Engine Long Block Short Block. 6 Piston and Piston Ring Kit Set STD For 5.9L Cummins ISBe 3800781 3804971 4B. Price For 6 Cylinder Kit Each Kit Included. Piston, Piston Ring Set, and 2 Locks No Piston Pin. Some dodge VP44 eninge may have different piston, Like. Please confirm with your engine number or VIN before order. Piston is very importand item. We will never respon for lost without confirm by us. 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.