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The Mahle file‑fit piston ring set is specified for a 4.155" +0.005 in. bore and includes top and second rings at 1/16 in. thickness with a 3/16 in. oil ring. Supplied as file‑fit rings, this set requires final gap fitting to the cylinder for correct end‑gap and optimal contact. The listing provides exact ring cross‑sections to guide selection and installation for appropriate sealing and oil control during engine assembly.
Mahle MS 4.155in+ .005in 1/16in 1/16in 3/16in File Fit Rings
