Engine Long Block Short Block. 6 Pistons and Piston Ring Set For ISB QSB 6.7L Cummins 24V CASE 4934860 4955160. Price For 6 Cylinder Kit Each Kit Included. Piston Ring Set, Pin and 2 Locks. For Piston Ring Only Please Check Next. List is STD piston, please measure your cylinder bore, if it had been wear over size, this piston don’t fit, you need oversize piston. Warning : Cummins parts can be quite complex, and even the same engine model may use different parts. For this reason, we strongly recommend that customers order parts based on the specific part number. If you are unsure of the part number, please provide your engine number or VIN, and we would be happy to assist you in verifying the correct part. The count starts from the day after you placed your order and excludes weekends and holidays. We are subject to labor law regulations that restrict weekend sales services. All the warrantee Are Limited in Parts Only, engine rotation is very Danger, to be safe when the engine running all the people must keep distance at least 10 feet away from engine rotation radius, any time the shut down valve must be active, keep your engine can be stop any time.