Wiseco 478M08750 Pro-Lite Forged Piston Kit Bore - 2-Stroke 87.50mm

The Wiseco 478M08750 is a high-performance forged piston kit with an 87.50mm bore designed for 2-stroke off-road engines. Built from 4032 high-silicon aluminum alloy, this piston delivers superior strength, reduced weight, improved heat transfer, and extended service life compared to cast alternatives.

Key Features:

• Forged 4032 aluminum construction — high-silicon, low-expansion alloy optimizes tensile strength and long-term durability
• CNC diamond-turned finish — precision machining ensures consistent sizing with zero variation across the piston skirt
• Compatible with all cylinder bore types — suitable for cast iron, chrome, Nikasil, and boron composite cylinder compositions
• Oversize fitment — 87.50mm bore supports cylinder rebuilds and extends the life of worn cast iron lined cylinders
• Engineered and manufactured in the USA — forged and machined at Wiseco's facility in Mentor, OH
• Dedicated 2-stroke forging — designed specifically for 2-stroke powersports engines with an optimized strength-to-weight ratio

Kit Includes:

• Forged piston
• Piston ring(s)
• Wrist pin
• Circlips

With over 80 years of piston engineering experience, Wiseco's Classic Forged piston kits are a trusted choice for both competitive racers and recreational riders seeking reliable, high-performance engine components.