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LLY Duramax Parts

One of the biggest differences between the LLY and its predecessor, the LB7, is that the LLY is fitted with emissions controlling technology. Now equipped with a faster spooling Turbocharger which created more torque sooner with less emissions. Powerhouse Diesel has a huge selection of LLY Duramax parts to help you boost its performance, extend its lifespan and ensure it remains in good working order for as long as possible.

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  • XDP Harmonic Balancer Bolt XD628. XDP Harmonic Balancer Bolt XD628.

    XDP Harmonic Balancer Bolt XD628

    XDP
    $36.00 - $36.00
    $36.00
    $36.00 - $36.00
    $36.00

    XDP Model XD628

    $36.00 - $36.00
    $36.00
    $36.00 - $36.00
    $36.00
  • 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
    $359.00
    $359.00 - $359.00
    $359.00

    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
    $359.00
    $359.00 - $359.00
    $359.00
  • 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
    $4,878.00 - $9,445.00
    $4,878.00 - $9,445.00
    $4,878.00 - $9,445.00
    $4,878.00

    (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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    $4,878.00 - $9,445.00
    $4,878.00 - $9,445.00
    $4,878.00 - $9,445.00
    $4,878.00
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    Wehrli 01-10 GM Lower Splash Shield Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $414.00
    $414.00 - $414.00
    $414.00

    Wehrli Model WCF100463 The WCFab Splash Shield Kit for 2001-2010 Chevrolet Silverado 2500/3500 HD and GMC Sierra/Denali 2500/3500 HD trucks replace...

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    $0.00 - $0.00
    $0.00
    $414.00
    $414.00 - $414.00
    $414.00
  • responsive-image responsive-image Save 3% Save %

    GM Race Camshaft For 01-16 Duramax Alternate Firing Billet Stage 1 With Key Industrial Injection

    Industrial Injection
    $2,588.00
    $2,588.00 - $2,588.00
    $2,588.00
    $2,510.00
    $2,510.00 - $2,510.00
    $2,510.00

    Industrial Injection Model: PDM-DMXAFS1Duramax Alternate Firing Billet Race Camshaft w/ Key Features: 1000+hp Capable Alternate Firing Order (rel...

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    $2,588.00
    $2,588.00 - $2,588.00
    $2,588.00
    $2,510.00
    $2,510.00 - $2,510.00
    $2,510.00
    Save 3% Save %
  • responsive-image responsive-image

    Acdelco Speed Sensor 19300584 For 2001–2007 Classic Chevy/GMC 2500HD/3500HD Trucks

    Kryptonite
    $82.00 - $82.00
    $82.00
    $82.00 - $82.00
    $82.00

    Fits; 2001-2007 Classic Body 2500HD 3500HD Truck DESRIPTION Replacement ABS Wheel Speed sensor for front wheel hub assembly on 2001-2007 model...

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    $82.00 - $82.00
    $82.00
    $82.00 - $82.00
    $82.00
  • responsive-image responsive-image

    Wehrli 99-23 GM Billet Coolant Heater Core Firewall Fitting

    Wehrli
    $0.00 - $0.00
    $0.00
    $59.00
    $59.00 - $59.00
    $59.00

    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...

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    $0.00 - $0.00
    $0.00
    $59.00
    $59.00 - $59.00
    $59.00
  • ATS Diesel Billet Flexplate 2001-2023 L5P Duramax 6.6L. ATS Diesel Billet Flexplate 2001-2023 L5P Duramax 6.6L.

    ATS Diesel Billet Flexplate 2001-2023 L5P Duramax 6.6L

    ATS Diesel
    $1,148.00 - $1,148.00
    $1,148.00
    $1,148.00 - $1,148.00
    $1,148.00

    ATS Diesel 01-23 L5P Duramax 6.6L Billet Flexplate SFI approved billet flexplates from ATS will hold up under the most extreme conditions. ATS bill...

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    $1,148.00 - $1,148.00
    $1,148.00
    $1,148.00 - $1,148.00
    $1,148.00
  • Mishimoto Wheel Spacers - 5x120 - 67.1 - 35 - M14 - Black. Mishimoto Wheel Spacers - 5x120 - 67.1 - 35 - M14 - Black. Save 9% Save %

    Mishimoto Wheel Spacers - 5x120 - 67.1 - 35 - M14 - Black

    Mishimoto
    $297.00
    $297.00 - $297.00
    $297.00
    $270.00
    $270.00 - $270.00
    $270.00

    Wheel spacers are a great way to create brake clearance, add track width, prevent tire rub, and provide ideal wheel fitment on your vehicle. Mishim...

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    $297.00
    $297.00 - $297.00
    $297.00
    $270.00
    $270.00 - $270.00
    $270.00
    Save 9% Save %
  • Mishimoto Wheel Spacers - 5x120 - 67.1 - 30 - M14 - Black. Mishimoto Wheel Spacers - 5x120 - 67.1 - 30 - M14 - Black. Save 9% Save %

    Mishimoto Wheel Spacers - 5x120 - 67.1 - 30 - M14 - Black

    Mishimoto
    $286.00
    $286.00 - $286.00
    $286.00
    $260.00
    $260.00 - $260.00
    $260.00

    Wheel spacers are a great way to create brake clearance, add track width, prevent tire rub, and provide ideal wheel fitment on your vehicle. Mishim...

    View full details
    $286.00
    $286.00 - $286.00
    $286.00
    $260.00
    $260.00 - $260.00
    $260.00
    Save 9% Save %
  • Mishimoto Wheel Spacers - 5x120 - 67.1 - 25 - M14 - Black. Mishimoto Wheel Spacers - 5x120 - 67.1 - 25 - M14 - Black. Save 9% Save %

    Mishimoto Wheel Spacers - 5x120 - 67.1 - 25 - M14 - Black

    Mishimoto
    $277.00
    $277.00 - $277.00
    $277.00
    $251.00
    $251.00 - $251.00
    $251.00

    Wheel spacers are a great way to create brake clearance, add track width, prevent tire rub, and provide ideal wheel fitment on your vehicle. Mishim...

    View full details
    $277.00
    $277.00 - $277.00
    $277.00
    $251.00
    $251.00 - $251.00
    $251.00
    Save 9% Save %
  • aFe MagnumFLOW Air Filters OER P5R A/F P5R GM Trucks 01-05 V8-6.6L (td). aFe MagnumFLOW Air Filters OER P5R A/F P5R GM Trucks 01-05 V8-6.6L (td).

    aFe MagnumFLOW Air Filters OER P5R A/F P5R GM Trucks 01-05 V8-6.6L (td)

    aFe
    $147.00 - $147.00
    $147.00
    $147.00 - $147.00
    $147.00

    Constructed with 100-percent polyurethane boxed frame, this high flow, oiled OE replacement performance filter will outflow the stock filter for im...

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    $147.00 - $147.00
    $147.00
    $147.00 - $147.00
    $147.00
  • responsive-image responsive-image

    Edge Products 85401-201 Evolution CTS3 (california Edition - Duramax)

    Edge
    $1,141.00 - $1,141.00
    $1,141.00
    $1,141.00 - $1,141.00
    $1,141.00

    Edge Model 85401-201The Edge Products 85401-201 Evolution CTS3 (California Edition - Duramax) is a great way to add power and efficiency to your 20...

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    $1,141.00 - $1,141.00
    $1,141.00
    $1,141.00 - $1,141.00
    $1,141.00
  • S&S Diesel Motorsport Duramax 10mm CP3 High Speed (1,325 mm3 /rev displacement)- NEW. S&S Diesel Motorsport Duramax 12mm CP3 High Speed WITH SP300.

    S&S Diesel Motorsport Duramax 14mm CP3 High Speed WITH SP3000 Mechanical Pump

    S&S
    $5,560.00 - $5,560.00
    $5,560.00
    $5,560.00 - $5,560.00
    $5,560.00

    S&S Model CP3-DMX-14-HS-SP The SP3000 is a single mechanical solution that replaces the small factory supply pump, and will flow up to 2,791 l/...

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    $5,560.00 - $5,560.00
    $5,560.00
    $5,560.00 - $5,560.00
    $5,560.00
  • S&S Diesel Motorsport Duramax 10mm CP3 (1,325 mm3 /rev displacement) New. S&S Diesel Motorsport Duramax 10mm CP3 High Speed (1,325 mm3 /rev displacement)- NEW.

    S&S Diesel Motorsport Duramax 14mm CP3 High Speed (1,850 mm3 /rev displacement) - New

    S&S
    $4,135.00 - $4,135.00
    $4,135.00
    $4,135.00 - $4,135.00
    $4,135.00

    S&S Model CP3-DMX-14-HSS&S Diesel Motorsport Duramax 14mm CP3 High Speed (1,850 mm3 /rev displacement) | New LBZ-based. Optimized for high...

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    $4,135.00 - $4,135.00
    $4,135.00
    $4,135.00 - $4,135.00
    $4,135.00
  • S&S Diesel Motorsport Duramax 10mm CP3 (1,325 mm3 /rev displacement) New. S&S Diesel Motorsport Duramax 14mm CP3 (1,850 mm3 /rev displacement) - New.

    S&S Diesel Motorsport Duramax 14mm CP3 (1,850 mm3 /rev displacement) - New

    S&S
    $3,992.00 - $3,992.00
    $3,992.00
    $3,992.00 - $3,992.00
    $3,992.00

    S&S Model CP3-DMX-14S&S Diesel Motorsport Duramax 14mm CP3 (1,850 mm3 /rev displacement) | New LBZ-based. 2001-2010 Duramax Trucks *01-05 L...

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    $3,992.00 - $3,992.00
    $3,992.00
    $3,992.00 - $3,992.00
    $3,992.00
  • S&S Diesel Motorsport Duramax 10mm CP3 High Speed (1,325 mm3 /rev displacement)- NEW. S&S Diesel Motorsport Duramax 12mm CP3 High Speed WITH SP300.

    S&S Diesel Motorsport Duramax 12mm CP3 High Speed WITH SP300

    S&S
    $5,132.00 - $5,132.00
    $5,132.00
    $5,132.00 - $5,132.00
    $5,132.00

    S&S Model CP3-DMX-12-HS-SP The SP3000 is a single mechanical solution that replaces the small factory supply pump, and will flow up to 2,791 l/...

    View full details
    $5,132.00 - $5,132.00
    $5,132.00
    $5,132.00 - $5,132.00
    $5,132.00
  • S&S Diesel Motorsport Duramax 10mm CP3 (1,325 mm3 /rev displacement) New. S&S Diesel Motorsport Duramax 10mm CP3 (1,325 mm3 /rev displacement) New.

    S&S Diesel Motorsport Duramax 10mm CP3 (1,325 mm3 /rev displacement) New

    S&S
    $2,852.00 - $2,852.00
    $2,852.00
    $2,852.00 - $2,852.00
    $2,852.00

    S&S Model CP3-DMX-10S&S Diesel Motorsport Duramax 10mm CP3 (1,325 mm3 /rev displacement) | New LBZ-based No calibration needed, direct dro...

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    $2,852.00 - $2,852.00
    $2,852.00
    $2,852.00 - $2,852.00
    $2,852.00
  • S&S Diesel Motorsport Duramax 10mm CP3 (1,325 mm3 /rev displacement) New. S&S Diesel Motorsport Duramax 10mm CP3 High Speed (1,325 mm3 /rev displacement)- NEW.

    S&S Diesel Motorsport Duramax 10mm CP3 High Speed (1,325 mm3 /rev displacement)- NEW

    S&S
    $3,137.00 - $3,137.00
    $3,137.00
    $3,137.00 - $3,137.00
    $3,137.00

    S&S Model CP3-DMX-10-HSS&S Diesel Motorsport Duramax 10mm CP3 High Speed (1,325 mm3 /rev displacement) | New LBZ-based Optimized for high ...

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    $3,137.00 - $3,137.00
    $3,137.00
    $3,137.00 - $3,137.00
    $3,137.00
  • S&S Diesel Motorsport LLY Duramax (2004.5-2005 )TorqueMaster Injectors Set - Reman or New. S&S Diesel Motorsport LLY Duramax (2004.5-2005 )TorqueMaster Injectors Set - Reman or New.

    S&S Diesel Motorsport LLY Duramax (2004.5-2005 )TorqueMaster Injectors Set - Reman or New

    S&S
    $3,721.00 - $4,377.00
    $3,721.00 - $4,377.00
    $3,721.00 - $4,377.00
    $3,721.00

    S&S Model LLY-10SAC-R-SET (Reman) or LLY-10SAC-SET (New)LLY TorqueMaster Injector -Set S&S Upgrades Proprietary nozzle honing process fo...

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    $3,721.00 - $4,377.00
    $3,721.00 - $4,377.00
    $3,721.00 - $4,377.00
    $3,721.00
  • S&S Diesel Motorsport LLY Duramax (2004.5-2005) Injectors -Single. S&S Diesel Motorsport LLY Duramax (2004.5-2005) Injectors -Single.

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

    S&S
    $610.00 - $1,181.00
    $610.00 - $1,181.00
    $610.00 - $1,181.00
    $610.00

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

    View full details
    $610.00 - $1,181.00
    $610.00 - $1,181.00
    $610.00 - $1,181.00
    $610.00
  • S&S Diesel Motorsport LLY Duramax (2004.5-2005 )TorqueMaster Injector -Reman or New. S&S Diesel Motorsport LLY Duramax (2004.5-2005 )TorqueMaster Injector -Reman or New.

    S&S Diesel Motorsport LLY Duramax (2004.5-2005 )TorqueMaster Injector -Reman or New

    S&S
    $466.00 - $552.00
    $466.00 - $552.00
    $466.00 - $552.00
    $466.00

    S&S Model LLY-10SAC-R (Reman) or LLY-10SAC (New) LLY TorqueMaster Injector -Sold Each S&S Upgrades Proprietary nozzle honing process for...

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    $466.00 - $552.00
    $466.00 - $552.00
    $466.00 - $552.00
    $466.00
  • S&S Diesel Motorsport CP3 Metering Unit / FCA - Cummins 6.7L. S&S Diesel Motorsport CP3 Metering Unit / FCA - Cummins 6.7L.

    S&S Diesel Motorsport CP3 Metering Unit / FCA - Dmax LLY

    S&S
    $249.00 - $249.00
    $249.00
    $249.00 - $249.00
    $249.00

    S&S Model MEUN-LLYS&S Diesel Motorsport CP3 Metering Unit / FCA - Dmax LLY

    $249.00 - $249.00
    $249.00
    $249.00 - $249.00
    $249.00
  • S&S Diesel Motorsport DMAX Injector Return Leak Fitting Clip - LLY/LBZ/LMM. S&S Diesel Motorsport DMAX Injector Return Leak Fitting Clip - LLY/LBZ/LMM.

    S&S Diesel Motorsport DMAX Injector Return Leak Fitting Clip - LLY/LBZ/LMM

    S&S
    $10.00 - $10.00
    $10.00
    $10.00 - $10.00
    $10.00

    S&S Model DMAX-INJ-RTN-CLIPS&S Diesel Motorsport DMAX Injector Return Leak Fitting Clip - LLY/LBZ/LMM *Generic Image

    $10.00 - $10.00
    $10.00
    $10.00 - $10.00
    $10.00

BUILT FOR PERFORMANCE

This second gen Duramax is now equipped with a faster spooling Turbocharger which created more torque sooner with less emissions. Powerhouse Diesel has a huge selection of LLY Duramax parts to help you boost its performance, extend its lifespan and ensure it remains in good working order for as long as possible.

Here at Powerhouse Diesel, our inventory of LLY duramax performance parts and accessories includes just about everything you could need. We have a huge range of options from many of the top manufacturers in the industry, including Fleece, Kryptonite, DDP and Rough Country. This is critical because when you’re trying to make improvements to how your engine performs, you need to have the highest-quality components. Without the best LLY upgrades, there’s a good chance you’ll continue to have issues with your engine.

Our selection of LLY duramax parts can help you no matter what you’re looking for from your truck. Whether you’re trying to boost efficiency, get more raw power or just need to perform routine maintenance, we have something to help you. Here you’ll find LLY accessories and parts including:

  • Suspension parts
  • Turbochargers
  • Exhausts
  • Injectors
  • Intakes and cooling system parts
  • Injection pumps and lift pumps
  • And more

LET US SHOW YOU THE WAY

Our expertise and knowledge make us the best place to look for parts to upgrade your LLY Duramax. When you shop with us, our experienced team can help you narrow down your search and find the components that are perfect for whatever result you want. We’ll answer your questions and show you all your options so you can get the most from your engine. If you’re ready to learn more about what we have in stock and what it can do for you, browse through our products or get in touch with us today.

Powerhouse Diesel