Compatible with multiple models including G621 G621avs G620 G620pu 6200 62cc chainsaws broad usage range for various engine replacements Complete piston set includes piston ring pin and clip for straightforward installation and engine performance -engineered 47.5mm piston designed to match specifications for consistent fit and function construction supports efficient power transfer and long-term under regular chainsaw Ideal replacement part for restoring compression and optimizing engine efficiency in XCAN and compatible chainsaw models, Manufacturer: EirenePer