Need a reliable replacement for your worn-out 5.9L Cummins? The D&J Precision Machine Essential Long Block Engine is built for serious durability and dependable performance in your 2004.5–2007 Dodge.Whether your truck’s a daily driver, tow rig, or workhorse, this remanufactured long block is a smart, high quality upgrade that delivers OEM level fit and feel, with a few extra perks under the hood. Each engine is fully torn down, inspected, and precision machined to ensure everything meets or exceeds factory specs. You get a reconditioned cylinder head with hardened valve seats and a high performance CNC valve job, plus a balanced and blueprinted rotating assembly for smooth, lasting operation. It includes ARP 2000 head studs and all the necessary gaskets and seals for installation, just bring your own oil pan and front cover.Built and designed with longevity in mind, this long block is perfect for getting your 5.9L back on the road with confidence.