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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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    ATS Diesel 2006+ GM LCT1000 6-Speed ATS Trim Valve Kit

    ATS Diesel
    $159.99 - $159.99
    $159.99
    $159.99 - $159.99
    $159.99

    ATS Model 3039044308Serving truck enthusiasts for nearly two decades, ATS invents, designs, manufactures, and sells the world's most innovative die...

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    $159.99 - $159.99
    $159.99
    $159.99 - $159.99
    $159.99
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    ATS Diesel 2015 GM 6.6L Duramax TCM Upgrade A50 to T87

    ATS Diesel
    $2,950.00 - $2,950.00
    $2,950.00
    $2,950.00 - $2,950.00
    $2,950.00

    ATS Model 6019404416ATS TCM Upgrade, A40 / A50 to T87A. Fitment: 2011- Early 2015 GM 6.6L Duramax. The A40 and A50 TCM that is used to control the ...

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    $2,950.00 - $2,950.00
    $2,950.00
    $2,950.00 - $2,950.00
    $2,950.00
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    ATS Diesel 07.5-10 6.6L LMM Duramax 4WD Allison LCT1000 Stage 1 Transmission Package

    ATS Diesel
    $5,794.99 - $5,794.99
    $5,794.99
    $5,794.99 - $5,794.99
    $5,794.99

    ATS Model 3098144332ATS Stage 1 Allison LCT1000 Transmission Package, 4WD, 2007.5-2010 6.6L LMM Duramax. Includes: ATS 4WD 2007.5-2010 Allison LC...

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    $5,794.99 - $5,794.99
    $5,794.99
    $5,794.99 - $5,794.99
    $5,794.99
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    ATS Diesel 2006+ GM 6-Speed LCT1000 Performance Valve Body Assembly

    ATS Diesel
    $879.99 - $879.99
    $879.99
    $879.99 - $879.99
    $879.99

    ATS Model 3039004308Serving truck enthusiasts for nearly two decades, ATS invents, designs, manufactures, and sells the world's most innovative die...

    View full details
    $879.99 - $879.99
    $879.99
    $879.99 - $879.99
    $879.99
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    ATS Diesel 2011-2014 GM 6.6L Duramax TCM Upgrade A50 to T87

    ATS Diesel
    $2,950.00 - $2,950.00
    $2,950.00
    $2,950.00 - $2,950.00
    $2,950.00

    ATS Model 6019404368ATS TCM Upgrade, A40 / A50 to T87A, Fitment: 2011- Early 2015 GM 6.6L Duramax. The A40 and A50 TCM that is used to control the ...

    View full details
    $2,950.00 - $2,950.00
    $2,950.00
    $2,950.00 - $2,950.00
    $2,950.00
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    ATS Diesel 2006+ Up LCT-1000 6-Speed Stage 6 Transmission Rebuild kit

    ATS Diesel
    $3,564.99 - $3,564.99
    $3,564.99
    $3,564.99 - $3,564.99
    $3,564.99

    ATS Model 31390643082006-2010 GM Allison 6 speed Kit (Stage 6).Includes: TripleLok Torque Converter (Patented Square tab) Exchange the TripleLok T...

    View full details
    $3,564.99 - $3,564.99
    $3,564.99
    $3,564.99 - $3,564.99
    $3,564.99
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    ATS Diesel 2001-05 GM LCT1000 5-Speed Trim Valve Kit

    ATS Diesel
    $159.99 - $159.99
    $159.99
    $159.99 - $159.99
    $159.99

    ATS Model 3039044248Serving truck enthusiasts for nearly two decades, ATS invents, designs, manufactures, and sells the world's most innovative die...

    View full details
    $159.99 - $159.99
    $159.99
    $159.99 - $159.99
    $159.99
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    ATS Diesel 01+ GM / 03+ Dodge 14-Bolt 11.5in American Axle ATS Protector Rear Differential Cover

    ATS Diesel
    $289.99 - $289.99
    $289.99
    $289.99 - $289.99
    $289.99

    ATS Model 4029156248ATS Protector Rear Differential Cover for AAM 14-Bolt 11.5 Inch. Cast aluminum construction with a black powdercoat finish. Kit...

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    $289.99 - $289.99
    $289.99
    $289.99 - $289.99
    $289.99
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    ATS Diesel 2000 - Early 05 Dodge 2wd NV5600 Trans

    ATS Diesel
    $5,524.99 - $5,524.99
    $5,524.99
    $5,524.99 - $5,524.99
    $5,524.99

    ATS Model 3119622236ATS Built NV5600 6-Speed Manual Trans, 2000-Early 2005 Dodge 2WDDetails: ATS NV5600 Transmission 6-Speed Manual Cast Iron Case...

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    $5,524.99 - $5,524.99
    $5,524.99
    $5,524.99 - $5,524.99
    $5,524.99
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    DDP Duramax 08-10 LMM New Injector Set Economy Series

    DDP
    $5,750.00
    $5,750.00 - $5,750.00
    $5,750.00
    $4,916.25
    $4,916.25 - $4,916.25
    $4,916.25

    DDP Model DDPNLMM-ECODuramax 08-10 LMM Injector Set: Brand New injector set, Economy Series with a very mild 10-20 RWHP increase and full injector ...

    View full details
    $5,750.00
    $5,750.00 - $5,750.00
    $5,750.00
    $4,916.25
    $4,916.25 - $4,916.25
    $4,916.25
    Save 15% Save %
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    Fleece Performance 01-19 GM 2500/3500 Allison LCT/GM 4T65-E Internal Harness Connector & Seal (7pk)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $139.99
    $139.99 - $139.99
    $139.99

    Fleece Performance Model FPE-HAR-GM-LCT-SEAL-7PGet rid of oil leaks from the harness connector with our replacement internal wiring harness seal fo...

    View full details
    $0.00 - $0.00
    $0.00
    $139.99
    $139.99 - $139.99
    $139.99
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    Exergy Dodge Cummins 6.7L/Chevrolet Duramax LLY/LBZ/LMM 1800 Bar (26000 PSI) Pressure Relief Valve

    Exergy
    $240.00 - $240.00
    $240.00
    $240.00 - $240.00
    $240.00

    Exergy Dodge Cummins 6.7 / Chevy Duramax LLY/LBZ/LMM 1800 Bar (26 000 PSI) Pressure Relief Valve

    $240.00 - $240.00
    $240.00
    $240.00 - $240.00
    $240.00
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    Exergy Cummins 6.7L/Duramax LLY/LBZ/LMM 2400 Bar (34800 PSI) Pressure Relief Valve *RACE*

    Exergy
    $300.00 - $300.00
    $300.00
    $300.00 - $300.00
    $300.00

    Exergy Model E07 00016Exergy Cummins 6.7L/Duramax LLY/LBZ/LMM 2400 Bar (34800 PSI) Pressure Relief Valve *RACE*

    $300.00 - $300.00
    $300.00
    $300.00 - $300.00
    $300.00
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    Exergy Cummins 6.7L/Duramax LLY/LBZ/LMM 2600 Bar (37700 PSI) Pressure Relief Valve

    Exergy
    $320.00 - $320.00
    $320.00
    $320.00 - $320.00
    $320.00

    Exergy Cummins 6.7L/Duramax LLY/LBZ/LMM 2600 Bar (37700 PSI) Pressure Relief Valve *RACE*

    $320.00 - $320.00
    $320.00
    $320.00 - $320.00
    $320.00
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    Exergy Dodge Cummins 6.7L/Chevrolet Duramax LLY/LBZ/LMM 2000 Bar (29000 PSI) Pressure Relief Valve

    Exergy
    $240.00 - $240.00
    $240.00
    $240.00 - $240.00
    $240.00

    Exergy Model E07 00012Exergy Dodge Cummins 6.7L/Chevrolet Duramax LLY/LBZ/LMM 2000 Bar (29000 PSI) Pressure Relief Valve

    $240.00 - $240.00
    $240.00
    $240.00 - $240.00
    $240.00
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    Speedometer Calibrator | Chevy/GMC 1500/2500HD 2WD/4WD

    Rough Country
    $259.95 - $259.95
    $259.95
    $259.95 - $259.95
    $259.95

    Put the finishing touch on your lifted vehicle with Rough Country's Speedometer Calibration Device! This easy-to-use Speedometer Calibrator helps y...

    View full details
    $259.95 - $259.95
    $259.95
    $259.95 - $259.95
    $259.95
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    Speedometer Calibrator | Inline | Chevy/GMC 2500HD/3500HD (17-19)

    Rough Country
    $169.95 - $169.95
    $169.95
    $169.95 - $169.95
    $169.95

    Put the finishing touch on your lifted vehicle with Rough Country's Speedometer Calibration Device! This easy-to-use Speedometer Calibrator helps y...

    View full details
    $169.95 - $169.95
    $169.95
    $169.95 - $169.95
    $169.95
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    Rear Wheel Well Liners | GMC Sierra 1500/Sierra 2500 HD/Sierra 3500 HD (14-19)

    Rough Country
    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95

    Give your rear wheel wells superior protection and a striking, new look with Rough Country's Rear Wheel Well Liners. Made of high-density Polyethyl...

    View full details
    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95
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    Brakes Lines | Front | Chevy/GMC 1500/1500 SUV/2500HD/3500HD (07-19 & Classic)

    Rough Country
    $79.95 - $79.95
    $79.95
    $79.95 - $79.95
    $79.95

    Upgrade your worn out rubber brake lines with Rough Country's Stainless Extended Steel Brake Line Kit. Our DOT approved brake line kits offer the n...

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    $79.95 - $79.95
    $79.95
    $79.95 - $79.95
    $79.95
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    Speedometer Calibrator | Chevy/GMC 1500/2500HD/3500HD (07-18 & Classic)

    Rough Country
    $259.95 - $259.95
    $259.95
    $259.95 - $259.95
    $259.95

    Put the finishing touch on your lifted vehicle with Rough Country's Speedometer Calibration Device! This easy-to-use Speedometer Calibrator helps y...

    View full details
    $259.95 - $259.95
    $259.95
    $259.95 - $259.95
    $259.95
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    LED Light Mount | Upper Windshield | 50" Curved | Chevy/GMC 1500/1500 SUV/2500HD/3500HD (07-14)

    Rough Country
    $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95

    Ride proudly into the night with Rough Country's 50-inch Curved LED Upper Windshield Light Bar Mounts for GM Pickups and SUVs. Our durable, steel m...

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    $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95
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    Rear Wheel Well Liners | GMC Sierra 1500 (07-13)/Sierra 2500 HD (07-10)

    Rough Country
    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95

    Give your rear wheel wells superior protection and a striking, new look with Rough Country's Rear Wheel Well Liners. Made of high-density Polyethyl...

    View full details
    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95
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    Rear Wheel Well Liners | Chevy Silverado 1500 (07-13)/Silverado 2500 HD (07-10)

    Rough Country
    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95

    Give your rear wheel wells superior protection and a striking, new look with Rough Country's Rear Wheel Well Liners. Made of high-density Polyethyl...

    View full details
    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95
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    LED Light Mount | Bumper | 20" | Chevy Silverado 1500 (07-13)/Silverado 2500 HD (07-10)

    Rough Country
    $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95

    Bring the power of off-road illumination to your 07-13 GM 1500 or 07-10 2500HD/3500HD with Rough Country's 20-inch Bumper Light Bar Mount. This eas...

    View full details
    $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95

 

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