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The Mahle OE plain ring set is a replacement piston ring kit featuring steel Napier THM-13 rings made for a 4.605" bore with 1.0 mm thickness and .136" ring width. Supplied as a bulk pack, it provides standard plain rings for engine rebuilds and sealing restoration, suitable for professional shops needing exact sizing and consistent quality for routine overhauls.
Mahle Rings Steel Napier THM-13 4.605 Bore x 1.0MM .136 RW Plain Ring Set (48 Qty Bulk Pack)
