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The Mahle OE plain piston ring set is a performance steel Napier THM-13 plain ring sized 4.185 in diameter by 1.5 mm thickness with .150 in ring width, supplied in a bulk pack of 48 rings. Intended for high-volume replacement or shop use, these rings match pistons with the specified dimensions for reliable sealing and compression restoration during engine servicing.
Mahle Rings Perf Steel Napier THM-13 4.185in x .1.5MM .150RW Bulk Plain Ring Set (48 Qty Bulk Pack)
