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Mahle piston rings for Cummins B 5.9L (+040) diesel applications, supplied per one cylinder and specified for a 4.055" bore. These rings are listed for the Cummins B 5.9L (+040) oversize service and intended for engine rebuilds requiring that bore dimension. The copy focuses on correct sizing and fitment for the named Cummins application without asserting materials or performance beyond the source.
Mahle MS Cummins B 5.9L (+040) Diesel Ring 1 cyl
