WSM 50-231-04K Piston Kit 0.25mm Oversize for Honda 420

The WSM 50-231-04K is a high-quality oversize piston kit designed for Honda 420 engines. This 0.25mm oversize kit brings the bore to 86.75mm, making it ideal for cylinders that have been slightly overbored or worn beyond standard tolerances.

Key Features:

• 0.25mm oversize (86.75mm bore diameter)
• Competitively priced forged piston construction for superior strength and durability
• MOS2 coating draws heat through piston walls for enhanced cooling and high-performance operation
• Quality and construction that meets or exceeds OEM specifications
• Features improved E-clip design for reliable retention
• Complete kit includes piston, rings, wrist pin, and clips

This WSM piston kit is manufactured from high-grade materials and is engineered to restore compression and power to your Honda 420 engine. The advanced MOS2 coating provides superior heat absorption and dissipation, helping extend component life while maintaining peak performance. Cross-references to OEM part number 13102-HP5-600.