2011-2016 6.6 LML Duramax Stock Long Block - Industrial Injection
2011-2016 6.6 LML Duramax Stock Long Block - Industrial Injection
6.6L LML Duramax Stock Long Block ECO - Industrial Injection
2011-2016 6.6 LML Duramax Stock Long Block - Industrial Injection
Industrial Injection LML Duramax Stock Long Block Engine (2011-2015)
2011-2016 6.6 LML Duramax Stock Long Block - Industrial Injection
2011-2016 6.6 LML Duramax Stock Long Block - Industrial Injection
6.6L LML Duramax Stock Long Block ECO - Industrial Injection
2011-2016 6.6 LML Duramax Stock Long Block - Industrial Injection
Industrial Injection LML Duramax Stock Long Block Engine (2011-2015)

Industrial Injection LML Duramax Stock Long Block Engine (2011-2015)

Industrial Injection SKU: PDM-LMLSTKLB-E
Price
Regular price $9,79995
Regular price $000 Sale price $9,79995
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Premium Freight Program: $500 flat-rate freight each way via Old Dominion. Core support available.
Shipping calculated at checkout.
Industrial Injection Premium Freight Program

Premium Freight Coordination

Qualifying stocked engines ship through our coordinated flat-rate freight program with Old Dominion.

✓ $500 flat-rate freight each way
✓ Handled exclusively through Old Dominion
✓ Core return support available
✓ Questions? Call our engine team
Premium Diesel Components, Delivered with Confidence.

Industrial Injection LML Duramax Stock Long Block Engine (2011-2015)

Restore factory performance and reliability to your 2011–2015 LML 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.

Key Features

Engine Features

  • Remanufactured 6.6L LML Duramax long block
  • Designed to meet or exceed OE specifications
  • Sim tested short block
  • Balanced and blueprinted rotating assembly
  • Industrial Injection X Series pistons
  • Balanced and keyed Duramax crankshaft
  • Includes stock harmonic damper and stock flex plate
  • Balanced connecting rods
  • Keyed camshaft
  • Pinned oil pump
  • Stock oil pickup tube
  • Stock oil pan
  • Built for long-term reliability and durability

Cylinder Head Features

  • Reconditioned, milled, and surfaced cylinder heads
  • High-strength alloy, heat-treated iron-based valve guides
  • Diamond honed valve guides
  • Premium nickel-based, non-magnetic valve seat inserts
  • New unshrouded valves
  • Multi-angle valve job
  • New valve springs installed
  • Duramax OEM head gaskets
  • Stock head bolts installed

Stock Long Block Construction

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.

What's Included

  • Fully assembled LML Duramax long block
  • Reconditioned and assembled cylinder heads
  • Industrial Injection X Series pistons
  • Balanced and keyed OEM Duramax crankshaft
  • Stock harmonic damper
  • Stock flex plate
  • Balanced Duramax connecting rods
  • Keyed Duramax camshaft
  • Pinned oil pump
  • Stock oil pickup tube
  • Stock oil pan
  • Duramax OEM head gaskets
  • Stock head bolts
  • New valve springs

Not Included

  • Fuel system components
  • Turbocharger components
  • Intake and exhaust manifolds
  • Injectors
  • Oil cooler
  • Water pump
  • Engine accessories
  • Break-in oil

Vehicle Fitment

2011–2015 GM Duramax LML 6.6L

  • Chevrolet Silverado 2500HD
  • Chevrolet Silverado 3500HD
  • GMC Sierra 2500HD
  • GMC Sierra 3500HD

Recommended Replacement Items

For the best long-term reliability and performance, Industrial Injection recommends replacing or inspecting the following components during engine installation:

  • Oil Cooler – Recommended replacement and required if the previous engine experienced a bearing failure
  • Injectors – Recommended to be tested or replaced
  • Turbocharger – Recommended replacement if the previous engine has over 100,000 miles; required if the previous engine experienced a bearing failure or dusting event
  • Water Pump – Recommended replacement for engines with over 100,000 miles

Why Choose the Industrial Injection Stock Long Block?

  • Built to meet or exceed OE specifications
  • Precision balanced and blueprinted rotating assembly
  • Premium reconditioned cylinder heads
  • Proven Industrial Injection engine-building expertise
  • Ideal for stock replacement, towing, and daily driving applications
  • Engineered for long service life and dependable performance
  • Thoroughly tested and quality inspected before shipment

Warranty Information

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.

Core Information

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.
Shipping information

Free economy ground shipping on most orders over $200. This includes lower 48 United States only. Excludes products that must ship freight.

Core Return Info

Read Carefully!

When you purchase a product from our website that has a core requirement, you have two options:

1. You choose to pay the core charge and we will ship the product right away, then once we receive the cores you will be refunded the core charge if your cores pass our inspection qualifications. This is the preferred choice and has the least delays. 

2. You choose to send in your cores before we ship the product that was purchased. This choice has the risk of delayed shipment of your purchased product and our inventory is not guaranteed by the time we receive your cores. You will need to follow all of the instructions below as quickly as possible so that you can get your purchased product and we can receive the cores. When you choose this option you acknowledge that by the time we receive your cores, our inventory could have change and there could be a delay in your shipment. 

 

Please return all cores to:



Industrial Injection Core Returns
2858 South 300 West
Salt Lake City, Utah 84115

INCLUDE RA# THAT WAS ISSUED AT TIME OF PURCHASE! If RA # is lost, please call Customer Service at (800) 955-0476. Have your original invoice at time of phone call to give all appropriate information for return.

Core return freight is the responsibility of the customer

FULL CREDIT WILL BE GIVEN WHEN: 

In order to receive full core credit, your core(s) must be returned within 90 days from receipt of order. It must be as is “off the engine.” Full core credit will be given if core meets acceptance criteria. Cores that are damaged during shipment to Industrial Injection are the responsibility of the customer and their shipping company.

½ CORE CHARGE CREDIT WILL BE GIVEN WHEN:

  • Slightly damaged housing or camshaft
  • Missing parts such as FCA

No Core Credit issued when:

  • Core is seized or hydraulic head is cracked
  • Excessive damage ( Heavy use of Bio-diesel and rust are common causes for unacceptable core)
  • Core is fire damaged
  • Core is returned after 90 days/3months

Please do the following when returning a core:

  • Make sure you have removed all fittings from your old unit
  • Drain all fuel and oil from unit
  • Package cores so that fuel and oil does not escape from the package

NOTE: packages that have fuel or oil residue on the outside of the box during shipping will not be delivered by UPS or the postal service which will cause delays.

  • Please re-use boxes and bags that parts were shipped in originally. These boxes are UPS approved to reduce damage while being handled in freight.
  • All shipping charges are the responsibility of the customer
  • Please write on the box “Core Return” and have RA # clearly written on the outside of box
  • Include copy of original invoice and RGA inside box

PLEASE RETAIN RA#, INVOICE # AND TRACKING NUMBER UNTIL CREDIT IS RECEIVED BY YOU. We do not research by customer name, only invoice # or RA #.
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