Wiseco 98.00 mm Forged Piston Kit – Yamaha YFZ450 / YFZ450R/X (2004–2024)

🛠️ Description
Boost your Yamaha YFZ450’s performance with the Wiseco 98.00 mm Forged Piston Kit. Designed with dedicated forgings for maximum strength-to-weight ratio, this kit provides exceptional durability and reliable power. The ArmorGlide® skirt coating reduces friction, extends life, and makes it ideal for high-performance ATV riding. Requires a big bore cylinder for installation.

✅ What’s Included

• 1x Forged Piston (98.00 mm)

• 1x Ring Set (#3858XS)

• 1x Wrist Pin (#S641)

• 1x Circlip Set (#CW20)

📦 Fitment

• 2009–2024 Yamaha YFZ450R

• 2009–2024 Yamaha YFZ450R SE

• 2010–2011 Yamaha YFZ450X

• 2010 Yamaha YFZ450X Bill Balance

• 2011 Yamaha YFZ450X SE

• 2004–2013 Yamaha YFZ450

🛡️ Warranty Info
Wiseco pistons are covered by the manufacturer’s limited warranty against material and workmanship defects. Improper installation, tuning errors, or use in extreme racing conditions are not covered. Professional installation is recommended.

🔑 Key Features

• Forged 2618 aluminum piston, engineered for 4-stroke ATVs

• ArmorGlide® skirt coating for reduced friction and longer life

• Dedicated forgings for optimized strength-to-weight ratio

• Designed for big bore conversions (oversize +3.00 mm)

• Compression ratios: 11.4:1 or 12.5:1 depending on configuration

• Displacement range: 467 cc / 478 cc