{"product_id":"dfc-diesel-kore590304staulb-kore-series-long-block-std-auto-2003-2004-dodge-ram-2500-3500-5-9l-cummins-24v","title":"DFC Diesel KORE590304STAULB Kore Series Long Block (STD\/AUTO) | 2003-2004 Dodge RAM 2500\/3500 5.9L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNew Mahle pistons for dependable performance\u003c\/li\u003e\n\u003cli\u003eNew Mahle main and rod bearings\u003c\/li\u003e\n\u003cli\u003eTotal Seal gapless piston rings\u003c\/li\u003e\n\u003cli\u003eRemanufactured cylinder head included\u003c\/li\u003e\n\u003cli\u003eAdvanced Rottler precision machining\u003c\/li\u003e\n\u003cli\u003eBlueprinted beyond OEM tolerance specifications\u003c\/li\u003e\n\u003cli\u003eImproved sealing in common leakage areas\u003c\/li\u003e\n\u003cli\u003eNew valves seats guides and seals\u003c\/li\u003e\n\u003cli\u003eFactory preset rockers and pushrods\u003c\/li\u003e\n\u003cli\u003eComplete installation gasket kit included\u003c\/li\u003e\n\u003cli\u003eFive year 100000 mile warranty\u003c\/li\u003e\n\u003cli\u003eFits 2003-2004 5.9L Cummins trucks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePut Proven Quality Behind Every Working Mile\u003c\/h4\u003e\n\u003cp\u003eWhen your Cummins has earned its miles and the original engine is ready for retirement, a well built long block can get the truck back to doing what you bought it for. The DFC Diesel KORE590304STAULB KORE Series Long Block gives 2003-2004 Ram 2500 and 3500 owners a cost conscious alternative to purchasing a new engine without gambling on an unknown used replacement. DFC equips the assembly with new Mahle pistons, Mahle main bearings, Mahle rod bearings, and Total Seal gapless rings, providing quality components where reliability matters most. A remanufactured cylinder head is already part of the package, along with new valves, seats, guides, and other supporting components that help prepare the engine for dependable service. The rockers and pushrods come preset to factory specifications, while the included front and rear covers, oil pan, and complete gasket kit help reduce the number of pieces your shop needs to source separately. Compatibility with most existing components and upgrades also makes it easier to reuse suitable hardware from your current setup, which can simplify a daily driver restoration or commercial truck repair. With a 5 year or 160000 kilometer warranty behind the assembly, the KORE Series offers a practical way to put your 5.9L Cummins back on the road with quality parts and professional preparation already handled.\u003c\/p\u003e\n\u003ch4\u003eTighter Tolerances Start With Better Machine Work\u003c\/h4\u003e\n\u003cp\u003eA dependable remanufactured engine starts at the machine shop, and DFC prepares the KORE590304STAULB using advanced Rottler equipment designed for precise and repeatable engine machining. The cylinder block is blueprinted using a Rottler F69 ATC to tolerances that DFC states are tighter than original OEM specifications, helping establish a consistent foundation before the engine is assembled. New Mahle pistons are paired with Total Seal gapless rings and new Mahle main and rod bearings, replacing critical wear components throughout the lower assembly. The remanufactured cylinder head receives new valves, springs, hardened seats, stem seals, and cast guides, giving the upper portion of the long block fresh components in several important areas. DFC also uses improved gasket sealing methods around known leakage areas, while an MLS head gasket upgrade is available for customers who want that configuration for their build. New front and rear main seals are installed, and a complete gasket set is supplied for the remaining long block installation process. With the valvetrain preset to factory specifications and major engine components already assembled, this KORE Series long block provides a carefully prepared replacement foundation for a 2003-2004 5.9L Cummins.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fitment: \u003c\/strong\u003e 2003, 2004 Dodge RAM 2500\/3500 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2003-2004 5.9L Cummins applications.\u003c\/li\u003e\n\u003cli\u003eThis is a long block assembly, not a complete engine.\u003c\/li\u003e\n\u003cli\u003eIncludes a remanufactured cylinder head.\u003c\/li\u003e\n\u003cli\u003eRockers and pushrods are preset to factory specs.\u003c\/li\u003e\n\u003cli\u003eMost existing components and upgrades remain compatible.\u003c\/li\u003e\n\u003cli\u003eComplete installation gasket set is included.\u003c\/li\u003e\n\u003cli\u003eMLS head gasket upgrade is available.\u003c\/li\u003e\n\u003cli\u003eManufacturer states tighter than OEM block tolerances.\u003c\/li\u003e\n\u003cli\u003eImproved sealing methods target common leak areas.\u003c\/li\u003e\n\u003cli\u003eNew front and rear main seals included.\u003c\/li\u003e\n\u003cli\u003eDFC advertises a 5 year 100000 mile warranty.\u003c\/li\u003e\n\u003cli\u003eListed shipping weight is 828 pounds.\u003c\/li\u003e\n\u003cli\u003eCore Charge: $2,900.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":54419119341852,"sku":"DDUKORE590304STAULB","price":4949.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/2279\/8108\/files\/59-Front_web_02f338e2-bdb5-4c2c-b754-f7aa19d7e17d.jpg?v=1786394599","url":"https:\/\/www.alligatorperformance.com\/products\/dfc-diesel-kore590304staulb-kore-series-long-block-std-auto-2003-2004-dodge-ram-2500-3500-5-9l-cummins-24v","provider":"Alligator Performance","version":"1.0","type":"link"}