Forged from high-silicon aluminum alloy for maximum strength and dependability
Contain all necessary components for overboring or rebuilding your top end
Feature forged pistons, rings, wrist pins, circlips, and top end gasket
Cylinder sleeves must be purchased separately
Have additional features over standard Pro-Lite parts
Each piston is E-coated on the crown, ring grooves, and pin bore for maximum wear resistance and protection from micro-welding, galling, and detonation
Generally have less machining on the outside, which helps seal up the bore for increased compression
Additionally, boost ports are removed for a more predictable powerband and increased pull on the top end

More Information
Manufacturer SKU	PK1157
Manufacturer:	Wiseco
Department	PAM-PU
HTP Sale	No
Show Stock	Yes
Riding Style	Off-Road
California Restricted Product:	No

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Year	Make	Model
1981-2020	Yamaha	PW 50

Piston Kit with Gaskets PK1157