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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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  • 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
    $4,939.00 - $9,562.00
    $4,939.00
    $4,939.00 - $9,562.00
    $4,939.00

    (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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    $4,939.00 - $9,562.00
    $4,939.00
    $4,939.00 - $9,562.00
    $4,939.00
    Select Options
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    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
  • S&S Diesel Motorsport Duramax 10mm CP3 (1,325 mm3 /rev displacement) New. S&S Diesel Motorsport Duramax 12mm CP3 High Speed (1,590 mm3 /rev displacement) -New.

    S&S Diesel Motorsport Duramax 12mm CP3 High Speed (1,590 mm3 /rev displacement) -New

    S&S
    $3,753.00 - $3,753.00
    $3,753.00
    $3,753.00 - $3,753.00
    $3,753.00

    S&S Model CP3-DMX-12-HSS&S Diesel Motorsport Duramax 12mm CP3 High Speed (1,590 mm3 /rev displacement) | New LBZ-based. 2001-2010 Duramax T...

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    $3,753.00 - $3,753.00
    $3,753.00
    $3,753.00 - $3,753.00
    $3,753.00
  • S&S Diesel Motorsport Duramax 12mm CP3 (1,590 mm3 /rev displacement) -New. S&S Diesel Motorsport Duramax 12mm CP3 (1,590 mm3 /rev displacement) -New.

    S&S Diesel Motorsport Duramax 12mm CP3 (1,590 mm3 /rev displacement) -New

    S&S
    $3,609.00 - $3,609.00
    $3,609.00
    $3,609.00 - $3,609.00
    $3,609.00

    S&S Model CP3-DMX-12S&S Diesel Motorsport Duramax 12mm CP3 (1,590 mm3 /rev displacement) | New LBZ-based. 2001-2010 Duramax Trucks 2001-200...

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    $3,609.00 - $3,609.00
    $3,609.00
    $3,609.00 - $3,609.00
    $3,609.00
  • S&S Diesel Motorsport DBV4 Single Stage Relief Valve Innternal Return LLY/LBZ/LMM, 6.7 Style - 2700bar. S&S Diesel Motorsport DBV4 Single Stage Relief Valve Innternal Return LLY/LBZ/LMM, 6.7 Style - 2700bar.

    S&S Diesel Motorsport DBV4 Single Stage Relief Valve Internal Return, LLY/LBZ/LMM, 6.7 style - 2200bar

    S&S
    $460.00 - $460.00
    $460.00
    $460.00 - $460.00
    $460.00

    S&S Model PRV-I-2200-1SDBV4 Single Stage Relief Valve Internal Return, LLY/LBZ/LMM, 6.7 style - 2200bar Generic Image

    $460.00 - $460.00
    $460.00
    $460.00 - $460.00
    $460.00
  • S&S Diesel Motorsport DBV4 Single Stage Relief Valve Innternal Return LLY/LBZ/LMM, 6.7 Style - 2700bar. S&S Diesel Motorsport DBV4 Single Stage Relief Valve Innternal Return LLY/LBZ/LMM, 6.7 Style - 2700bar.

    S&S Diesel Motorsport DBV4 2 Stage Relief Valve Internal Return LLY/LBZ/LMM Style 2400 Bar

    S&S
    $413.00 - $413.00
    $413.00
    $413.00 - $413.00
    $413.00

    S&S Model PRV-I-2400-2SDBV4 2 stage relief valve, internal return, LLY/LBZ/LMM style - 2400bar *Generic Image

    $413.00 - $413.00
    $413.00
    $413.00 - $413.00
    $413.00
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    Yukon Unit Bearing & Hub Assembly for 99-14 GM 1/2 Ton Front

    Yukon Gear & Axle
    $329.00 - $329.00
    $329.00
    $329.00 - $329.00
    $329.00

    Enhanced Safety: Rest easy knowing that the YB U515036 hub assembly meets or exceeds OE standards, keeping you and your passengers safe on the road...

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    $329.00 - $329.00
    $329.00
    $329.00 - $329.00
    $329.00
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    Fleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LMM) - Medium Line

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $145.00
    $145.00 - $145.00
    $145.00

    Fleece Performance Model FPE-TL-LB7-LMM-MED-SERFleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LMM) - Medium Line ...

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    $0.00 - $0.00
    $0.00
    $145.00
    $145.00 - $145.00
    $145.00
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    6 Inch Lift Kit | Chevy/GMC Sierra/Silverado 2500 4WD (1999-2004)

    Rough Country
    $1,877.00 - $1,877.00
    $1,877.00
    $1,877.00 - $1,877.00
    $1,877.00

    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 ground...

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    $1,877.00 - $1,877.00
    $1,877.00
    $1,877.00 - $1,877.00
    $1,877.00
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    M14 x 1.5 Lug Nut Set of 32 | Chrome | Open End

    Rough Country
    $58.00 - $58.00
    $58.00
    $58.00 - $58.00
    $58.00

    Secure your new wheels with Rough Countrys Bulge Acorn Style Lug Nuts. These cold-forged lug nuts are plated with a beautiful chrome finish for a l...

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    $58.00 - $58.00
    $58.00
    $58.00 - $58.00
    $58.00
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    2" Rear Block Kit - GM Truck

    ReadyLift
    $246.00 - $246.00
    $246.00
    $246.00 - $246.00
    $246.00

    Readylift Model 66-3052 QUICK OVERVIEW Chevy/GMC 2" OEM Style Rear Block Kit for 1988-98 GM 1500 2000-2010 GM HD 2500/3500 8-lug Includes new longe...

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    $246.00 - $246.00
    $246.00
    $246.00 - $246.00
    $246.00
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    Wehrli LB7/LLY/LBZ/LMM Duramax Upper Coolant Pipe Plug

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

    Wehrli Model WCF205-280Wehrli LB7/LLY/LBZ/LMM Duramax Upper Coolant Pipe Plug

    $0.00 - $0.00
    $0.00
    $59.00
    $59.00 - $59.00
    $59.00
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    Wehrli LLY / LBZ / LMM Duramax Turbo Compressor Inlet Billet Steel Flange

    Wehrli
    $0.00 - $0.00
    $0.00
    $56.00
    $56.00 - $56.00
    $56.00

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

    $0.00 - $0.00
    $0.00
    $56.00
    $56.00 - $56.00
    $56.00
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    Exergy 04.5-05 Chevrolet Duramax 6.6L LLY New Stock Replacement Left Hand Fuel Rail

    Exergy
    $397.00 - $397.00
    $397.00
    $397.00 - $397.00
    $397.00

    Exergy 04.5-05 Chevy Duramax LLY New Stock Replacement LH Fuel Rail

    $397.00 - $397.00
    $397.00
    $397.00 - $397.00
    $397.00
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    Dodge Rail Plug For 13-18 6.7L Cummins Industrial Injection

    Industrial Injection
    $58.00
    $58.00 - $58.00
    $58.00
    $56.00
    $56.00 - $56.00
    $56.00

    Industrial Injection Model: 631601Made by Industrial Injection to replace your factory faulty pressure relief valve which causes a lack of fuel pre...

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    $58.00
    $58.00 - $58.00
    $58.00
    $56.00
    $56.00 - $56.00
    $56.00
    Save 3% Save %
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    Wehrli 01-19 Chevrolet LB7/LLY/LBZ/LMM/LML/L5P Duramax Brake Master Cylinder Cover

    Wehrli
    $0.00 - $0.00
    $0.00
    $210.00
    $210.00 - $210.00
    $210.00

    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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    $0.00 - $0.00
    $0.00
    $210.00
    $210.00 - $210.00
    $210.00
    Select Options
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    Wehrli 01-16 Chevrolet Duramax Exhaust Manifold Kit w/ Gaskets & Hardware

    Wehrli
    $0.00 - $0.00
    $0.00
    $2,023.00
    $2,023.00 - $2,023.00
    $2,023.00

    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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    $0.00 - $0.00
    $0.00
    $2,023.00
    $2,023.00 - $2,023.00
    $2,023.00
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    Wehrli 01-10 Chevrolet 6.6L Duramax Traction Bar Install Kit

    Wehrli
    $0.00 - $0.00
    $0.00
    $399.00
    $399.00 - $399.00
    $399.00

    Wehrli Model WCF100840 Built in house at WCFab our traction bar brackets bolt on to the bottom of the axle tube via the axle u-bolts and weld to th...

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    $0.00 - $0.00
    $0.00
    $399.00
    $399.00 - $399.00
    $399.00
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    Wehrli 01-05 Duramax LB7/LLY Thermostat Housing Kit

    Wehrli
    $757.00
    $757.00 - $757.00
    $757.00
    $685.00
    $685.00 - $685.00
    $685.00

    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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    $757.00
    $757.00 - $757.00
    $757.00
    $685.00
    $685.00 - $685.00
    $685.00
    Save 10% Save %
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    Fleece Performance Duramax Remote Turbo Oil Feed Line Kit for 01-16 6.6L Duramax Turbochargers

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $145.00
    $145.00 - $145.00
    $145.00

    Fleece Performance Model FPE-DTFL-0116Make turbo installations easier and ensure good oil supply to your turbocharger with our remote oil feed line...

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    $0.00 - $0.00
    $0.00
    $145.00
    $145.00 - $145.00
    $145.00
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    Fleece Performance 01-16 GM 2500/3500 Duramax Billet Oil Cap Cover - Black

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $58.00
    $58.00 - $58.00
    $58.00

    Fleece Performance Model FPE-DMAX-OC-BLKDress up your engine bay with our billet aluminum oil cap for the Chevy Duramax! Includes o-ring and cam-lo...

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    $0.00 - $0.00
    $0.00
    $58.00
    $58.00 - $58.00
    $58.00
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    BD Diesel Manifold Exhaust - 2001-2010 Duramax

    BD Diesel
    $276.00 - $276.00
    $276.00
    $413.00
    $413.00 - $413.00
    $413.00

    The BD Full Bore Exhaust Manifold for the Chevy Duramax engine replaces factory driver's side "pinched down" unit, restoring exhaust flow and balan...

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    $276.00 - $276.00
    $276.00
    $413.00
    $413.00 - $413.00
    $413.00
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    BD Diesel 2001-2004 Chevy Duramax LB7 6.6L Up-Pipe Only for Passenger Side

    BD Diesel
    $412.00 - $412.00
    $412.00
    $433.00
    $433.00 - $433.00
    $433.00

    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...

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    $412.00 - $412.00
    $412.00
    $433.00
    $433.00 - $433.00
    $433.00
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    SCT Performance Livewire TS+ Replacement OBD2 Cable

    SCT Performance
    $37.00 - $37.00
    $37.00
    $37.00 - $37.00
    $37.00

    SCT Performance LLC. is a leading provider of handheld automotive performance / fuel economy programmers and custom tuning software for Ford, Gener...

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    $37.00 - $37.00
    $37.00
    $37.00 - $37.00
    $37.00

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