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Mahle 3/16" support rail for 4.310–4.350 bore applications. This precision support rail is provided to assist piston ring installation and alignment, offering a consistent 3/16" support profile across the specified bore range. Supplied as a service‑grade replacement, it helps technicians achieve repeatable ring seating and positioning during engine assembly and repair tasks.
Mahle MS 4.310-4.350 3/16in Support Rail
