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  1. Home
  2. GM Duramax
  3. 2011-2016 GM Duramax 6.6L LML
  4. Engine Building Parts

2011-2016 GM Duramax 6.6L LML Engine Building Parts

Rebuilding an engine is common process for many diesel truck owners alike, and now you can easily rebuild your 2011-2016 GM 6.6L Duramax LML here at Alligator Performance! We carry everything from Cylinder Heads and Gaskets Kits for improved power, to complete crate engines for a total overhaul, and just about everything else you'll need in between. Better yet, we only work with trusted and reliable brands to ensure your Sierra/Silverado 2500/3500 gets outfitted with the best possible upgrades imaginable. Each one of these aftermarket engine components is crafted to meet the high demands of our customers, so pick some up today to set your custom build apart from the rest of the pack! GM Duramax Fitments: 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

GM Duramax>2011-2016 6.6L LML
  • Pistons & Rings Pistons & Rings
  • Head Studs & Main Studs Head Studs & Main Studs
  • Rods Rods
  • Heads Heads
  • Gaskets Gaskets
  • Motor Mounts Motor Mounts
  • Crate Engines Crate Engines
  • Glow Plugs Glow Plugs
  • Valve Covers Valve Covers

Products [23]

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Item In Cart Carrillo D7011 High-Performance Piston Set | 01-18 GM 6.6L Duramax 2500HD / 3500HD
Carrillo D7011 High-Performance Piston Set | 01-18 GM 6.6L Duramax 2500HD / 3500HD
- Call 208-719-7400 for Availablity
$2,469.60
View Details
Item In Cart Carrillo D7000 High-Performance Piston Set | 01-18 GM 6.6L Duramax 2500HD / 3500HD
Carrillo D7000 High-Performance Piston Set | 01-18 GM 6.6L Duramax 2500HD / 3500HD
- Call 208-719-7400 for Availablity
$2,469.60
View Details
Item In Cart Carrillo D7001 High-Performance Piston Set | 01-18 GM 6.6L Duramax 2500HD / 3500HD
Carrillo D7001 High-Performance Piston Set | 01-18 GM 6.6L Duramax 2500HD / 3500HD
- Call 208-719-7400 for Availablity
$2,469.60
View Details
Item In Cart 01-16 GM 2500/3500HD 6.6L Duramax Mahle Right Hand Side Head Gasket Grade A 54580
01-16 GM 2500/3500HD 6.6L Duramax Mahle Right Hand Side Head Gasket Grade A 54580
In Stock. Ships in 1 Business Day!
$80.00
View Details
Item In Cart 01-13 Gm 2500/3500HD 6.6L Duramax Mahle Cam Shaft Bearing Set SH-1999S
01-13 Gm 2500/3500HD 6.6L Duramax Mahle Cam Shaft Bearing Set SH-1999S
- Ships in 3-5 Business Days
$103.00
View Details
Item In Cart  06-10 GM 6.6L Duramax 2500HD / 3500HD Fluidampr Harmonic Balancer
06-10 GM 6.6L Duramax 2500HD / 3500HD Fluidampr Harmonic Balancer
In Stock. Ships in 1 Business Day!
$528.70
View Details
Item In Cart Fingers FOBCP Oval Bowl Pistons | 01-16 GM 6.6 Duramax
Fingers FOBCP Oval Bowl Pistons | 01-16 GM 6.6 Duramax
- Ships from Manufacturer in 3-4 weeks
$2,150.00
View Details
Item In Cart Industrial  PDM-DMXHP Stage 2 Race Camshaft w/ Key | 01-16 6.6L Duramax 2500HD / 3500HD
Industrial PDM-DMXHP Stage 2 Race Camshaft w/ Key | 01-16 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$815.79
View Details
Item In Cart 06-15 GM 6.6L Duramax 2500HD / 3500HD  Merchant Glow Plug
06-15 GM 6.6L Duramax 2500HD / 3500HD Merchant Glow Plug
In Stock. Ships in 1 Business Day!
$36.95
View Details
Item In Cart Wagler WCPC66125.1 Billet Competition Water Pump | 06-16 GM 6.6L Duramax 2500HD / 3500HD  LBZ/LMM/LML
Wagler WCPC66125.1 Billet Competition Water Pump | 06-16 GM 6.6L Duramax 2500HD / 3500HD LBZ/LMM/LML
- Call 208-719-7400 for Availablity
$850.00
View Details
Item In Cart 04.5-16 GM 2500/3500HD 6.6L Duramax LLY/LBZ/LMM/LML ARP 8MM 12pt Valve Cover Bolt Kit
04.5-16 GM 2500/3500HD 6.6L Duramax LLY/LBZ/LMM/LML ARP 8MM 12pt Valve Cover Bolt Kit
In Stock. Ships in 1 Business Day!
$120.00
View Details
Item In Cart ARP Ultra-Torque Fastener Assembly Lube (10 oz)
ARP Ultra-Torque Fastener Assembly Lube (10 oz)
In Stock. Ships in 1 Business Day!
$17.49
View Details
Item In Cart 01-16 GM 6.6L Duramax 2500HD / 3500HD  ARP Head Stud Kit
01-16 GM 6.6L Duramax 2500HD / 3500HD ARP Head Stud Kit
In Stock. Ships in 1 Business Day!
$630.00 $615.00 Sale
View Details
Item In Cart ARP-900-0400
ARP-900-0400
In Stock. Ships in 1 Business Day!
$49.99
View Details
Item In Cart 01-16 GM 6.6L Duramax 2500HD / 3500HD  Gator Head Stud Kit
01-16 GM 6.6L Duramax 2500HD / 3500HD Gator Head Stud Kit
In Stock. Ships in 1 Business Day!
$524.99
View Details
Item In Cart Wehrli 100385 Lower Oil Pan w/ Twin Turbo Drain Fitting | 11-16 GM 6.6L Duramax 2500HD / 3500HD  LML
Wehrli 100385 Lower Oil Pan w/ Twin Turbo Drain Fitting | 11-16 GM 6.6L Duramax 2500HD / 3500HD LML
- In Stock. Ships in 3-5 business days.
$212.43
View Details
Item In Cart Wehrli 100442 Billet Oil Fill Tube Cap | 01-22 GM GM 6.6L Duramax 2500HD / 3500HD  LB7/LLY/LBZ/LMM/LML/L5P Clear Anodized
Wehrli 100442 Billet Oil Fill Tube Cap | 01-22 GM GM 6.6L Duramax 2500HD / 3500HD LB7/LLY/LBZ/LMM/LML/L5P Clear Anodized
- In Stock. Ships in 3-5 business days.
$49.47
View Details
Item In Cart Fleece FPE-DMAX-OC-RED Oil Cap Red | 01-16 GM 6.6L Duramax 2500HD / 3500HD
Fleece FPE-DMAX-OC-RED Oil Cap Red | 01-16 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$39.99
View Details
Item In Cart Fleece FPE-DMAX-OC-BLU Oil Cap Blue | 01-16 GM 6.6L Duramax 2500HD / 3500HD
Fleece FPE-DMAX-OC-BLU Oil Cap Blue | 01-16 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$39.99
View Details
Item In Cart Fleece FPE-DMAX-OC-BLK Oil Cap Black | 01-16 GM 6.6L Duramax 2500HD / 3500HD
Fleece FPE-DMAX-OC-BLK Oil Cap Black | 01-16 GM 6.6L Duramax 2500HD / 3500HD
- Ships in 3-5 Business Days
$39.99
View Details
Item In Cart 01-16 GM 6.6L Duramax 2500HD / 3500HD  130lb Valve Spring Kit 44B801
01-16 GM 6.6L Duramax 2500HD / 3500HD 130lb Valve Spring Kit 44B801
- Ships in 3-5 Business Days
$678.24
View Details
Item In Cart 11-16 GM 6.6L Duramax 2500HD / 3500HD LML  Wehrli Heavy Duty Engine Mounts
11-16 GM 6.6L Duramax 2500HD / 3500HD LML Wehrli Heavy Duty Engine Mounts
- Ships in 25-30 Business Day Lead Time.
$429.00
View Details
Item In Cart 01-16 GM 2500/3500HD 6.6L Duramax PPE Head Stud Kit 118034300
01-16 GM 2500/3500HD 6.6L Duramax PPE Head Stud Kit 118034300
In Stock. Ships in 1 Business Day!
$539.99
View Details
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  • GM Duramax
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Categories

  • Duramax
    • 2020-2022 Duramax L5P
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2017-2019 Duramax L5P
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
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      • Exterior
      • View More
    • 2011-2016 Duramax LML
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2007.5-2010 Duramax LMM
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2006-2007 Duramax LBZ
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2004.5-2005 Duramax LLY
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2001-2004 Duramax LB7
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
  • Powerstroke
    • 2020-2022 6.7L Powerstroke
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2017-2019 6.7L Powerstroke
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2011-2016 6.7L Powerstroke
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2008-2010 6.4L Powerstroke
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2003-2007 6.0L Powerstroke
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
  • Cummins
    • 2019-2022 6.7L Cummins
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2013-2018 6.7L Cummins
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
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      • Tonneau Covers
      • Exterior
      • View More
    • 2010-2012 6.7L Cummins
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2007.5-2009 6.7L Cummins
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2004.5-2007 5.9L Cummins
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More
    • 2003-2004 5.9L Cummins
      • Engine Upgrades
      • Exhaust Kits
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      • View More

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