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The Mahle drop-in piston ring set for a 4.055 in bore features 1.0 mm top and second rings with a 2.0 mm oil ring. These direct-fit drop-in rings are intended to restore compression and oil control in rebuilt engines or during piston replacement. Match the 4.055" bore and listed thicknesses to maintain proper ring gap and achieve a straightforward installation.
Mahle MS 4.055in 1.0mm 1.0mm 2.0mm Drop In Rings
