Piston 4-STK KIT 86.00mm Bore.

Ready to install, ProX Piston Kits are supplied complete with piston rings, wrist pin, and circlips. - ProX pistons are precision machined on the latest, state of the art CNC equipment and use the same low-expansion, low-friction piston alloy all major Japanese engine manufacturers use. - Uses an OEM style tin coating to assist the break-in process when you first start your machine.

Honda TRX400EX Sportrax (1999-2008),
Honda XR400 (1996-2004),
Honda TRX400X Sportrax (2009-2014),

PROX 01.1495.100