
WISECO Forged Piston – Manufacturer Ref: W4713M09000
Forged aluminum piston designed for 400 cc engines, offered in standard compression version (12.2:1). Machined with an oversize letter A, its nominal diameter is indicated as Ø 89.94 mm (commercial reference Ø 90.000 mm). This piston is delivered in a kit with rings, ready for the refurbishment of your cylinder.
Designed for the Quad, Cross, and Roadster environments, this piston is aimed at enthusiasts looking for an alternative OEM part for their engine restoration. Check the bore and tolerances before installation and follow the manufacturer's recommendations for break-in and piston-cylinder clearance.
Common compatibilities: