Mahle moly top compression ring specified at 3.8950in bore by 5/64in thickness, supplied as a bulk pack of 48 rings. This moly clamped top ring is intended for applications requiring the listed bore and thickness dimensions and is packaged for volume use in engine ring replacement or production environments where that specific ring size is needed.
Mahle Rings 3.8950in X 5/64in Moly Claimer Top Compression Ring Moly Ring Set (48 Qty Bulk Pack)