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  • This Kit Includes a Single Piston.
  • Dedicated Forging.
  • Superior Strength/weight Ratio Utilizing Aerospace Alloy.
  • Race Proven Designs.
  • Chosen by Top Race Teams, in All Forms of Racing
  • CNC MacHined Cam Shape & Profile for Peak HP and Service Life.
  • Precision MacHined Highest Quality Materials for Strength and Reduced Friction.
  • Includes High-Performance Ring Set.
  • Extended Life and Sustained Power.
  • Includes Highest Quality Alloy Wrist Pin.
  • Includes Circlip.
  • Consistently True and Durable.
  • Bore Size (Mm): 48.5


  • Please Note: The Image Displayed Is Representative of the Piston, However Circlips, Wristpins & Rings, as Well as the Specific Type of Piston Will Vary Based on Your Model.
    • " ], "Product_site_launch_date": [ "2010-08-03T20:41:42.369Z" ], "Publisher": [ "Wiseco", "Wiseco Piston" ], "Rank": [ "3651468", "4473503", "4618", "4650210", "5159", "5811062", "6007", "8229" ], "Registration_status": [ "fifra_not_considered_pesticide", "not_capable_emitting_rf_energy" ], "Regulatory_organization_name": [ "California Environmental Protection Agency - Air Resources Board", "California Environmental Protection Agency - Air Resources Board(CARB)" ], "ReleaseDate": [ "2012-02-13" ], "Size": [ "48.50 mm" ], "Street_date": [ "2012-02-13T00:00:01Z" ], "StrippedMpns": [ "649M04850" ], "Studio": [ "Wiseco", "Wiseco Piston" ], "Title": [ "Wiseco 649M04850 48.50 mm 2-Stroke Off-Road Piston", "Wiseco Piston 48.5MM for Yamaha PW-80 Thru 06" ], "TradeInEligible": [ "False" ], "Type": [ "Ounce", "ean" ], "URL": [ "http://ecx.images-amazon.com/images/I/41-8Io4bJ2L._SL75_.jpg", "https://m.media-amazon.com/images/I/41-8Io4bJ2L._SL75_.jpg", 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life" ] }, { "asin": "B006B1Y16Q", "title": "WISECO PISTON M04850 649M04850", "brand": "Wiseco", "image": "https://m.media-amazon.com/images/I/41DcSNxKx6L._SL75_.jpg", "url": "http://www.amazon.com/gp/offer-listing/B006B1Y16Q%3FSubscriptionId%3DAKIAIHZ4E5VH567UHIVA%26tag%3Dmgo-123%26linkCode%3Dxm2%26camp%3D2025%26creative%3D386001%26creativeASIN%3DB006B1Y16Q", "description": "
  • This Kit Includes a Single Piston.
  • Dedicated Forging.
  • Superior Strength/weight Ratio Utilizing Aerospace Alloy.
  • Race Proven Designs.
  • Chosen by Top Race Teams, in All Forms of Racing
  • CNC MacHined Cam Shape & Profile for Peak HP and Service Life.
  • Precision MacHined Highest Quality Materials for Strength and Reduced Friction.
  • Includes High-Performance Ring Set.
  • Extended Life and Sustained Power.
  • Includes Highest Quality Alloy Wrist Pin.
  • Includes Circlip.
  • Consistently True and Durable.
  • Bore Size (Mm): 48.5


  • Please Note: The Image Displayed Is Representative of the Piston, However Circlips, Wristpins & Rings, as Well as the Specific Type of Piston Will Vary Based on Your Model.
    • " } ] }, "metadata": { "generated_date": "2025-12-06", "last_updated": "2025-12-06", "data_sources": [ "Summit Racing", "allterraindepot.com", "denniskirk.com", "goturbo.net", "lmperformance.com", "motomentum.com", "socalpowersports.com", "vividracing.com", "Amazon" ], "completeness": 1.0, "version": "1.0" } } }