Forged from high-silicon aluminum alloy for maximum strength and dependability
Wiseco offers a complete range of popular piston models and years for both trail and racing applications
Durability, longevity and increased horsepower
Innovative forging design and piston skirt provide maximum horsepower and torque
Feature forged pistons, rings, wrist pins, and circlips
Cylinder sleeves must be purchased separately
Now you can own the same race parts as all the top race teams
These high-tech piston designs offer maximum compression ratios, ultra-stiff strutted forgings, and titanium nitride-coated rings, which all add up to more power that is sustained longer
When blow-by starts to increase on other pistons and power starts to fade, Wiseco Race Series parts continue sealing and performing
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
GP Series parts 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
Service intervals may be increased with Racer's Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only.

More Information
Manufacturer SKU	804M06640
Manufacturer:	Wiseco
Department	PAM-PU
HTP Sale	No
Show Stock	Yes
Riding Style	Off-Road
California Restricted Product:	No

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You're reviewing:Piston - Standard - Yamaha YZ 250/X 804M06640

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Year	Make	Model
1999-2022	Yamaha	YZ 250
2016-2022	Yamaha	YZ 250 X

Piston - Standard - Yamaha YZ 250/X 804M06640