Engine Long Block Short Block. New OEM DCEC Cummins QSB4.5 UpTo 240HP 4.5L Diesel Engine Complete power unit 4B. This product is a non-standard accessory designed exclusively for automotive modification and upgrading. Tailored for car enthusiasts and experts, it provides a specialized solution for those looking to enhance their vehicle’s performance beyond conventional parameters. Please ensure you consult with a professional installer or mechanic before purchasing to guarantee compatibility and safe installation. 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 enginevalve must be active, keep your engine can be stop any time.