Please note the 51, 55, and 350 models came in multiple bore sizes and this only fits the 45mm bore versions.
The kit includes 45mm POP UP piston, upgraded Caber piston ring, wrist pin, and circlips.
Do you want to add power to your saw without spending money on expensive porting? This POP UP extra compression piston from Hyway will generally add at least 10 psi compression over the stock design piston. More compression equals more power.
1 year warranty against defects on this Hyway piston kit.
Wolf Creek Saw Shop is a proud U.S. seller, we ship within 1 day of receiving payment, and you will get your parts quickly!