u003cbr\u003e\nA: The kit is ready to install and includes the Piston (#4085DA), Ring Set (#RIK97.00), Wrist Pin (#WP072-SP), and Retaining Clips (#CW18).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eUpgrade your engine with the choice of professionals. Buy the Wossner 4085DA Piston Kit now at Moto-House MX.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions – is located in Clermont\/Montverde, FL. The best motocross shop in Central Florida.\u003c\/strong\u003e\u003c\/p\u003e","brand":"WOSSNER","offers":[{"title":"Default Title","offer_id":44170487070803,"sku":"4085DA","price":224.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/4668210.png?v=1772765418","url":"https:\/\/motohousemx.com\/products\/wossner-4085da-piston-kit-2023-2024-yamaha-yz450f-96-96mm","provider":"Moto-House MX","version":"1.0","type":"link"}