This Mahle OE plain ring set is a performance second ring offered in a bulk pack and sized at 4.295 in diameter with .043 and .135 in cross-sections. It’s presented as a direct replacement option for engine rebuilds where that precise sizing is required. The copy focuses on the product identity, intended use in piston assemblies, and the supplied dimensional details.
Mahle Rings Perf Steel Napier 2nd Ring 4.295in x .043 .135in RW Plain Ring Set (48 Qty Bulk Pack)