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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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  • Wehrli 04.5-16 Chevrolet 6.6L LLY/LBZ/LMM/LML Duramax VGT Exhaust Housing Heat Blanket

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $223.00
    $223.00 - $223.00
    Current price $223.00

    Wehrli Model WCF100733Wehrli 04.5-16 Chevrolet 6.6L LLY/LBZ/LMM/LML Duramax VGT Exhaust Housing Heat Blanket - VGT turbo heat blanket for 2004.5-20...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $223.00
    $223.00 - $223.00
    Current price $223.00
  • Wehrli 04.5-10 Duramax LLY/LBZ/LMM Billet Upper Valve Cover Set

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $522.00
    $522.00 - $522.00
    Current price $522.00

    Wehrli Model WCF100415 WCFab Billet Aluminum Upper Valve Cover sets fit LLY, LBZ, and LMM Duramax and are a great way to clean up your engine's app...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $522.00
    $522.00 - $522.00
    Current price $522.00
  • Wehrli 01-19 Chevrolet LB7/LLY/LBZ/LMM/LML/L5P Duramax Brake Master Cylinder Cover

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $209.00
    $209.00 - $209.00
    Current price $209.00

    Wehrli Model WCF100205Clean up the engine bay of your 2001-2019 Chevy Silverado or GMC Sierra 2500/3500 Duramax truck with this custom powder coate...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $209.00
    $209.00 - $209.00
    Current price $209.00
  • Wehrli 01-16 Chevrolet Duramax Exhaust Manifold Kit w/ Gaskets & Hardware

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $2,011.00
    $2,011.00 - $2,011.00
    Current price $2,011.00

    Wehrli Model WCF100363 Wehrli 01-16 Chevrolet Duramax Exhaust Manifold Kit w/ Gaskets & Hardware Fully TIG Welded, CNC machined billet steel ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $2,011.00
    $2,011.00 - $2,011.00
    Current price $2,011.00
  • Wehrli 01-10 Chevrolet 6.6L Duramax Valley CP3 Block Off Plate

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $105.00
    $105.00 - $105.00
    Current price $105.00

    Wehrli Model WCF100024Billet Block Off plate for valley CP3 pump. Black anodized finish with engraved logo.

    Original price $0.00 - Original price $0.00
    Original price $0.00
    $105.00
    $105.00 - $105.00
    Current price $105.00
  • Wehrli 01-10 Chevrolet 6.6L Duramax Traction Bar Install Kit

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $1,390.00
    $1,390.00 - $1,390.00
    Current price $1,390.00

    Wehrli Model WCF100850 ***This kit includes 60" long bars for Regular Cab Long Bed, Extended Cab Short Bed and Crew Cab Short Bed Models*** ***This...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $1,390.00
    $1,390.00 - $1,390.00
    Current price $1,390.00
  • Wehrli 01-10 Chevrolet 6.6L Duramax FASS Fuel System Relocation Bracket (Crew Cab Only)

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $142.00
    $142.00 - $142.00
    Current price $142.00

    Wehrli Model WCF100265Wehrli 01-10 Chevrolet 6.6L Duramax FASS Fuel System Relocation Bracket (Crew Cab Only) -Mount Bracket-Grade 8 Hardware-Zinc ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $142.00
    $142.00 - $142.00
    Current price $142.00
  • Wehrli 01-07 Chevrolet 6.6L LB7/LLY/LBZ Duramax OEM Placement Coolant Tank Kit

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $681.00
    $681.00 - $681.00
    Current price $681.00

    Wehrli Model WCF100645 2001-2007 Duramax Fabricated Aluminum Coolant Tank Kit, mounts in OEM coolant tank location. Dress up your engine bay by re...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $681.00
    $681.00 - $681.00
    Current price $681.00
  • Wehrli 01-06 Chevrolet 6.6L LB7/LLY/LBZ Duramax Twin Turbo Style Coolant Tank Kit

    Wehrli
    Original price $596.00
    Original price $596.00 - Original price $596.00
    Original price $596.00
    Current price $578.00
    $578.00 - $578.00
    Current price $578.00

    Wehrli Model WCF100642LB7, LLY, LBZ Duramax Fabricated Aluminum Coolant Tank Kit for Twin Turbo Applications mounts on passenger side fender. Does ...

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    Original price $596.00
    Original price $596.00 - Original price $596.00
    Original price $596.00
    Current price $578.00
    $578.00 - $578.00
    Current price $578.00
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  • Wehrli 01-05 Duramax LB7/LLY Thermostat Housing Kit

    Wehrli
    Original price $752.00
    Original price $752.00 - Original price $752.00
    Original price $752.00
    Current price $730.00
    $730.00 - $730.00
    Current price $730.00

    Wehrli Model WCF100405 The Top Outlet Billet Thermostat Housing and Upper Coolant Pipe Kit for 2001-2005 LB7/LLY Duramax replaces the OEM upper rad...

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    Original price $752.00
    Original price $752.00 - Original price $752.00
    Original price $752.00
    Current price $730.00
    $730.00 - $730.00
    Current price $730.00
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  • Wehrli 2004.5-05 Chevrolet LLY 6.6L Duramax Passenger Side 3in Intercooler Pipe

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $425.00
    $425.00 - $425.00
    Current price $425.00

    Wehrli Model WCF100355 The 3" High Flow Passenger Side Intercooler Pipe for 2004.5-2005 LLY Duramax replaces the 2.5" factory aluminum pipe with a ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $425.00
    $425.00 - $425.00
    Current price $425.00
  • Wehrli 04.5-05 LLY Duramax 4in Intake Kit with Air Box Stage 2

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $1,148.00
    $1,148.00 - $1,148.00
    Current price $1,148.00

    Wehrli Model WCF100301 WCFab 2004.5-2005 GM LLY 6.6L Duramax Stage 2 Intake Kit with Air Box. This high flow, fabricated aluminum intake pipe and a...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $1,148.00
    $1,148.00 - $1,148.00
    Current price $1,148.00
  • Wehrli 2004.5-2005 LLY Duramax 4in Intake Kit with Air Box

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $759.00
    $759.00 - $759.00
    Current price $759.00

    Wehrli Model WCF100191 WCFab 4" Intake Kit with Air Box for 2004.5-2005 LLY 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $759.00
    $759.00 - $759.00
    Current price $759.00

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