The Mahle MS piston ring set sized 4.005in +0.005 includes three file-fit rings sized 1.5mm, 1.5mm and 3.0mm. Designed for engine overhaul use, this file-fit kit supplies the necessary oversize for finishing to match cylinder bores, allowing technicians to re-establish compression and oil control as part of routine rebuilding and cylinder finishing procedures.
Mahle MS 4.005in+ .005in 1.5 1.5 3.0 mm File Fit Rings