ATHENA offers you this replacement piston for the top engine ATHENA Big Bore P400485100012 mounted on YAMAHA YZF and WF 250cc from 2001 to 2012. This piston ATHENA high compression will allow you to bring your cylinder back to original performance. Ideal in case of wear it is available in dimension A in 82,95mm and B in 82,96mm thus allowing to palliate the loss of compression of the friction of the piston in the cylinder. This piston is delivered with its rings, pin and clips in C. We strongly advise you to mount the piston with new seals to avoid any compression loss. We recommend changing the piston every 10,000 km or 35 hours maximum!

Fits on:

YAMAHA WR250F 2001

YAMAHA WR250F 2002

YAMAHA WR250F 2003

YAMAHA WR250F 2004

YAMAHA WR250F 2005

YAMAHA WR250F 2006

YAMAHA WR250F 2007

YAMAHA WR250F 2008

YAMAHA WR250F 2009

YAMAHA WR250F 2010

YAMAHA WR250F 2011

YAMAHA WR250F 2012

YAMAHA WR250F 2013

YAMAHA WR250F 2014

YAMAHA YZ250F 2001

YAMAHA YZ250F 2002

YAMAHA YZ250F 2003

YAMAHA YZ250F 2004

YAMAHA YZ250F 2005

YAMAHA YZ250F 2006

YAMAHA YZ250F 2007

YAMAHA YZ250F 2008

YAMAHA YZ250F 2009