Mahle OE plain ring set: a performance steel Napier second ring in plain configuration sized 3.771 in with 1.0 mm face specification and .136 in RW, supplied in a 48-count bulk pack per the description. Designed for rebuild or production environments needing bulk quantities of this exact ring specification.
Mahle Rings Perf Steel Napier 2nd Ring 3.771in x 1.0MM .136in RW Plain Ring Set (48 Qty Bulk Pack)