Description:

NICHE Big Bore Piston Bore Size 89mm; Material: Aluminum Alloy; Surface Coating: None; Type: Flat. Piston Replaces OEM Part Numbers: Honda 13101-KCY-670, 13102-KCY-670, 13103-KCY-670. Compatible with Honda 1996-2004 XR400R, 1999-2008 Sportrax 400 TRX400EX 2x4. Compatible with Honda 2009, 2012-2014 TRX400X. Includes Piston, Piston Ring, and Wristpin.