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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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    Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 1 & 8)

    Fleece Performance
    $62.99 - $62.99
    $62.99
    $69.99
    $69.99 - $69.99
    $69.99

    Fleece Performance Model FPE-FL-LLY-18LLY Duramax High Pressure Injection Line (Number 1 and Number 8). Replacement high pressure fuel lines from F...

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    $62.99 - $62.99
    $62.99
    $69.99
    $69.99 - $69.99
    $69.99
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    Fleece Performance 04.5-05 GM Duramax 2500-3500 LLY Remanufactured Freedom Cylinder Head (Passenger)

    Fleece Performance
    $989.10 - $989.10
    $989.10
    $1,099.00
    $1,099.00 - $1,099.00
    $1,099.00

    Fleece Performance Model FPE-61-10002-PIntroducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in ou...

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    $989.10 - $989.10
    $989.10
    $1,099.00
    $1,099.00 - $1,099.00
    $1,099.00
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    Fleece Performance 04.5-05 GM Duramax 2500-3500 LLY Remanufactured Freedom Cylinder Head (Driver)

    Fleece Performance
    $989.10 - $989.10
    $989.10
    $1,099.00
    $1,099.00 - $1,099.00
    $1,099.00

    Fleece Performance Model FPE-61-10002-DIntroducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in ou...

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    $989.10 - $989.10
    $989.10
    $1,099.00
    $1,099.00 - $1,099.00
    $1,099.00
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    Fleece 04-05 GM 2500/3500 Duramax High Pressure Injection Line Kit

    Fleece Performance
    $440.10 - $440.10
    $440.10
    $489.00
    $489.00 - $489.00
    $489.00

    Fleece Performance Model FPE-FL-DMAX-LLY-SETLLY Duramax High Pressure Injection Line Kit. Replacement high pressure fuel lines from Fleece Performa...

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    $440.10 - $440.10
    $440.10
    $489.00
    $489.00 - $489.00
    $489.00
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    Fleece Performance 06-10 GM Duramax LBZ/LMM CP3 Injection Pump

    Fleece Performance
    $1,151.10 - $1,151.10
    $1,151.10
    $1,279.00
    $1,279.00 - $1,279.00
    $1,279.00

    Fleece Performance Model FPE-DMAX-CP3Brand new Bosch CP3 for the 2006-2010 Duramax from Fleece Performance! Direct drop in replacement for stock i...

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    $1,151.10 - $1,151.10
    $1,151.10
    $1,279.00
    $1,279.00 - $1,279.00
    $1,279.00
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    Fleece Performance 01-04 GM 2500/3500 6.6L LB7 Duramax SureFlo Performance Sending Unit

    Fleece Performance
    $323.10 - $323.10
    $323.10
    $359.00
    $359.00 - $359.00
    $359.00

    Fleece Performance Model FPE-SF-GM-0104Problem: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to ...

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    $323.10 - $323.10
    $323.10
    $359.00
    $359.00 - $359.00
    $359.00
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    Fleece Performance 01-02 GM Duramax 6.6L LB7 Allison TapShifter

    Fleece Performance
    $359.10 - $359.10
    $359.10
    $399.00
    $399.00 - $399.00
    $399.00

    Fleece Performance Model FPE-TAPSHIFTER12Replacement coolant bypass house with stainless steel braiding for our Common Rail/VP44 Cummins Coolant By...

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    $359.10 - $359.10
    $359.10
    $399.00
    $399.00 - $399.00
    $399.00
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    Fleece 01-04 GM 2500/3500 Duramax LB7 Fuel Injection Line (4 & 5)

    Fleece Performance
    $62.09 - $62.09
    $62.09
    $68.99
    $68.99 - $68.99
    $68.99

    Fleece Performance Model FPE-FL-LB7-45Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing th...

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    $62.09 - $62.09
    $62.09
    $68.99
    $68.99 - $68.99
    $68.99
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    Fleece Performance 01-04 GM 2500/3500 Duramax LB7 Outer Injector Connector Pigtail

    Fleece Performance
    $26.99 - $26.99
    $26.99
    $29.99
    $29.99 - $29.99
    $29.99

    Fleece Performance Model FPE-HAR-DMAX-LB7-INJ-PTReplacement connector with 6 inch pigtail for use on the 6.6L Duramax engine and other vehicle appl...

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    $26.99 - $26.99
    $26.99
    $29.99
    $29.99 - $29.99
    $29.99
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    Fleece 01-04 GM 2500/3500 Duramax LB7 Fuel Injection Line (3 & 6)

    Fleece Performance
    $62.09 - $62.09
    $62.09
    $68.99
    $68.99 - $68.99
    $68.99

    Fleece Performance Model FPE-FL-LB7-36Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing th...

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    $62.09 - $62.09
    $62.09
    $68.99
    $68.99 - $68.99
    $68.99
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    Fleece 01-04 GM 2500/3500 Duramax LB7 Fuel Injection Line (2 & 7)

    Fleece Performance
    $62.09 - $62.09
    $62.09
    $68.99
    $68.99 - $68.99
    $68.99

    Fleece Performance Model FPE-FL-LB7-27Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing th...

    View full details
    $62.09 - $62.09
    $62.09
    $68.99
    $68.99 - $68.99
    $68.99
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    Fleece 01-04 GM 2500/3500 Duramax LB7 Fuel Injection Line (1 & 8)

    Fleece Performance
    $62.09 - $62.09
    $62.09
    $68.99
    $68.99 - $68.99
    $68.99

    Fleece Performance Model FPE-FL-LB7-18Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing th...

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    $62.09 - $62.09
    $62.09
    $68.99
    $68.99 - $68.99
    $68.99
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    Fleece 01-04 GM Silverado/Sierra 2500 6.6L-V8 Duramax Truck PowerFlo In-tank Lift Pump

    Fleece Performance
    $584.10 - $584.10
    $584.10
    $649.00
    $649.00 - $649.00
    $649.00

    Fleece Performance Model FPE-PF-GM-0104Fleece Performance Model FPE-PF-GM-0104Fleece 01-04 GM Silverado/Sierra 2500 6.6L-V8 Duramax Truck PowerFlo ...

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    $584.10 - $584.10
    $584.10
    $649.00
    $649.00 - $649.00
    $649.00
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    Fleece Performance 01-04 GM Duramax 6.6L LB7 Intake Air Heater Delete Plug

    Fleece Performance
    $34.16 - $34.16
    $34.16
    $37.95
    $37.95 - $37.95
    $37.95

    Fleece Performance Model FPE-LB7-IAH-DELETEThe Fleece Performance Intake Air Heater Delete is a simple way to remove the air intake heater on your ...

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    $34.16 - $34.16
    $34.16
    $37.95
    $37.95 - $37.95
    $37.95
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    Fleece Performance 01-04 GM Duramax 6.6L LB7 63mm Billet LB7 Cheetah Turbocharger

    Fleece Performance
    $1,799.10 - $1,799.10
    $1,799.10
    $1,999.00
    $1,999.00 - $1,999.00
    $1,999.00

    Fleece Performance Model FPE-LB7-63Wake up your 2001-2004 LB7 with the drop in replacement Fleece Performance LB7 Cheetah Turbocharger. Featuring a...

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    $1,799.10 - $1,799.10
    $1,799.10
    $1,999.00
    $1,999.00 - $1,999.00
    $1,999.00
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    Fleece Performance 01-04 GM Duramax 6.6L LB7 High Flow LB7 Intake Horn

    Fleece Performance
    $89.78 - $89.78
    $89.78
    $99.75
    $99.75 - $99.75
    $99.75

    Fleece Performance Model FPE-INTAKEHORNIncrease your LB7?s potential with this simple, but effective upgrade. Back-to-back dyno pulls showed an inc...

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    $89.78 - $89.78
    $89.78
    $99.75
    $99.75 - $99.75
    $99.75
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    Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Driver Side)

    Fleece Performance
    $989.10 - $989.10
    $989.10
    $1,099.00
    $1,099.00 - $1,099.00
    $1,099.00

    Fleece Performance Model FPE-61-10001-D-CLFreedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and m...

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    $989.10 - $989.10
    $989.10
    $1,099.00
    $1,099.00 - $1,099.00
    $1,099.00
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    Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Pssgr Side)

    Fleece Performance
    $989.10 - $989.10
    $989.10
    $1,099.00
    $1,099.00 - $1,099.00
    $1,099.00

    Fleece Performance Model FPE-61-10001-P-CLFreedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and m...

    View full details
    $989.10 - $989.10
    $989.10
    $1,099.00
    $1,099.00 - $1,099.00
    $1,099.00
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    Fleece Performance 17-19 GM 2500/3500 Duramax LP5 Fan Extension Harness

    Fleece Performance
    $41.39 - $41.39
    $41.39
    $45.99
    $45.99 - $45.99
    $45.99

    Fleece Performance Model FPE-HAR-DMAX-FAN-L5POur replacement fan extension harness for the 2017-2019 L5P Duramax allows you to repair a broken or d...

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    $41.39 - $41.39
    $41.39
    $45.99
    $45.99 - $45.99
    $45.99
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    Fleece Performance 17-19 GM Duramax 2500/3500 Heavy Duty Transmission Cooler lines

    Fleece Performance
    $296.99 - $296.99
    $296.99
    $329.99
    $329.99 - $329.99
    $329.99

    Fleece Performance Model FPE-TL-L5P-1719Replace your leaking transmission lines with our heavy duty, high flow, flexible transmission lines. Our ki...

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    $296.99 - $296.99
    $296.99
    $329.99
    $329.99 - $329.99
    $329.99
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    Fleece Performance 17-19 GM Duramax 6.6L L5P Fuel Filter Upgrade Kit

    Fleece Performance
    $206.10 - $206.10
    $206.10
    $229.00
    $229.00 - $229.00
    $229.00

    Fleece Performance Model FPE-L5P-FFBA-1719The Fleece Performance L5P fuel filter upgrade kit allows you to seamlessly change over from the stock ca...

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    $206.10 - $206.10
    $206.10
    $229.00
    $229.00 - $229.00
    $229.00
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    Fleece Performance 2020 GM Duramax 6.6L L5P w/Short Bed Fuel Filter Upgrade Kit

    Fleece Performance
    $206.10 - $206.10
    $206.10
    $229.00
    $229.00 - $229.00
    $229.00

    Fleece Performance Model FPE-L5P-FFBA-20The Fleece Performance L5P fuel filter upgrade kit allows you to seamlessly change over from the stock cart...

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    $206.10 - $206.10
    $206.10
    $229.00
    $229.00 - $229.00
    $229.00
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    Fleece Performance 17-22 GM 2500/3500 Duramax Replacement Fuel Injector Connector w/Pigtail (8 Pack)

    Fleece Performance
    $269.99 - $269.99
    $269.99
    $299.99
    $299.99 - $299.99
    $299.99

    Fleece Performance Model FPE-HAR-L5P-INJ-PT-8PA common failure point on the L5P Duramax, our replacement connector with 4.5 inch pigtail for the fu...

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    $269.99 - $269.99
    $269.99
    $299.99
    $299.99 - $299.99
    $299.99
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    Fleece Performance 17-22 GM 2500/3500 L5P Duramax Sensor Connector w/4.5in Pigtail

    Fleece Performance
    $34.19 - $34.19
    $34.19
    $37.99
    $37.99 - $37.99
    $37.99

    Fleece Performance Model FPE-HAR-MU-PT-1Replacement connector with 4.5 inch pigtail for use in multiple locations on the Duramax, Ram with Cummins,...

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    $34.19 - $34.19
    $34.19
    $37.99
    $37.99 - $37.99
    $37.99

 

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