The Mahle OE moly ring set is a plasma-moly steel piston ring kit supplied in bulk for engine rebuilds. These rings measure 1.5 mm with .151 radial wall and fit a 4.005 in bore; the listing is a 48-piece bulk pack suitable for shops or multiple rebuilds. Use during piston assembly where precise ring sizing to bore diameter is required.
Mahle Rings Plasma Moly Steel 1.5MM x .151 RW 4.005in Bore Diameter. Bulk Ring Set (48 Qty Bulk Pk)