VERTEX PISTON fits for Yamaha 4T WRF 426 01-02 PRO

Four-stroke engines have much higher cylinder pressures when compared to twostrokes
and are generally manufactured from forgings. To handle the internal
pressures of a four-stroke engine, Vertex’s four-stroke pistons are forged
from the highest quality 2618 aluminum alloy for superior strength and durability.
Vertex uses unique piston profiles and compression ratios,
offered in A, B, C and D sizes, to maximize power and performance while
reducing blow-by and oil consumption.

Vertex Piston delivery with: Kits include piston, rings, wrist pin and circlips!

PRO=Forged piston
HC=Forged piston developed with Vertex know-how and high compression
HCR= Forged piston developed with Vertex know-how and high compression-Racing

Select your dimension!

A=94.93
B=94.94

reference picture!