PISTON KIT 99-25 YZ250 66.40, WISECO 804M06640C PRO-LITE
Wiseco Pro-Lite Piston Assembly 804M06640. Features innovative forging design and piston skirt for maximum horsepower and torque. Lightweight wrist pins enable faster revs and quicker throttle response. Ceramic Composite-Cylinder sleeving or replating required for oversizes. Top-End bearing available part no. B1003. Kit includes: One 66.4mm piston, two 2614CD rings, two CW18 circlips, and one S508 wrist pin. Sold by application and bore size. Pistons, rings, and kits are not indicated as standard or oversize.
- SKU
- 56-W742.C.WI
- Brand
- Wiseco
- Availability
- In Stock (1)
FULL DESCRIPTION
Wiseco Pro-Lite Piston Kit 66.40mm
Enhance your motorcycle's performance with the Wiseco Pro-Lite Piston Kit. Engineered for durability and increased horsepower, this kit features an innovative forging design and piston skirt technology to maximize power output and torque.
The lightweight wrist pins contribute to faster revving and quicker throttle response, giving you a competitive edge. Please note that ceramic composite cylinder sleeving or replating is required for oversized applications.
Key Features:
- Innovative forging design for maximum horsepower and torque
- Advanced piston skirt design
- Lightweight wrist pins for improved revs and throttle response
- Sold by application and bore size; ensure you order the correct standard or oversized bore.
Included Items:
- One 66.4mm piston
- Two 2614CD rings
- Two CW18 circlips
- One S508 wrist pin
A top-end bearing is available separately (part no. B1003).


