2004.5 - 2005 GM 6.6L LLY Duramax Diesel
Required Information: Your Vehicle year and VIN # will give us all info needed to get you the exact replacement engine for your power-train and electronics to match up. If you are buying for a conversion, please contact us before purchase and we can help!
Shipping/Handling & Core Return: Free Flat-Rate freight to commercial address with either a loading dock or fork lift. Residential delivery is available for additional charge. Lift-Gate truck service available at an additional charge. Customer is responsible for freight on core return only. Cores must be like for like and in usable condition to be eligible for core refund.
Break-In Procedure: All Industrial Injection short blocks and long blocks are required to be ran with Joe Gibbs Break In Oil (not included) for the initial 300-500 miles.
Part # PDM-LLYSTKLB-E
Restore factory performance and reliability to your 2004.5–2005 LLY Duramax 6.6L with the Industrial Injection Stock Long Block Engine. Built to meet or exceed OE specifications, this complete long block is the ideal solution for customers looking for a dependable, cost-effective replacement engine without sacrificing quality or durability.
Every Industrial Injection long block is assembled using premium components, precision machining processes, and rigorous quality control standards. From the balanced and blueprinted rotating assembly to the professionally reconditioned cylinder heads, each engine is built to deliver dependable performance, exceptional longevity, and peace of mind for years to come.
Every Industrial Injection Stock Long Block is precision machined, balanced, and assembled to ensure dependable OE-style performance and reliability. The rotating assembly is balanced and blueprinted to reduce vibration, improve longevity, and promote smooth engine operation.
The included cylinder heads are professionally reconditioned and assembled using premium components. Diamond honed valve guides, premium nickel-based valve seat inserts, new unshrouded valves, and new valve springs help restore airflow, sealing performance, and long-term durability.
Each completed engine undergoes simulation testing and extensive quality control procedures before leaving our facility to ensure it meets Industrial Injection's strict standards for reliability and performance.
2004.5–2005 GM Duramax LLY 6.6L
For the best long-term reliability and performance, Industrial Injection recommends replacing or inspecting the following components during engine installation:
This engine is backed by Industrial Injection's 2-Year Unlimited Mileage Warranty.
For optimal engine break-in and long-term performance, Industrial Injection recommends using Driven Racing Oil (Joe Gibbs) Break-In Oil during the first 300–500 miles of operation. This specialized break-in oil helps promote proper ring seating and component wear during the initial startup period. Break-in oil is not included with the engine.
A rebuildable core must be returned to receive full core credit. Core returns must be free from excessive damage, missing major components, or conditions that would make the core unusable for remanufacturing.
WARNING : This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov
Industrial Injection
Industrial Injection
Industrial Injection
Industrial Injection
DFC Diesel