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The Mahle OE plain ring set is a grey iron, second-groove piston ring assembly sized for a 3.5709-inch bore with 1.5 mm ring thickness and a .155 ring width. It functions as a replacement plain ring kit for engine overhauls where precise bore-matched rings are required to restore compression and manage oil control. Suitable for workshop repairs and engine rebuilds needing exact sizing.
Mahle Rings Grey Iron 1.5MM RBT Second Groove 3.5709 x 1.5MM .155 RW Plain Ring Set
