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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 01-12 6.6L LB7 Duramax Stage 3 Allison LCT1000 Transmission Package 2WD. ATS Diesel 01-12 6.6L LB7 Duramax Stage 3 Allison LCT1000 Transmission Package 2WD.

    ATS Diesel 01-12 6.6L LB7 Duramax Stage 3 Allison LCT1000 Transmission Package 2WD

    ATS Diesel
    $ 154,245.00 - $ 154,245.00
    $ 154,245.00
    $ 154,245.00 - $ 154,245.00
    $ 154,245.00

    ATS Diesel Model 3098324248FSMFATS Diesel 01-12 6.6L LB7 Duramax Stage 3 Allison LCT1000 Transmission Package 2WD ATS 2WD 2001-2019 Allison LCT100...

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    $ 154,245.00 - $ 154,245.00
    $ 154,245.00
    $ 154,245.00 - $ 154,245.00
    $ 154,245.00
  • ATS Diesel 11-14 GM 6.6L Duramax 2WD TCM Upgrade A50 to T87. ATS Diesel 11-14 GM 6.6L Duramax 2WD TCM Upgrade A50 to T87.

    ATS Diesel 11-14 GM 6.6L Duramax 2WD TCM Upgrade A50 to T87

    ATS Diesel
    $ 41,970.00 - $ 41,970.00
    $ 41,970.00
    $ 41,970.00 - $ 41,970.00
    $ 41,970.00

    ATS Diesel Model 6019204368ATS Diesel 11-14 GM 6.6L Duramax 2WD TCM Upgrade A50 to T87 The A50 Chevy TCM that is used to control the Allison 6-spee...

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    $ 41,970.00 - $ 41,970.00
    $ 41,970.00
    $ 41,970.00 - $ 41,970.00
    $ 41,970.00
  • ATS Diesel Billet Flexplate 2001-2023 L5P Duramax 6.6L. ATS Diesel Billet Flexplate 2001-2023 L5P Duramax 6.6L.

    ATS Diesel Billet Flexplate 2001-2023 L5P Duramax 6.6L

    ATS Diesel
    $ 16,515.00 - $ 16,515.00
    $ 16,515.00
    $ 16,515.00 - $ 16,515.00
    $ 16,515.00

    ATS Diesel 01-23 L5P Duramax 6.6L Billet Flexplate SFI approved billet flexplates from ATS will hold up under the most extreme conditions. ATS bill...

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    $ 16,515.00 - $ 16,515.00
    $ 16,515.00
    $ 16,515.00 - $ 16,515.00
    $ 16,515.00
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    ATS Diesel 2004.5+ GM Trucks Fuel Rail Pressure Plug

    ATS Diesel
    $ 632.00 - $ 632.00
    $ 632.00
    $ 632.00 - $ 632.00
    $ 632.00

    ATS Model 7050504290Fuel Rail Pressure Plug - Fits 2004.5-Present GM.Details: Fuel Rail Pressure Plug Easily check fuel pressures at the rail Stee...

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    $ 632.00 - $ 632.00
    $ 632.00
    $ 632.00 - $ 632.00
    $ 632.00
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    ATS Diesel 01-05 GM Allison 1000 CoPilot Transmission Controller - 24 Pin

    ATS Diesel
    $ 24,719.00 - $ 24,719.00
    $ 24,719.00
    $ 24,719.00 - $ 24,719.00
    $ 24,719.00

    ATS Model 6019244248The New 24 Pin ATS Co-Pilot for 2001-05 GM, 5 speed Allison 1000 and 6.6L Duramax, Controls Transmission Pressure and TCC lock ...

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    $ 24,719.00 - $ 24,719.00
    $ 24,719.00
    $ 24,719.00 - $ 24,719.00
    $ 24,719.00
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    ATS Diesel GM 6.6L LML Five Star Torque Converter - Mid Stall

    ATS Diesel
    $ 30,962.00 - $ 30,962.00
    $ 30,962.00
    $ 30,962.00 - $ 30,962.00
    $ 30,962.00

    ATS Model 3029504368Five Star Viskus Drive Torque Converter, 1300-1500 Rpm Stall Speed, Billet F-Trim Stator, Positive Impeller, 2010.5 And Up 6.6L...

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    $ 30,962.00 - $ 30,962.00
    $ 30,962.00
    $ 30,962.00 - $ 30,962.00
    $ 30,962.00
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    ATS Diesel 2004.5-2005 LCT-1000 5-Speed Stage 6 Transmission Rebuild kit

    ATS Diesel
    $ 69,397.00 - $ 69,397.00
    $ 69,397.00
    $ 69,397.00 - $ 69,397.00
    $ 69,397.00

    ATS Model 31390642902004.5 to 2005 GM Allison 5 speed Kit (Stage 6). Includes: TripleLok Torque Converter (Patented Square tab) Exchange the Tripl...

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    $ 69,397.00 - $ 69,397.00
    $ 69,397.00
    $ 69,397.00 - $ 69,397.00
    $ 69,397.00
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    ATS Diesel 2003-05 GM LCT1000 Performance Valve Body Assembly

    ATS Diesel
    $ 18,044.00 - $ 18,044.00
    $ 18,044.00
    $ 18,044.00 - $ 18,044.00
    $ 18,044.00

    ATS Model 3039004272Serving truck enthusiasts for nearly two decades, ATS invents, designs, manufactures, and sells the world's most innovative die...

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    $ 18,044.00 - $ 18,044.00
    $ 18,044.00
    $ 18,044.00 - $ 18,044.00
    $ 18,044.00
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    ATS Diesel ATS Extra Deep Transmission Pan - Allison LCT1000/2000 Automatic

    ATS Diesel
    $ 7,842.00 - $ 7,842.00
    $ 7,842.00
    $ 7,842.00 - $ 7,842.00
    $ 7,842.00

    ATS Model 3019004248ATS Extra Deep Transmission Pan - Allison LCT1000/2000 AutomaticDeep Pan Features Include: Deep filter and gasket necessary fo...

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    $ 7,842.00 - $ 7,842.00
    $ 7,842.00
    $ 7,842.00 - $ 7,842.00
    $ 7,842.00
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    ATS Diesel 04.5-05 LCT-1000 5-Speed Stage 7 Transmission Rebuild kit

    ATS Diesel
    $ 90,643.00 - $ 90,643.00
    $ 90,643.00
    $ 90,643.00 - $ 90,643.00
    $ 90,643.00

    ATS Model 31390742902004.5 to 2005 GM Allison 5 speed Kit (Stage 7).Includes: TripleLok Torque Converter (Patented Square tab) Exchange the Triple...

    View full details
    $ 90,643.00 - $ 90,643.00
    $ 90,643.00
    $ 90,643.00 - $ 90,643.00
    $ 90,643.00
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    ATS Diesel 2001-04 LCT-1000 5-Speed Stage 7 Transmission Rebuild kit

    ATS Diesel
    $ 90,643.00 - $ 90,643.00
    $ 90,643.00
    $ 90,643.00 - $ 90,643.00
    $ 90,643.00

    ATS Model 31390742482001 to Early 2004 GM Allison 5 speed Kit (Stage 7).Includes: TripleLok Torque Converter (Patented Square tab) Pump Kit Manufa...

    View full details
    $ 90,643.00 - $ 90,643.00
    $ 90,643.00
    $ 90,643.00 - $ 90,643.00
    $ 90,643.00
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    ATS Diesel 2001-02 GM LCT1000 Performance Valve Body Assembly

    ATS Diesel
    $ 18,044.00 - $ 18,044.00
    $ 18,044.00
    $ 18,044.00 - $ 18,044.00
    $ 18,044.00

    ATS Model 3039004248Serving truck enthusiasts for nearly two decades, ATS invents, designs, manufactures, and sells the world's most innovative die...

    View full details
    $ 18,044.00 - $ 18,044.00
    $ 18,044.00
    $ 18,044.00 - $ 18,044.00
    $ 18,044.00
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    ATS Diesel 2001-04 ATS LCT-1000 5-Speed Stage 6 Transmission Rebuild kit

    ATS Diesel
    $ 69,397.00 - $ 69,397.00
    $ 69,397.00
    $ 69,397.00 - $ 69,397.00
    $ 69,397.00

    ATS Model 31390642482001 to Early 2004 GM Allison 5 speed Kit (Stage 6).Includes: TripleLok Torque Converter (Patented Square tab) Exchange the Tr...

    View full details
    $ 69,397.00 - $ 69,397.00
    $ 69,397.00
    $ 69,397.00 - $ 69,397.00
    $ 69,397.00
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    ATS Diesel 2001 to Early 2010 GM Duramax Five Star Torque Converter - Viskus Clutch Mid Stall

    ATS Diesel
    $ 30,962.00 - $ 30,962.00
    $ 30,962.00
    $ 30,962.00 - $ 30,962.00
    $ 30,962.00

    ATS Model 3029504248Standard in all transmission packages, and available individually, is the ATS Five Star Torque Converter. This torque converter...

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    $ 30,962.00 - $ 30,962.00
    $ 30,962.00
    $ 30,962.00 - $ 30,962.00
    $ 30,962.00
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    ATS Diesel Allison Billet Input Shaft

    ATS Diesel
    $ 16,683.00 - $ 16,683.00
    $ 16,683.00
    $ 16,683.00 - $ 16,683.00
    $ 16,683.00

    ATS Model 3049104248This billet steel input shaft is made to fix a weak link in your GM Duramax truck with Allison transmission.Details: Input Sha...

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    $ 16,683.00 - $ 16,683.00
    $ 16,683.00
    $ 16,683.00 - $ 16,683.00
    $ 16,683.00
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    ATS Diesel 2001-2010 GM TripleLok Torque Converter

    ATS Diesel
    $ 26,691.00 - $ 26,691.00
    $ 26,691.00
    $ 26,691.00 - $ 26,691.00
    $ 26,691.00

    ATS Model 3029304248The TripleLok Torque Converter for 2001 to 2010 Allison is the only Diesel torque converter on the market that has been awarded...

    View full details
    $ 26,691.00 - $ 26,691.00
    $ 26,691.00
    $ 26,691.00 - $ 26,691.00
    $ 26,691.00
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    ATS Diesel 2001-2010 ATS manufactured Allison C5 clutch pack

    ATS Diesel
    $ 6,406.00 - $ 6,406.00
    $ 6,406.00
    $ 6,406.00 - $ 6,406.00
    $ 6,406.00

    ATS Model 30880542482001-2010 Allison C5 clutch packApplication: 2001-2010 2500/3500 Duramax GM Light Duty Diesel

    $ 6,406.00 - $ 6,406.00
    $ 6,406.00
    $ 6,406.00 - $ 6,406.00
    $ 6,406.00
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    ATS Diesel GM Billet Flexplate (SFI 29.3)

    ATS Diesel
    $ 16,515.00 - $ 16,515.00
    $ 16,515.00
    $ 16,515.00 - $ 16,515.00
    $ 16,515.00

    ATS Model 3059004248SFI approved billet flexplates from ATS will hold up under the most extreme conditions. ATS billet flexplates are SFI approved,...

    View full details
    $ 16,515.00 - $ 16,515.00
    $ 16,515.00
    $ 16,515.00 - $ 16,515.00
    $ 16,515.00
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    ATS Diesel 06-07 6.6L LLY/LBZ/LMM Duramax Stage 4 Allison LCT100 Transmission Package

    ATS Diesel
    $ 170,023.00 - $ 170,023.00
    $ 170,023.00
    $ 170,023.00 - $ 170,023.00
    $ 170,023.00

    ATS Model 3098444308ATS Stage 4 Allison LCT1000 Transmission Package, 4WD, 2006-2007 6.6L LLY / LBZ / LMM Duramax. Includes: ATS 4WD 2006-2007 Al...

    View full details
    $ 170,023.00 - $ 170,023.00
    $ 170,023.00
    $ 170,023.00 - $ 170,023.00
    $ 170,023.00
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    ATS Diesel 06-07 6.6L LLY/LBZ/LMM Duramax Stage 3 Allison LCT100 Transmission Package

    ATS Diesel
    $ 154,245.00 - $ 154,245.00
    $ 154,245.00
    $ 154,245.00 - $ 154,245.00
    $ 154,245.00

    ATS Model 3098344308ATS Stage 3 Allison LCT1000 Transmission Package, 4WD, 2006-2007 6.6L LLY / LBZ / LMM Duramax. Includes: ATS 4WD 2006-2007 Al...

    View full details
    $ 154,245.00 - $ 154,245.00
    $ 154,245.00
    $ 154,245.00 - $ 154,245.00
    $ 154,245.00
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    ATS 2006-2007 6.6L LLY / LBZ / LMM Duramax Stage 1 Allison LCT1000 Transmission Package 4WD w/ PTO

    ATS Diesel
    $ 112,843.00 - $ 112,843.00
    $ 112,843.00
    $ 112,843.00 - $ 112,843.00
    $ 112,843.00

    ATS Model 3098154308ATS Stage 1 Allison LCT1000 Transmission Package, 4WD, w/ PTO, 2006-2007 6.6L LLY / LBZ / LMM Duramax. Includes: ATS 4WD w/ P...

    View full details
    $ 112,843.00 - $ 112,843.00
    $ 112,843.00
    $ 112,843.00 - $ 112,843.00
    $ 112,843.00
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    ATS Diesel 2006+ GM LCT1000 6-Speed ATS Trim Valve Kit

    ATS Diesel
    $ 3,251.00 - $ 3,251.00
    $ 3,251.00
    $ 3,251.00 - $ 3,251.00
    $ 3,251.00

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

    View full details
    $ 3,251.00 - $ 3,251.00
    $ 3,251.00
    $ 3,251.00 - $ 3,251.00
    $ 3,251.00
  • responsive-image responsive-image

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

    ATS Diesel
    $ 62,060.00 - $ 62,060.00
    $ 62,060.00
    $ 62,060.00 - $ 62,060.00
    $ 62,060.00

    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 ...

    View full details
    $ 62,060.00 - $ 62,060.00
    $ 62,060.00
    $ 62,060.00 - $ 62,060.00
    $ 62,060.00
  • responsive-image responsive-image

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

    ATS Diesel
    $ 112,843.00 - $ 112,843.00
    $ 112,843.00
    $ 112,843.00 - $ 112,843.00
    $ 112,843.00

    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...

    View full details
    $ 112,843.00 - $ 112,843.00
    $ 112,843.00
    $ 112,843.00 - $ 112,843.00
    $ 112,843.00

 

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