
VERTEX Cast Piston designed for the restoration of small-displacement urban engines. This aluminum piston, manufacturer reference 21659020, is aimed at scooter riders and technicians looking for a replacement part that meets the oversized specifications for Vespa 125 engines.
Part suitable for engine repair and refurbishment operations: reboring and piston replacement. Fits models listed as application references (Vespa Primavera ET3 125 and Vespa ET3 125 from the indicated years). Professional installation is recommended to ensure correct clearances and tolerances.
Installation Advice: check the condition of the cylinder, rings, and piston pins during replacement. Keep the manufacturer reference 21659020 to ensure proper compatibility with your model.