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LLY Duramax Parts

One of the biggest differences between the LLY and its predecessor, the LB7, is that the LLY is fitted with emissions controlling technology. Now equipped with a faster spooling Turbocharger which created more torque sooner with less emissions. Powerhouse Diesel has a huge selection of LLY Duramax parts to help you boost its performance, extend its lifespan and ensure it remains in good working order for as long as possible.

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    Firestone Level Command Dual Mechanical Height Sensor Kit (WR17602017)

    Firestone
    $551.69
    $551.69 - $551.69
    $551.69
    $419.75
    $419.75 - $419.75
    $419.75

    These Firestone dual automatic air command system kits inflate both air helper springs individually. Gain total control over your air springs by pi...

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    $551.69
    $551.69 - $551.69
    $551.69
    $419.75
    $419.75 - $419.75
    $419.75
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    BD Diesel Remote Fuel Filter Replacement Cartridge - 1050060 Kit

    BD Diesel
    $38.75 - $38.75
    $38.75
    $40.95
    $40.95 - $40.95
    $40.95

    The OEM fuel filter was designed to provide adequate flow and filtration at the stock horsepower level, but simply does not have enough surface are...

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    $38.75 - $38.75
    $38.75
    $40.95
    $40.95 - $40.95
    $40.95
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    BD Diesel Common Rail Fuel Relief Valve Shim Kit - Chevy 04.5-09 LLY/LBZ/LMM Dodge 2008-2010 6.7L

    BD Diesel
    $27.11 - $27.11
    $27.11
    $27.95
    $27.95 - $27.95
    $27.95

    BD Diesel rail pressure relief kits are an inexpensive way to allow for adjustments of the rail pressure relief valves on Duramax LLY/LBZ engines. ...

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    $27.11 - $27.11
    $27.11
    $27.95
    $27.95 - $27.95
    $27.95
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    Wehrli 2004.5-05 Chevrolet LLY 6.6L Duramax Passenger Side 3in Intercooler Pipe

    Wehrli
    $0.00 - $0.00
    $0.00
    $295.85
    $295.85 - $295.85
    $295.85

    Wehrli Model WCF100355 The 3" High Flow Passenger Side Intercooler Pipe for 2004.5-2005 LLY Duramax replaces the 2.5" factory aluminum pipe with a ...

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    $0.00 - $0.00
    $0.00
    $295.85
    $295.85 - $295.85
    $295.85
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    Wehrli 04.5-05 LLY Duramax 4in Intake Kit with Air Box Stage 2

    Wehrli
    $0.00 - $0.00
    $0.00
    $800.25
    $800.25 - $800.25
    $800.25

    Wehrli Model WCF100301 WCFab 2004.5-2005 GM LLY 6.6L Duramax Stage 2 Intake Kit with Air Box. This high flow, fabricated aluminum intake pipe and a...

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    $0.00 - $0.00
    $0.00
    $800.25
    $800.25 - $800.25
    $800.25
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    Wehrli 2004.5-2005 LLY Duramax 4in Intake Kit with Air Box

    Wehrli
    $0.00 - $0.00
    $0.00
    $528.65
    $528.65 - $528.65
    $528.65

    Wehrli Model WCF100191 WCFab 4" Intake Kit with Air Box for 2004.5-2005 LLY 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD ...

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    $0.00 - $0.00
    $0.00
    $528.65
    $528.65 - $528.65
    $528.65
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    Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY Turbo Vane Position Sensor Adapter Harness

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $46.99
    $46.99 - $46.99
    $46.99

    Fleece Performance Model FPE-HAR-DMAX-VPS-ADPTOur Fleece Performance adapter harness allows the 2004.5-2005 LLY Duramax to run the updated turbo va...

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    $0.00 - $0.00
    $0.00
    $46.99
    $46.99 - $46.99
    $46.99
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    Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 4 & 5)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $69.99
    $69.99 - $69.99
    $69.99

    Fleece Performance Model FPE-FL-LLY-45LLY Duramax High Pressure Injection Line (Number 4 and Number 5). Replacement high pressure fuel lines from F...

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    $0.00 - $0.00
    $0.00
    $69.99
    $69.99 - $69.99
    $69.99
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    Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 3 & 6)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $69.99
    $69.99 - $69.99
    $69.99

    Fleece Performance Model FPE-FL-LLY-36LLY Duramax High Pressure Injection Line (Number 3 and Number 6). Replacement high pressure fuel lines from F...

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    $0.00 - $0.00
    $0.00
    $69.99
    $69.99 - $69.99
    $69.99
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    Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 2 & 7)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $69.99
    $69.99 - $69.99
    $69.99

    Fleece Performance Model FPE-FL-LLY-27LLY Duramax High Pressure Injection Line (Number 2 and Number 7). Replacement high pressure fuel lines from F...

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    $0.00 - $0.00
    $0.00
    $69.99
    $69.99 - $69.99
    $69.99
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    Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 1 & 8)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $69.99
    $69.99 - $69.99
    $69.99

    Fleece Performance Model FPE-FL-LLY-18LLY Duramax High Pressure Injection Line (Number 1 and Number 8). Replacement high pressure fuel lines from F...

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    $0.00 - $0.00
    $0.00
    $69.99
    $69.99 - $69.99
    $69.99
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    GM Remanufactured Modified 42 CP3 Injection Pump For 2004.5-2005 6.6L LLY II Duramax Industrial Injection

    Industrial Injection
    $1,140.95
    $1,140.95 - $1,140.95
    $1,140.95
    $1,106.72
    $1,106.72 - $1,106.72
    $1,106.72

    Industrial Injection Model: 0986437308SHOSEIndustrial Injection Reman pumps are a little different than others in the fact that we only use brand n...

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    $1,140.95
    $1,140.95 - $1,140.95
    $1,140.95
    $1,106.72
    $1,106.72 - $1,106.72
    $1,106.72
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    Industrial Injection Garrett LLY Duramax Vane Position Sensor Adapter

    Industrial Injection
    $77.64 - $77.64
    $77.64
    $77.64 - $77.64
    $77.64

    Industrial Injection Model: 771864-0001Garrett vane position adapter allows the Garrett 848212-5001S turbocharger to be installed on your 2004.5-20...

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    $77.64 - $77.64
    $77.64
    $77.64 - $77.64
    $77.64
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    GM Remanufactured Modified 42 CP3 Injection Pump For 2004.5-2005 6.6L LLY Duramax Industrial Injection

    Industrial Injection
    $1,399.95
    $1,399.95 - $1,399.95
    $1,399.95
    $1,357.95
    $1,357.95 - $1,357.95
    $1,357.95

    Industrial Injection Model: 0986437308SHOBosch OEM reman CP3s are the pinnacle of what you should expect out of a CP3 injection pump. Each injectio...

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    $1,399.95
    $1,399.95 - $1,399.95
    $1,399.95
    $1,357.95
    $1,357.95 - $1,357.95
    $1,357.95
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    GM Remanufactured Dragon Fire 85 CP3 Injection Pump For 2004.5-2005 6.6L LLY II Duramax Industrial Injection

    Industrial Injection
    $1,499.95
    $1,499.95 - $1,499.95
    $1,499.95
    $1,454.95
    $1,454.95 - $1,454.95
    $1,454.95

    Industrial Injection Model: 0986437308DFSEIndustrial Injection Reman pumps are a little different than others in the fact that we only use brand ne...

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    $1,499.95
    $1,499.95 - $1,499.95
    $1,499.95
    $1,454.95
    $1,454.95 - $1,454.95
    $1,454.95
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    GM Remanufactured Dragon Fire 85 CP3 Injection Pump For 2004.5-2005 6.6L LLY Duramax Industrial Injection

    Industrial Injection
    $1,749.95
    $1,749.95 - $1,749.95
    $1,749.95
    $1,697.45
    $1,697.45 - $1,697.45
    $1,697.45

    Industrial Injection Model: 0986437308DFBosch OEM reman CP3s are the pinnacle of what you should expect out of a CP3 injection pump. Each injection...

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    $1,749.95
    $1,749.95 - $1,749.95
    $1,749.95
    $1,697.45
    $1,697.45 - $1,697.45
    $1,697.45
    Save 3% Save %
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    GM Remanufactured Double Dragon 120 CP3 Injection Pump For 2004.5-2005 6.6L LLY II Duramax Industrial Injection

    Industrial Injection
    $1,899.95
    $1,899.95 - $1,899.95
    $1,899.95
    $1,842.95
    $1,842.95 - $1,842.95
    $1,842.95

    Industrial Injection Model: 0986437308DDSEIndustrial Injection Reman pumps are a little different than others in the fact that we only use brand ne...

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    $1,899.95
    $1,899.95 - $1,899.95
    $1,899.95
    $1,842.95
    $1,842.95 - $1,842.95
    $1,842.95
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    GM Remanufactured Double Dragon 120 CP3 Injection Pump For 2004.5-2005 6.6L LLY Duramax Industrial Injection

    Industrial Injection
    $2,099.95
    $2,099.95 - $2,099.95
    $2,099.95
    $2,036.95
    $2,036.95 - $2,036.95
    $2,036.95

    Industrial Injection Model: 0986437308DDBosch OEM reman CP3s are the pinnacle of what you should expect out of a CP3 injection pump. Each injection...

    View full details
    $2,099.95
    $2,099.95 - $2,099.95
    $2,099.95
    $2,036.95
    $2,036.95 - $2,036.95
    $2,036.95
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    GM Remanufactured Dragonfly Injector For 2004.5-2005 6.6L LLY Duramax 22LPM Industrial Injection

    Industrial Injection
    $377.95
    $377.95 - $377.95
    $377.95
    $366.61
    $366.61 - $366.61
    $366.61

    Industrial Injection Model: 0986435504SEDFLYThe Industrial Injection 15 percent over Dragon Fly Injectors have been extrude honed and balanced to a...

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    $377.95
    $377.95 - $377.95
    $377.95
    $366.61
    $366.61 - $366.61
    $366.61
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    GM Remanufactured Injector For 2004.5-2005 6.6L LLY Duramax 33LPM Industrial Injection

    Industrial Injection
    $443.95
    $443.95 - $443.95
    $443.95
    $430.63
    $430.63 - $430.63
    $430.63

    Industrial Injection Model: 0986435504SE-R5The Industrial Injection 75 Percent over Race 5 Injectors have been extrude honed and balanced to a perf...

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    $443.95
    $443.95 - $443.95
    $443.95
    $430.63
    $430.63 - $430.63
    $430.63
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    GM Remanufactured Injector For 2004.5-2005 6.6L LLY Duramax 29LPM Industrial Injection

    Industrial Injection
    $443.95
    $443.95 - $443.95
    $443.95
    $430.63
    $430.63 - $430.63
    $430.63

    Industrial Injection Model: 0986435504SE-R4The Industrial Injection 50 percent over Race 4 Injectors have been extrude honed and balanced to a perf...

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    $443.95
    $443.95 - $443.95
    $443.95
    $430.63
    $430.63 - $430.63
    $430.63
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    GM Remanufactured Injector For 2004.5-2005 6.6L LLY Duramax 38LPM Industrial Injection

    Industrial Injection
    $443.95
    $443.95 - $443.95
    $443.95
    $430.63
    $430.63 - $430.63
    $430.63

    Industrial Injection Model: 0986435504SE-R6The Industrial Injection 100 percent over Race 6 Injectors have been extrude honed and balanced to a per...

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    $443.95
    $443.95 - $443.95
    $443.95
    $430.63
    $430.63 - $430.63
    $430.63
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    GM Remanufactured Injector For 2004.5-2005 6.6L LLY Duramax 25LPM Industrial Injection

    Industrial Injection
    $416.95
    $416.95 - $416.95
    $416.95
    $404.44
    $404.44 - $404.44
    $404.44

    Industrial Injection Model: 0986435504SE-R2The Industrial Injection 30 percent over Race 2 Injectors have been extrude honed and balanced to a perf...

    View full details
    $416.95
    $416.95 - $416.95
    $416.95
    $404.44
    $404.44 - $404.44
    $404.44
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    GM Remanufactured Injector For 2004.5-2005 6.6L LLY Duramax 23LPM Industrial Injection

    Industrial Injection
    $377.95
    $377.95 - $377.95
    $377.95
    $366.61
    $366.61 - $366.61
    $366.61

    Industrial Injection Model: 0986435504SE-R1The Industrial Injection 20 percent over Race 1 Injectors have been extrude honed and balanced to a perf...

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    $377.95
    $377.95 - $377.95
    $377.95
    $366.61
    $366.61 - $366.61
    $366.61
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BUILT FOR PERFORMANCE

This second gen Duramax is now equipped with a faster spooling Turbocharger which created more torque sooner with less emissions. Powerhouse Diesel has a huge selection of LLY Duramax parts to help you boost its performance, extend its lifespan and ensure it remains in good working order for as long as possible.

Here at Powerhouse Diesel, our inventory of LLY duramax performance parts and accessories includes just about everything you could need. We have a huge range of options from many of the top manufacturers in the industry, including Fleece, Kryptonite, DDP and Rough Country. This is critical because when you’re trying to make improvements to how your engine performs, you need to have the highest-quality components. Without the best LLY upgrades, there’s a good chance you’ll continue to have issues with your engine.

Our selection of LLY duramax parts can help you no matter what you’re looking for from your truck. Whether you’re trying to boost efficiency, get more raw power or just need to perform routine maintenance, we have something to help you. Here you’ll find LLY accessories and parts including:

  • Suspension parts
  • Turbochargers
  • Exhausts
  • Injectors
  • Intakes and cooling system parts
  • Injection pumps and lift pumps
  • And more

LET US SHOW YOU THE WAY

Our expertise and knowledge make us the best place to look for parts to upgrade your LLY Duramax. When you shop with us, our experienced team can help you narrow down your search and find the components that are perfect for whatever result you want. We’ll answer your questions and show you all your options so you can get the most from your engine. If you’re ready to learn more about what we have in stock and what it can do for you, browse through our products or get in touch with us today.

Powerhouse Diesel