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

  • responsive-image responsive-image

    Exergy 01-04 Chevrolet Duramax 6.6L LB7 Reman 150% Over Injector - Set of 8

    Exergy
    $8,194.00 - $8,194.00
    $8,194.00
    $8,194.00 - $8,194.00
    $8,194.00

    Exergy Model E01 10150 Exergy 01-04 Chevy Duramax LB7 Reman 150% Over Injector (Set of 8) 8 LB7 Reman Bosch Injectors 150% Over Copper Washers O-r...

    View full details
    $8,194.00 - $8,194.00
    $8,194.00
    $8,194.00 - $8,194.00
    $8,194.00
  • responsive-image responsive-image Save 14% Save %

    DDP Duramax 01-04 LB7 Brand New Injector Set - 75 (45% Over)

    DDP
    $6,164.00
    $6,164.00 - $6,164.00
    $6,164.00
    $5,271.00
    $5,271.00 - $5,271.00
    $5,271.00

    DDP Model DDPNLB7-75Duramax 01-04 LB7 Injector Set: Brand New injectors flowing at 45 percent over, capable of 725 RWHP with proper supporting modi...

    View full details
    $6,164.00
    $6,164.00 - $6,164.00
    $6,164.00
    $5,271.00
    $5,271.00 - $5,271.00
    $5,271.00
    Save 14% Save %
  • responsive-image responsive-image

    Exergy 01-04 Chevrolet Duramax 6.6L LB7 Reman 60% Over Injector - Set of 8

    Exergy
    $5,532.00 - $5,532.00
    $5,532.00
    $5,532.00 - $5,532.00
    $5,532.00

    Exergy Model E01 10107Exergy 01-04 Chevrolet Duramax 6.6L LB7 Reman 60% Over Injector - Set of 8 8 LB7 Reman Bosch Injectors 60% Over Copper Washe...

    View full details
    $5,532.00 - $5,532.00
    $5,532.00
    $5,532.00 - $5,532.00
    $5,532.00
  • responsive-image responsive-image

    Exergy 01-04 Chevrolet Duramax 6.6L LB7 Reman 45% Over Injector - Set of 8

    Exergy
    $5,235.00 - $5,235.00
    $5,235.00
    $5,235.00 - $5,235.00
    $5,235.00

    Exergy Model E01 10106Exergy 01-04 Chevrolet Duramax 6.6L LB7 Reman 45% Over Injector - Set of 8 8 LB7 Reman Bosch Injectors 45% Over Copper Washe...

    View full details
    $5,235.00 - $5,235.00
    $5,235.00
    $5,235.00 - $5,235.00
    $5,235.00
  • responsive-image responsive-image

    Exergy 01-04 Chevrolet Duramax 6.6L LB7 Reman 30% Over Injector - Set of 8

    Exergy
    $5,086.00 - $5,086.00
    $5,086.00
    $5,086.00 - $5,086.00
    $5,086.00

    Exergy Model E01 10105 Exergy 01-04 Chevy Duramax LB7 Reman 30% Over Injector (Set of 8) 8 LB7 Reman Bosch Injectors 30% Over Copper Washers O-rin...

    View full details
    $5,086.00 - $5,086.00
    $5,086.00
    $5,086.00 - $5,086.00
    $5,086.00
  • responsive-image responsive-image

    Exergy 01-04 Chevrolet Duramax 6.6L LB7 Reman 100% Over Injector - Set of 8

    Exergy
    $5,977.00 - $5,977.00
    $5,977.00
    $5,977.00 - $5,977.00
    $5,977.00

    Exergy Model E01 10108 Exergy 01-04 Chevy Duramax LB7 Reman 100% Over Injector (Set of 8) 8 LB7 Reman Bosch Injectors 100% Over Copper Washers O-...

    View full details
    $5,977.00 - $5,977.00
    $5,977.00
    $5,977.00 - $5,977.00
    $5,977.00
  • responsive-image responsive-image Save 15% Save %

    DDP Duramax 01-04 LB7 Brand New Injector Set - 50 (25% Over)

    DDP
    $5,879.00
    $5,879.00 - $5,879.00
    $5,879.00
    $5,026.00
    $5,026.00 - $5,026.00
    $5,026.00

    DDP Model DDPNLB7-50Duramax 01-04 LB7 Injector Set: Brand New injector set at 25 percent over, approximately 50 RWHP over stock. Injector set is ca...

    View full details
    $5,879.00
    $5,879.00 - $5,879.00
    $5,879.00
    $5,026.00
    $5,026.00 - $5,026.00
    $5,026.00
    Save 15% Save %
  • responsive-image responsive-image Save 15% Save %

    DDP Duramax 01-04 LB7 Brand New Injector Set - SAC Nozzle 100% Over

    DDP
    $6,736.00
    $6,736.00 - $6,736.00
    $6,736.00
    $5,759.00
    $5,759.00 - $5,759.00
    $5,759.00

    DDP Model DDPNLB7-200Duramax 01-04 LB7 Injector Set: Brand New injector set. SAC Nozzles flowing at 100 percent over with injector body modificatio...

    View full details
    $6,736.00
    $6,736.00 - $6,736.00
    $6,736.00
    $5,759.00
    $5,759.00 - $5,759.00
    $5,759.00
    Save 15% Save %
  • responsive-image responsive-image Save 14% Save %

    DDP Duramax 01-04 LB7 Brand New Injector Set - SAC Nozzle 150% Over

    DDP
    $7,022.00
    $7,022.00 - $7,022.00
    $7,022.00
    $6,004.00
    $6,004.00 - $6,004.00
    $6,004.00

    DDP Model DDPNLB7-300Duramax 01-04 LB7 Injector Set: Brand New injector set. SAC Nozzles at 150 percent over with injector body modifications for a...

    View full details
    $7,022.00
    $7,022.00 - $7,022.00
    $7,022.00
    $6,004.00
    $6,004.00 - $6,004.00
    $6,004.00
    Save 14% Save %
  • responsive-image responsive-image Save 14% Save %

    DDP Duramax 01-04 LB7 Brand New Injector Set - 100 (60% Over)

    DDP
    $6,450.00
    $6,450.00 - $6,450.00
    $6,450.00
    $5,515.00
    $5,515.00 - $5,515.00
    $5,515.00

    DDP Model DDPNLB7-100Duramax 01-04 LB7 Injector Set: Brand New injector set flowing at 60 percent over, capable of 750-800 RWHP. Modified or Dual C...

    View full details
    $6,450.00
    $6,450.00 - $6,450.00
    $6,450.00
    $5,515.00
    $5,515.00 - $5,515.00
    $5,515.00
    Save 14% Save %
  • responsive-image responsive-image Save 15% Save %

    DDP Duramax 01-04 LB7 Brand New Stock CP3

    DDP
    $2,000.00
    $2,000.00 - $2,000.00
    $2,000.00
    $1,710.00
    $1,710.00 - $1,710.00
    $1,710.00

    DDP Model DDPNCP3-303Duramax 01-04 LB7: Brand New replacement stock CP3 injection pump. No core charge. Details: Liter: 6.6 Engine: LB7 Duramax Ye...

    View full details
    $2,000.00
    $2,000.00 - $2,000.00
    $2,000.00
    $1,710.00
    $1,710.00 - $1,710.00
    $1,710.00
    Save 15% Save %
  • responsive-image responsive-image

    BD Diesel 2001-2004 Chevy Duramax LB7 Premium Performance Plus Injector (0986435502)

    BD Diesel
    $496.00 - $496.00
    $496.00
    $523.00
    $523.00 - $523.00
    $523.00

    BD Diesel Performance is unique among its peers in that it designs, manufactures and distributes a wide range of products specifically engineered f...

    View full details
    $496.00 - $496.00
    $496.00
    $523.00
    $523.00 - $523.00
    $523.00
  • responsive-image responsive-image

    BD Diesel Reman Injector Set With Install Kit 2001-2004 LB7 Duramax 6.6L

    BD Diesel
    $3,710.00 - $3,710.00
    $3,710.00
    $3,903.00
    $3,903.00 - $3,903.00
    $3,903.00

    All-in-one kit for doing an injector install on an LB7 Duramax engine. Includes BD-Built stock replacement injectors (8) injector lines (8), valve ...

    View full details
    $3,710.00 - $3,710.00
    $3,710.00
    $3,903.00
    $3,903.00 - $3,903.00
    $3,903.00
  • responsive-image responsive-image

    BD Diesel Stock Replacement Injector 2001-2004 LB7 Duramax

    BD Diesel
    $452.00 - $452.00
    $452.00
    $476.00
    $476.00 - $476.00
    $476.00

    BD-Built Stock replacement injectors are OE quality, assembled using OE procedures, and fully calibrated and tested to ensure perfect operatio...

    View full details
    $452.00 - $452.00
    $452.00
    $476.00
    $476.00 - $476.00
    $476.00
  • responsive-image responsive-image

    BD Diesel 2001-2004 Chevy Duramax LB7 6.6L Up-Pipe Only for Passenger Side

    BD Diesel
    $408.00 - $408.00
    $408.00
    $429.00
    $429.00 - $429.00
    $429.00

    Replaces the factory exhaust up-pipes (exhaust manifold to the turbo) which are prone to leakage due to the deterioration. BD up-pipes are designed...

    View full details
    $408.00 - $408.00
    $408.00
    $429.00
    $429.00 - $429.00
    $429.00
  • responsive-image responsive-image

    BD Diesel Valve Body - 2001-2004 Duramax LB7 Allison 1000

    BD Diesel
    $1,635.00 - $1,635.00
    $1,635.00
    $1,722.00
    $1,722.00 - $1,722.00
    $1,722.00

    BD Diesel Valve Body - 2001-2004 Duramax LB7 Allison 1000 BD's exchange valve bodies are modified, tuned and tested to provide optimum performance...

    View full details
    $1,635.00 - $1,635.00
    $1,635.00
    $1,722.00
    $1,722.00 - $1,722.00
    $1,722.00
  • responsive-image responsive-image

    BD Diesel TapShifter - Chevy 2001-2002 Duramax 6.6L Allison 100

    BD Diesel
    $692.00 - $692.00
    $692.00
    $729.00
    $729.00 - $729.00
    $729.00

    Add fingertip control to your 2001-2005 Duramax Allison 1000 transmission for easy Tap Shifting when passing, pulling, hill climbing or whenever yo...

    View full details
    $692.00 - $692.00
    $692.00
    $729.00
    $729.00 - $729.00
    $729.00
  • responsive-image responsive-image

    ARP Duramax 6.6L Lb7 Hex Valve Cover Bolt Kit - Polished Stainless Steel

    ARP
    $197.00 - $197.00
    $197.00
    $197.00 - $197.00
    $197.00

    ARP Model 400-7532ARP Duramax 6.6L Lb7 Hex Valve Cover Bolt Kit - Polished Stainless Steel

    $197.00 - $197.00
    $197.00
    $197.00 - $197.00
    $197.00
  • responsive-image responsive-image

    ARP Duramax 6.6L LB7 Hex Valve Cover Bolt Kit

    ARP
    $136.00 - $136.00
    $136.00
    $136.00 - $136.00
    $136.00

    ARP Model 100-7532ARP Duramax 6.6L LB7 Hex Valve Cover Bolt Kit

    $136.00 - $136.00
    $136.00
    $136.00 - $136.00
    $136.00
  • responsive-image responsive-image

    Exergy 01-04 Chevrolet Duramax 6.6L LB7 10mm Stroker CP3 Pump (LBZ Based w/FCA)

    Exergy
    $3,072.00 - $3,072.00
    $3,072.00
    $3,072.00 - $3,072.00
    $3,072.00

    Exergy Model E04 10106Exergy 01-04 Chevrolet Duramax 6.6L LB7 10mm Stroker CP3 Pump (LBZ Based w/FCA) Do you want the capability of more power with...

    View full details
    $3,072.00 - $3,072.00
    $3,072.00
    $3,072.00 - $3,072.00
    $3,072.00
  • responsive-image responsive-image Save 9% Save %

    Mishimoto 01-03 Chevrolet / GMC 6.6L Duramax (LB7) Transmission Cooler

    Mishimoto
    $785.00
    $785.00 - $785.00
    $785.00
    $713.00
    $713.00 - $713.00
    $713.00

    There's no greater enemy for a transmission than heat. Whether your 2001-2003 Chevy/GMC 6.6L Duramax is a dedicated tow vehicle, hardworking fleet ...

    View full details
    $785.00
    $785.00 - $785.00
    $785.00
    $713.00
    $713.00 - $713.00
    $713.00
    Save 9% Save %
  • responsive-image responsive-image Save 9% Save %

    Mishimoto Aluminum Intercooler 2001-2005 LB7 LLY Duramax 6.6L - BLACK

    Mishimoto
    $2,079.00
    $2,079.00 - $2,079.00
    $2,079.00
    $1,890.00
    $1,890.00 - $1,890.00
    $1,890.00

    Mishimoto Aluminum Intercooler 2001-2005 LB7 LLY Duramax 6.6L - BLACK Mishimoto has expanded their Duramax performance parts line to include a perf...

    View full details
    $2,079.00
    $2,079.00 - $2,079.00
    $2,079.00
    $1,890.00
    $1,890.00 - $1,890.00
    $1,890.00
    Save 9% Save %
  • responsive-image responsive-image Save 9% Save %

    Mishimoto Aluminum Intercooler 2001-2005 LB7 LLY Duramax 6.6L - SILVER

    Mishimoto
    $2,079.00
    $2,079.00 - $2,079.00
    $2,079.00
    $1,890.00
    $1,890.00 - $1,890.00
    $1,890.00

    Mishimoto Aluminum Intercooler 2001-2005 LB7 LLY Duramax 6.6L - SILVER Mishimoto has expanded their Duramax performance parts line to include a per...

    View full details
    $2,079.00
    $2,079.00 - $2,079.00
    $2,079.00
    $1,890.00
    $1,890.00 - $1,890.00
    $1,890.00
    Save 9% Save %
  • responsive-image responsive-image Save 9% Save %

    Mishimoto Aluminum Radiator 2001-2005 LB7 LLY Duramax 6.6L

    Mishimoto
    $1,570.00
    $1,570.00 - $1,570.00
    $1,570.00
    $1,427.00
    $1,427.00 - $1,427.00
    $1,427.00

    Mishimoto Aluminum Radiator 2001-2005 LB7 LLY Duramax 6.6L Mishimoto has released a performance aluminum radiator for the 2001-2005 Chevrolet/GMC 6...

    View full details
    $1,570.00
    $1,570.00 - $1,570.00
    $1,570.00
    $1,427.00
    $1,427.00 - $1,427.00
    $1,427.00
    Save 9% Save %

 

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