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04.5-07 5.9L Cummins DFC Tow/Haul Series Reman Long Block Engine

04.5-07 5.9L Cummins DFC Tow/Haul Series Reman Long Block Engine
04.5-07 5.9L Cummins DFC Tow/Haul Series Reman Long Block Engine
04.5-07 5.9L Cummins DFC Tow/Haul Series Reman Long Block Engine
04.5-07 5.9L Cummins DFC Tow/Haul Series Reman Long Block Engine
04.5-07 5.9L Cummins DFC Tow/Haul Series Reman Long Block Engine
04.5-07 5.9L Cummins DFC Tow/Haul Series Reman Long Block Engine
04.5-07 5.9L Cummins DFC Tow/Haul Series Reman Long Block Engine
  • Part Number: DFCTH5904507STAULB

Available Options

Improve the towing and hauling abilities of your 2004.5-2007 Dodge 5.9L Cummins (Automatic & Manual) when you install the DFC Diesel Remanufactured Tow/Haul Series Long Block Crate Engine with supporting modifications. The Tow/Haul Series can support up to 700 horsepower and is remanufactured to the most strict guidelines. Featuring crucial upgrades, the Tow/Haul Series allows you to build for high performance without having to worry about reliability. Each DFC Engine is machined using advanced Rottler machining equipment and is built to tolerances that are more precise than the factory specifications. 

Engine Remanufacturing

DFC engines are usually matched with near identical weight piston and connecting rod assemblies. As a result, you get a smoother running engine that creates less noise and feels more balanced. This remanufactured Long Block includes new pistons, rings, bearings, and seals.

Engine Upgrades

Each 5.9L Cummins Tow/Haul Series engine comes standard with an O-ringed cylinder head. The Tow/Haul Series engine features improved gasket sealing methods in common leakage areas and prevents piston failures caused by faulty injectors with increased piston cooling. Ceramic coated piston crowns and dry film coated skirts reduce piston wear and ensures the Tow/Haul Series sustains it's high level of perfromance. Featuring ARP series 2000 head studs, the Tow/Haul Series includes either the Colt Cams stage 3 camshaft or the Hamilton Cams 178-208 for added strength. Additional upgrades to the Tow/Haul HD Series include Hamilton Cams 103lb HD valve springs, DFC HD push rods, and a bolt in rear aluminum freeze plug. 

Cylinder Head

DFC replaces each valve guide with a new cast guide in every cylinder head. Instead of just re-grinding old valves, DFC installs all new valves from high quality sources like MAHLE or SBI. To address common cracking areas in the cylinder head, DFC also machines each head to remove the factory hardened seat material. DFC then installs new SBI valve seats to help eliminate premature cracking, giving you a more durable cylinder head.


DFC engines are remanufactured by diesel enthusiasts and are built for diesel enthusiasts. To show their pride, DFC offers one of the most comprehensive warranties in the industry. Each DFC Tow/Haul Series Long Block Engine comes standard with a 5-year, 100,000 mile warranty. 

Tow/Haul Series 5.9L Long Block Includes:

The DFC Long Block has all rockers and pushrods preset to factory specifications and includes a remanufactured cylinder head, internal components, front & rear cover, oil pan, and the complete gasket kit for long block installation.


  • Remanufactured Long Block Engine
  • Assembled With Upgraded ARP Fasteners
  • Improved Gasket Sealing Methods In Common Leak Areas

New Engine Checklist (Replacement Items - Sold Separately):

  • Oil Cooler - highly recommended and mandatory if your past engine had a bearing failure.
  • Injectors - highly recommended especially on higher model engines or engines with contaminated fuel.
  • Turbocharger - recommended if mileage over 125K, mandatory if shaft play, or if engine was dusted.
  • Water Pump - highly recommended if engine has over 125K.
  • Evans Waterless Coolant - recommended upgrade to prevent corrosion and boilover. 

Application Note:  

The specific brand of each component may change due to part availability at the time of each build. Parts are chosen at the discretion of DFC and cannot be specially requested. DFC uses only the best components sourced from multiple brands during the remanufacturing process and backs their engines with an industry-leading 5-year 100,000 mile warranty.

Shipping charges are calculated based on shipping to the lower continental 48 states to a business with fork lift or loading dock. If you need this item shipped to a residential address, please call for an accurate shipping quote. 

Note: $500 Crate charge is included in core charge total. Engine shipping crate must be returned with core engine to receive full core credit.

Please drain all fluids, if any, from the core. The core returned must be a like-for-like make, model, type and part number. Cores will not be accepted from a salvage or junkyard. Cores that have been disassembled or have missing and/or damaged major components will not receive full core credit. Cores returned with destroyed blocks or other severely damaged components may be subject to a pro-rated core return. Please call us to discuss possible deductions.

Emissions Notice

This product is not legal for sale or street use in California. Certain aftermarket products are subject to governmental emission standards regulated by the California Air Resources Board. In order for these products to be legal on a specific vehicle in California, the part number must receive a CARB Executive Order (EO) number. This number makes the part legal for use only on specific years, makes and models of vehicles. A decal with CARB EO number for these parts must be displayed in the engine bay to satisfy smog inspection requirements.

DFC Diesel Part Number: DFCTH5904507STAULB

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