PROX 77mm PISTON KIT A, YAMAHA WR250F 18-19, YZ250F 16-18, YZ250FX 17-19

ProX Piston Kit 13.5:1 (76.95mm)

Yamaha YZ 250 F 2016-2018

Yamaha WR 250 F 2018

Yamaha YZ 250 FX 2017-2019

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.

Replacement ring set: 02.2417

PROX 01.2417.A

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.