WSM 50-222-07K Piston Kit 1mm Oversize for Honda ATC200X TRX200

The WSM 50-222-07K is a complete oversize piston kit designed for Honda 200cc ATV engines requiring a +1mm overbore. With a finished bore size of 66mm, this kit is an ideal solution for engine rebuilds where the cylinder has been bored out to correct wear or damage beyond standard dimensions.

Key Features:

• +1mm Oversize (66mm bore) — engineered to match cylinders bored 1mm over standard
• Quality and construction that meets or exceeds OEM specifications
• Features an improved E-clip design for more secure piston pin retention
• Complete kit includes: piston, ring set, wrist pin, and clips — everything needed for a full piston replacement
• Compatible with Honda ATC200X and TRX200 series 4-stroke ATV engines
• OEM cross-reference numbers: 13101-965-000, 13101-HF1-670

WSM piston kits are a trusted choice for powersports engine rebuilds, delivering reliable performance and durability for off-road ATV applications. Whether restoring compression to a worn engine or completing a top-end rebuild, the WSM 50-222-07K provides a precise, drop-in fit for properly bored cylinders.