Features:

• All piston skirts are coated with a high-tech Molybdenum Disulfide coating for faster break-in time and increased piston life
• Forged pistons are forged from 2618 aluminum for superior strength and durability.
• Forged High Compression pistons improve power and torque across entire rpm range.
• All pistons are heat treated with a T-5 hardening and tempering cycle.
• All rings are OEM replacements.
• Top end piston kit includes piston, rings, pins, circlips, top end gaskets, and wrist pin bearing or cam chain where applicable.

Fitment
Yamaha YFZ450 2004
Yamaha YFZ450 2005
Yamaha YFZ450 2006
Yamaha YFZ450 2007
Yamaha YFZ450 2008
Yamaha YFZ450 2009
Yamaha YFZ450 2012
Yamaha YFZ450 2013