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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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    DDP Duramax 04.5-05 LLY Brand New Stock CP3

    DDP
    $2,000.00
    $2,000.00 - $2,000.00
    $2,000.00
    $1,710.00
    $1,710.00 - $1,710.00
    $1,710.00

    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 ...

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    $2,000.00
    $2,000.00 - $2,000.00
    $2,000.00
    $1,710.00
    $1,710.00 - $1,710.00
    $1,710.00
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    DDP Duramax 04.5-05 LLY Brand New Injector Set - SAC Nozzle 100% Over

    DDP
    $7,929.00
    $7,929.00 - $7,929.00
    $7,929.00
    $6,779.00
    $6,779.00 - $6,779.00
    $6,779.00

    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...

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    $7,929.00
    $7,929.00 - $7,929.00
    $7,929.00
    $6,779.00
    $6,779.00 - $6,779.00
    $6,779.00
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    DDP Duramax 04.5-05 LLY Reman Injector Set - Economy Series

    DDP
    $5,714.00
    $5,714.00 - $5,714.00
    $5,714.00
    $4,886.00
    $4,886.00 - $4,886.00
    $4,886.00

    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...

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    $5,714.00
    $5,714.00 - $5,714.00
    $5,714.00
    $4,886.00
    $4,886.00 - $4,886.00
    $4,886.00
    Save 14% Save %
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    DDP Duramax 04.5-05 LLY Reman Injector Set - 75 (30% Over)

    DDP
    $6,000.00
    $6,000.00 - $6,000.00
    $6,000.00
    $5,130.00
    $5,130.00 - $5,130.00
    $5,130.00

    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...

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    $6,000.00
    $6,000.00 - $6,000.00
    $6,000.00
    $5,130.00
    $5,130.00 - $5,130.00
    $5,130.00
    Save 15% Save %
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    DDP Duramax 04.5-05 LLY Reman Injector Set - 50 (20% Over)

    DDP
    $5,857.00
    $5,857.00 - $5,857.00
    $5,857.00
    $5,008.00
    $5,008.00 - $5,008.00
    $5,008.00

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

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    $5,857.00
    $5,857.00 - $5,857.00
    $5,857.00
    $5,008.00
    $5,008.00 - $5,008.00
    $5,008.00
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    DDP Duramax 04.5-05 LLY Reman Injector Set - 60% Over

    DDP
    $6,286.00
    $6,286.00 - $6,286.00
    $6,286.00
    $5,374.00
    $5,374.00 - $5,374.00
    $5,374.00

    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...

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    $6,286.00
    $6,286.00 - $6,286.00
    $6,286.00
    $5,374.00
    $5,374.00 - $5,374.00
    $5,374.00
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    DDP Duramax 04.5-05 LLY Reman Stock CP3

    DDP
    $1,308.00
    $1,308.00 - $1,308.00
    $1,308.00
    $1,118.00
    $1,118.00 - $1,118.00
    $1,118.00

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

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    $1,308.00
    $1,308.00 - $1,308.00
    $1,308.00
    $1,118.00
    $1,118.00 - $1,118.00
    $1,118.00
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    BD Diesel 2004.5-2006 Chevy/GMC Duramax LLY Premium Stock Injector (0986435504)

    BD Diesel
    $555.00 - $555.00
    $555.00
    $585.00
    $585.00 - $585.00
    $585.00

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

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    $555.00 - $555.00
    $555.00
    $585.00
    $585.00 - $585.00
    $585.00
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    BD Diesel 2004.5-2006 Chevy Duramax LLY Stock Performance Plus Injector (0986435504)

    BD Diesel
    $496.00 - $496.00
    $496.00
    $523.00
    $523.00 - $523.00
    $523.00

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

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    $496.00 - $496.00
    $496.00
    $523.00
    $523.00 - $523.00
    $523.00
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    BD Diesel 2006-2007 Chevy Duramax LBZ Stock Performance Plus Injector (0986435521)

    BD Diesel
    $598.00 - $598.00
    $598.00
    $629.00
    $629.00 - $629.00
    $629.00

    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
    $598.00 - $598.00
    $598.00
    $629.00
    $629.00 - $629.00
    $629.00
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    BD Diesel 2004.5-2006 Chevy Duramax LLY Premium Performance Plus Injector (0986435504)

    BD Diesel
    $599.00 - $599.00
    $599.00
    $630.00
    $630.00 - $630.00
    $630.00

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

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    $599.00 - $599.00
    $599.00
    $630.00
    $630.00 - $630.00
    $630.00
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    BD Diesel Remanufactured Stock CP3 Injection Pump 2004.5-2005 LLY Duramax 6.6L

    BD Diesel
    $1,177.00 - $1,177.00
    $1,177.00
    $1,239.00
    $1,239.00 - $1,239.00
    $1,239.00

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

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    $1,177.00 - $1,177.00
    $1,177.00
    $1,239.00
    $1,239.00 - $1,239.00
    $1,239.00
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    BD Diesel Valve Body - 2004-2006 Duramax LLY Allison 1000

    BD Diesel
    $1,635.00 - $1,635.00
    $1,635.00
    $1,722.00
    $1,722.00 - $1,722.00
    $1,722.00

    BD Diesel Valve Body - 2004-2006 Duramax LLY Allison 1000 BD's exchange valve bodies are modified, tuned and tested to provide optimum performance ...

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    $1,635.00 - $1,635.00
    $1,635.00
    $1,722.00
    $1,722.00 - $1,722.00
    $1,722.00
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    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY Reman Sportsman Injector - Set of 8

    Exergy
    $4,846.00 - $4,846.00
    $4,846.00
    $4,846.00 - $4,846.00
    $4,846.00

    Exergy Model E01 10202Exergy 04.5-05 Chevrolet Duramax 6.6L LLY Reman Sportsman Injector 8 Reman Sportsman Injectors Injector Coppers and O-ring...

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    $4,846.00 - $4,846.00
    $4,846.00
    $4,846.00 - $4,846.00
    $4,846.00
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    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY 10mm Stroker CP3 Pump (LBZ Based)

    Exergy
    $3,072.00 - $3,072.00
    $3,072.00
    $3,072.00 - $3,072.00
    $3,072.00

    Exergy Model E04 10206Exergy 04.5-05 Chevrolet Duramax 6.6L LLY 10mm Stroker CP3 Pump (LBZ Based) Do you want the capability of more power without ...

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    $3,072.00 - $3,072.00
    $3,072.00
    $3,072.00 - $3,072.00
    $3,072.00
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    Fleece 04-05 GM 2500/3500 Duramax High Pressure Injection Line Kit

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $699.00
    $699.00 - $699.00
    $699.00

    Fleece Performance Model FPE-FL-DMAX-LLY-SETLLY Duramax High Pressure Injection Line Kit. Replacement high pressure fuel lines from Fleece Performa...

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    $0.00 - $0.00
    $0.00
    $699.00
    $699.00 - $699.00
    $699.00
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    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY Sportsman CP3 Pump (LBZ Based)

    Exergy
    $1,815.00 - $1,815.00
    $1,815.00
    $1,815.00 - $1,815.00
    $1,815.00

    Exergy Model E04 10205Exergy 04.5-05 Chevrolet Duramax 6.6L LLY Sportsman CP3 Pump (LBZ Based) Are you in need of a factory replacement CP3 pump? D...

    View full details
    $1,815.00 - $1,815.00
    $1,815.00
    $1,815.00 - $1,815.00
    $1,815.00
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    Mishimoto Factory-Fit Intercooler Boot Kit 04.5-05 Chevrolet 6.6L Duramax LLY

    Mishimoto
    $535.00
    $535.00 - $535.00
    $535.00
    $486.00
    $486.00 - $486.00
    $486.00

    Mishimoto Factory-Fit Intercooler Boot Kit 04.5-05 Chevrolet 6.6L Duramax Direct fit for the 2004.5-2005 Chevrolet/GMC 6.6L Duramax Five layers ...

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    $535.00
    $535.00 - $535.00
    $535.00
    $486.00
    $486.00 - $486.00
    $486.00
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    GM Remanufactured Injector For 2004.5-2005 6.6L LLY Duramax Stock Industrial Injection

    Industrial Injection
    $400.00
    $400.00 - $400.00
    $400.00
    $388.00
    $388.00 - $388.00
    $388.00

    Industrial Injection Model: 0986435504SE-IISThe Industrial Injection Stock Reman Injectors are a perfect replacement injector for someone looking f...

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    $400.00
    $400.00 - $400.00
    $400.00
    $388.00
    $388.00 - $388.00
    $388.00
    Save 3% Save %
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    Wehrli 06-07 Chevrolet 6.6L Duramax LBZ Stage 3 High Flow Bundle Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $3,749.00
    $3,749.00 - $3,749.00
    $3,749.00

    Wehrli Model WCF100503Wehrli 06-07 Chevrolet 6.6L Duramax LBZ Stage 3 High Flow Bundle Kit

    $0.00 - $0.00
    $0.00
    $3,749.00
    $3,749.00 - $3,749.00
    $3,749.00
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    Wehrli 06-07 GMC/Chevrolet 6.6L Duramax Stage 1 High Flow Intake Bundle Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $2,327.00
    $2,327.00 - $2,327.00
    $2,327.00

    Wehrli Model WCF100323 Stage 1 upgrade for the 2006-2007 LBZ Duramax improves airflow between the turbo and engine for improved efficiency, throttl...

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    $0.00 - $0.00
    $0.00
    $2,327.00
    $2,327.00 - $2,327.00
    $2,327.00
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    Wehrli 06-10* Duramax LBZ/LMM Thermostat Housing Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $678.00
    $678.00 - $678.00
    $678.00

    Wehrli Model WCF100420 The Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for 2006-2010 LBZ/LMM 6.6L Duramax replaces the OEM uppe...

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    $0.00 - $0.00
    $0.00
    $678.00
    $678.00 - $678.00
    $678.00
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    Fleece Performance 06-10 GM Duramax LBZ/LMM CP3 Injection Pump

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $1,828.00
    $1,828.00 - $1,828.00
    $1,828.00

    Fleece Performance Model FPE-DMAX-CP3Brand new Bosch CP3 for the 2006-2010 Duramax from Fleece Performance! Direct drop in replacement for stock i...

    View full details
    $0.00 - $0.00
    $0.00
    $1,828.00
    $1,828.00 - $1,828.00
    $1,828.00
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    South Bend Clutch 05-06 Chevrolet 6.6L Duramax LBZ Diesel Stage 5 Super Street Dual Disc Clutch Kit

    South Bend Clutch
    $3,002.00
    $3,002.00 - $3,002.00
    $3,002.00
    $2,985.00
    $2,985.00 - $2,985.00
    $2,985.00

    South Bend Clutch Model SSDDMAX-CBZSouth Bend Stage 5 SFI Approved Super Street Dual Disc Clutch Kit w/ Flywheel. NOT RECOMMENDED FOR TOWING OR ST...

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    $3,002.00
    $3,002.00 - $3,002.00
    $3,002.00
    $2,985.00
    $2,985.00 - $2,985.00
    $2,985.00
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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