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Mahle file-fit top ring intended for severe-duty use, sized for a 4.530 in bore with a 1.5mm GNS top ring and supplied to +0.005 tolerance. Offered as a precision file-fit component for engine rebuilds, it is intended to be fitted to the cylinder for correct sealing and sizing, providing a durable top-ring option for demanding applications.
Mahle MS 4.530in 1.5mm GNS Severe Duty Top Ring
