The Mahle OE Plasma-Moly top ring set is specified as 3.9027 x 1.5mm and supplied as a bulk pack of 48 rings. This moly-treated top ring format is intended as a direct replacement component for engine rebuild or production needs where that specific diameter and section are required. The bulk quantity suits shops and rebuilders who need multiple matching rings for piston reconditioning projects.
Mahle Rings 3.9027 X 1.5MM Plasma-Moly Steel Top Ring Moly Ring Set (48 Qty Bulk Pack)