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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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    HPT MPVI4

    HP Tuners
    $399.99 - $399.99
    $399.99
    $399.99 - $399.99
    $399.99

    Introducing HP Tuners’ newest and most advanced vehicle interface. Designed for custom calibration, diagnostics, and data acquisition, MPVI4 sets t...

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    $399.99 - $399.99
    $399.99
    $399.99 - $399.99
    $399.99
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    Wehrli Big Hitch Products Billet Aluminum Competition Kill Switch

    Wehrli
    $0.00 - $0.00
    $0.00
    $195.00
    $195.00 - $195.00
    $195.00

    Wehrli Big Hitch Products Model BHP4010 Universal Kill Switch for Competition Pulling Vehicles to cut ground wire circuit of Ignition, Fuel pump...

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    $0.00 - $0.00
    $0.00
    $195.00
    $195.00 - $195.00
    $195.00
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    Wehrli 20-2024 GM 2500/3500 HD Lower Splash Shield Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $290.03
    $290.03 - $290.03
    $290.03

    Wehrli Model WCF100459 The WCFab Splash Shield Kit for 2020-2025 Chevrolet Silverado 2500/3500 HD and GMC Sierra/Denali 2500/3500 HD trucks replace...

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    $0.00 - $0.00
    $0.00
    $290.03
    $290.03 - $290.03
    $290.03
    Select Options
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    Wehrli 20-24 GM 2500/3500 HD Bumper Spacer Kit - 3/8in

    Wehrli
    $0.00 - $0.00
    $0.00
    $142.59
    $142.59 - $142.59
    $142.59

    Wehrli Model WCF100446 Wehrli 2020+ GM 2500/3500 HD Bumper Spacer Kit - 3/8in WCFab 3/8" Front Bumper Spacer Kit for 2020-2025 GM 2500/3500 HD Truc...

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    $0.00 - $0.00
    $0.00
    $142.59
    $142.59 - $142.59
    $142.59
  • S&S Diesel Motorsport L5P CP3 conversion kit w/ 10mm Pump - Competition Use Only. S&S Diesel Motorsport L5P CP3 conversion kit w/ 10mm Pump - Competition Use Only.

    S&S Diesel Motorsport L5P CP3 conversion kit w/ 10mm Pump - Competition Use Only

    S&S
    $2,912.00 - $2,912.00
    $2,912.00
    $2,912.00 - $2,912.00
    $2,912.00

    S&S Model L5P-CP3-10S&S Diesel Motorsport L5P CP3 conversion kit w/ 10mm Pump - Competition Use Only Will not work on stock trucks! No Ship...

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    $2,912.00 - $2,912.00
    $2,912.00
    $2,912.00 - $2,912.00
    $2,912.00
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    S&S Diesel Motorsport High Pressure Electronic Regulator (LML DRV)

    S&S
    $180.00 - $180.00
    $180.00
    $180.00 - $180.00
    $180.00

    S&S Model DRV-LMLS&S Diesel Motorsport High Pressure Electronic Regulator (LML DRV) *Generic Image

    $180.00 - $180.00
    $180.00
    $180.00 - $180.00
    $180.00
  • S&S Diesel Motorsport DBV4 Single Stage Relief Valve Innternal Return LLY/LBZ/LMM, 6.7 Style - 2700bar. S&S Diesel Motorsport DBV4 Single Stage Relief Valve Innternal Return LLY/LBZ/LMM, 6.7 Style - 2700bar.

    S&S Diesel Motorsport LBZ, 6.7L Relief Valve (2000 bar)

    S&S
    $208.00 - $208.00
    $208.00
    $208.00 - $208.00
    $208.00

    S&S Model PRV-LBZ/6.7CS&S Diesel Motorsport LBZ, 6.7L Relief Valve (2000 bar)

    $208.00 - $208.00
    $208.00
    $208.00 - $208.00
    $208.00
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    Cold Air Intake For 20-26 Chevrolet Silverado GMC Sierra V8-6.6L L5P Duramax S&B

    S&B
    $379.00 - $379.00
    $379.00
    $379.00 - $379.00
    $379.00

    Model:75-5136 Maximum Performance: Our cold air intake for the 20-21 Silverado / Sierra Duramax L5P 6.6L was engineered to minimize air restriction...

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    $379.00 - $379.00
    $379.00
    $379.00 - $379.00
    $379.00
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    Under Seat Storage | Crew Cab | Chevy/GMC 1500/2500HD/3500HD 2WD/4WD

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

    Clean up the contents of your cab with Rough Countrys Custom-Fit Under Seat Storage Compartment. These handy underseat truck storage compartments o...

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    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95
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    Wehrli 2001+ GM Duramax LB7/LLY/LBZ/LMM/LML/L5P Billet Oil Fill Cap - Clear Anodized

    Wehrli
    $0.00 - $0.00
    $0.00
    $51.41
    $51.41 - $51.41
    $51.41

    Wehrli Model WCF100442Wehrli 2001+ GM Duramax LB7/LLY/LBZ/LMM/LML/L5P Billet Oil Fill Cap - Clear Anodized Clean up the engine bay of your 2001-202...

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    $0.00 - $0.00
    $0.00
    $51.41
    $51.41 - $51.41
    $51.41
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    Wehrli 20-24 Duramax L5P 4in. Stage 2 Intake Kit

    Wehrli
    $910.00
    $910.00 - $910.00
    $910.00
    $833.23
    $833.23 - $833.23
    $833.23

    Wehrli Model WCF100684 High flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic f...

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    $910.00
    $910.00 - $910.00
    $910.00
    $833.23
    $833.23 - $833.23
    $833.23
    Save 8% Save %
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    Wehrli 11-19 GM Duramax 6.6L Lower Splash Shield Kit

    Wehrli
    $314.00
    $314.00 - $314.00
    $314.00
    $290.03
    $290.03 - $290.03
    $290.03

    Wehrli Model WCF100432 The WCFab Splash Shield Kit for 2011-2019 Chevrolet Silverado 2500/3500 HD and GMC Sierra/Denali 2500/3500 HD trucks replace...

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    $314.00
    $314.00 - $314.00
    $314.00
    $290.03
    $290.03 - $290.03
    $290.03
    Save 8% Save %
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    Wehrli 04.5-2010 Duramax LLY/LBZ/LMM Crankcase Vent (PCV) Fitting Kit - Billet Black Anodized

    Wehrli
    $0.00 - $0.00
    $0.00
    $46.08
    $46.08 - $46.08
    $46.08

    Wehrli Model WCF100189Wehrli 04.5-2010 Duramax LLY/LBZ/LMM Crankcase Vent (PCV) Fitting Kit - Billet Black Anodized Kit includes two CNC machined...

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    $0.00 - $0.00
    $0.00
    $46.08
    $46.08 - $46.08
    $46.08
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    Wehrli 04.5-10 Chevrolet 6.6L LLY/LBZ/LMM Duramax 3in Down Pipe

    Wehrli
    $0.00 - $0.00
    $0.00
    $194.00
    $194.00 - $194.00
    $194.00

    Wehrli Model WCF100120Wehrli 04.5-10 Chevrolet 6.6L LLY/LBZ/LMM Duramax 3in Down Pipe Replace the restrictive crushed factory turbo down pipe / exh...

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    $0.00 - $0.00
    $0.00
    $194.00
    $194.00 - $194.00
    $194.00
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    Wehrli 01-05 Chevrolet 6.6L LB7/LLY Duramax Upper Coolant Pipe

    Wehrli
    $0.00 - $0.00
    $0.00
    $144.53
    $144.53 - $144.53
    $144.53

    Wehrli Model WCF100860 Aluminum Upper Coolant Pipe for LB7/LLY Duramax replaces the OEM rubber upper coolant hose and comes powder coated color of ...

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    $0.00 - $0.00
    $0.00
    $144.53
    $144.53 - $144.53
    $144.53
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    South Bend Clutch Chevy Duramax 6.6L Replacemnt Hydraulic Assembly

    South Bend Clutch
    $204.27
    $204.27 - $204.27
    $204.27
    $203.10
    $203.10 - $203.10
    $203.10

    South Bend Clutch Model HYDX-MAXSouth Bend Clutch Chevy Duramax 6.6L Replacemnt Hydraulic AssemblyThis Part Fits: Year Make Model Submodel 2001-...

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    $204.27
    $204.27 - $204.27
    $204.27
    $203.10
    $203.10 - $203.10
    $203.10
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    Mishimoto 01-21 Silverado Sierra Express Savana Duramax 6.6L Low Temp Thermostat Set

    Mishimoto
    $110.00
    $110.00 - $110.00
    $110.00
    $99.95
    $99.95 - $99.95
    $99.95

    Mishimoto 01-21 Silverado Sierra Express Savana Duramax 6.6L Low Temp Thermostat Set Fits 2001-2021 Chevrolet/GMC 6.6L Duramax (see fitment char...

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    $110.00
    $110.00 - $110.00
    $110.00
    $99.95
    $99.95 - $99.95
    $99.95
    Save 9% Save %
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    GM FCA For 2004.5-2005 LLY 6.6L Duramax Industrial Injection

    Industrial Injection
    $190.15 - $190.15
    $190.15
    $190.15 - $190.15
    $190.15

    Industrial Injection Model: 0928400653-IISReplacement FCA for a LL7 CP3. Industrial Injection is the leading distributor, supplier and remanufactur...

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    $190.15 - $190.15
    $190.15
    $190.15 - $190.15
    $190.15
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    Wehrli 06-10 Duramax LBZ/LMM Intercooler Outlet Elbow Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $231.83
    $231.83 - $231.83
    $231.83

    Wehrli Model WCF100466 The 3.5" High Flow Intercooler Outlet Elbow for 2006-2010 LBZ/LMM Duramax replaces the factory plastic piece pipe with a hig...

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    $0.00 - $0.00
    $0.00
    $231.83
    $231.83 - $231.83
    $231.83
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    Wehrli 01-04 Chevrolet Duramax LB7 S300/S400 Single Turbo 3in Y-Bridge Kit

    Wehrli
    $644.00
    $644.00 - $644.00
    $644.00
    $571.33
    $571.33 - $571.33
    $571.33

    Wehrli Model WCF100615***BRIDGE ASSEMBLY ONLY***3" High Flow Y-Bridge for custom build racing applications only. Bolts to OEM intake runners. 3" Be...

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    $644.00
    $644.00 - $644.00
    $644.00
    $571.33
    $571.33 - $571.33
    $571.33
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    Wehrli 01-04 Chevrolet LB7 Duramax High Flow Intake Bundle Kit Stage 1

    Wehrli
    $0.00 - $0.00
    $0.00
    $1,143.63
    $1,143.63 - $1,143.63
    $1,143.63

    Wehrli Model WCF100411 Already have an air intake and turbo down pipe that you're happy with, but looking to improve your LB7's performance and eff...

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    $0.00 - $0.00
    $0.00
    $1,143.63
    $1,143.63 - $1,143.63
    $1,143.63
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    Wehrli 20-24 Chevrolet 6.6L Duramax L5P Stage 3 High Flow Intake Bundle Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $1,828.45
    $1,828.45 - $1,828.45
    $1,828.45

    Wehrli Model WCF100418 Stage 3 upgrade for the 2020-2025 L5P Duramax combines our Stage 2 High Flow Bundle and 3.5 in. Down Pipe into a single pack...

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    $0.00 - $0.00
    $0.00
    $1,828.45
    $1,828.45 - $1,828.45
    $1,828.45
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    Wehrli 15-19 Chevrolet ado HD 6.6L LML/L5P Duramax Bumper Grille

    Wehrli
    $0.00 - $0.00
    $0.00
    $135.80
    $135.80 - $135.80
    $135.80

    Wehrli Model WCF100290 2015-2019 LML/L5P Chevrolet Silverado HD Bumper Grilles from WCFab are constructed from heavy gauge stainless steel and desi...

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    $0.00 - $0.00
    $0.00
    $135.80
    $135.80 - $135.80
    $135.80
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    Wehrli 17-24 Chevrolet/GMC 6.6L L5P Duramax Up Pipe Bolt Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $60.14
    $60.14 - $60.14
    $60.14

    Wehrli Model WCF100199Wehrli 17-24 Chevrolet/GMC 6.6L L5P Duramax Up Pipe Bolt Kit The WCFab L5P Up Pipe Bolt Kit is comprised of 12 specially sele...

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    $0.00 - $0.00
    $0.00
    $60.14
    $60.14 - $60.14
    $60.14

 

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