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The Mahle drop-in piston ring set for a 4.155 in bore includes 1.5 mm top and second rings and a 3.0 mm oil ring. Supplied for rebuilds and piston replacement, these direct-fit rings restore cylinder sealing and oil control when matched to a 4.155" bore. Confirm the specified ring thicknesses and bore size to achieve correct ring gap and a straightforward installation.
Mahle MS 4.155in 1.5mm 1.5mm 3.0mm Drop-In Rings
