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DFC Diesel Remanufactured 6.6 L5P Long Block Crate Engine
PART#
661723L5PLB | SKU DFC661723L5PLB
Vehicle Fitment For:
2017-2023 GM 6.6L Duramax L5P
See full application list below
$11,049.78
Truck Freight Item(Shipping calculated at checkout)
Description
The DFC Diesel Remanufactured 6.6 L5P Long Block Crate Engine is a dependable replacement for the failed engine in your GMC Sierra or Chevrolet Silverado. DFC makes important improvements during the remanufacturing process to ensure longevity, even in high horsepower applications. DFC uses Rottler machining equipment to ensure precise tolerances that exceed OEM specifications, resulting in 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 other engine builders 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.
DFC 6.6L Long Block Includes:
Complete
short block with the front cover with seal, rear cover with main seal,
oil pan, all new internal components, cylinder heads with all rockers
and pushrods installed, doweled oil pump gear, and woodruff keyed cam shaft.
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
- Professionally Machined & Bored
- Remanufactured From High Quality Components
- Complete Short Block Assembly And Cylinder Heads
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:
Top end gaskets, injector return Line seal kit, and turbocharger gasket kit not included.
It is the customer's responsibility to ensure that the injectors, injection pumps, and fuel system are professionally tested, cleaned, and replaced if necessary.
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.
Note: $500
Crate charge is included in core charge total. Engine shipping crate
must be returned with core engine to receive full core credit.
Manufacturer Warranty*:
5 Year / 100,000 Miles (Standard) | 1 Year / 19,000 Miles (Commercial)
View Warranty Form
5 Year / 100,000 Miles (Standard) | 1 Year / 19,000 Miles (Commercial)
View Warranty Form
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
Instructions & Tech Info
Installation Info
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Specifications For DFC Diesel 661723L5PLB
MPN
661723L5PLB
SKU
DFC661723L5PLB
ID
151048
Manufacturer Name
DFC Diesel
Shipping Weight
645.00 lb.
Shipping Length
33 in.
Shipping Width
44 in.
Shipping Height
36 in.
Fuel Type
Diesel
E-Code
4
Manufacturer Warranty*
5 Year / 100,000 Miles (Standard) | 1 Year / 19,000 Miles (Commercial)
View Warranty Form
View Warranty Form
Prop 65
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
Internal
LR
ITEM ADDED TO CART
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Product prices marked with an * may require additonal fees, such as a core charge, which will be displayed in the cart.