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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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    Alliant Power 01-04.5 Chevrolet GM 6.6L Duramax LB7 Injection Line - Cylinders 4 and 5

    Industrial Injection
    $85.56 - $85.56
    $85.56
    $85.56 - $85.56
    $85.56

    Model: AP637222001-04.5 Chevrolet GM 6.6L Duramax LB7 Injection Line - Cylinders 4 and 5This Part Fits: Year Make Model Submodel 2001-2004 C...

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    $85.56 - $85.56
    $85.56
    $85.56 - $85.56
    $85.56
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    Alliant Power 01-04.5 Chevrolet GM 6.6L Duramax LB7 Injection Line - Cylinders 3 and 6

    Industrial Injection
    $85.56 - $85.56
    $85.56
    $85.56 - $85.56
    $85.56

    Alliant Power Model: AP6372101-04.5 Chevrolet GM 6.6L Duramax LB7 Injection Line - Cylinders 3 and 6This Part Fits: Year Make Model Submodel ...

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    $85.56 - $85.56
    $85.56
    $85.56 - $85.56
    $85.56
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    Alliant Power 01-04.5 Chevrolet GM 6.6L Duramax LB7 Injection Line - Cylinders 2 and 7

    Industrial Injection
    $85.56 - $85.56
    $85.56
    $85.56 - $85.56
    $85.56

    Model: AP637232001-04.5 Chevrolet GM 6.6L Duramax LB7 Injection Line - Cylinders 2 and 7This Part Fits: Year Make Model Submodel 2001-2004 C...

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    $85.56 - $85.56
    $85.56
    $85.56 - $85.56
    $85.56
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    Alliant Power 01-04.5 Chevrolet GM 6.6L Duramax LB7 Injection Line - Cylinders 1 and 8

    Industrial Injection
    $85.56 - $85.56
    $85.56
    $85.56 - $85.56
    $85.56

    Model: AP63720Alliant Power 01-04.5 Chevrolet GM 6.6L Duramax LB7 Injection Line - Cylinders 1 and 8This Part Fits: Year Make Model Submodel ...

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    $85.56 - $85.56
    $85.56
    $85.56 - $85.56
    $85.56
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    Industrial Injection 01-04 LB7 Duramax Stock Reman Bosch Injectors, Lines & Install Kit

    Industrial Injection
    $2,908.95
    $2,908.95 - $2,908.95
    $2,908.95
    $2,821.68
    $2,821.68 - $2,821.68
    $2,821.68

    Industrial Injection Model: 412603 Includes: 8 Bosch Reman Injectors 2 Lower Valve Cover Gaskets 8 GM High Pressure Fuel Lines Upper Radiator Pipe...

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    $2,908.95
    $2,908.95 - $2,908.95
    $2,908.95
    $2,821.68
    $2,821.68 - $2,821.68
    $2,821.68
    Save 3% Save %
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    GM Extrude Honed injection Nozzle for 01-04 LB7 6.6L Duramax 39 LPM Industrial Injection

    Industrial Injection
    $118.95
    $118.95 - $118.95
    $118.95
    $115.38
    $115.38 - $115.38
    $115.38

    Industrial Injection Model: 0433175275-R5The Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out ...

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    $118.95
    $118.95 - $118.95
    $118.95
    $115.38
    $115.38 - $115.38
    $115.38
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    GM Extrude Honed injection Nozzle for 01-04 LB7 6.6L Duramax 44 LPM Industrial Injection

    Industrial Injection
    $118.95
    $118.95 - $118.95
    $118.95
    $115.38
    $115.38 - $115.38
    $115.38

    Industrial Injection Model: 0433175275-R6The Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out ...

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    $118.95
    $118.95 - $118.95
    $118.95
    $115.38
    $115.38 - $115.38
    $115.38
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    GM Extrude Honed injection Nozzle for 01-04 LB7 6.6L Duramax 33 LPM Industrial Injection

    Industrial Injection
    $118.95
    $118.95 - $118.95
    $118.95
    $115.38
    $115.38 - $115.38
    $115.38

    Industrial Injection Model: 0433175275-R4The Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out ...

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    $118.95
    $118.95 - $118.95
    $118.95
    $115.38
    $115.38 - $115.38
    $115.38
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    GM Extrude Honed injection Nozzle for 01-04 LB7 6.6L Duramax 31 LPM Industrial Injection

    Industrial Injection
    $85.95
    $85.95 - $85.95
    $85.95
    $83.37
    $83.37 - $83.37
    $83.37

    Industrial Injection Model: 0433175275-R3The Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out ...

    View full details
    $85.95
    $85.95 - $85.95
    $85.95
    $83.37
    $83.37 - $83.37
    $83.37
    Save 3% Save %
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    GM Extrude Honed injection Nozzle for 01-04 LB7 6.6L Duramax 29 LPM Industrial Injection

    Industrial Injection
    $85.95
    $85.95 - $85.95
    $85.95
    $83.37
    $83.37 - $83.37
    $83.37

    Industrial Injection Model: 0433175275-R2The Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out ...

    View full details
    $85.95
    $85.95 - $85.95
    $85.95
    $83.37
    $83.37 - $83.37
    $83.37
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    GM Extrude Honed injection Nozzle for 01-04 LB7 6.6L Duramax 50 LPM Industrial Injection

    Industrial Injection
    $85.95
    $85.95 - $85.95
    $85.95
    $83.37
    $83.37 - $83.37
    $83.37

    Industrial Injection Model: 0433175275DFLYThe Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out...

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    $85.95
    $85.95 - $85.95
    $85.95
    $83.37
    $83.37 - $83.37
    $83.37
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    Gm Injector Screw In Cups For 2001-2004.5 6.6L LB7 Duramax Industrial Injection

    Industrial Injection
    $971.95
    $971.95 - $971.95
    $971.95
    $942.79
    $942.79 - $942.79
    $942.79

    Industrial Injection Model: PDM-07020The factory injector cups are known for leaking, pitting and seizing themselves to the injectors in your LB7. ...

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    $971.95
    $971.95 - $971.95
    $971.95
    $942.79
    $942.79 - $942.79
    $942.79
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    GM Injector Hold Downs For 01-04 LB7 Duramax Billet With ARP Bolts Industrial Injection

    Industrial Injection
    $767.95
    $767.95 - $767.95
    $767.95
    $744.91
    $744.91 - $744.91
    $744.91

    Industrial Injection Model: PDM-083772001-04 LB7 Billet Injector Hold Downs w/Arp Bolts And Install HardwareNew addition to the Industrial Injectio...

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    $767.95
    $767.95 - $767.95
    $767.95
    $744.91
    $744.91 - $744.91
    $744.91
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    Gm Injector Screw In Cups For 2001-2004.5 6.6L LB7 Duramax Includes Install Tool and Hardware Industrial Injection

    Industrial Injection
    $1,406.95
    $1,406.95 - $1,406.95
    $1,406.95
    $1,364.74
    $1,364.74 - $1,364.74
    $1,364.74

    Industrial Injection Model: PDM-07021KThe factory injector cups are known for leaking, pitting and seizing themselves to the injectors in your LB7....

    View full details
    $1,406.95
    $1,406.95 - $1,406.95
    $1,406.95
    $1,364.74
    $1,364.74 - $1,364.74
    $1,364.74
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    Industrial Injection 01-04 Chevrolet Genuine OE 6.6L Duramax LB7 R6 100% Over Injector

    Industrial Injection
    $465.95
    $465.95 - $465.95
    $465.95
    $451.97
    $451.97 - $451.97
    $451.97

    Industrial Injection Model: 0986435502-R6 Performance LB7 Duramax Injector- PRICED EACH NOTE: Fuel Lines MUST be replaced to retain warranty! Indu...

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    $465.95
    $465.95 - $465.95
    $465.95
    $451.97
    $451.97 - $451.97
    $451.97
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    Industrial Injection 01-04 Chevrolet Genuine OE 6.6L Duramax LB7 R5 75% Over Injector

    Industrial Injection
    $429.95
    $429.95 - $429.95
    $429.95
    $417.05
    $417.05 - $417.05
    $417.05

    Industrial Injection Model: 0986435502-R5 Performance LB7 Duramax Injector- PRICED EACH NOTE: Fuel Lines MUST be replaced to retain warranty! Indu...

    View full details
    $429.95
    $429.95 - $429.95
    $429.95
    $417.05
    $417.05 - $417.05
    $417.05
    Save 3% Save %
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    Industrial Injection 01-04 Chevrolet Genuine OE 6.6L Duramax LB7 R4 50% Over Injector

    Industrial Injection
    $392.95
    $392.95 - $392.95
    $392.95
    $381.16
    $381.16 - $381.16
    $381.16

    Industrial Injection Model: 0986435502-R4 Performance LB7 Duramax Injector- PRICED EACH NOTE: Fuel Lines MUST be replaced to retain warranty! Indu...

    View full details
    $392.95
    $392.95 - $392.95
    $392.95
    $381.16
    $381.16 - $381.16
    $381.16
    Save 3% Save %
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    Industrial Injection 01-04 Chevrolet Genuine OE 6.6L Duramax LB7 R3 40% Over Injector

    Industrial Injection
    $392.95
    $392.95 - $392.95
    $392.95
    $381.16
    $381.16 - $381.16
    $381.16

    Industrial Injection Model: 0986435502-R3 Performance LB7 Duramax Injector- PRICED EACH NOTE: Fuel Lines MUST be replaced to retain warranty! Indu...

    View full details
    $392.95
    $392.95 - $392.95
    $392.95
    $381.16
    $381.16 - $381.16
    $381.16
    Save 3% Save %
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    Industrial Injection 01-04 Chevrolet Genuine OE 6.6L Duramax LB7 R2 30% Over Injector

    Industrial Injection
    $374.95
    $374.95 - $374.95
    $374.95
    $363.70
    $363.70 - $363.70
    $363.70

    Industrial Injection Model: 0986435502-R2 Performance LB7 Duramax Injectors Industrial Injection Performance reman Injectors are the pinnacle of w...

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    $374.95
    $374.95 - $374.95
    $374.95
    $363.70
    $363.70 - $363.70
    $363.70
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    GM Remanufactured Modified 42 CP3 Injection Pump For 01-04 6.6L LB7 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: 0986437303SHOBosch 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 Modified 42 CP3 Injection Pump For 01-04 6.6L LB7 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: 0986437303SHOSEThe Modified CP3 offered by Industrial Injection is a drop in replacement for the stock CP3 fuel pump. I...

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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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    GM Remanufactured Double Dragon 120 CP3 Injection Pump For 01-04 6.6L LB7 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: 0986437303DDSEThe modified CP3 and CP4 Injection pumps offered by Industrial Injection are a drop in replacement for th...

    View full details
    $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 Dragon Fire 85 CP3 Injection Pump For 01-04 6.6L LB7 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: 0986437303DFBosch OEM reman CP3s are the pinnacle of what you should expect out of a CP3 injection pump. Each injection...

    View full details
    $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 Rail Plug For 6.6L LB7 Duramax Industrial Injection

    Industrial Injection
    $54.95
    $54.95 - $54.95
    $54.95
    $53.30
    $53.30 - $53.30
    $53.30

    Industrial Injection Model: 412512Fits the 2001-2004 LB7 Duramax

    $54.95
    $54.95 - $54.95
    $54.95
    $53.30
    $53.30 - $53.30
    $53.30
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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