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High-Performance Piston Kit

  • 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
  • Features forged pistons, rings, wrist pins, and circlips
  • 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
  • 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
  • Cylinder sleeves must be purchased separately.
  • Service intervals may be increased with Racer's Choice pistons over conventional Wiseco pistons, and are for expert racers and tuners only.
Brand
WISECO
Vendor Part Number
W804M06640B
Bore - Oversize
Standard
Bore - Oversize Metric
Standard
Bore Size
66,40 mm
Compression Ratio
Stock
Compression Ratio Imperial
Stock
Displacement
249 cc
Engine Type
2-Stroke
Model
Pro-Lite
Piston Diameter
66,36 mm
Piston Diameter Metric
66.36 mm
Piston Material
Forged, 4032 Aluminum Alloy
Product Name
Piston Kit
Skirt Coating
Non-Coated
Stroke Length
72,00 mm
Units
Kit

WISECO

WISECO PISTON YAMAHA

804M06640 / W804M06640B

190,82EUR
*incl. 19% VAT

3 In Stock
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US backorder items cannot be cancelled. See our Backorder Policy for more information.

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