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Pistons - 804M06640 66.40mm Piston

Retail Price: $155.23
You save: $16.28  (10%)
Our Price: $138.95

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Details

  • Model: 804M06640
  • Shipping Weight: 0.8lbs
  • 12 Units in Stock
  • Manufactured by: WISECO

Description

804M06640 66.40mm Piston

  • California Prop 65 Warning: Cancer and Reproductive Harm - https://www.p65warnings.ca.gov/
  • UPC: 193564137043
Piston - Standard - Yamaha YZ 250/X


  • 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.



Wiseco 804M06640 66.40MM PISTON

This part fits the following

TypeMakeModelYearEngineLocationRequiredNotes
MotorcycleYamahaYZ25019992501
MotorcycleYamahaYZ25020002501
MotorcycleYamahaYZ25020012501
MotorcycleYamahaYZ25020022491
MotorcycleYamahaYZ25020032491
MotorcycleYamahaYZ25020042491
MotorcycleYamahaYZ25020052491
MotorcycleYamahaYZ25020062491
MotorcycleYamahaYZ25020072491
MotorcycleYamahaYZ25020082491
MotorcycleYamahaYZ25020092491
MotorcycleYamahaYZ25020102491
MotorcycleYamahaYZ25020112491
MotorcycleYamahaYZ25020122491
MotorcycleYamahaYZ25020132491
MotorcycleYamahaYZ25020142491
MotorcycleYamahaYZ25020152491
MotorcycleYamahaYZ25020162491
MotorcycleYamahaYZ25020172491
MotorcycleYamahaYZ25020182491
MotorcycleYamahaYZ25020192491
MotorcycleYamahaYZ25020202491
MotorcycleYamahaYZ25020212491
MotorcycleYamahaYZ25020222491
MotorcycleYamahaYZ250X20162491
MotorcycleYamahaYZ250X20172491
MotorcycleYamahaYZ250X20182491
MotorcycleYamahaYZ250X20192491
MotorcycleYamahaYZ250X20202491
MotorcycleYamahaYZ250X20212491
MotorcycleYamahaYZ250X20222491


This product was added to our catalog on Friday 09 February, 2024.

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