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The Mahle 2mm oil ring support rail is a precision replacement rail sized for 4.165–4.205 bore diameters and intended to support oil control rings during engine reassembly. Offered as a narrow 2mm support rail, it provides the proper seating surface for the oil ring package in applicable bores. This straightforward service part helps restore correct ring operation during engine rebuilds where the specified diameter and rail thickness are required.
Mahle MS 4.165-4.205 2mm Oil Ring Support Rail
