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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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  • Photo - Primary Photo - Primary

    ATS Diesel 2006+ GM 6-Speed LCT1000 Performance Valve Body Assembly

    ATS Diesel
    $1,275.00 - $1,275.00
    $1,275.00
    $1,275.00 - $1,275.00
    $1,275.00

    ATS Diesel Model 303-900-4308ATS Diesel 2006+ GM 6-Speed LCT1000 Performance Valve Body AssemblyThis Part Fits: Year Make Model Submodel 2006-20...

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    $1,275.00 - $1,275.00
    $1,275.00
    $1,275.00 - $1,275.00
    $1,275.00
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2006+ Up LCT-1000 6-Speed Stage 6 Transmission Rebuild kit

    ATS Diesel
    $5,164.00 - $5,164.00
    $5,164.00
    $5,164.00 - $5,164.00
    $5,164.00

    ATS Diesel Model 313-906-4308ATS Diesel 2006+ Up LCT-1000 6-Speed Stage 6 Transmission Rebuild kitThis Part Fits: Year Make Model Submodel 2006-...

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    $5,164.00 - $5,164.00
    $5,164.00
    $5,164.00 - $5,164.00
    $5,164.00
    Select Options
  • Photo - Primary Photo - Primary

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

    ATS Diesel
    $232.00 - $232.00
    $232.00
    $232.00 - $232.00
    $232.00

    ATS Diesel Model 303-904-4308ATS Diesel 2006+ GM LCT1000 6-Speed ATS Trim Valve KitThis Part Fits: Year Make Model Submodel 2006-2010 Chevrolet ...

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    $232.00 - $232.00
    $232.00
    $232.00 - $232.00
    $232.00
  • Photo - Primary Photo - Primary

    ATS Diesel 2006-07 GM 2wd 8.1L GAS LCT1000 6-Speed Stage 1 Transmission Package

    ATS Diesel
    $7,648.00 - $7,648.00
    $7,648.00
    $7,648.00 - $7,648.00
    $7,648.00

    ATS Diesel Model 309-983-4308ATS Diesel 2006-07 GM 2wd 8.1L GAS LCT1000 6-Speed Stage 1 Transmission PackageThis Part Fits: Year Make Model Submod...

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    $7,648.00 - $7,648.00
    $7,648.00
    $7,648.00 - $7,648.00
    $7,648.00
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2006-07 GM 4wd 8.1L GAS LCT1000 6-Speed Stage 1 Transmission Package

    ATS Diesel
    $7,648.00 - $7,648.00
    $7,648.00
    $7,648.00 - $7,648.00
    $7,648.00

    ATS Diesel Model 309-984-4308ATS Diesel 2006-07 GM 4wd 8.1L GAS LCT1000 6-Speed Stage 1 Transmission PackageThis Part Fits: Year Make Model Submod...

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    $7,648.00 - $7,648.00
    $7,648.00
    $7,648.00 - $7,648.00
    $7,648.00
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2006-07 GM 2wd w/ 8.1L Gas Engine LCT1000 6-Speed Stage 2 Transmission Package

    ATS Diesel
    $9,256.00 - $9,256.00
    $9,256.00
    $9,256.00 - $9,256.00
    $9,256.00

    ATS Diesel Model 309-987-4308ATS Diesel 2006-07 GM 2wd w/ 8.1L Gas Engine LCT1000 6-Speed Stage 2 Transmission PackageThis Part Fits: Year Make Mo...

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    $9,256.00 - $9,256.00
    $9,256.00
    $9,256.00 - $9,256.00
    $9,256.00
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2006-07 GM 4wd w/ 8.1L Gas Engine LCT1000 6-Speed Stage 2 Transmission Package

    ATS Diesel
    $9,256.00 - $9,256.00
    $9,256.00
    $9,256.00 - $9,256.00
    $9,256.00

    ATS Diesel Model 309-988-4308ATS Diesel 2006-07 GM 4wd w/ 8.1L Gas Engine LCT1000 6-Speed Stage 2 Transmission PackageThis Part Fits: Year Make Mo...

    View full details
    $9,256.00 - $9,256.00
    $9,256.00
    $9,256.00 - $9,256.00
    $9,256.00
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2006-07 GM 2wd w/ 8.1L Gas Engine LCT1000 6-Speed Stage 4 Transmission Package

    ATS Diesel
    $13,761.00 - $13,761.00
    $13,761.00
    $13,761.00 - $13,761.00
    $13,761.00

    ATS Diesel Model 309-998-4308ATS Diesel 2006-07 GM 2wd w/ 8.1L Gas Engine LCT1000 6-Speed Stage 4 Transmission PackageThis Part Fits: Year Make Mo...

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    $13,761.00 - $13,761.00
    $13,761.00
    $13,761.00 - $13,761.00
    $13,761.00
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2006-07 GM 4wd w/ 8.1L Gas Engine LCT1000 6-Speed Stage 4 Transmission Package

    ATS Diesel
    $13,761.00 - $13,761.00
    $13,761.00
    $13,761.00 - $13,761.00
    $13,761.00

    ATS Diesel Model 309-999-4308ATS Diesel 2006-07 GM 4wd w/ 8.1L Gas Engine LCT1000 6-Speed Stage 4 Transmission PackageThis Part Fits: Year Make Mo...

    View full details
    $13,761.00 - $13,761.00
    $13,761.00
    $13,761.00 - $13,761.00
    $13,761.00
    Select Options
  • Photo - Primary Photo - Primary

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

    ATS Diesel
    $6,743.00 - $6,743.00
    $6,743.00
    $6,743.00 - $6,743.00
    $6,743.00

    ATS Diesel Model 313-907-4290ATS Diesel 04.5-05 LCT-1000 5-Speed Stage 7 Transmission Rebuild kitThis Part Fits: Year Make Model Submodel 2006-2...

    View full details
    $6,743.00 - $6,743.00
    $6,743.00
    $6,743.00 - $6,743.00
    $6,743.00
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2001-04 LCT-1000 5-Speed Stage 7 Transmission Rebuild kit

    ATS Diesel
    $6,743.00 - $6,743.00
    $6,743.00
    $6,743.00 - $6,743.00
    $6,743.00

    ATS Diesel Model 313-907-4248ATS Diesel 2001-04 LCT-1000 5-Speed Stage 7 Transmission Rebuild kitThis Part Fits: Year Make Model Submodel 2001-2...

    View full details
    $6,743.00 - $6,743.00
    $6,743.00
    $6,743.00 - $6,743.00
    $6,743.00
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2004.5-2005 LCT-1000 5-Speed Stage 6 Transmission Rebuild kit

    ATS Diesel
    $5,164.00 - $5,164.00
    $5,164.00
    $5,164.00 - $5,164.00
    $5,164.00

    ATS Diesel Model 313-906-4290ATS Diesel 2004.5-2005 LCT-1000 5-Speed Stage 6 Transmission Rebuild kitThis Part Fits: Year Make Model Submodel 20...

    View full details
    $5,164.00 - $5,164.00
    $5,164.00
    $5,164.00 - $5,164.00
    $5,164.00
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2001-04 ATS LCT-1000 5-Speed Stage 6 Transmission Rebuild kit

    ATS Diesel
    $5,164.00 - $5,164.00
    $5,164.00
    $5,164.00 - $5,164.00
    $5,164.00

    ATS Diesel Model 313-906-4248ATS Diesel 2001-04 ATS LCT-1000 5-Speed Stage 6 Transmission Rebuild kitThis Part Fits: Year Make Model Submodel 20...

    View full details
    $5,164.00 - $5,164.00
    $5,164.00
    $5,164.00 - $5,164.00
    $5,164.00
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2001-2010 ATS manufactured Allison C5 clutch pack

    ATS Diesel
    $457.00 - $457.00
    $457.00
    $457.00 - $457.00
    $457.00

    ATS Diesel Model 308-805-4248ATS Diesel 2001-2010 ATS manufactured Allison C5 clutch packThis Part Fits: Year Make Model Submodel 2006-2010 Chev...

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    $457.00 - $457.00
    $457.00
    $457.00 - $457.00
    $457.00
  • Photo - Primary Photo - Primary

    ATS Diesel GM Billet Flexplate (SFI 29.3)

    ATS Diesel
    $1,166.00 - $1,166.00
    $1,166.00
    $1,166.00 - $1,166.00
    $1,166.00

    ATS Diesel Model 305-900-4248ATS Diesel GM Billet Flexplate (SFI 29.3)User 1This Part Fits: Year Make Model Submodel 2006-2010 Chevrolet Express...

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    $1,166.00 - $1,166.00
    $1,166.00
    $1,166.00 - $1,166.00
    $1,166.00
  • Photo - Primary Photo - Primary

    ATS Diesel Allison Billet Input Shaft

    ATS Diesel
    $1,181.00 - $1,181.00
    $1,181.00
    $1,181.00 - $1,181.00
    $1,181.00

    ATS Diesel Model 304-910-4248ATS Diesel Allison Billet Input ShaftThis Part Fits: Year Make Model Submodel 2006-2010 Chevrolet Express 2500 Base...

    View full details
    $1,181.00 - $1,181.00
    $1,181.00
    $1,181.00 - $1,181.00
    $1,181.00
  • Photo - Primary Photo - Primary

    ATS Diesel 2001-05 GM LCT1000 5-Speed Trim Valve Kit

    ATS Diesel
    $232.00 - $232.00
    $232.00
    $232.00 - $232.00
    $232.00

    ATS Diesel Model 303-904-4248ATS Diesel 2001-05 GM LCT1000 5-Speed Trim Valve KitThis Part Fits: Year Make Model Submodel 2006-2007 Chevrolet Ex...

    View full details
    $232.00 - $232.00
    $232.00
    $232.00 - $232.00
    $232.00
  • Photo - Primary Photo - Primary

    ATS Diesel 2003-05 GM LCT1000 Performance Valve Body Assembly

    ATS Diesel
    $1,275.00 - $1,275.00
    $1,275.00
    $1,275.00 - $1,275.00
    $1,275.00

    ATS Diesel Model 303-900-4272ATS Diesel 2003-05 GM LCT1000 Performance Valve Body AssemblyThis Part Fits: Year Make Model Submodel 2001-2005 Che...

    View full details
    $1,275.00 - $1,275.00
    $1,275.00
    $1,275.00 - $1,275.00
    $1,275.00
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2001-02 GM LCT1000 Performance Valve Body Assembly

    ATS Diesel
    $1,275.00 - $1,275.00
    $1,275.00
    $1,275.00 - $1,275.00
    $1,275.00

    ATS Diesel Model 303-900-4248ATS Diesel 2001-02 GM LCT1000 Performance Valve Body AssemblyThis Part Fits: Year Make Model Submodel 2001-2004 Che...

    View full details
    $1,275.00 - $1,275.00
    $1,275.00
    $1,275.00 - $1,275.00
    $1,275.00
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2001-2010 GM TripleLok Torque Converter

    ATS Diesel
    $1,883.00 - $1,883.00
    $1,883.00
    $1,883.00 - $1,883.00
    $1,883.00

    ATS Diesel Model 302-930-4248ATS Diesel 2001-2010 GM TripleLok Torque ConverterThis Part Fits: Year Make Model Submodel 2006-2010 Chevrolet Expr...

    View full details
    $1,883.00 - $1,883.00
    $1,883.00
    $1,883.00 - $1,883.00
    $1,883.00
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel ATS Extra Deep Transmission Pan - Allison LCT1000/2000 Automatic

    ATS Diesel
    $558.00 - $558.00
    $558.00
    $558.00 - $558.00
    $558.00

    ATS Diesel Model 301-900-4248ATS Diesel ATS Extra Deep Transmission Pan - Allison LCT1000/2000 AutomaticThis Part Fits: Year Make Model Submodel ...

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    $558.00 - $558.00
    $558.00
    $558.00 - $558.00
    $558.00
  • Photo - Primary Photo - Primary

    ATS Diesel 01+ GM / 03+ Dodge 14-Bolt 11.5in American Axle ATS Protector Rear Differential Cover

    ATS Diesel
    $421.00 - $421.00
    $421.00
    $421.00 - $421.00
    $421.00

    ATS Diesel Model 402-915-6248ATS Diesel 01+ GM / 03+ Dodge 14-Bolt 11.5in American Axle ATS Protector Rear Differential CoverUser 1This Part Fits: ...

    View full details
    $421.00 - $421.00
    $421.00
    $421.00 - $421.00
    $421.00
  • Photo - Primary Photo - Primary

    ATS Diesel GM 6.6L LML Five Star Torque Converter - Mid Stall

    ATS Diesel
    $2,188.00 - $2,188.00
    $2,188.00
    $2,188.00 - $2,188.00
    $2,188.00

    ATS Diesel Model 302-950-4368ATS Diesel GM 6.6L LML Five Star Torque Converter - Mid Stall

    $2,188.00 - $2,188.00
    $2,188.00
    $2,188.00 - $2,188.00
    $2,188.00
    Select Options
  • Photo - Primary Photo - Primary

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

    ATS Diesel
    $2,890.00 - $2,890.00
    $2,890.00
    $2,890.00 - $2,890.00
    $2,890.00

    ATS Diesel Model 601-940-4416ATS Diesel 2015 GM 6.6L Duramax TCM Upgrade A50 to T87

    $2,890.00 - $2,890.00
    $2,890.00
    $2,890.00 - $2,890.00
    $2,890.00

 

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