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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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  • User 1 Photo - Primary Save 9% Save %

    Mishimoto Mishimoto Steel Spiked Lug Nuts M14 x 1.5 32pc Set Black

    Mishimoto
    $163.00
    $163.00 - $163.00
    $163.00
    $149.00
    $149.00 - $149.00
    $149.00

    Mishimoto Model MMLG-SP1415-32BKThe details matter when you're building your dream car. Every bolt is meticulously chosen for not only function, bu...

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    $163.00
    $163.00 - $163.00
    $163.00
    $149.00
    $149.00 - $149.00
    $149.00
    Save 9% Save %
  • Photo - Close Up Photo - Primary Save 10% Save %

    Banks Power Pedal Monster Kit Aptiv GT 150 6 Way w/iDash Pro 07.5-19 Chevy 2500/3500 6.6L

    Banks Power
    $1,163.00
    $1,163.00 - $1,163.00
    $1,163.00
    $1,046.00
    $1,046.00 - $1,046.00
    $1,046.00

    Banks Power Model 64322-CPTotal Throttle Control. Unlike conventional cable throttles, where your pedal is directly attached to the engine's butter...

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    $1,163.00
    $1,163.00 - $1,163.00
    $1,163.00
    $1,046.00
    $1,046.00 - $1,046.00
    $1,046.00
    Save 10% Save %
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    Wehrli Big Hitch Products Billet Aluminum Competition Kill Switch

    Wehrli
    $0.00 - $0.00
    $0.00
    $277.00
    $277.00 - $277.00
    $277.00

    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
    $277.00
    $277.00 - $277.00
    $277.00
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    Premium Balancer Series - Stock Replacement Harmonic Balancer 11-16 GM 6.6L Duramax LML/LGH XDP Xtreme Diesel Performance

    XDP
    $688.00 - $688.00
    $688.00
    $688.00 - $688.00
    $688.00

    The XDP Premium Balancer Series - Stock Replacement Harmonic Balancer XD708 is an ideal replacement for the harmonic balancer on your 6.6L Duramax ...

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    $688.00 - $688.00
    $688.00
    $688.00 - $688.00
    $688.00
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    Power Steering Pump New with Reservoir 2011-2022 Chevrolet Silverado/GMC Sierra 2500HD/3500HD XDP Xtreme Diesel Performance

    XDP
    $447.00 - $447.00
    $447.00
    $447.00 - $447.00
    $447.00

    Restore proper steering performance in your GM 6.6L Duramax LML/L5P with the XDP Power Steering Pump New with Reservoir XD740. Made from all-new co...

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    $447.00 - $447.00
    $447.00
    $447.00 - $447.00
    $447.00
  • responsive-image responsive-image

    Power Steering Pump New with Reservoir 2001-2010 Chevrolet Silverado/GMC Sierra 2500/3500 XDP Xtreme Diesel Performance

    XDP
    $280.00 - $280.00
    $280.00
    $280.00 - $280.00
    $280.00

    Replace that leaking or noisy power steering pump in your GM 6.6L Duramax LB7/LLY/LBZ/LMM with the XDP Power Steering Pump New with Reservoir XD733...

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    $280.00 - $280.00
    $280.00
    $280.00 - $280.00
    $280.00
  • Photo - Unmounted Photo - Primary

    BD Diesel 17-19 Chevrolet/GM Allison Cooler Bypass Delete

    BD Diesel
    $124.00 - $124.00
    $124.00
    $131.00
    $131.00 - $131.00
    $131.00

    BD Diesel Model 1061532Debris in the stock cooler bypass valve can cause it to jam the internal valve, keeping it in recirculation mode. When this ...

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    $124.00 - $124.00
    $124.00
    $131.00
    $131.00 - $131.00
    $131.00
  • Wehrli GMC/Chevrolet LLY/LBZ/LMM Duramax 6.6L w S400 Single Turbo 3in Down Pipe - Black. Wehrli GMC/Chevrolet LLY/LBZ/LMM Duramax 6.6L w S400 Single Turbo 3in Down Pipe - Black.

    Wehrli GMC/Chevrolet LLY/LBZ/LMM Duramax 6.6L w S400 Single Turbo 3in Down Pipe - Black

    Wehrli
    $0.00 - $0.00
    $0.00
    $357.00
    $357.00 - $357.00
    $357.00

    Wehrli Model WCF100811Wehrli GMC/Chevrolet LLY/LBZ/LMM Duramax 6.6L w S400 Single Turbo 3in Down Pipe - Black For use with WCFab S400 Single Turbo ...

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    $0.00 - $0.00
    $0.00
    $357.00
    $357.00 - $357.00
    $357.00
  • Lund 15-19 Sierra Silverado 2500/3500 (8ft. Bed) Genesis Elite Roll Up Tonneau Cover - Black. Lund 15-19 Sierra Silverado 2500/3500 (8ft. Bed) Genesis Elite Roll Up Tonneau Cover - Black. Save 39% Save %

    Lund 15-19 Sierra Silverado 2500/3500 (8ft. Bed) Genesis Elite Roll Up Tonneau Cover - Black

    LUND
    $993.00
    $993.00 - $993.00
    $993.00
    $608.00
    $608.00 - $608.00
    $608.00

    LUND Model 96894Genesis Roll-Up Tonneau cover is a low profile, soft top, truck bed cover that rolls up in seconds, allowing complete access to the...

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    $993.00
    $993.00 - $993.00
    $993.00
    $608.00
    $608.00 - $608.00
    $608.00
    Save 39% Save %
  • S&S Diesel Motorsport L5P Duramax Injectors (2017+)- Set. S&S Diesel Motorsport L5P Duramax Injectors (2017+)- Set.

    S&S Diesel Motorsport L5P Duramax Injectors (2017+)- Set

    S&S
    $5,255.00 - $7,797.00
    $5,255.00 - $7,797.00
    $5,255.00 - $7,797.00
    $5,255.00

    S&S Diesel Motorsport L5P Duramax Injectors (2017+)- Set S&S Upgrades Proprietary nozzle honing process for clean and consistent holes Noz...

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    $5,255.00 - $7,797.00
    $5,255.00 - $7,797.00
    $5,255.00 - $7,797.00
    $5,255.00
  • S&S Diesel Motorsport LLY Duramax (2004.5-2005) Injectors -Set. S&S Diesel Motorsport LLY Duramax (2004.5-2005) Injectors -Set.

    S&S Diesel Motorsport LLY Duramax (2004.5-2005) Injectors -Set

    S&S
    $4,849.00 - $9,389.00
    $4,849.00 - $9,389.00
    $4,849.00 - $9,389.00
    $4,849.00

    (SET) S&S Upgrades Proprietary nozzle honing process for clean and consistent holes Nozzles flow-matched to 1% variance per set, using OE st...

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    $4,849.00 - $9,389.00
    $4,849.00 - $9,389.00
    $4,849.00 - $9,389.00
    $4,849.00
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    Wehrli 15-19 Chevy HD Lower Valance Filler Panel License Plate Mount Bracket

    Wehrli
    $0.00 - $0.00
    $0.00
    $65.00
    $65.00 - $65.00
    $65.00

    Wehrli Model WCF100156Wehrli 15-19 Chevy HD Lower Valance Filler Panel License Plate Mount Bracket Mounts between WCFAB Lower Valance Filler Pane...

    View full details
    $0.00 - $0.00
    $0.00
    $65.00
    $65.00 - $65.00
    $65.00
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    Wehrli 15-19 Chevrolet 2500/3500 Lower Valance Panel Kit w/Tow Hook Cut Outs- Raw Finish

    Wehrli
    $0.00 - $0.00
    $0.00
    $324.00
    $324.00 - $324.00
    $324.00

    Wehrli Model WCF100425Wehrli 15-19 Chevrolet 2500/3500 Front Bumper Valance Filler Panel Kit w/Tow Hook Cut Outs- Raw Finish Removing the OEM plast...

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    $0.00 - $0.00
    $0.00
    $324.00
    $324.00 - $324.00
    $324.00
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    Wehrli 99-23 GM Billet Coolant Heater Core Firewall Fitting

    Wehrli
    $0.00 - $0.00
    $0.00
    $58.00
    $58.00 - $58.00
    $58.00

    Wehrli Model 100155 *ALLOW 5-7 DAY LEAD TIME FOR SHIPMENT!Wehrli 99-23 GM Billet Coolant Heater Core Firewall Fitting The factory plastic GM Coolan...

    View full details
    $0.00 - $0.00
    $0.00
    $58.00
    $58.00 - $58.00
    $58.00
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    Fleece PowerFlo® Lift Pump for 2007.5-2010 LMM Duramax

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $1,133.00
    $1,133.00 - $1,133.00
    $1,133.00

    Fleece Performance Model FPE-34790 The PowerFlo lift pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Per...

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    $0.00 - $0.00
    $0.00
    $1,133.00
    $1,133.00 - $1,133.00
    $1,133.00
  • responsive-image responsive-image

    Edge Products 98653 EAS Shift-on-the-fly Accessory

    Edge
    $390.00 - $390.00
    $390.00
    $390.00 - $390.00
    $390.00

    Edge Model 98653The Edge Products 98653 EAS Shift-On-The-Fly Accessory gives you the ability to change custom tunes on your Insight CS2, CTS2, or C...

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    $390.00 - $390.00
    $390.00
    $390.00 - $390.00
    $390.00
  • S&S Diesel Motorsport LB7 SAC00® Injector - Reman or New Set. S&S Diesel Motorsport LB7 SAC00® Injector - Reman or New Set.

    S&S Diesel Motorsport LB7 01-04 SAC00® Injector - Reman or New Set

    S&S
    $3,368.00 - $3,844.00
    $3,368.00 - $3,844.00
    $3,368.00 - $3,844.00
    $3,368.00

    S&S Model LB7-00SAC-R-SET (Reman) or LB7-00SAC-SET (New) LB7 SAC00® Injector - Set The S&S Diesel Motorsport SAC00® injectors are a game-ch...

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    $3,368.00 - $3,844.00
    $3,368.00 - $3,844.00
    $3,368.00 - $3,844.00
    $3,368.00
  • S&S Diesel Motorsport Duramax 10mm CP3 (1,325 mm3 /rev displacement) New. S&S Diesel Motorsport Duramax 12mm CP3 High Speed (1,590 mm3 /rev displacement) -New.

    S&S Diesel Motorsport Duramax 12mm CP3 High Speed (1,590 mm3 /rev displacement) -New

    S&S
    $3,685.00 - $3,685.00
    $3,685.00
    $3,685.00 - $3,685.00
    $3,685.00

    S&S Model CP3-DMX-12-HSS&S Diesel Motorsport Duramax 12mm CP3 High Speed (1,590 mm3 /rev displacement) | New LBZ-based. 2001-2010 Duramax T...

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    $3,685.00 - $3,685.00
    $3,685.00
    $3,685.00 - $3,685.00
    $3,685.00
  • S&S Diesel Motorsport Duramax 12mm CP3 (1,590 mm3 /rev displacement) -New. S&S Diesel Motorsport Duramax 12mm CP3 (1,590 mm3 /rev displacement) -New.

    S&S Diesel Motorsport Duramax 12mm CP3 (1,590 mm3 /rev displacement) -New

    S&S
    $3,543.00 - $3,543.00
    $3,543.00
    $3,543.00 - $3,543.00
    $3,543.00

    S&S Model CP3-DMX-12S&S Diesel Motorsport Duramax 12mm CP3 (1,590 mm3 /rev displacement) | New LBZ-based. 2001-2010 Duramax Trucks 2001-200...

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    $3,543.00 - $3,543.00
    $3,543.00
    $3,543.00 - $3,543.00
    $3,543.00
  • S&S Diesel Motorsport Duramax SuperSport CP3 (higher output >3500rpm) - New. S&S Diesel Motorsport Duramax SuperSport CP3 (higher output >3500rpm) - New.

    S&S Diesel Motorsport Duramax SuperSport CP3 (higher output >3500rpm) - New

    S&S
    $1,602.00 - $1,602.00
    $1,602.00
    $1,602.00 - $1,602.00
    $1,602.00

    S&S Model CP3-DMX-SSS&S Diesel Motorsport Duramax SuperSport CP3 (higher output >3500rpm) S&S Duramax CP3 pumps are built from brand...

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    $1,602.00 - $1,602.00
    $1,602.00
    $1,602.00 - $1,602.00
    $1,602.00
  • 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/ 14mm Pump - Competition Use Only

    S&S
    $5,527.00 - $5,527.00
    $5,527.00
    $5,527.00 - $5,527.00
    $5,527.00

    S&S Model L5P-CP3-14S&S Diesel Motorsport L5P CP3 conversion kit w/ 14mm Pump - Competition Use Only Will not work on stock trucks! No Ship...

    View full details
    $5,527.00 - $5,527.00
    $5,527.00
    $5,527.00 - $5,527.00
    $5,527.00
  • 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/ 12mm Pump - Competition Use Only

    S&S
    $4,827.00 - $4,827.00
    $4,827.00
    $4,827.00 - $4,827.00
    $4,827.00

    S&S Model L5P-CP3-12S&S Diesel Motorsport L5P CP3 conversion kit w/ 12mm Pump - Competition Use Only Will not work on stock trucks! No Ship...

    View full details
    $4,827.00 - $4,827.00
    $4,827.00
    $4,827.00 - $4,827.00
    $4,827.00
  • S&S Diesel Motorsport LML Fuel Return Line Assembly. S&S Diesel Motorsport LML Fuel Return Line Assembly.

    S&S Diesel Motorsport LML Fuel Return Line Assembly

    S&S
    $203.00 - $203.00
    $203.00
    $203.00 - $203.00
    $203.00

    S&S Model LML-RTNLINE-ASM S&S Diesel Motorsport LML Fuel Return Line Assembly *Generic Image

    $203.00 - $203.00
    $203.00
    $203.00 - $203.00
    $203.00
  • S&S Diesel Motorsport LML CP4 to Rail - RH Side (12670475). S&S Diesel Motorsport LML CP4 to Rail - RH Side (12670475).

    S&S Diesel Motorsport LML CP4 to Rail - RH Side (12670475)

    S&S
    $93.00 - $93.00
    $93.00
    $93.00 - $93.00
    $93.00

    S&S Model LML-HPLINE-CP4-RAIL-RHS&S Diesel Motorsport LML CP4 to Rail - RH Side (12670475) *Generic image

    $93.00 - $93.00
    $93.00
    $93.00 - $93.00
    $93.00

 

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