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8659.19
Part #: DFC6604505LLYLB
DFC Diesel Remanufactured Long Block Crate Engine
Vehicle Fitment:
2004.5-2005 GM 6.6L Duramax LLY (Manual & Automatic) | See full application list below
2004.5-2005 GM 6.6L Duramax LLY (Manual & Automatic) | See full application list below
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Description
The DFC Remanufactured Long Block Crate engines are crafted for the daily driver, work truck and diesel enthusiasts who want a quality rebuilt engine for their 2004.5-2005 GM 6.6L Duramax LLY. During the remanufacturing process, DFC makes crucial improvements to help your engine maintain durability and reliability. Each Duramax engine remanufactured by DFC has been updated to fix common issues with the factory engine, such as installing an EDM oil pump shaft with a hardened dowel installed to prevent slipping the risk of an oil pressure loss. DFC uses Rottler machining equipment to ensure your engine is built to tolerances that are tighter and more precise than OEM specifications. This helps DFC engines last longer and run more efficiently while being an extremely cost effective alternative to replacing your truck.
Engine Remanufacturing
The DFC short block is machined with near identical weight piston and connecting rod assemblies to help you get a smoother running engine that makes less noise and is more balanced. DFC short blocks include reinforced internals with new pistons, rings, doweled oil pump, bearings, and rods.
Cylinder Head
Unlike some others in the industry that re-use wearing items like valves and valves guides, DFC installs all new valves from high quality sources like MAHLE or SBI and replaces each valve guide with a new cast guide in every cylinder head. 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.
Warranty
DFC engines are remanufactured by diesel enthusiasts for diesel enthusiasts. DFC stands behind their products with one of the industry’s leading 5 year 100,000 mile warranty (Non-Commercial).
DFC 6.6L Long Block Includes
Complete short block with the front cover and seal, rear cover with main seal, oil pan, all new internal components, cylinder heads with all rockers and pushrods installed, doweled oil pump gear, woodruff keyed cam shaft and complete gasket kit for installation.
Features:
- Remanufactured Long Block Engine
- Upgraded EDM Oil Pump Shaft & Hardened Dowel
- 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.
Applications:
2004.5-2005 Chevrolet Silverado 2500HD/3500HD (6.6 Duramax LLY)
2004.5-2005 GMC Sierra 2500HD/3500HD (6.6 Duramax LLY)
2004.5-2005 Chevrolet Silverado 2500HD/3500HD (6.6 Duramax LLY)
2004.5-2005 GMC Sierra 2500HD/3500HD (6.6 Duramax LLY)
Shipping Restrictions Apply 
This product can not be shipped to these states/provinces: CA
This product can not be shipped to these states/provinces: CA Note: $500 Crate charge is included in core charge total. Engine shipping crate must be returned with core engine to receive full core credit.
Specifications
- MPN 6604505LLYLB
- SKU DFC6604505LLYLB
- ID 60874
- Manufacturer Name DFC Diesel
- Shipping Weight 645.00 lb.
- Shipping Length 33 in.
- Shipping Width 44 in.
- Shipping Height 36 in.
- Fuel Type Diesel
-
Warranty Info
5 Year / 100,000 Miles
View Warranty Form -
Prop 65
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
- Internal L0R0
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Fitment verification applies to year, make and engine only. Individual details such as model, trim packages, build dates, and other factory options can change fitment and must be verified by customer.
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