Top End Kit Cast 66.34/Std Yam

Features:

• New T-box forgings and DLC coated wrist pins on forged pistons with highest compression ratios for increased strength and performance.


• All piston skirts are coated with a high-tech Molybdenum Disulfide coating for faster break-in time and increased piston life


• Cast piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston.


• Forged pistons are forged from 2618 aluminum for superior strength and durability.


• Forged High Compression pistons improve power and torque across entire rpm range.


• Forged Replica pistons are forged OE replacements


• All pistons are heat treated with a T-5 hardening and tempering cycle.


• Replica KTM 2-stroke pistons are factory supplied to KTM


• 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 YZ250 1999
Yamaha YZ250 2000
Yamaha YZ250 2001
Yamaha YZ250 2002
Yamaha YZ250 2003
Yamaha YZ250 2004
Yamaha YZ250 2005
Yamaha YZ250 2006
Yamaha YZ250 2007
Yamaha YZ250 2008
Yamaha YZ250 2009
Yamaha YZ250 2010
Yamaha YZ250 2011
Yamaha YZ250 2012
Yamaha YZ250 2013
Yamaha YZ250 2014
Yamaha YZ250 2015
Yamaha YZ250 2016
Yamaha YZ250 2017
Yamaha YZ250 2018
Yamaha YZ250 2019
Yamaha YZ250 2020
Yamaha YZ250 2021
Yamaha YZ250 2022
Yamaha YZ250 2023
Yamaha YZ250 2024
Yamaha YZ250X 2016
Yamaha YZ250X 2017
Yamaha YZ250X 2018
Yamaha YZ250X 2019
Yamaha YZ250X 2020
Yamaha YZ250X 2021
Yamaha YZ250X 2022
Yamaha YZ250X 2023
Yamaha YZ250X 2024