The Mahle OE plain ring set is a gas-nitrided steel piston ring kit for a 4.005-inch bore with .043 and .157 inch ring widths, supplied as a bulk 48-piece pack. Suited to gasoline engines, this bulk pack is practical for machine shops and rebuilders handling multiple engines. The rings supply the essential sealing components needed for standard rebuild and replacement work.
Mahle Rings Perf Gas Nitride Steel 4.005 x .043 .157 RW Bulk Plain Ring Set (48 Qty Bulk Pack)