{"product_id":"dfc-diesel-th5904507stsoalbhd-tow-haul-hd-series-standard-speed-of-air-long-block-2004-5-2007-5-9-dodge-cummins","title":"DFC Diesel TH5904507STSOALBHD Tow\/Haul HD Series Standard Speed Of Air Long Block | 2004.5-2007 Dodge RAM 5.9L Cummins","description":"\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports up to 900 horsepower output\u003c\/li\u003e\n\u003cli\u003eIncludes heavy-duty Wagler connecting rods\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly for smooth operation\u003c\/li\u003e\n\u003cli\u003eFluidamper helps control engine vibration\u003c\/li\u003e\n\u003cli\u003eComes with HD flexplate for drivetrain strength\u003c\/li\u003e\n\u003cli\u003eDesigned for standard transmission setups\u003c\/li\u003e\n\u003cli\u003eBuilt for high-power street and towing use\u003c\/li\u003e\n\u003cli\u003eMachined with Rottler CNC for precision\u003c\/li\u003e\n\u003cli\u003eAll internals are new OEM or better\u003c\/li\u003e\n\u003cli\u003eCylinder heads resurfaced and magnafluxed\u003c\/li\u003e\n\u003cli\u003eIncludes complete top-end gasket kit\u003c\/li\u003e\n\u003cli\u003eBacked by 5-year or 160,000 km warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eBuilt For The Daily Grind And Weekend Thrills\u003c\/h4\u003e\n\u003cp\u003eWhen your truck does double duty as a workhorse and a powerhouse, the DFC Tow\/Haul HD Series Standard Long Block is built to keep up. Designed for 2004.5-2007 5.9L Dodge Cummins trucks, this long block delivers serious strength for street-driven builds that tow heavy and demand performance. Whether you're hauling equipment during the week or pushing big power at the track, this engine handles it all without breaking a sweat. It comes packed with heavy-duty upgrades like Wagler connecting rods, a balanced rotating assembly, and a Fluidamper that all work together to keep things running smooth at high horsepower levels. This build is rated for up to 900 HP, giving you the confidence to dial things up when the job or trail demands more. And since it’s the Standard version, it’s set up for manual transmissions, offering tighter control and more direct power delivery. With DFC’s 5-year, 160,000 km warranty behind it, you can push this engine hard knowing it's ready for the long haul.\u003c\/p\u003e\n\u003ch4\u003eReinforced Internals Deliver Street Ready High Horsepower\u003c\/h4\u003e\n\u003cp\u003eUnderneath the surface, the DFC Tow\/Haul HD Series Standard Long Block is precision built for high-horsepower applications that still see daily street use. Every unit begins with a professionally machined block, bored for over-sized pistons and assembled with all new name-brand internals that meet or exceed OEM standards. The cylinder head is fully remanufactured with new valves, guides, seats, and seals, then magnafluxed and resurfaced to ensure long-term durability. Unique to the HD Series, this version features Wagler connecting rods for added strength under load, a balanced rotating assembly to maintain stability at high RPMs, and a Fluidamper to help reduce harmonic vibration. An HD flexplate adds drivetrain reinforcement, especially useful for trucks that tow or operate under constant stress. It includes everything needed for a complete install, from preset valvetrain components to a full top-end gasket kit. Built for 900 HP but perfectly suited for reliable power in the 650-800 HP range, this long block is a serious foundation for your next high-performance diesel build.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Fits: \u003c\/strong\u003e 2004.5, 2005, 2006, 2007 Dodge RAM 5.9L Cummins\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for 2004.5-2007 5.9L Dodge Cummins engines\u003c\/li\u003e\n\u003cli\u003eBuilt for standard (manual) transmission setups only\u003c\/li\u003e\n\u003cli\u003eRated for up to 900 HP (94-98) and 850 HP (98.5-02)\u003c\/li\u003e\n\u003cli\u003eBest suited for use between 650-800 HP applications\u003c\/li\u003e\n\u003cli\u003eIncludes all features of Street and Tow\/Haul Series engines\u003c\/li\u003e\n\u003cli\u003eEquipped with Wagler connecting rods for high strength\u003c\/li\u003e\n\u003cli\u003eIncludes Fluidamper and HD flexplate for driveline support\u003c\/li\u003e\n\u003cli\u003eBalanced rotating assembly ensures smoother high-RPM operation\u003c\/li\u003e\n\u003cli\u003eAll engine internals are new and meet or exceed OEM specs\u003c\/li\u003e\n\u003cli\u003eFully remanufactured and resurfaced cylinder head included\u003c\/li\u003e\n\u003cli\u003eMachined using Rottler CNC for maximum precision\u003c\/li\u003e\n\u003cli\u003eCovered by a 5-year or 160,000 km limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"931\" data-start=\"884\"\u003eStreet Series vs Tow\/Haul vs Tow\/Haul HD\u003c\/h3\u003e\n\u003cul data-end=\"1398\" data-start=\"933\"\u003e\n\u003cli data-end=\"1099\" data-start=\"933\"\u003e\n\u003cp data-end=\"1099\" data-start=\"935\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStreet Series:\u003c\/span\u003e Ideal for daily driving, light work, and diesel enthusiasts. Focuses on reliability upgrades over stock, with head stud and sealing improvements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1240\" data-start=\"1100\"\u003e\n\u003cp data-end=\"1240\" data-start=\"1102\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul Series:\u003c\/span\u003e All Street upgrades plus added performance parts for higher load and towing power. Supports builds up to ~700 HP.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1398\" data-start=\"1241\"\u003e\n\u003cp data-end=\"1398\" data-start=\"1243\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eTow\/Haul HD Series:\u003c\/span\u003e The most robust option. Adds heavy-duty internals like Wagler rods and a balanced rotating assembly for 800+ HP capability.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1445\" data-start=\"1405\"\u003eStandard\/Auto vs Standard vs Auto\u003c\/h3\u003e\n\u003cul data-end=\"1706\" data-start=\"1447\"\u003e\n\u003cli data-end=\"1557\" data-start=\"1447\"\u003e\n\u003cp data-end=\"1557\" data-start=\"1449\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard\/Auto:\u003c\/span\u003e Compatible with both manual and automatic transmissions. Offers the most flexibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1636\" data-start=\"1558\"\u003e\n\u003cp data-end=\"1636\" data-start=\"1560\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eStandard:\u003c\/span\u003e Built specifically for manual transmission configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1706\" data-start=\"1637\"\u003e\n\u003cp data-end=\"1706\" data-start=\"1639\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003eAuto\u003c\/span\u003e: Built specifically for automatic transmission setups.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DFC Diesel","offers":[{"title":"Default Title","offer_id":68060706963729,"sku":"DDU-TH5904507STSOALBHD","price":20702.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/0477\/1089\/files\/0034631_dfc-long-block-engine-towhaul-series-dodge-59l-cummins-2003-2004_ab6875a4-88c5-4fd5-9b9e-41e0d494d1a6.webp?v=1794721854","url":"https:\/\/gautoparts.com\/products\/dfc-diesel-th5904507stsoalbhd-tow-haul-hd-series-standard-speed-of-air-long-block-2004-5-2007-5-9-dodge-cummins","provider":"Guaranteed Auto Parts","version":"1.0","type":"link"}