ATHENA offers you this replacement piston for the top engine ATHENA Big Bore P400485100029 and P400485100030 mounted on your YAMAHA YZ 125cc. This piston will enable you to restore your cylinder to its original performance. Ideal in case of wear, it's available in A dimension 57.94mm and B dimension 57.95mm, to compensate for the loss of compression due to piston friction in the cylinder. This piston comes complete with ring, pin and C clips. We strongly advise you to fit the piston with new gaskets to avoid any loss of compression. We recommend changing the piston every 10,000 km or 35 hours maximum!

Fits on:

YAMAHA YZ 125 1997

YAMAHA YZ 125 1998

YAMAHA YZ 125 1999

YAMAHA YZ 125 2000

YAMAHA YZ 125 2001

YAMAHA YZ 125 2002

YAMAHA YZ 125 2003

YAMAHA YZ 125 2004

YAMAHA YZ 125 2005

YAMAHA YZ 125 2006

YAMAHA YZ 125 2007

YAMAHA YZ 125 2008

YAMAHA YZ 125 2009

YAMAHA YZ 125 2010

YAMAHA YZ 125 2011

YAMAHA YZ 125 2012

YAMAHA YZ 125 2013

YAMAHA YZ 125 2014

YAMAHA YZ 125 2015

YAMAHA YZ 125 2016

YAMAHA YZ 125 2017

YAMAHA YZ 125 2018

YAMAHA YZ 125 2019

YAMAHA YZ 125 2020

YAMAHA YZ 125 2021