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The Mahle Plain Ring Set is a performance Napier THM-13 plain ring kit specified as 4.045in x 1.5MM. Supplied as a set for piston ring replacement, this Mahle OE offering is intended for engine rebuilds or maintenance that require exact ring dimensions and plain-ring construction. Made to Mahle OE sizing specifications, the set helps ensure accurate ring seating during assembly and consistent replacement dimensions.
Mahle Rings Performance Napier THM-13 4.045in x 1.5MM Plain Ring Set
