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Mahle plain piston ring set specified for a 4.625 in. bore, noted as Steel Napier THM-13 with 1.0 mm thickness and .136 radial width. This OE-style ring set offers standard plain ring geometry suitable for production rebuilds and service applications where reliable ring sealing and straightforward replacement are required for routine engine maintenance.
Mahle Rings Steel Napier THM-13 4.625 Bore x 1.0MM .136 RW Plain Ring Set
