DFC Diesel Remanufactured 6.6 LB7 Long Block Crate Engine

PART# 660104LB7LB | SKU DFC660104LB7LB

Vehicle Fitment For:
2001-2004 GM 6.6L Duramax LB7 (Manual & Automatic)

See full application list below
NOTES: $500 Crate charge is included in core charge total. Engine shipping crate must be returned with core engine to receive full core credit.
$8,260.86

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Description

Putting a DFC Diesel Remanufactured Long Block Crate Engine in your 2001-2004 GM 6.6L Duramax LB7 is a cost-effective alternative to buying a whole new truck! Each remanufactured engine is built to give you a dependable and durable replacement for your tuck. During the remanufacturing process, DFC makes crucial improvements to help your engine last, even in applications with increased horsepower. For example, each engine features an EDM oil pump shaft with a hardened dowel installed to prevent slipping and the risk of an oil pressure loss. DFC uses Rottler machining equipment to ensure that each engine is built to tolerances that are more precise than OEM specifications for a more efficient and longer lasting engine.
 
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 guides, DFC replaces each one with a new cast guide in every cylinder head. Instead of just re-grinding and reusing valves like other companies, DFC installs all new valves from high quality sources like MAHLE or SBI.

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 camshaft and complete gasket kit for installation.

ISO Certified
This engine is manufactured in an ISO 9001:2015 Certified Quality Management System facility to meet strict international quality standards, ensuring that every engine is built for reliability and long service life. 

Features:
  • Remanufactured Long Block Engine 
  • Upgraded EDM Oil Pump Shaft & Hardened Dowel Pin
  • 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.

Applications:
2001-2004 Chevrolet Silverado 2500HD/3500HD (6.6 Duramax LB7)
2001-2004 GMC Sierra 2500HD/3500HD (6.6 Duramax LB7)
Manufacturer Warranty*:
5 Year / 100,000 Miles (Standard) | 1 Year / 19,000 Miles (Commercial)
View Warranty Form
Shipping Restrictions Apply shipping restriction icon 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.

Instructions & Tech Info

Installation Info

DFC660104LB7LB Installation Video

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Specifications For DFC Diesel 660104LB7LB

MPN 660104LB7LB
SKU DFC660104LB7LB
ID 60870
Manufacturer Name DFC Diesel
Shipping Weight 645.00 lb.
Shipping Length 33 in.
Shipping Width 44 in.
Shipping Height 36 in.
Fuel Type Diesel
Manufacturer Warranty* 5 Year / 100,000 Miles (Standard) | 1 Year / 19,000 Miles (Commercial)
View Warranty Form
Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
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