Piston Kit 03-04 YZF450 95 Hc, Forged Wossner 8570DA, 5TJ-11631-00-00

Piston kit 95mm Bore 94.96 Wossner 8570DA (STD)

YAMAHA
YZ450F 2003 - 2004,
WR450F 2003- 2004,
(HIGH COMPRESSION)

• 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

Part no 56-W4785.A.WO.HC
High compression Piston kit (8570DA) 94.96mm Std size (95mm)
Clip Part no CW18
Pin Part No WP053
Ring Part no 950ADS-2

Display (cm3) 449
Hub stroke (mm) 63.40
Clearance (mm) 0.04
Wossner compression Ratio: OEM
OEM Compression ratio: 12.50:1
Dome volume (cm3) -7.80
Compression height (mm) 23.50
Theorectical weight (G)

Cross reference numbers ONLY.
5TJ-11631-00-00