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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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  • Kryptonite Torsion Key Unloading Tool For 1988–2025 Universal Chevy/GMC Fit

    Kryptonite
    Original price $221.00 - Original price $221.00
    Original price
    $221.00
    $221.00 - $221.00
    Current price $221.00

    Fits:1988–2025 Chevy/GMC 1500HD / 2500HD / 3500 Trucks, Also fits: 1999–2006 GM 1500 Trucks & SUVs Universal Fit – Compatible with most GM tru...

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    Original price $221.00 - Original price $221.00
    Original price
    $221.00
    $221.00 - $221.00
    Current price $221.00
  • GM HX Series Main Bearings For 01-16 6.6L Duramax Industrial Injection

    Industrial Injection
    Original price $568.00
    Original price $568.00 - Original price $568.00
    Original price $568.00
    Current price $551.00
    $551.00 - $551.00
    Current price $551.00

    Industrial Injection Model: PDM-MS-2218HXC2001-2016 Duramax Hx Series Main Bearings (Std +.001) Coated. These H and HX Clevite bearings were develo...

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    Original price $568.00
    Original price $568.00 - Original price $568.00
    Original price $568.00
    Current price $551.00
    $551.00 - $551.00
    Current price $551.00
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  • GM H Series Rod Bearing Set For 01-16 Duramax Industrial Injection

    Industrial Injection
    Original price $796.00
    Original price $796.00 - Original price $796.00
    Original price $796.00
    Current price $772.00
    $772.00 - $772.00
    Current price $772.00

    Industrial Injection Model: PDM-CB-1805HC2001-2016 Duramax H Series Rod Bearings (Std .025) Coated Set. These H and HX Clevite bearings were devel...

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    Original price $796.00
    Original price $796.00 - Original price $796.00
    Original price $796.00
    Current price $772.00
    $772.00 - $772.00
    Current price $772.00
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  • Industrial Injection 01-16 Chevrolet Duramax Grade C Head Gasket (Right Side)

    Industrial Injection
    Original price $126.00 - Original price $126.00
    Original price
    $126.00
    $126.00 - $126.00
    Current price $126.00

    Industrial Injection Model: 54582Industrial Injection 01-16 Chevrolet Duramax Grade C Head Gasket (Right Side)

    Original price $126.00 - Original price $126.00
    Original price
    $126.00
    $126.00 - $126.00
    Current price $126.00
  • GM H Series Main Bearings For 01-16 6.6L Duramax Industrial Injection

    Industrial Injection
    Original price $567.00
    Original price $567.00 - Original price $567.00
    Original price $567.00
    Current price $550.00
    $550.00 - $550.00
    Current price $550.00

    Industrial Injection Model: PDM-MS-2218HC2001-2016 Duramax H Series Main Bearings (Std .025) Coated. These H and HX Clevite bearings were developed...

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    Original price $567.00
    Original price $567.00 - Original price $567.00
    Original price $567.00
    Current price $550.00
    $550.00 - $550.00
    Current price $550.00
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  • GM Rocker Arm Spacer Kit For 01-16 Duramax Industrial Injection

    Industrial Injection
    Original price $344.00
    Original price $344.00 - Original price $344.00
    Original price $344.00
    Current price $334.00
    $334.00 - $334.00
    Current price $334.00

    Industrial Injection Model: PDM-07184The Duramax Rocker Spacer Kit was designed to eliminate the factory springs in between the rockers to keep the...

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    Original price $344.00
    Original price $344.00 - Original price $344.00
    Original price $344.00
    Current price $334.00
    $334.00 - $334.00
    Current price $334.00
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  • XDP Remanufactured LLY Fuel Injector XD494 For 2004.5-2005 GM 6.6L Duramax LLY

    XDP
    Original price $376.00 - Original price $376.00
    Original price
    $376.00
    $376.00 - $376.00
    Current price $376.00

    XDP Model XD494Maintain the factory function of the fuel system on your Duramax with the XDP Remanufactured LLY Fuel Injector (Stock HP) XD494. Wit...

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    Original price $376.00 - Original price $376.00
    Original price
    $376.00
    $376.00 - $376.00
    Current price $376.00
  • XDP Connecting Rod Bolt Kit 2001-2010 GM 6.6L Duramax

    XDP
    Original price $305.00 - Original price $305.00
    Original price
    $305.00
    $305.00 - $305.00
    Current price $305.00

    XDP Model XD3019RBUpgrade the factory connecting rod bolts on your 2001-2010 GM 6.6L Duramax LB7/LLY/LBZ/LMM with the XDP Connecting Rod Bolt Kit X...

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    Original price $305.00 - Original price $305.00
    Original price
    $305.00
    $305.00 - $305.00
    Current price $305.00
  • OER Series New Fuel Injector (Stock HP) 1991.5-1993 Dodge Cummins XDP Xtreme Diesel Performance

    XDP
    Original price $140.00 - Original price $140.00
    Original price
    $140.00
    $140.00 - $140.00
    Current price $140.00

    XDP Model XD589The XDP OER Series New Fuel Injector (Stock HP) XD589 will help restore fuel system function in your 1991.5-1993 Dodge 5.9L Cummins ...

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    Original price $140.00 - Original price $140.00
    Original price
    $140.00
    $140.00 - $140.00
    Current price $140.00
  • XDP Remanufactured CP3 Fuel Pump 2004.5-2005 GM 6.6L Duramax LLY

    XDP
    Original price $965.00 - Original price $965.00
    Original price
    $965.00
    $965.00 - $965.00
    Current price $965.00

    XDP Model XD522 Purchase the Remanufactured CP3 Fuel Pump (Stock Replacement) XD522 and replace the underperforming pump on your 2004.5-2005 GM 6....

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    Original price $965.00 - Original price $965.00
    Original price
    $965.00
    $965.00 - $965.00
    Current price $965.00
  • XDP Low-Profile Plastic Creeper XD395

    XDP
    Original price $145.00 - Original price $145.00
    Original price
    $145.00
    $145.00 - $145.00
    Current price $145.00

    XDP Model XD395Low-Profile Plastic Creeper Warranty Info: 2 Year / Unlimited Mileage

    Original price $145.00 - Original price $145.00
    Original price
    $145.00
    $145.00 - $145.00
    Current price $145.00
  • XDP Billet Aluminum Oil Cap XD477 For 2001-2021 GM 6.6L Duramax

    XDP
    Original price $44.00 - Original price $44.00
    Original price
    $44.00
    $44.00 - $44.00
    Current price $44.00

    XDP Model XD477Customize the underhood of your 2001-2021 GM 6.6L Duramax when you add the Billet Aluminum Oil Cap XD477. Each cap features a CNC-ma...

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    Original price $44.00 - Original price $44.00
    Original price
    $44.00
    $44.00 - $44.00
    Current price $44.00
  • XDP Main Stud Kit 2001-2005 GM 6.6L Duramax LB7/LLY

    XDP
    Original price $341.00 - Original price $341.00
    Original price
    $341.00
    $341.00 - $341.00
    Current price $341.00

    XDP Model XD3007MSThe Main Stud Kit XD3007MS is essential for setting up your 2001-2005 GM 6.6L Duramax LB7/LLY for competition or street use. OEM ...

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    Original price $341.00 - Original price $341.00
    Original price
    $341.00
    $341.00 - $341.00
    Current price $341.00
  • 1.5 Inch Block and U-Bolt Kit 01-10 Chevy/GMC 2500HD Rough Country

    Rough Country
    Original price $116.00 - Original price $116.00
    Original price
    $116.00
    $116.00 - $116.00
    Current price $116.00

    Has the rear of your vehicle started to sag, or are you looking to add a bit of lift height? Whatever the case maybe we have you covered at Rough C...

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    Original price $116.00 - Original price $116.00
    Original price
    $116.00
    $116.00 - $116.00
    Current price $116.00
  • HD Forged Tie Rod End 01-10 Chevy/GMC 2500HD Rough Country

    Rough Country
    Original price $319.00 - Original price $319.00
    Original price
    $319.00
    $319.00 - $319.00
    Current price $319.00

    Don't settle for weak tie rods! You want your steering and suspension to be as strong as the truck you love. That's why you need Rough Country's HD...

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    Original price $319.00 - Original price $319.00
    Original price
    $319.00
    $319.00 - $319.00
    Current price $319.00
  • Silverado/Sierra 2500 HD V2 Front Shocks Pair 5.5-7 Inch For 01-10 Silverado/Sierra 2500 Rough Country

    Rough Country
    Original price $377.00 - Original price $377.00
    Original price
    $377.00
    $377.00 - $377.00
    Current price $377.00

    Whether you're tackling tough terrain or smooth city streets, Rough Country's Nitrogen-charged V2 Monotube Shock Absorber leads the way, delivering...

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    Original price $377.00 - Original price $377.00
    Original price
    $377.00
    $377.00 - $377.00
    Current price $377.00
  • 6.0 Inch GM Suspension Lift Kit 01-10 2500HD 4WD Rough Country

    Rough Country
    Original price $1,739.00 - Original price $2,203.00
    Original price
    $1,739.00
    $1,739.00 - $2,203.00
    Current price $1,739.00

    Take your Heavy Duty Truck to the next level with Rough Country's 6-inch Suspension Lift designed to run up to 35-inch tires. Gain increased grou...

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    Original price $1,739.00 - Original price $2,203.00
    Original price
    $1,739.00
    $1,739.00 - $2,203.00
    Current price $1,739.00
  • 6.0 Inch GM Suspension Lift Kit 01-10 2500HD / 3500HD Rough Country

    Rough Country
    Original price $1,449.00 - Original price $1,913.00
    Original price
    $1,449.00
    $1,449.00 - $1,913.00
    Current price $1,449.00

    Hit the ground running with Rough Country's Bolt-on 6-inch Suspension lift for 2WD GM 01-10 2500HD/3500HD models.This all inclusive kit features ev...

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    Original price $1,449.00 - Original price $1,913.00
    Original price
    $1,449.00
    $1,449.00 - $1,913.00
    Current price $1,449.00
  • Air Spring Kit 0-6 Inch Lift 01-10 Chevy/GMC 2500HD Rough Country

    Rough Country
    Original price $508.00 - Original price $1,391.00
    Original price
    $508.00
    $508.00 - $1,391.00
    Current price $508.00

    Ideal Leveling. Is your truck your workhorse? The main attraction to the pick-up line is the accessibility to haul and tow as desired. However, d...

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    Original price $508.00 - Original price $1,391.00
    Original price
    $508.00
    $508.00 - $1,391.00
    Current price $508.00
  • 6-inch Slimline Cree LED Light Bars Pair Rough Country

    Rough Country
    Original price $116.00 - Original price $116.00
    Original price
    $116.00
    $116.00 - $116.00
    Current price $116.00

    The sun never sets on a vehicle equipped with a pair of Rough Country's sleek 6-inch Slimline Cree LED Light Bars. With a powerful combined 4,880-...

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    Original price $116.00 - Original price $116.00
    Original price
    $116.00
    $116.00 - $116.00
    Current price $116.00
  • Multi-Function Winch Cleat Rough Country

    Rough Country
    Original price $73.00 - Original price $73.00
    Original price
    $73.00
    $73.00 - $73.00
    Current price $73.00

    Complete any winch set up by replacing your standard winch hook with Rough Country’s stylized Multi-Function Winch Cleat. This cutting edge desig...

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    Original price $73.00 - Original price $73.00
    Original price
    $73.00
    $73.00 - $73.00
    Current price $73.00
  • 10-Inch Slimline Cree LED Light Bars Pair Rough Country

    Rough Country
    Original price $160.00 - Original price $160.00
    Original price
    $160.00
    $160.00 - $160.00
    Current price $160.00

    The sun never sets on a vehicle equipped with a pair of Rough Country's sleek 10-inch Slimline Cree LED Light Bars. With a powerful combined 8,000...

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    Original price $160.00 - Original price $160.00
    Original price
    $160.00
    $160.00 - $160.00
    Current price $160.00
  • Air Spring Spacer Kit Rough Country

    Rough Country
    Original price $73.00 - Original price $102.00
    Original price
    $73.00
    $73.00 - $102.00
    Current price $73.00

    Functionality and Use. When equipping your vehicle with airbags depending on your lift height an airbag spacer is a must-have to ensure that you a...

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    Original price $73.00 - Original price $102.00
    Original price
    $73.00
    $73.00 - $102.00
    Current price $73.00
  • 20-inch Cree LED Light Bar Dual Row Chrome Series w/ Amber DRL Rough Country

    Rough Country
    Original price $334.00 - Original price $334.00
    Original price
    $334.00
    $334.00 - $334.00
    Current price $334.00

    Rough Country Model 70920DA The sun never sets on a vehicle equipped with Rough Country's sleek 20-inch LED Light Bar. With a powerful 18,000 Lumen...

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    Original price $334.00 - Original price $334.00
    Original price
    $334.00
    $334.00 - $334.00
    Current price $334.00

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