The Mahle OE plain ring set is a performance steel Napier second ring specified for a 3.2480-inch bore with 1.2 mm section height and .135-inch RW measurement, offered as a 48-quantity bulk pack per the description. This listing targets shops or rebuilders needing that exact ring size in quantity, emphasizing dimensional fidelity and the Napier steel profile for proper engine rebuild compatibility.
Mahle Rings Perf Steel Napier 2nd Ring 3.2480in x 1.2MM .135in RW Plain Ring Set (48 Qty Bulk Pack)