Genuine Suzuki standard-size (STD) piston for 54.0mm bore engines, intended for top-end service and engine rebuilds where the cylinder remains at standard bore. Features
Standard (STD) size piston for a 54.0mm bore
Direct replacement-style piston to restore proper compression and performance
Ideal for top-end refresh after wear, damage, or seizure repair (when cylinder measures within spec)
Use with the correct matching rings, pin, and clips for your application (often sold separately)
Fitment varies by model/year—confirm by parts fiche/VIN before ordering