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Duramax Parts

High-quality Duramax performance parts are a must if you’re trying to get more out of your Chevy or GMC Duramax engine. That’s why Powerhouse Diesel stocks a wide range of Duramax parts engineered specifically to Get the most out of your truck. When you choose to shop with us, you can take advantage of our extensive expertise and experience to help you find the ideal solution for what you need from your engine.

Not only do we have a comprehensive inventory of Duramax diesel parts, but also we offer the highest levels of customer service. Our team is made up of gearheads just like you, meaning we spend as much time under the hood as anyone. You can trust us to guide you in the right direction, so you’ll have the correct parts that make the most sense for your needs.

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    Fleece 11-16 6.6L LML Duramax Truck PowerFlo In-tank Lift Pump (Short Bed Only)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $1,161.00
    $1,161.00 - $1,161.00
    $1,161.00

    Fleece Performance Model FPE-34563Fleece 11-16 6.6L LML Duramax Truck PowerFlo In-tank Lift Pump (Short Bed Only)User 1

    $0.00 - $0.00
    $0.00
    $1,161.00
    $1,161.00 - $1,161.00
    $1,161.00
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    Exergy 11-16 Chevrolet Duramax 6.6L LML New 60% Over Injector - Set of 8

    Exergy
    $7,694.00 - $7,694.00
    $7,694.00
    $7,694.00 - $7,694.00
    $7,694.00

    Exergy Model E02 10508Exergy 11-16 Chevrolet Duramax 6.6L LML New 60% Over Injector - Set of 8 8 60% Over Modified Injectors Injector Coppers and ...

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    $7,694.00 - $7,694.00
    $7,694.00
    $7,694.00 - $7,694.00
    $7,694.00
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    Banks Power 11-16 Chevy/GMC 6.6L Duramax Techni-Cooler System w/ Boost Tubes

    Banks Power
    $2,953.00
    $2,953.00 - $2,953.00
    $2,953.00
    $2,658.00
    $2,658.00 - $2,658.00
    $2,658.00

    Steady power output even under extreme temperatures. Adds +95% core volume and 69% greater inlet area over stock. High-efficiency custom-machined d...

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    $2,953.00
    $2,953.00 - $2,953.00
    $2,953.00
    $2,658.00
    $2,658.00 - $2,658.00
    $2,658.00
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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
    $430.00
    $430.00 - $430.00
    $430.00

    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
    $430.00
    $430.00 - $430.00
    $430.00
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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
    $1,163.00
    $1,163.00 - $1,163.00
    $1,163.00

    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
    $1,163.00
    $1,163.00 - $1,163.00
    $1,163.00
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    Wehrli 2004.5-2005 LLY Duramax 4in Intake Kit with Air Box

    Wehrli
    $0.00 - $0.00
    $0.00
    $768.00
    $768.00 - $768.00
    $768.00

    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
    $768.00
    $768.00 - $768.00
    $768.00
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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
    $69.00
    $69.00 - $69.00
    $69.00

    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
    $69.00
    $69.00 - $69.00
    $69.00
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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
    $102.00
    $102.00 - $102.00
    $102.00

    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
    $102.00
    $102.00 - $102.00
    $102.00
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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
    $102.00
    $102.00 - $102.00
    $102.00

    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
    $102.00
    $102.00 - $102.00
    $102.00
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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
    $102.00
    $102.00 - $102.00
    $102.00

    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
    $102.00
    $102.00 - $102.00
    $102.00
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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
    $102.00
    $102.00 - $102.00
    $102.00

    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
    $102.00
    $102.00 - $102.00
    $102.00
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    GM Remanufactured Modified 42 CP3 Injection Pump For 2004.5-2005 6.6L LLY II Duramax Industrial Injection

    Industrial Injection
    $1,658.00
    $1,658.00 - $1,658.00
    $1,658.00
    $1,608.00
    $1,608.00 - $1,608.00
    $1,608.00

    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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    $1,658.00
    $1,658.00 - $1,658.00
    $1,658.00
    $1,608.00
    $1,608.00 - $1,608.00
    $1,608.00
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    Industrial Injection Garrett LLY Duramax Vane Position Sensor Adapter

    Industrial Injection
    $111.00 - $111.00
    $111.00
    $111.00 - $111.00
    $111.00

    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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    $111.00 - $111.00
    $111.00
    $111.00 - $111.00
    $111.00
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    GM Remanufactured Modified 42 CP3 Injection Pump For 2004.5-2005 6.6L LLY Duramax Industrial Injection

    Industrial Injection
    $2,034.00
    $2,034.00 - $2,034.00
    $2,034.00
    $1,973.00
    $1,973.00 - $1,973.00
    $1,973.00

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

    View full details
    $2,034.00
    $2,034.00 - $2,034.00
    $2,034.00
    $1,973.00
    $1,973.00 - $1,973.00
    $1,973.00
    Save 3% Save %
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    GM Remanufactured Dragon Fire 85 CP3 Injection Pump For 2004.5-2005 6.6L LLY Duramax Industrial Injection

    Industrial Injection
    $2,543.00
    $2,543.00 - $2,543.00
    $2,543.00
    $2,466.00
    $2,466.00 - $2,466.00
    $2,466.00

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

    View full details
    $2,543.00
    $2,543.00 - $2,543.00
    $2,543.00
    $2,466.00
    $2,466.00 - $2,466.00
    $2,466.00
    Save 3% Save %
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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
    $2,180.00
    $2,180.00 - $2,180.00
    $2,180.00
    $2,114.00
    $2,114.00 - $2,114.00
    $2,114.00

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

    View full details
    $2,180.00
    $2,180.00 - $2,180.00
    $2,180.00
    $2,114.00
    $2,114.00 - $2,114.00
    $2,114.00
    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
    $2,761.00
    $2,761.00 - $2,761.00
    $2,761.00
    $2,678.00
    $2,678.00 - $2,678.00
    $2,678.00

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

    View full details
    $2,761.00
    $2,761.00 - $2,761.00
    $2,761.00
    $2,678.00
    $2,678.00 - $2,678.00
    $2,678.00
    Save 3% Save %
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    GM Remanufactured Double Dragon 120 CP3 Injection Pump For 2004.5-2005 6.6L LLY Duramax Industrial Injection

    Industrial Injection
    $3,051.00
    $3,051.00 - $3,051.00
    $3,051.00
    $2,960.00
    $2,960.00 - $2,960.00
    $2,960.00

    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
    $3,051.00
    $3,051.00 - $3,051.00
    $3,051.00
    $2,960.00
    $2,960.00 - $2,960.00
    $2,960.00
    Save 3% Save %
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    GM Remanufactured Dragonfly Injector For 2004.5-2005 6.6L LLY Duramax 22LPM Industrial Injection

    Industrial Injection
    $550.00
    $550.00 - $550.00
    $550.00
    $533.00
    $533.00 - $533.00
    $533.00

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

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    $550.00
    $550.00 - $550.00
    $550.00
    $533.00
    $533.00 - $533.00
    $533.00
    Save 3% Save %
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    GM Remanufactured Injector For 2004.5-2005 6.6L LLY Duramax 33LPM Industrial Injection

    Industrial Injection
    $645.00
    $645.00 - $645.00
    $645.00
    $626.00
    $626.00 - $626.00
    $626.00

    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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    $645.00
    $645.00 - $645.00
    $645.00
    $626.00
    $626.00 - $626.00
    $626.00
    Save 3% Save %
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    GM Remanufactured Injector For 2004.5-2005 6.6L LLY Duramax 29LPM Industrial Injection

    Industrial Injection
    $645.00
    $645.00 - $645.00
    $645.00
    $626.00
    $626.00 - $626.00
    $626.00

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

    View full details
    $645.00
    $645.00 - $645.00
    $645.00
    $626.00
    $626.00 - $626.00
    $626.00
    Save 3% Save %
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    GM Remanufactured Injector For 2004.5-2005 6.6L LLY Duramax 38LPM Industrial Injection

    Industrial Injection
    $683.00
    $683.00 - $683.00
    $683.00
    $663.00
    $663.00 - $663.00
    $663.00

    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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    $683.00
    $683.00 - $683.00
    $683.00
    $663.00
    $663.00 - $663.00
    $663.00
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    GM Remanufactured Injector For 2004.5-2005 6.6L LLY Duramax 25LPM Industrial Injection

    Industrial Injection
    $550.00
    $550.00 - $550.00
    $550.00
    $533.00
    $533.00 - $533.00
    $533.00

    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
    $550.00
    $550.00 - $550.00
    $550.00
    $533.00
    $533.00 - $533.00
    $533.00
    Save 3% Save %
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    GM Remanufactured Injector For 2004.5-2005 6.6L LLY Duramax 23LPM Industrial Injection

    Industrial Injection
    $550.00
    $550.00 - $550.00
    $550.00
    $533.00
    $533.00 - $533.00
    $533.00

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

    View full details
    $550.00
    $550.00 - $550.00
    $550.00
    $533.00
    $533.00 - $533.00
    $533.00
    Save 3% Save %
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YOUR ALL-IN-ONE SOURCE FOR DURAMAX PERFORMANCE UPGRADES

Having the right parts makes all the difference when you’re working on your engine, and we’re your total resource for everything you need. We have a wide assortment of Duramax parts for sale from top manufacturers including Kryptonite, ndustrial njectio, smeding, Banks Power and more. We give you a huge selection of options to choose from, meaning you’re more than likely to find exactly what you’re looking for when you need Duramax aftermarket parts.

From small parts for a quick fix to complete systems for a total overhaul, we have a solution for every need. Our range of products for Duramax engines includes:

  • Transmissions
  • Injection pumps
  • Turbochargers and exhausts
  • Wiring harnesses
  • Radiator hoses
  • Intercoolers
  • Fuel systems
  • And more

SHOP POWERHOUSE DIESEL

Whether you’re trying to squeeze more power out of your engine or keep it maintained to extend its lifespan, there’s no better place to turn than Powerhouse Diesel. From routine maintenance to full-on performance upgrades, our selection of components, tools and accessories make it possible to get the work done and give you the performance you’ve always wanted.

Our team here understands what you’re looking for and why. We’re just as passionate about trucks as you are, and we’ll take the time to share our expertise so you can find the perfect fit for your ride. If you want to learn more about everything we have to offer, take a moment to browse through our product listings on this page or reach out to one of our helpful representatives today.

Powerhouse Diesel