The kit for the cover of the centrifugal filter, code P51715-01, includes the components required to service and restore the protective housing of the MAN L21/31 engine’s centrifugal oil filtration system. The centrifugal filter is vital for removing fine contaminants from lubricating oil, ensuring cleaner circulation and reducing wear on internal components. Maintaining the filter cover ensures proper sealing, safe operation at high rotation speeds, and protection of the filtration system from external contaminants. By ensuring the filter performs at peak efficiency, this kit supports longer oil life, improved lubrication quality, and greater overall engine reliability.