{"product_id":"wiseco-885m04350-piston-kit-yamaha-yz65-moto-house-mx","title":"Wiseco Forged Piston Kit 885M04350 — Yamaha YZ65 43.50mm 2018-2025","description":"\u003cdiv\u003e\n  \u003ch1\u003e\u003cstrong\u003eWiseco Forged Piston Kit 885M04350 — Yamaha YZ65 43.50mm 2018-2025\u003c\/strong\u003e\u003c\/h1\u003e\n\n  \u003ch2\u003eProduct Description\u003c\/h2\u003e\n  \u003cp\u003eThe \u003cstrong\u003eWiseco Forged Piston Kit 885M04350\u003c\/strong\u003e is the premier choice for riders looking to restore factory-level performance and reliability to their \u003cstrong\u003eYamaha YZ65\u003c\/strong\u003e. Forged from a high-silicon 4032 aluminum alloy, this piston is engineered for maximum strength and dependability, even under the intense heat and high-RPM demands of competitive motocross racing. Wiseco’s commitment to precision manufacturing ensures that every piston provides an optimized fit, resulting in improved ring sealing and enhanced power delivery.\u003c\/p\u003e\n  \u003cp\u003eThis comprehensive kit includes everything you need for a professional-grade top-end rebuild: the forged piston, high-performance rings, circlips, and the wrist pin. By choosing Wiseco’s \u003cstrong\u003eForged Series\u003c\/strong\u003e, you are investing in decades of engineering expertise, ensuring your YZ65 maintains its competitive edge with a piston that resists thermal expansion and mechanical fatigue better than cast alternatives.\u003c\/p\u003e\n\n  \u003ch3\u003eTop Features: Wiseco Forged Piston Kit\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eForged from high-silicon 4032 aluminum alloy for superior strength and weight reduction.\u003c\/li\u003e\n    \u003cli\u003eEngineered for maximum dependability in high-RPM, 2-stroke racing applications.\u003c\/li\u003e\n    \u003cli\u003eOptimized ring-to-groove geometry ensures an excellent seal and consistent compression.\u003c\/li\u003e\n    \u003cli\u003eComprehensive kit includes piston, high-performance rings, circlips, and wrist pin.\u003c\/li\u003e\n    \u003cli\u003eProven performance for both trail riding and professional-level motocross racing.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n  \u003ch2\u003eFitment List\u003c\/h2\u003e\n  \u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"background-color: #f7f7f7;\"\u003e\n        \u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n        \u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n        \u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2018-2025\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYamaha\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYZ65\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n  \u003cp\u003e\u003cstrong\u003eQ: Does this kit fit a bored-out cylinder?\u003c\/strong\u003e\u003cbr\u003e\n  A: No, this is a standard 43.50mm bore piston. If your cylinder has been damaged or bored out, you will need to verify if this size is still appropriate or if a larger over-bore piston is required.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eQ: Do I need to break in the new piston?\u003c\/strong\u003e\u003cbr\u003e\n  A: Yes, proper break-in is essential. We recommend a few short, heat-cycling sessions where you gradually increase the engine load, avoiding prolonged wide-open throttle, to allow the rings to seat properly against the cylinder wall.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e Always measure your cylinder end-gap after installing the rings on the new piston. Ensuring your ring end-gap falls within the manufacturer's specified range is the single most important step in preventing premature seizure and ensuring maximum engine longevity.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\n  o    \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz65\"\u003eYamaha YZ65 Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003e\n  o    \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003ePremium Engine Assembly Lubricants\u003c\/a\u003e\u003cbr\u003e\n  o    \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-motorcycle-tools\"\u003eEssential Engine Rebuild Tools\u003c\/a\u003e\u003c\/p\u003e\n\n  \u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n  \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\/\",\n    \"@type\": \"Product\",\n    \"name\": \"Wiseco Forged Piston Kit 885M04350\",\n    \"brand\": {\n      \"@type\": \"Brand\",\n      \"name\": \"Wiseco\"\n    },\n    \"mpn\": \"885M04350\",\n    \"description\": \"High-strength forged piston kit (43.50mm) for Yamaha YZ65, including rings, circlips, and wrist pin.\"\n  }\n  \u003c\/script\u003e\n\u003c\/div\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":21384086782035,"sku":"885M04350","price":115.28,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/wiseco-pro-lite-performance-piston-885m04350-yamaha-yz65-2019-2024-646069.jpg?v=1738050273","url":"https:\/\/motohousemx.com\/products\/wiseco-885m04350-piston-kit-yamaha-yz65-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}