Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
Mahle 3/16" support rail for 4.250–4.310 bore applications. This precision support rail is intended to assist piston ring installation and alignment, offering a consistent 3/16" support profile across the specified bore range. Packaged as a service-grade replacement rail, it provides a reliable helper tool for engine assembly and ring seating tasks in compatible rebuild and repair work.
Mahle MS 4.250-4.310 3/16in Support Rail
