{"product_id":"wossner-8075d050-piston-kit-yamaha-yfz350-banshee-rz350-rd350-rd400-0-50mm","title":"Wossner 8075D050 Piston Kit - Yamaha YFZ350 Banshee RZ350 RD350 RD400 +0.50mm","description":"\u003ch3\u003eWossner 8075D050 Premium Forged 2-Stroke Piston Kit - +0.50mm Oversize\u003c\/h3\u003e\n\n\u003cp\u003eWhen your classic Yamaha twin or Banshee ATV requires a cylinder bore and refresh, the Wossner 8075D050 Piston Kit provides the Factory Quality precision needed to restore peak performance. This +0.50mm oversize kit is engineered specifically for cylinders being bored to 64.50mm, ensuring perfect clearances and renewed compression. At Moto-House MX, we provide the high-performance forged components required to keep these legendary 2-stroke engines screaming.\u003c\/p\u003e\n\n\u003cp\u003eForged from aerospace-grade aluminum alloy, this piston offers superior structural integrity and heat resistance compared to standard cast pistons—a must for high-performance Banshee builds and RD street bikes. The permanent skirt coating significantly reduces internal friction and piston rock, resulting in a quieter engine and extended service life. With optimized machining for lightness and strength, the 8075D050 is designed to handle the rapid-fire RPMs of Yamaha’s most famous 2-stroke twins.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: Wossner 8075D050 Piston Kit\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cb\u003e+0.50mm Oversize (64.44mm Piston):\u003c\/b\u003e Precision-engineered for 64.50mm bores to restore worn cylinders.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eAerospace Forged Alloy:\u003c\/b\u003e Premium aluminum construction provides maximum durability for street and off-road racing.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003ePermanent Skirt Coating:\u003c\/b\u003e Minimizes friction and engine noise for smoother operation and efficient break-in.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eDual-Ring Design:\u003c\/b\u003e Optimized for a reliable combustion seal and consistent power delivery across the powerband.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eComplete Assembly:\u003c\/b\u003e Kit includes the forged piston, high-performance rings, wrist pin, and clips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e When boring your cylinders for this +0.50mm kit, ensure your machinist has the pistons in hand to verify the final hone to the exact 64.50mm bore specification. For Banshee and RD350 twins, it is highly recommended to replace pistons in pairs to ensure balanced engine performance.\u003c\/p\u003e\n\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" style=\"width: 100%; border-collapse: collapse;\"\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; Notes\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e1987-2006\u003c\/td\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003eYFZ350 Banshee (ATV)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e1973-1975, 1984-1985\u003c\/td\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003eRD350 \/ RZ350 (Street)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e1981-1983\u003c\/td\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003eRD 350 LC (Liquid Cooled)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e1976-1979\u003c\/td\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003eRD400 (62.00mm Stroke)\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\u003cb\u003eQ: Is this kit for one cylinder or two?\u003c\/b\u003e\u003cbr\u003e\nA: This kit includes the components for one (1) cylinder. For twin-cylinder engines like the Banshee or RD350, you will need to order two kits.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eQ: What is the benefit of the forged material over cast?\u003c\/b\u003e\u003cbr\u003e\nA: Forged pistons are much denser and stronger than cast pistons, making them far more resistant to the high heat and detonation risks common in modified 2-stroke engines.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eQ: Can I use this without boring my cylinder?\u003c\/b\u003e\u003cbr\u003e\nA: No, this is an oversize piston (+0.50mm). It requires your cylinder to be bored and honed to 64.50mm to fit correctly.\u003c\/p\u003e\n\n\u003ch3\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cb\u003eComplete Gasket Set:\u003c\/b\u003e Ensure a total seal during your Yamaha twin-engine rebuild.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eMotorex Cross Power 2T Oil:\u003c\/b\u003e Premium synthetic protection for high-performance forged pistons.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eRestore your Yamaha’s legendary 2-stroke snap today. Buy now at Moto-House MX!\u003c\/p\u003e\n\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\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Wossner 8075D050 Piston Kit\",\n  \"image\": [],\n  \"description\": \"Wossner 8075D050 Oversize (+0.50mm) Forged Piston Kit for Yamaha YFZ350 Banshee, RD350, and RD400. Features permanent low-friction skirt coating.\",\n  \"sku\": \"8075D050\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Wossner\"\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/motohousemx.com\/products\/wossner-8075d050-piston-kit\",\n    \"priceCurrency\": \"USD\",\n    \"availability\": \"https:\/\/schema.org\/InStock\"\n  }\n}\n\u003c\/script\u003e","brand":"WOSSNER","offers":[{"title":"Default Title","offer_id":44496005398611,"sku":"8075D050","price":122.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/59499.png?v=1776230585","url":"https:\/\/motohousemx.com\/products\/wossner-8075d050-piston-kit-yamaha-yfz350-banshee-rz350-rd350-rd400-0-50mm","provider":"Moto-House MX","version":"1.0","type":"link"}