Mahle OE plasma steel top ring bulk pack supplies performance moly top rings sized for a 4.165-inch bore and 1.0mm section, offered in a 48-piece bulk pack for engine shops and rebuilders. These plasma-coated top rings are intended for applications where consistent ring geometry and coating quality are required across multiple engine builds or production needs.
Mahle Rings Perf Plasma Steel Top Ring 4.165in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)