Wiseco 471M06750 Piston Kit Oversize for Yamaha - 67.5mm 2-Stroke 0.060 175cc

The Wiseco 471M06750 is a high-performance forged piston kit built for Yamaha 175cc 2-stroke engines. This kit features a 67.5mm bore diameter, representing a +0.060" oversize specification designed for engines that have been bored beyond standard dimensions. Forged in the USA from aerospace-grade aluminum alloy, this piston delivers the reliability and performance demanded by serious riders.

Key Features:

• Forged aluminum construction — high-silicon aerospace alloy delivers superior strength-to-weight ratio versus cast alternatives
• 67.5mm bore diameter — +0.060" oversize; requires matching cylinder bore
• Innovative skirt design — optimized forging geometry maximizes horsepower and torque output
• Complete kit — includes piston, rings, wrist pin, and circlips
• Precision crafted and forged in the USA — Wiseco is the only U.S. aftermarket piston manufacturer that exclusively uses the forging process
• Race-proven performance — designs vetted by top race teams across Supercross, Motocross, and GNCC competition

Wiseco part number 471M06750 corresponds to Wiseco kit code 2658CD. Note: This oversize piston requires the cylinder to be properly bored and honed to the corresponding oversize specification before installation.