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The Mahle low-tension moly ring set for a 4.125" bore is a piston ring kit specified for engines with that bore dimension. Offered by Mahle OE, this moly ring set is intended as a direct replacement during engine rebuilds or ring service where a low-tension molybdenum-faced ring pack is required to match a 4.125-inch cylinder bore.
Mahle Rings Claimer Performance Low Tension 4.125 Bore Moly Ring Set
