Skip to content
Free Shipping on most orders over $150.00. Buy now, pay later with ShopPay.
Free Shipping on most orders over $150.00. Buy now, pay later with ShopPay.

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.

Filters

  • 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 DBV4 Single Stage Relief Valve Internal Return, LLY/LBZ/LMM, 6.7 style - 2200bar

    S&S
    $ 5,779.00 - $ 5,779.00
    $ 5,779.00
    $ 5,779.00 - $ 5,779.00
    $ 5,779.00

    S&S Model PRV-I-2200-1SDBV4 Single Stage Relief Valve Internal Return, LLY/LBZ/LMM, 6.7 style - 2200bar Generic Image

    $ 5,779.00 - $ 5,779.00
    $ 5,779.00
    $ 5,779.00 - $ 5,779.00
    $ 5,779.00
  • responsive-image responsive-image

    Smeding Diesel 2020-2024 L5P Duramax Differential Cover

    Smeding
    $ 5,988.00 - $ 5,988.00
    $ 5,988.00
    $ 5,988.00 - $ 5,988.00
    $ 5,988.00

    This rear differential cover has been meticulously engineered to minimize friction and maximize lubrication of your gear set. If you want to keep y...

    View full details
    $ 5,988.00 - $ 5,988.00
    $ 5,988.00
    $ 5,988.00 - $ 5,988.00
    $ 5,988.00
  • responsive-image responsive-image Save 10% Save %

    Banks Power 2022+ Chevrolet 1500 / 2024+ Chevrolet 2500/3500 iDash Stealth Pod Mount - Single Gauge

    Banks Power
    $ 2,198.00
    $ 2,198.00 - $ 2,198.00
    $ 2,198.00
    $ 1,978.00
    $ 1,978.00 - $ 1,978.00
    $ 1,978.00

    iDash Stealth Pods are direct-fit gauge mounts that affix to your late 2022+ GM 1500's and 2024+ 2500/3500 factory A-pillar grab handle while con...

    View full details
    $ 2,198.00
    $ 2,198.00 - $ 2,198.00
    $ 2,198.00
    $ 1,978.00
    $ 1,978.00 - $ 1,978.00
    $ 1,978.00
    Save 10% Save %
  • responsive-image responsive-image Save 10% Save %

    Banks Power 2020 GM 2500/3500 6.6L L5P Boost Tube Upgrade Kit - Red

    Banks Power
    $ 14,071.00
    $ 14,071.00 - $ 14,071.00
    $ 14,071.00
    $ 12,664.00
    $ 12,664.00 - $ 12,664.00
    $ 12,664.00

    Banks massive 3.5 inch boost tubes are the largest on the market, flowing 26-45 percent more air than stock! Smooth mandrel-bent tubes deliver more...

    View full details
    $ 14,071.00
    $ 14,071.00 - $ 14,071.00
    $ 14,071.00
    $ 12,664.00
    $ 12,664.00 - $ 12,664.00
    $ 12,664.00
    Save 10% Save %
  • responsive-image responsive-image Save 10% Save %

    Banks Power 20-22 Chevy/GMC 2500/3500 L5P 6.6L Ram-Air Intake System - Oiled

    Banks Power
    $ 9,979.00
    $ 9,979.00 - $ 9,979.00
    $ 9,979.00
    $ 8,981.00
    $ 8,981.00 - $ 8,981.00
    $ 8,981.00

    A groundbreaking cold air intake featuring the patented Banks Air Mass Control Module. The electronic device allows our engineers to use the Banks ...

    View full details
    $ 9,979.00
    $ 9,979.00 - $ 9,979.00
    $ 9,979.00
    $ 8,981.00
    $ 8,981.00 - $ 8,981.00
    $ 8,981.00
    Save 10% Save %
  • responsive-image responsive-image Save 10% Save %

    Banks Power Pre-Filter (For PN 42141 / 42141-D)

    Banks Power
    $ 889.00
    $ 889.00 - $ 889.00
    $ 889.00
    $ 800.00
    $ 800.00 - $ 800.00
    $ 800.00

    Highly recommended in dirty environments. Keep your Ram-Air Filter protected from large debris, bugs, mud, etc... Built from a breathable material,...

    View full details
    $ 889.00
    $ 889.00 - $ 889.00
    $ 889.00
    $ 800.00
    $ 800.00 - $ 800.00
    $ 800.00
    Save 10% Save %
  • responsive-image responsive-image

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

    ATS Diesel
    $ 27,396.00 - $ 27,396.00
    $ 27,396.00
    $ 27,396.00 - $ 27,396.00
    $ 27,396.00

    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...

    View full details
    $ 27,396.00 - $ 27,396.00
    $ 27,396.00
    $ 27,396.00 - $ 27,396.00
    $ 27,396.00
  • responsive-image responsive-image

    CSF 2001 Chevrolet Silverado 2500HD 6.6L OEM Intercooler

    CSF
    $ 7,110.00 - $ 7,110.00
    $ 7,110.00
    $ 7,110.00 - $ 7,110.00
    $ 7,110.00

    CSF Model 6007CSF 2001 Chevrolet Silverado 2500HD 6.6L OEM Intercooler

    $ 7,110.00 - $ 7,110.00
    $ 7,110.00
    $ 7,110.00 - $ 7,110.00
    $ 7,110.00
  • responsive-image responsive-image

    Pusher Max HD Charge Tube for 2011-2016 Duramax LML Trucks

    Pusher Intakes
    $ 7,257.00 - $ 7,257.00
    $ 7,257.00
    $ 7,257.00 - $ 7,257.00
    $ 7,257.00

    Pusher Model PGD1116BT This product is not emissions compliant. Off-road use only. Pusher Max HD Charge Tube replaces all factory passenger-side ch...

    View full details
    $ 7,257.00 - $ 7,257.00
    $ 7,257.00
    $ 7,257.00 - $ 7,257.00
    $ 7,257.00
  • responsive-image responsive-image

    XDP XTRA Cool Water Pump (With Housing) XD666

    XDP
    $ 2,866.00 - $ 2,866.00
    $ 2,866.00
    $ 2,866.00 - $ 2,866.00
    $ 2,866.00

    XDP Model XD6662001-2005 GM 6.6L Duramax LB7/LLY | 2003-2005 GM Kodiak/Topkick C4500/C5500 6.6L DuramaxThe XDP X-TRA Cool Water Pump (With Housing)...

    View full details
    $ 2,866.00 - $ 2,866.00
    $ 2,866.00
    $ 2,866.00 - $ 2,866.00
    $ 2,866.00
  • responsive-image responsive-image

    Fleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LMM) - Medium Line

    Fleece Performance
    $ 0.00 - $ 0.00
    $ 0.00
    $ 1,724.00
    $ 1,724.00 - $ 1,724.00
    $ 1,724.00

    Fleece Performance Model FPE-TL-LB7-LMM-MED-SERFleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LMM) - Medium Line ...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 1,724.00
    $ 1,724.00 - $ 1,724.00
    $ 1,724.00
  • responsive-image responsive-image

    M14 x 1.5 Lug Nut Set of 32 | Chrome | Open End

    Rough Country
    $ 725.00 - $ 725.00
    $ 725.00
    $ 725.00 - $ 725.00
    $ 725.00

    Secure your new wheels with Rough Countrys Bulge Acorn Style Lug Nuts. These cold-forged lug nuts are plated with a beautiful chrome finish for a l...

    View full details
    $ 725.00 - $ 725.00
    $ 725.00
    $ 725.00 - $ 725.00
    $ 725.00
  • responsive-image responsive-image

    Cold Air Intake For 20-21 Chevrolet Silverado GMC Sierra V8-6.6L L5P Duramax S&B

    S&B
    $ 6,877.00 - $ 6,877.00
    $ 6,877.00
    $ 6,877.00 - $ 6,877.00
    $ 6,877.00

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

    View full details
    $ 6,877.00 - $ 6,877.00
    $ 6,877.00
    $ 6,877.00 - $ 6,877.00
    $ 6,877.00
  • responsive-image responsive-image

    Fleece Performance 11-16 GM 2500-3500 Duramax Fuel Rail Pressure Harness

    Fleece Performance
    $ 0.00 - $ 0.00
    $ 0.00
    $ 1,270.00
    $ 1,270.00 - $ 1,270.00
    $ 1,270.00

    Fleece Performance Model FPE-HAR-DMAX-LML-RPFleece Performance 11-16 GM 2500-3500 Duramax Fuel Rail Pressure Harness Our Fuel Rail Pressure harness...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 1,270.00
    $ 1,270.00 - $ 1,270.00
    $ 1,270.00
  • responsive-image responsive-image

    HD2 Aluminum Running Boards | Crew Cab | Chevy/GMC 1500/2500HD/3500HD (07-19 & Classic)

    Rough Country
    $ 6,894.00 - $ 6,894.00
    $ 6,894.00
    $ 6,894.00 - $ 6,894.00
    $ 6,894.00

    Level up your truck's functionality and style with the Rough Country HD2 Running Boards. Crafted with precision and designed for those who demand t...

    View full details
    $ 6,894.00 - $ 6,894.00
    $ 6,894.00
    $ 6,894.00 - $ 6,894.00
    $ 6,894.00
  • responsive-image responsive-image

    2" Rear Block Kit - GM Truck

    ReadyLift
    $ 3,084.00 - $ 3,084.00
    $ 3,084.00
    $ 3,084.00 - $ 3,084.00
    $ 3,084.00

    Readylift Model 66-3052 QUICK OVERVIEW Chevy/GMC 2" OEM Style Rear Block Kit for 1988-98 GM 1500 2000-2010 GM HD 2500/3500 8-lug Includes new longe...

    View full details
    $ 3,084.00 - $ 3,084.00
    $ 3,084.00
    $ 3,084.00 - $ 3,084.00
    $ 3,084.00
  • responsive-image responsive-image

    Wehrli LB7/LLY/LBZ/LMM Duramax Upper Coolant Pipe Plug

    Wehrli
    $ 0.00 - $ 0.00
    $ 0.00
    $ 740.00
    $ 740.00 - $ 740.00
    $ 740.00

    Wehrli Model WCF205-280Wehrli LB7/LLY/LBZ/LMM Duramax Upper Coolant Pipe Plug

    $ 0.00 - $ 0.00
    $ 0.00
    $ 740.00
    $ 740.00 - $ 740.00
    $ 740.00
  • responsive-image responsive-image

    Wehrli LMM Duramax MAF Sensor Aluminum Weld Bung

    Wehrli
    $ 0.00 - $ 0.00
    $ 0.00
    $ 616.00
    $ 616.00 - $ 616.00
    $ 616.00

    Wehrli Model WCF205-28Wehrli LMM Duramax MAF Sensor Aluminum Weld Bung

    $ 0.00 - $ 0.00
    $ 0.00
    $ 616.00
    $ 616.00 - $ 616.00
    $ 616.00
  • responsive-image responsive-image

    Wehrli 20-24 Duramax L5P Auxiliary Coolant Tank Kit

    Wehrli
    $ 0.00 - $ 0.00
    $ 0.00
    $ 4,383.00
    $ 4,383.00 - $ 4,383.00
    $ 4,383.00

    Wehrli Model WCF100224 2020-2025 L5P Duramax Fabricated Aluminum Auxiliary Coolant Tank Kit, mounts in OEM location. Dress up your engine bay by ...

    View full details
    $ 0.00 - $ 0.00
    $ 0.00
    $ 4,383.00
    $ 4,383.00 - $ 4,383.00
    $ 4,383.00
  • responsive-image responsive-image Save 5% Save %

    DDP Common Rail High Pressure Diesel Injection System Cleaner

    DDP
    $ 908.00
    $ 908.00 - $ 908.00
    $ 908.00
    $ 862.00
    $ 862.00 - $ 862.00
    $ 862.00

    DDP Model DDPCRCLEANHeavy duty, one-time use injection system cleaner. Cleans the entire fuel system! This product removes contamination, resin and...

    View full details
    $ 908.00
    $ 908.00 - $ 908.00
    $ 908.00
    $ 862.00
    $ 862.00 - $ 862.00
    $ 862.00
    Save 5% Save %
  • responsive-image responsive-image

    Cold Air Intake For 17-19 Chevrolet Silverado GMC Sierra V8-6.6L L5P Duramax S&B

    S&B
    $ 6,877.00 - $ 6,877.00
    $ 6,877.00
    $ 6,877.00 - $ 6,877.00
    $ 6,877.00

    Maximum Performance Our cold air intake for the 2017-2019 Silverado / Sierra Duramax 6.6L was engineered to minimize air restriction and flows 49.9...

    View full details
    $ 6,877.00 - $ 6,877.00
    $ 6,877.00
    $ 6,877.00 - $ 6,877.00
    $ 6,877.00
  • responsive-image responsive-image

    Exergy Dodge Cummins 6.7L/Chevrolet Duramax LLY/LBZ/LMM 2200 Bar (32000 PSI) Pressure Relief Valve

    Exergy
    $ 5,080.00 - $ 5,080.00
    $ 5,080.00
    $ 5,080.00 - $ 5,080.00
    $ 5,080.00

    Exergy Model E07 00014Exergy Dodge Cummins 6.7L/Chevrolet Duramax LLY/LBZ/LMM 2200 Bar (32,000 PSI) Pressure Relief Valve

    $ 5,080.00 - $ 5,080.00
    $ 5,080.00
    $ 5,080.00 - $ 5,080.00
    $ 5,080.00
  • responsive-image responsive-image Save 5% Save %

    DDP 01-04 Chevrolet Duramax 6.6L LB7 Stock Reman Injector (Single)

    DDP
    $ 6,260.00
    $ 6,260.00 - $ 6,260.00
    $ 6,260.00
    $ 5,947.00
    $ 5,947.00 - $ 5,947.00
    $ 5,947.00

    DDP Model DDPLB7-STKDuramax 01-04 LB7 Injector: Remanufactured stock power level injector. Every internal component replaced with new OE components...

    View full details
    $ 6,260.00
    $ 6,260.00 - $ 6,260.00
    $ 6,260.00
    $ 5,947.00
    $ 5,947.00 - $ 5,947.00
    $ 5,947.00
    Save 5% Save %
  • responsive-image responsive-image

    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY New Stock Replacement Left Hand Fuel Rail

    Exergy
    $ 3,992.00 - $ 3,992.00
    $ 3,992.00
    $ 3,992.00 - $ 3,992.00
    $ 3,992.00

    Exergy 04.5-05 Chevy Duramax LLY New Stock Replacement LH Fuel Rail

    $ 3,992.00 - $ 3,992.00
    $ 3,992.00
    $ 3,992.00 - $ 3,992.00
    $ 3,992.00

 

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