WISECO

Piston Kit - 66.40 mm - Yamaha YZ250/YZ250X

804M06640

Regular price $154.95

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DESCRIPTION

Fitments

Years	Make	Model
1999 - 2024	Yamaha	YZ 250
2022 - 2023	Yamaha	YZ 250 Monster Energy Racing
2016 - 2024	Yamaha	YZ 250 X

Features

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

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

Specs

Bore Size: 66.40 mm

Piston Material: 4032 Aluminum Alloy

Piston Material: Forged

Riding Style: Off-Road

Engine Type: 2-Stroke

Model: Pro-Lite

Bore - Oversize: Standard

Displacement: 249 cc

Stroke Length: 72,00 mm

Compression Ratio: Stock

Piston Diameter: 66.36 mm

Product Name: Piston Kit

Skirt Coating: Non-Coated

Stroke Length: 72.00 mm

Units: Kit

Approximate Package Weight & Dimensions

Weight: 0.65

Height: 3.5

Length: 4.05

Width: 3.85

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