The Mahle OE moly top ring set is a plasma-steel piston top ring finished with an HVOF molybdenum coating sized for a 3.932 in bore, 1.0 mm thickness and .143 in ring width. Supplied in a 48-count bulk pack, this configuration is intended for repeated use across multiple rebuilds or for stocking when consistent 3.932 in top rings with HVOF moly finish are needed.
Mahle Rings Perf Plasma Steel Top Ring 3.932in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)