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The Mahle drop-in piston ring set for a 4.125 in bore provides 1.0 mm top and second rings and a 2.0 mm oil ring. Supplied as direct-fit drop-in rings, they are intended to restore sealing and oil control during rebuilds or piston replacement. Use when matching a 4.125" bore and the specified thinner ring package to maintain correct ring gaps and ensure proper installation.
Mahle MS 4.125in 1.0mm 1.0mm 2.0mm Drop In Rings
