{"product_id":"wossner-4086da-piston-kit-2023-2026-yamaha-yz450f-wr450f-yz450fx-motocross","title":"Wossner 4086DA Piston Kit - 2023-2026 Yamaha YZ450F WR450F YZ450FX Motocross","description":"\u003ch3\u003eWossner 4086DA Pro Series Forged Piston Kit\u003c\/h3\u003e\n\u003cp\u003eWhen your high-performance 450cc engine demands a top-end refresh, the Wossner 4086DA Piston Kit is the definitive choice for restoring compression and Factory Quality throttle response. Engineered specifically for the latest generation of Yamaha powerplants, this kit ensures your machine maintains its competitive edge on the track or the trail. At Moto-House MX, we provide the precision-forged components that champions rely on for consistent, rugged performance.\u003c\/p\u003e\n\u003cp\u003eForged from aerospace-grade aluminum alloy, this Pro Series piston is designed for extreme lightness without sacrificing structural strength in critical areas like the crown and skirt walls. The permanent skirt coating reduces friction and piston rock, resulting in a quieter engine and smoother power delivery across the RPM range. Designed to withstand the high-intensity environment of a 13.5:1 compression ratio, this kit provides the durability needed for professional-grade off-road racing.\u003c\/p\u003e\n\u003ch3\u003eTop Features: Wossner 4086DA Piston Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAerospace Forged Alloy:\u003c\/b\u003e Premium aluminum construction for superior heat resistance and strength.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePermanent Skirt Coating:\u003c\/b\u003e Minimizes friction and wear for a quieter running engine and faster break-in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePro Series Machining:\u003c\/b\u003e Optimized for weight savings while maintaining maximum integrity in high-stress zones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThree-Ring Design:\u003c\/b\u003e Provides exceptional oil control and a reliable combustion seal for 4-stroke performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eComplete Assembly:\u003c\/b\u003e Kit includes the forged piston, high-quality rings, wrist pin, and clips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e When rebuilding your Yamaha 450 engine, always use a new top-end gasket kit and verify that the cylinder bore is within factory service limits for a 97.00mm standard size piston.\u003c\/p\u003e\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\" cellpadding=\"8\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eVehicle Brand\u003c\/th\u003e\n\u003cth\u003eVehicle Model \u0026amp; Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023-2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eWR450F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ450FX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: Is this a Standard Size piston?\u003c\/b\u003e\u003cbr\u003eA: Yes, this is a Standard Size A (96.96mm) piston designed for the stock 97.00mm Yamaha bore.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What compression ratio does this piston provide?\u003c\/b\u003e\u003cbr\u003eA: This kit is designed for a 13.5:1 compression ratio, matching the high-performance requirements of modern 450cc motocross engines.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Does this kit fit the older YZ450F models?\u003c\/b\u003e\u003cbr\u003eA: No, this specific kit is optimized for the updated engine platform found in the 2023-2026 YZ450F and 2024+ WR\/FX models.\u003c\/p\u003e\n\u003ch3\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVertex Top End Gasket Kit:\u003c\/b\u003e Essential for a leak-free seal during your top-end rebuild.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eYamalube 4-Stroke Engine Oil:\u003c\/b\u003e Keep your new forged piston lubricated with factory-recommended fluids.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDon't let a worn piston slow you down. Restore your Yamaha's power today. Buy now at Moto-House MX!\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMoto-House MX – Choice of Champions\u003c\/b\u003e – is located in Clermont\/Montverde, FL. The Best Motocross\/UTV \u0026amp; ATV Shop in Central Florida. Stop by our local store in Montverde, FL or enjoy lightning-fast shipping across the USA.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"WOSSNER","offers":[{"title":"Default Title","offer_id":44496006447187,"sku":"4086DA","price":244.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/4668211.png?v=1776230713","url":"https:\/\/motohousemx.com\/products\/wossner-4086da-piston-kit-2023-2026-yamaha-yz450f-wr450f-yz450fx-motocross","provider":"Moto-House MX","version":"1.0","type":"link"}