The Mahle plain ring set is a grey iron second ring specified at 1.5mm thickness with a 3.9074 inch diameter and section dimensions listed as .0586 and .163 RW. Intended for piston ring replacement, this plain ring set matches the dimensional references provided for rebuild or maintenance of compatible engines where these exact sizes are required.
Mahle Rings Grey Iron THG 1.5MM Second Ring 3.9074in x .0586 .163 RW Plain Ring Set