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This CP piston is specified for the Cummins 5.9L 12V application with a 4.020" bore and is offered as a single replacement piston for engine rebuilds. It provides the correct bore size needed for a precise service fit during top-end repairs or full rebuild projects. Sold individually to match engines requiring the 4.020" bore dimension.
CP Piston Cummins 5.9L 12V - Bore 4.020 - Single
