The Mahle OE plain piston ring bulk pack is specified as gas-nitrided steel in 4.080 x .043, .157 RW dimensions and comes in 48-count bulk packs for workshop stocking. These plain rings are intended for rebuild and maintenance work, offering consistent sizing across multiple sets so technicians can quickly access the correct ring size for piston and cylinder service.
Mahle Rings Perf Gas Nitride Steel 4.080 x .043 .157 RW Bulk Plain Ring Set (48 Qty Bulk Pack)