PISTON KIT 01-04 YZF250 77.00, 8572DA WOSSNER 2-RING, 5NL-11631-10-00

Piston kit 77.00mm BORE 76.96 8572DA WOSSNER (STD)

Yamaha
YZF250 2001 - 2004,
WR250F 2001 - 2004,
(2 Ring) Pro series

• Wossner forged pistons are superior in strength and design.
• Engineered to provide the best possible path for combustion chamber heat transfer to cylinder walls.
• Elliptically designed to provide a more uniform bearing surface under piston heat expansion, eliminating localized pressure and distributing thrust loads more evenly, thereby preventing piston collapse.
• Made in Germany.

56-W022+00A.WO (oro2u.com)
Lock P/N CW16
Pin P/N WP059
Ring Set P/N 770XAS
Rod P/N P4006 / P4005

Display (cm3) 249
Hub stroke (mm) 53.60
Clearance (mm) 0.04
Wossner compression Ratio: 12.80:1
OEM Compression ratio: 12.50:1
Dome volume (cm3) -4.80
Compression height (mm) 20.50

Cross reference numbers ONLY.
5NL-11631-10-00