PISTON KIT 02-25 YZ250 66.40, WISECO 808M06640 YAMAHA, Racers Choice, 250cc 1-Ring
Wiseco GP-Style Piston Assembly 808M06640. Designed to withstand the demands of the Grand Prix circuit. Features thicker domes than the standard Pro-Lite, pinned on centerline, no intake window. No engine modification required. Electra coated, single ring. Top-End bearing available separately part no. B1003. Included Items: One 66.4mm piston, one 2614CS ring, two CW18 circlips, one S508 wrist pin. Sold by application and bore size. Cross reference numbers: 1P8-11631-00-A0, 1P8-11631-00-B0, 1P8-11631-00-C0. 250cc 1-Ring piston kit.
- SKU
- 56-W742.WI.RC
- Brand
- Wiseco
- Availability
- In Stock (1)
FULL DESCRIPTION
Wiseco GP-Style Piston Assembly - 808M06640
Engineered for the rigorous demands of Grand Prix racing, this Wiseco piston assembly offers superior performance and durability. Its design focuses on enhancing power output and withstanding extreme operating conditions commonly found in competitive motorsport.
Key Features:
- GP-Style Piston Assembly designed for high-performance applications.
- Thicker dome construction compared to standard Pro-Lite pistons for increased strength.
- Centerline pinning for optimized performance.
- No intake window for enhanced compression and durability.
- Electra coating for improved wear resistance and reduced friction.
- Single-ring design for reduced drag and increased responsiveness.
- No engine modification is required for installation.
Included Components:
- One 66.4mm Piston
- One 2614CS Ring
- Two CW18 Circlips
- One S508 Wrist Pin
Important Note: This piston kit is sold by application and bore size. Please ensure you are ordering the correct standard or oversized bore diameter to match your engine's requirements. For assistance, please contact Technical Service.


