Looking to maintain a factory performance in your 6.0 Powerstroke? The Mahle S41940.030 Piston Ring Set .030 is an OE quality product that will help you keep your engine running like new. This set contains rings for a single cylinder and you must order qty 8 for a complete set. Don't settle for anything less than the best - get the Mahle S41940.030 Piston Ring Set .030 today!