Wiseco/Tusk Top End Kit 66.4mm For Yamaha Yz250 250X '99-26 ProLite Pin Bearing
$180.98
Free shipping included
🔒 You'll be taken to eBay to complete your purchase securely.
Shipping, delivery & returns
Free shipping · USPS (Standard Shipping)
📦 Est. delivery Jun 29, 2026 – Jul 1, 2026
Ships from Homer, New York, US
🌍 Ships to 163 countries
↩️ Returns accepted · 30 calendar day · seller pays return shipping
Seller
About this item
Tusk motorcycle and ATV complete gasket kits are no exception. Tusk complete gasket kits utilize top quality materials for their gaskets, o-rings, and seals. Yamaha YZ 250X 2016-2026. Tusk Complete Gasket Kits are made from the highest quality materials available.
Specifications
| Machine Type | Off-road Motorcycle |
| Custom Bundle | Yes |
| Manufacturer Part Number | 804M06640 & 1032020031 |
| Piston Diameter | 66.4mm |
| Vintage Part | No |
| Modified Item | No |
| Placement on Vehicle | Left, Right, Front |
| California Prop 65 Warning | Cancer, Birth defects, and Reproductive harm |
Show 10 more specs ▾
| Brand | Wiseco |
| Engine Type | 2-Stroke |
| Wiseco Piston Kit | Standard (Stock) Bore Size Yz250 250X 1999-2020 |
| Type | Piston & Top End Gasket |
| Item Condition | NEW |
| Part Brand | 804M06640 |
| Manufacturer Warranty | Unspecified Length |
| Surface Finish | Aluminum |
| Country of Origin | United States |
| Performance Part | Yes |
Item description from seller
Wiseco ProLite Piston Kit Standard/Stock Bore 66.40mm- 804M06640 With Pin Bearing Fits:…Read more ▾
Wiseco ProLite Piston Kit Standard/Stock Bore 66.40mm- 804M06640 With Pin Bearing Fits:
Yamaha YZ 250 1999-2026
Yamaha YZ 250X 2016-2026
• Durability, longevity and increased horsepower.
• Innovative high silicone forging and piston skirt provide maximum horsepower and torque.
• Lightweight wrist pins enable faster revs and quicker throttle response.
• Aerospace quality aluminum alloy.
• CNC Machined for high precision and tight tolerances.
• Moly coated skirts for reduced friction, better breakin and longevity
(1) 66.4mm piston
(2) 2614CD rings
(2) CW18 circlips
(1) S508 wrist pin
(1) B1003 pin bearing
Tusk produces some of the best motorcycle and ATV parts and accessories in the industry. Tusk motorcycle and ATV complete gasket kits are no exception. Tusk complete gasket kits utilize top quality materials for their gaskets, o-rings, and seals.
• Tusk Complete Gasket Kits are made from the highest quality materials available.
• Kits come complete with all necessary gaskets to completely rebuild the top and bottom end on your motorcycle or ATV.
Secure checkout
via eBay
Free returns
30 calendar day
Free shipping
USPS