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This Mahle plain ring set includes second (RBT) rings sized for a 4.165 in bore diameter with a 5/64 in edge width. The rings are grey iron construction and supplied as a plain second‑ring kit for piston assembly and sealing duties. Presented as a matched set, they provide the correct dimensions and materials for rebuilds where these specifications are required.
Mahle Rings 4.165in Bore Dia 5/64 Edge Width Grey Iron RBT Second Ring Plain Ring Set
