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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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  • Exergy Cummins 6.7L/Duramax LLY/LBZ/LMM 2400 Bar (34800 PSI) Pressure Relief Valve *RACE*

    Exergy
    Original price $429.00 - Original price $429.00
    Original price
    $429.00
    $429.00 - $429.00
    Current price $429.00

    Exergy Model E07 00016Exergy Cummins 6.7L/Duramax LLY/LBZ/LMM 2400 Bar (34800 PSI) Pressure Relief Valve *RACE*

    Original price $429.00 - Original price $429.00
    Original price
    $429.00
    $429.00 - $429.00
    Current price $429.00
  • Exergy Cummins 6.7L/Duramax LLY/LBZ/LMM 2600 Bar (37700 PSI) Pressure Relief Valve

    Exergy
    Original price $458.00 - Original price $458.00
    Original price
    $458.00
    $458.00 - $458.00
    Current price $458.00

    Exergy Cummins 6.7L/Duramax LLY/LBZ/LMM 2600 Bar (37700 PSI) Pressure Relief Valve *RACE*

    Original price $458.00 - Original price $458.00
    Original price
    $458.00
    $458.00 - $458.00
    Current price $458.00
  • Exergy Dodge Cummins 6.7L/Chevrolet Duramax LLY/LBZ/LMM 2000 Bar (29000 PSI) Pressure Relief Valve

    Exergy
    Original price $343.00 - Original price $343.00
    Original price
    $343.00
    $343.00 - $343.00
    Current price $343.00

    Exergy Model E07 00012Exergy Dodge Cummins 6.7L/Chevrolet Duramax LLY/LBZ/LMM 2000 Bar (29000 PSI) Pressure Relief Valve

    Original price $343.00 - Original price $343.00
    Original price
    $343.00
    $343.00 - $343.00
    Current price $343.00
  • Kicker Bar Kit | 6 Inch Lift | Chevy/GMC 2500HD 4WD (01-10)

    Rough Country
    Original price $186.00 - Original price $186.00
    Original price
    $186.00
    $186.00 - $186.00
    Current price $186.00

    Kicker braces add rigidity to the front crossmember assembly and are highly recommended for aggressive off road use.

    Original price $186.00 - Original price $186.00
    Original price
    $186.00
    $186.00 - $186.00
    Current price $186.00
  • Carrier Bearing Drop Kit | Chevy/GMC 2500HD 2WD/4WD (01-10)

    Rough Country
    Original price $43.00 - Original price $43.00
    Original price
    $43.00
    $43.00 - $43.00
    Current price $43.00

    Carrier bearing drop kit required for 01-06 1500 HD Pickups with 2-piece drive shafts.

    Original price $43.00 - Original price $43.00
    Original price
    $43.00
    $43.00 - $43.00
    Current price $43.00
  • LED Light Mounts | Upper Windshield | 54" Curved | Chevy/GMC 1500 (99-06 & Classic)

    Rough Country
    Original price $72.00 - Original price $72.00
    Original price
    $72.00
    $72.00 - $72.00
    Current price $72.00

    Ride proudly into the night with Rough Country's 54-inch Curved LED Upper Windshield Light Bar Mounts for 99-06 GM Pickups & SUV's. Our durable...

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    Original price $72.00 - Original price $72.00
    Original price
    $72.00
    $72.00 - $72.00
    Current price $72.00
  • HD Tie Rod Sleeves | Chevy/GMC 1500/2500HD/Tahoe/Yukon 4WD

    Rough Country
    Original price $58.00 - Original price $58.00
    Original price
    $58.00
    $58.00 - $58.00
    Current price $58.00

    One area seriously lacking on most GM trucks is the steering link. With an outside diameter of only 1/2in, one wrong turn can easily bend the tie r...

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    Original price $58.00 - Original price $58.00
    Original price
    $58.00
    $58.00 - $58.00
    Current price $58.00
  • 2 Inch Leveling Kit | Chevy/GMC 2500HD (01-10)

    Rough Country
    Original price $115.00 - Original price $143.00
    Original price
    $115.00 - $143.00
    $115.00 - $143.00
    Current price $115.00

    Crank it up with Rough Country;s 2001-2010 Torsion Bar Leveling Kit. Featuring a set of durable, forged Torsion bar Keys, this kit affords you plen...

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    Original price $115.00 - Original price $143.00
    Original price
    $115.00 - $143.00
    $115.00 - $143.00
    Current price $115.00
  • 2 Inch Leveling Kit | Shock Ext | Chevy/GMC 2500HD (01-10)

    Rough Country
    Original price $143.00 - Original price $143.00
    Original price
    $143.00
    $143.00 - $143.00
    Current price $143.00

    Crank it up with Rough Country;s 2001-2010 Torsion Bar Leveling Kit. Featuring a set of durable, forged Torsion bar Keys and shock extension bracke...

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    Original price $143.00 - Original price $143.00
    Original price
    $143.00
    $143.00 - $143.00
    Current price $143.00
  • Bilstein B8 5160 Series Shock Absorber 11-23 Chevrolet Silverado 2500/3500 HD Rear For 0-2in Lift

    Bilstein
    Original price $413.00 - Original price $413.00
    Original price
    $413.00
    $413.00 - $413.00
    Current price $413.00

    Bilstein B8 5160 remote reservoir shock absorbers are designed as a direct fit solution for lifted trucks and SUV’s. The remote reservoir will of...

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    Original price $413.00 - Original price $413.00
    Original price
    $413.00
    $413.00 - $413.00
    Current price $413.00
  • Exergy Duramax CP3 Rear Outlet Fitting & Plug Kit

    Exergy
    Original price $92.00 - Original price $92.00
    Original price
    $92.00
    $92.00 - $92.00
    Current price $92.00

    Exergy Model 1-018-124 Exergy Duramax CP3 Rear Outlet Fitting and Plug Kit

    Original price $92.00 - Original price $92.00
    Original price
    $92.00
    $92.00 - $92.00
    Current price $92.00
  • Wehrli 2001-2007 Duramax LB7/LLY/LBZ Allison 4x4 Transfer Case Brace - WCFab Red

    Wehrli
    Original price $292.00
    Original price $292.00 - Original price $292.00
    Original price $292.00
    Current price $283.00
    $283.00 - $283.00
    Current price $283.00

    Wehrli Model WCF1001302001-2007 LB7/LLY/LBZ Duramax Allison Transfer Case Braces have been developed and tested for use on high horsepower Duramax ...

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    Original price $292.00
    Original price $292.00 - Original price $292.00
    Original price $292.00
    Current price $283.00
    $283.00 - $283.00
    Current price $283.00
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  • 1" Rear Block Kit - GM Truck

    ReadyLift
    Original price $229.00 - Original price $229.00
    Original price
    $229.00
    $229.00 - $229.00
    Current price $229.00

    Readylift Model 66-3051 QUICK OVERVIEW Chevy/GMC 1" OEM Style Rear Block Kit Single Rear Wheel Only (will not fit Dually) OEM style cast iron with...

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    Original price $229.00 - Original price $229.00
    Original price
    $229.00
    $229.00 - $229.00
    Current price $229.00
  • Wehrli 01-10 Duramax ECLB & CCLB 68in Traction Bar Kit

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $1,385.00
    $1,385.00 - $1,385.00
    Current price $1,385.00

    Wehrli Model WCF100852 ***This kit includes 68" long bars for Extended Cab Long Bed and Crew Cab Long Bed Models*** ***This kit is for 2001-2010 GM...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $1,385.00
    $1,385.00 - $1,385.00
    Current price $1,385.00
  • Wehrli LB7 / LLY / LBZ Duramax MAF Sensor Aluminum Weld Bung

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $49.00
    $49.00 - $49.00
    Current price $49.00

    Wehrli Model WCF205-26Wehrli LB7 / LLY / LBZ Duramax MAF Sensor Aluminum Weld Bung

    Original price $0.00 - Original price $0.00
    Original price $0.00
    $49.00
    $49.00 - $49.00
    Current price $49.00
  • Wehrli LLY / LBZ / LMM Duramax Turbo Compressor Inlet Billet Steel Flange

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $56.00
    $56.00 - $56.00
    Current price $56.00

    Wehrli Model WCF205-81Wehrli LLY / LBZ / LMM Duramax Turbo Compressor Inlet Billet Steel Flange

    Original price $0.00 - Original price $0.00
    Original price $0.00
    $56.00
    $56.00 - $56.00
    Current price $56.00
  • Kryptonite Traction Bar Rebuild Kit For 2001–2010 Chevy/GMC HP Trucks

    Kryptonite
    Original price $95.00 - Original price $95.00
    Original price
    $95.00
    $95.00 - $95.00
    Current price $95.00

    Fits; KRTB10 Part# KRTB10-R Death Grip Full Floating Traction Bar Rebuild Kit replaces all bushings and bump stops on your existing Traction bar k...

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    Original price $95.00 - Original price $95.00
    Original price
    $95.00
    $95.00 - $95.00
    Current price $95.00
  • BD Diesel 2004-2006 Chevy 6.6L Duramax LLY Premium Stock Injector

    BD Diesel
    Original price $607.00 - Original price $607.00
    Original price $607.00
    $639.00
    $639.00 - $639.00
    Current price $639.00

    Flow matched high performance exchange common rail (CR) injectors supporting 60hp up to 160hp, 33% to 73% over. OE quality nozzles are extrude hone...

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    Original price $607.00 - Original price $607.00
    Original price $607.00
    $639.00
    $639.00 - $639.00
    Current price $639.00
  • Cold Air Intake For 01-04 Chevrolet Silverado GMC Sierra V8-6.6L LB7 Duramax S&B

    S&B
    Original price $499.00 - Original price $499.00
    Original price
    $499.00
    $499.00 - $499.00
    Current price $499.00

    Maximum Performance Our cold air intake for the 2001-2004 Chevy / GMC Duramax LB7 6.6L was engineered to minimize air restriction and flows 44.63 p...

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    Original price $499.00 - Original price $499.00
    Original price
    $499.00
    $499.00 - $499.00
    Current price $499.00
  • Cold Air Intake For 04-05 Chevrolet Silverado GMC Sierra V8-6.6L LLY Duramax S&B

    S&B
    Original price $499.00 - Original price $499.00
    Original price
    $499.00
    $499.00 - $499.00
    Current price $499.00

    Maximum Performance Our cold air intake for the 2004-2005 Chevy / GMC Duramax LLY 6.6L was engineered to minimize air restriction and flows 44.63 p...

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    Original price $499.00 - Original price $499.00
    Original price
    $499.00
    $499.00 - $499.00
    Current price $499.00
  • XDP Billet Tow & Race Series Flex Plate 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML Allison A1000

    XDP
    Original price $389.00 - Original price $389.00
    Original price
    $389.00
    $389.00 - $389.00
    Current price $389.00

    XDP Model XD651Upgrade your truck with a XDP Billet Tow & Race Series Flex Plate XD651. If your truck is used for racing, sled pulling, or hot ...

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    Original price $389.00 - Original price $389.00
    Original price
    $389.00
    $389.00 - $389.00
    Current price $389.00
  • WT Rubber Mats - Rear - Tan

    WeatherTech
    Original price $155.00 - Original price $155.00
    Original price
    $155.00
    $155.00 - $155.00
    Current price $155.00

    The WeatherTech All-Weather Floor Mats have deeply sculpted channels designed to trap water, road salt, mud and sand. They wont curl, crack or har...

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    Original price $155.00 - Original price $155.00
    Original price
    $155.00
    $155.00 - $155.00
    Current price $155.00
  • WT Rubber Mats - Rear - Grey

    WeatherTech
    Original price $155.00 - Original price $155.00
    Original price
    $155.00
    $155.00 - $155.00
    Current price $155.00

    The WeatherTech All-Weather Floor Mats have deeply sculpted channels designed to trap water, road salt, mud and sand. They wont curl, crack or har...

    View full details
    Original price $155.00 - Original price $155.00
    Original price
    $155.00
    $155.00 - $155.00
    Current price $155.00
  • WT Rubber Mats - Rear - Blk

    WeatherTech
    Original price $155.00 - Original price $155.00
    Original price
    $155.00
    $155.00 - $155.00
    Current price $155.00

    The WeatherTech All-Weather Floor Mats have deeply sculpted channels designed to trap water, road salt, mud and sand. They wont curl, crack or har...

    View full details
    Original price $155.00 - Original price $155.00
    Original price
    $155.00
    $155.00 - $155.00
    Current price $155.00

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