Skip to content
Free Shipping on most orders over $150.00    Sale on Select DDP Products Shop Now                    
Free Shipping on most orders over $150.00    Sale on Select DDP Products Shop Now                    

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.

Filters

  • responsive-image responsive-image

    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY New 30% Over Injector - Set of 8

    Exergy
    $6,869.00 - $6,869.00
    $6,869.00
    $6,869.00 - $6,869.00
    $6,869.00

    Exergy 04.5-05 Chevy Duramax LLY New 30% Over Injector (Set of 8)

    $6,869.00 - $6,869.00
    $6,869.00
    $6,869.00 - $6,869.00
    $6,869.00
    Select Options
  • responsive-image responsive-image

    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY Reman 400% Over Injector w/Internal Modification -Set of 8

    Exergy
    $11,122.00 - $11,122.00
    $11,122.00
    $11,122.00 - $11,122.00
    $11,122.00

    Exergy Model E01 10260 Exergy 04.5-05 Chevy Duramax LLY Reman 400% Over Injector w/Internal Modification (Set of 8) At 400% over stock, these are a...

    View full details
    $11,122.00 - $11,122.00
    $11,122.00
    $11,122.00 - $11,122.00
    $11,122.00
    Select Options
  • responsive-image responsive-image

    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY Reman 300% Over Injector w/Internal Modification -Set of 8

    Exergy
    $10,913.00 - $10,913.00
    $10,913.00
    $10,913.00 - $10,913.00
    $10,913.00

    Exergy Model E01 10256 Exergy 04.5-05 Chevy Duramax LLY Reman 300% Over Injector w/Internal Modification (Set of 8) At 300% over stock, these are ...

    View full details
    $10,913.00 - $10,913.00
    $10,913.00
    $10,913.00 - $10,913.00
    $10,913.00
    Select Options
  • responsive-image responsive-image

    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY Reman 250% Over Injector - Set of 8

    Exergy
    $7,810.00 - $7,810.00
    $7,810.00
    $7,810.00 - $7,810.00
    $7,810.00

    Exergy Model E01 10254 Exergy 04.5-05 Chevy Duramax LLY Reman 250% Over Injector (Set of 8) 8 Reman Injectors 250% Over Injector Coppers and O-rin...

    View full details
    $7,810.00 - $7,810.00
    $7,810.00
    $7,810.00 - $7,810.00
    $7,810.00
    Select Options
  • responsive-image responsive-image

    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY Reman 200% Over Injector - Set of 8

    Exergy
    $7,520.00 - $7,520.00
    $7,520.00
    $7,520.00 - $7,520.00
    $7,520.00

    Exergy Model E01 10252 Exergy 04.5-05 Chevy Duramax LLY Reman 200% Over Injector (Set of 8) 8 Reman Injectors 200% Over Injector Coppers and O-ri...

    View full details
    $7,520.00 - $7,520.00
    $7,520.00
    $7,520.00 - $7,520.00
    $7,520.00
    Select Options
  • responsive-image responsive-image

    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY Reman 150% Over Injector - Set of 8

    Exergy
    $7,404.00 - $7,404.00
    $7,404.00
    $7,404.00 - $7,404.00
    $7,404.00

    Exergy Model E01 10250 Exergy 04.5-05 Chevy Duramax LLY Reman 150% Over Injector (Set of 8) 8 Reman Injectors 150% Over Injector Coppers and O-rin...

    View full details
    $7,404.00 - $7,404.00
    $7,404.00
    $7,404.00 - $7,404.00
    $7,404.00
    Select Options
  • responsive-image responsive-image

    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY Reman 100% Over Injector - Set of 8

    Exergy
    $6,846.00 - $6,846.00
    $6,846.00
    $6,846.00 - $6,846.00
    $6,846.00

    Exergy Model Exergy 04.5-05 Chevy Duramax LLY Reman 100% Over Injector (Set of 8) 8 Reman Injectors 100% Over Injector Coppers and O-rings The ...

    View full details
    $6,846.00 - $6,846.00
    $6,846.00
    $6,846.00 - $6,846.00
    $6,846.00
    Select Options
  • responsive-image responsive-image

    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY Reman 30% Over Injector - Set of 8

    Exergy
    $6,102.00 - $6,102.00
    $6,102.00
    $6,102.00 - $6,102.00
    $6,102.00

    Exergy Model Exergy 04.5-05 Chevy Duramax LLY Reman 30% Over Injector (Set of 8) 8 Reman Injectors 30% Over Injector Coppers and O-rings At 30% ...

    View full details
    $6,102.00 - $6,102.00
    $6,102.00
    $6,102.00 - $6,102.00
    $6,102.00
    Select Options
  • responsive-image responsive-image

    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY Reman 60% Over Injector - Set of 8

    Exergy
    $6,392.00 - $6,392.00
    $6,392.00
    $6,392.00 - $6,392.00
    $6,392.00

    Exergy Model E01 10207 Exergy 04.5-05 Chevy Duramax LLY Reman 60% Over Injector (Set of 8) 8 Reman Injectors 60% Over Injector Coppers and O-rings...

    View full details
    $6,392.00 - $6,392.00
    $6,392.00
    $6,392.00 - $6,392.00
    $6,392.00
    Select Options
  • responsive-image responsive-image

    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY Reman 45% Over Injector - Set of 8

    Exergy
    $6,253.00 - $6,253.00
    $6,253.00
    $6,253.00 - $6,253.00
    $6,253.00

    Exergy Model E01 10206 Exergy 04.5-05 Chevy Duramax LLY Reman 45% Over Injector (Set of 8) 8 Reman Injectors 45% Over Injector Coppers and O-rings...

    View full details
    $6,253.00 - $6,253.00
    $6,253.00
    $6,253.00 - $6,253.00
    $6,253.00
    Select Options
  • responsive-image responsive-image

    DDP Duramax 04.5-05 LLY Brand New Injector Set - 75 (30% Over)

    DDP
    $0.00 - $0.00
    $0.00
    $6,970.00
    $6,970.00 - $6,970.00
    $6,970.00

    DDP Model DDPNLLY-75Duramax 04.5-05 LLY Injector Set: Brand New injector set flowing at 30 percent over, capable of 675 RWHP with proper supporting...

    View full details
    $0.00 - $0.00
    $0.00
    $6,970.00
    $6,970.00 - $6,970.00
    $6,970.00
  • responsive-image responsive-image

    DDP Duramax 04.5-05 LLY Brand New Injector Set - SAC Nozzle 150% Over

    DDP
    $0.00 - $0.00
    $0.00
    $7,798.00
    $7,798.00 - $7,798.00
    $7,798.00

    DDP Model DDPNLLY-300Duramax 04.5-05 LLY Injector Set: Brand New injector set with no core charge! This injector set comes with SAC style nozzles f...

    View full details
    $0.00 - $0.00
    $0.00
    $7,798.00
    $7,798.00 - $7,798.00
    $7,798.00
  • responsive-image responsive-image

    DDP Duramax 04.5-05 LLY Brand New Stock CP3

    DDP
    $0.00 - $0.00
    $0.00
    $1,933.00
    $1,933.00 - $1,933.00
    $1,933.00

    DDP Model DDPNCP3-308Duramax 04.5-05 LLY: Brand New replacement stock CP3 injection pump. No core charge. Details: Liter: 6.6 Engine: LLY Duramax ...

    View full details
    $0.00 - $0.00
    $0.00
    $1,933.00
    $1,933.00 - $1,933.00
    $1,933.00
  • responsive-image responsive-image

    DDP Duramax 04.5-05 LLY Brand New Injector Set - SAC Nozzle 100% Over

    DDP
    $0.00 - $0.00
    $0.00
    $7,660.00
    $7,660.00 - $7,660.00
    $7,660.00

    DDP Model DDPNLLY-200Duramax 04.5-05 LLY Injector Set: Brand New injector set with no core charge! This injector set comes with SAC style nozzles f...

    View full details
    $0.00 - $0.00
    $0.00
    $7,660.00
    $7,660.00 - $7,660.00
    $7,660.00
  • responsive-image responsive-image

    DDP Duramax 04.5-05 LLY Reman Injector Set - Economy Series

    DDP
    $0.00 - $0.00
    $0.00
    $5,521.00
    $5,521.00 - $5,521.00
    $5,521.00

    DDP Model DDPLLY-ECODuramax 04.5-05 LLY Injector Set: Remanufactured injector set, Economy Series with a very mild 10-20 RWHP increase and full inj...

    View full details
    $0.00 - $0.00
    $0.00
    $5,521.00
    $5,521.00 - $5,521.00
    $5,521.00
    Select Options
  • responsive-image responsive-image

    DDP Duramax 04.5-05 LLY Reman Injector Set - 75 (30% Over)

    DDP
    $0.00 - $0.00
    $0.00
    $5,797.00
    $5,797.00 - $5,797.00
    $5,797.00

    DDP Model DDPLLY-75Duramax 04.5-05 LLY Injector Set: Remanufactured injector set flowing at 30 percent over, capable of 675 RWHP with proper suppor...

    View full details
    $0.00 - $0.00
    $0.00
    $5,797.00
    $5,797.00 - $5,797.00
    $5,797.00
    Select Options
  • responsive-image responsive-image

    DDP Duramax 04.5-05 LLY Reman Injector Set - 50 (20% Over)

    DDP
    $0.00 - $0.00
    $0.00
    $5,659.00
    $5,659.00 - $5,659.00
    $5,659.00

    DDP Model DDPLLY-50Duramax 04.5-05 LLY Injector Set: Remanufactured injector set flowing at 20 percent over, approximately 50 RWHP over stock. Inje...

    View full details
    $0.00 - $0.00
    $0.00
    $5,659.00
    $5,659.00 - $5,659.00
    $5,659.00
    Select Options
  • responsive-image responsive-image

    DDP Duramax 04.5-05 LLY Reman Injector Set - 60% Over

    DDP
    $0.00 - $0.00
    $0.00
    $6,073.00
    $6,073.00 - $6,073.00
    $6,073.00

    DDP Model DDPLLY-150Duramax 04.5-05 LLY Injector Set: Remanufactured injector set, Nozzles flow at 60 percent over and the injectors have had inter...

    View full details
    $0.00 - $0.00
    $0.00
    $6,073.00
    $6,073.00 - $6,073.00
    $6,073.00
    Select Options
  • responsive-image responsive-image

    DDP Duramax 04.5-05 LLY Reman Stock CP3

    DDP
    $0.00 - $0.00
    $0.00
    $1,263.00
    $1,263.00 - $1,263.00
    $1,263.00

    DDP Model DDPCP3-308Duramax 04.5-05 LLY: Replacement remanufactured Stock CP3 injection pump. Details: Liter: 6.6 Engine: LLY Duramax Years: 2004....

    View full details
    $0.00 - $0.00
    $0.00
    $1,263.00
    $1,263.00 - $1,263.00
    $1,263.00
    Select Options
  • responsive-image responsive-image

    BD Diesel 2004.5-2006 Chevy/GMC Duramax LLY Premium Stock Injector (0986435504)

    BD Diesel
    $564.00 - $564.00
    $564.00
    $577.00
    $577.00 - $577.00
    $577.00

    BD-Built Stock Premium replacement injectors are assembled using Bosch procedures and fully calibrated and tested to ensure perfect operation. Buil...

    View full details
    $564.00 - $564.00
    $564.00
    $577.00
    $577.00 - $577.00
    $577.00
    Select Options
  • responsive-image responsive-image

    BD Diesel 2004.5-2006 Chevy Duramax LLY Stock Performance Plus Injector (0986435504)

    BD Diesel
    $516.00 - $516.00
    $516.00
    $532.00
    $532.00 - $532.00
    $532.00

    BD Diesel's OE quality stock replacement 'Plus' injectors are assembled with the same exacting standards as our highest performance injectors, usin...

    View full details
    $516.00 - $516.00
    $516.00
    $532.00
    $532.00 - $532.00
    $532.00
    Select Options
  • responsive-image responsive-image

    BD Diesel 2006-2007 Chevy Duramax LBZ Stock Performance Plus Injector (0986435521)

    BD Diesel
    $620.00 - $620.00
    $620.00
    $640.00
    $640.00 - $640.00
    $640.00

    BD Diesel's OE quality stock replacement 'Plus' injectors are assembled with the same exacting standards as our highest performance injectors, usin...

    View full details
    $620.00 - $620.00
    $620.00
    $640.00
    $640.00 - $640.00
    $640.00
    Select Options
  • responsive-image responsive-image

    BD Diesel 2004.5-2006 Chevy Duramax LLY Premium Performance Plus Injector (0986435504)

    BD Diesel
    $609.00 - $609.00
    $609.00
    $622.00
    $622.00 - $622.00
    $622.00

    BD Diesel Performance is unique among its peers in that it designs, manufactures and distributes a wide range of products specifically engineered f...

    View full details
    $609.00 - $609.00
    $609.00
    $622.00
    $622.00 - $622.00
    $622.00
    Select Options
  • responsive-image responsive-image

    BD Diesel Remanufactured Stock CP3 Injection Pump 2004.5-2005 LLY Duramax 6.6L

    BD Diesel
    $1,197.00 - $1,197.00
    $1,197.00
    $1,285.00
    $1,285.00 - $1,285.00
    $1,285.00

    BD Diesel Remanufactured Stock CP3 Injection Pump 2004.5-2005 LLY Duramax 6.6LThis Part Fits: Year Make Model Submodel 2004-2005 Chevrolet S...

    View full details
    $1,197.00 - $1,197.00
    $1,197.00
    $1,285.00
    $1,285.00 - $1,285.00
    $1,285.00
    Select Options

 

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