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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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    Mishimoto 01-21 Silverado Sierra Express Savana Duramax 6.6L Low Temp Thermostat Set

    Mishimoto
    $110.00
    $110.00 - $110.00
    $110.00
    $99.95
    $99.95 - $99.95
    $99.95

    Mishimoto 01-21 Silverado Sierra Express Savana Duramax 6.6L Low Temp Thermostat Set Fits 2001-2021 Chevrolet/GMC 6.6L Duramax (see fitment char...

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    $110.00
    $110.00 - $110.00
    $110.00
    $99.95
    $99.95 - $99.95
    $99.95
    Save 9% Save %
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    Gm Injector Screw In Cups For 2001-2004.5 6.6L LB7 Duramax Includes Install Tool and Hardware Industrial Injection

    Industrial Injection
    $899.95
    $899.95 - $899.95
    $899.95
    $872.95
    $872.95 - $872.95
    $872.95

    Industrial Injection Model: PDM-07021KThe factory injector cups are known for leaking, pitting and seizing themselves to the injectors in your LB7....

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    $899.95
    $899.95 - $899.95
    $899.95
    $872.95
    $872.95 - $872.95
    $872.95
    Save 3% Save %
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    GM FCA For 2004.5-2005 LLY 6.6L Duramax Industrial Injection

    Industrial Injection
    $190.15 - $190.15
    $190.15
    $190.15 - $190.15
    $190.15

    Industrial Injection Model: 0928400653-IISReplacement FCA for a LL7 CP3. Industrial Injection is the leading distributor, supplier and remanufactur...

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    $190.15 - $190.15
    $190.15
    $190.15 - $190.15
    $190.15
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    PureFlow AirDog 01-10 Chevrolet 6.6L Duramax FP-100-4G Fuel Pump

    AirDog
    $715.00 - $715.00
    $715.00
    $738.00
    $738.00 - $738.00
    $738.00

    Airdog Model A4SPBC185 This is the AirDog I FP-100-4G fuel system for the 2001-2010 Chevy/GMC Duramax 6.6L. This diesel lift pump mounts to the fra...

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    $715.00 - $715.00
    $715.00
    $738.00
    $738.00 - $738.00
    $738.00
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    FASS 01-10 GM 2500/3500 Duramax 165gph Titanium Series Fuel Air Separation System TS C10 165G

    FASS Fuel Systems
    $793.68
    $793.68 - $793.68
    $793.68
    $754.00
    $754.00 - $754.00
    $754.00

    Fass Fuel Systems Model: TSC10165GFASS Fuel Systems Diesel System 2001-2010 GM Duramax 6.6L Titanium Signature Series 165GPH (TSC10165G) Part No: T...

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    $793.68
    $793.68 - $793.68
    $793.68
    $754.00
    $754.00 - $754.00
    $754.00
    Save 5% Save %
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    Schaeffer's 0204SAT All-Trans Supreme ATF

    Schaeffer's
    $235.68 - $384.60
    $235.68
    $235.68 - $384.60
    $235.68

    0204SAT All-Trans Supreme® is formulated with a special blend of synthetic base oils, a highly shear, stable viscosity improver, and a multi-functi...

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    $235.68 - $384.60
    $235.68
    $235.68 - $384.60
    $235.68
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    Kryptonite Remote Reservoir Mount Kit For 2001–2010 Chevy/GMC HD Trucks & 2002–2009 Hummer H2

    Kryptonite
    $170.99 - $170.99
    $170.99
    $170.99 - $170.99
    $170.99

    Fits: 2001–2010 Chevy 2500HD/3500HD 2001–2010 GMC 2500HD/3500HD 2002–2009 Hummer H2 Important Fitment Details: Fits front shock towers. Sold as a p...

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    $170.99 - $170.99
    $170.99
    $170.99 - $170.99
    $170.99
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    Kryptonite Inner Tie Rod Tool For Chevy/GMC Trucks

    Kryptonite
    $28.49 - $28.49
    $28.49
    $28.49 - $28.49
    $28.49

    Fits; Any Kryptonite Death Grip Style Inner Tie Rod for GM Trucks Important Fitment Info: This tool is specifically designed to install or remove K...

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    $28.49 - $28.49
    $28.49
    $28.49 - $28.49
    $28.49
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    Kryptonite Tie Rod Rebuild Kit for Stock Center Link for 2001–2010 Chevy/GMC HD Trucks - 10KRYNEW78

    Kryptonite
    $218.49 - $218.49
    $218.49
    $218.49 - $218.49
    $218.49

    Kryptonite Part # - 10KRYNEW78 Fits: 2001–2010 GM Trucks with Kryptonite Tie Rods and a stock centerlink Important Fitment Info: This kit is desig...

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    $218.49 - $218.49
    $218.49
    $218.49 - $218.49
    $218.49

  • S400 4.62 S400 down pipe with clamp

    Smeding
    $199.00 - $199.00
    $199.00
    $199.00 - $199.00
    $199.00

    S400 4.62 S400 down pipe with clamp

    $199.00 - $199.00
    $199.00
    $199.00 - $199.00
    $199.00
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    KC Billet Unison Ring - 6.0 POWERSTROKE, LLY, LBZ

    Kc Turbo
    $159.00 - $159.00
    $159.00
    $159.00 - $159.00
    $159.00

    100% Drop In Ready Machined From High Quality Billet Stainless Steel Prevents Sticking Vanes Corrosion Resistant Lengthens Life of VGT Solenoid D...

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    $159.00 - $159.00
    $159.00
    $159.00 - $159.00
    $159.00
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    S&B Filters 75-5102 Cold Air Intake Kit (Cleanable Filter)

    S&B
    $379.00 - $379.00
    $379.00
    $379.00 - $379.00
    $379.00

    S&B Model 75-5102Outflow the factory air intake system in your 2004.5-2005 GM 6.6L Duramax LLY with the S&B Filters 75-5102 Cold Air Intake...

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    $379.00 - $379.00
    $379.00
    $379.00 - $379.00
    $379.00
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    XDP Duramax Cat Adapter With 1R-0750 Filter, Bleeder Screw & Spacer XD171

    XDP
    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95

    XDP Model XD171The XDP Duramax CAT Adapter with 1R-0750 Filter, Bleeder Screw & Spacer XD171 is an easy way to upgrade the fuel filter on your ...

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    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95
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    Fleece Performance 06-10 GM Duramax 6.6L LBZ/LMM Allison Transmission Cooler Lines

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $289.99
    $289.99 - $289.99
    $289.99

    Fleece Performance Model FPE-TL-LBZ-LMMReplace your leaking transmission lines with our heavy duty, high flow, flexible transmission lines. Our kit...

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    $0.00 - $0.00
    $0.00
    $289.99
    $289.99 - $289.99
    $289.99
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    Fleece Performance 06-10 GM 2500/3500 Duramax 6.6L Fuel Pressure Regulator Wiring Harness

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $69.99
    $69.99 - $69.99
    $69.99

    Fleece Performance Model FPE-HAR-DMAX-FPROur Fuel Pressure Regulator (FPR) harness for the 2001-2010 6.6L Duramax is a direct replacement for GM Pa...

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    $0.00 - $0.00
    $0.00
    $69.99
    $69.99 - $69.99
    $69.99
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    XDP Mass Air Flow (MAF) Sensor 2001-2007 GM 6.6L Duramax LB7/LLY/LBZ XD1024

    XDP
    $83.95 - $83.95
    $83.95
    $83.95 - $83.95
    $83.95

    XDP Model XD1024The XDP Mass Air Flow (MAF) Sensor XD1024 is an OE-style, direct-fit replacement the factory MAF sensor on your Chevy or GMC 6.6L D...

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    $83.95 - $83.95
    $83.95
    $83.95 - $83.95
    $83.95
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    Mishimoto Mishimoto Steel Spiked Lug Nuts M14 x 1.5 32pc Set Black

    Mishimoto
    $115.00
    $115.00 - $115.00
    $115.00
    $104.95
    $104.95 - $104.95
    $104.95

    Mishimoto Model MMLG-SP1415-32BKThe details matter when you're building your dream car. Every bolt is meticulously chosen for not only function, bu...

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    $115.00
    $115.00 - $115.00
    $115.00
    $104.95
    $104.95 - $104.95
    $104.95
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    Power Steering Pump New with Reservoir 2001-2010 Chevrolet Silverado/GMC Sierra 2500/3500 XDP Xtreme Diesel Performance

    XDP
    $207.95 - $207.95
    $207.95
    $207.95 - $207.95
    $207.95

    Replace that leaking or noisy power steering pump in your GM 6.6L Duramax LB7/LLY/LBZ/LMM with the XDP Power Steering Pump New with Reservoir XD733...

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    $207.95 - $207.95
    $207.95
    $207.95 - $207.95
    $207.95
  • XDP Harmonic Balancer Bolt XD628. XDP Harmonic Balancer Bolt XD628.

    XDP Harmonic Balancer Bolt XD628

    XDP
    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95

    XDP Model XD628

    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95
  • S&S Diesel Motorsport Duramax SuperSport CP3 (higher output >3500rpm) - New. S&S Diesel Motorsport Duramax SuperSport CP3 (higher output >3500rpm) - New.

    S&S Diesel Motorsport Duramax SuperSport CP3 (higher output >3500rpm) - New

    S&S
    $1,130.00 - $1,130.00
    $1,130.00
    $1,130.00 - $1,130.00
    $1,130.00

    S&S Model CP3-DMX-SSS&S Diesel Motorsport Duramax SuperSport CP3 (higher output >3500rpm) S&S Duramax CP3 pumps are built from brand...

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    $1,130.00 - $1,130.00
    $1,130.00
    $1,130.00 - $1,130.00
    $1,130.00
  • 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
    $2,610.00 - $3,070.00
    $2,610.00
    $2,610.00 - $3,070.00
    $2,610.00

    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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    $2,610.00 - $3,070.00
    $2,610.00
    $2,610.00 - $3,070.00
    $2,610.00
    Select Options
  • S&S Diesel Motorsport Low Pressure Injector Return Line Assembly-LH Side LLY/LBZ/LMM. S&S Diesel Motorsport Low Pressure Injector Return Line Assembly-LH Side LLY/LBZ/LMM.

    S&S Diesel Motorsport Low Pressure Injector Return Line Assembly-LH Side LLY/LBZ/LMM

    S&S
    $50.00 - $50.00
    $50.00
    $50.00 - $50.00
    $50.00

    S&S Model DMAX-INJ-RTN-LHS&S Diesel Motorsport Low Pressure Injector Return Line Assembly-LH Side LLY/LBZ/LMM

    $50.00 - $50.00
    $50.00
    $50.00 - $50.00
    $50.00
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    XDP XTRA Cool Water Pump (With Housing) XD666

    XDP
    $157.95 - $157.95
    $157.95
    $157.95 - $157.95
    $157.95

    XDP Model XD6662001-2005 GM 6.6L Duramax LB7/LLY | 2003-2005 GM Kodiak/Topkick C4500/C5500 6.6L DuramaxThe XDP X-TRA Cool Water Pump (With Housing)...

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    $157.95 - $157.95
    $157.95
    $157.95 - $157.95
    $157.95
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    DDP Common Rail High Pressure Diesel Injection System Cleaner

    DDP
    $0.00 - $0.00
    $0.00
    $47.50
    $47.50 - $47.50
    $47.50

    DDP Model DDPCRCLEANHeavy duty, one-time use injection system cleaner. Cleans the entire fuel system! This product removes contamination, resin and...

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    $0.00 - $0.00
    $0.00
    $47.50
    $47.50 - $47.50
    $47.50
    Select Options

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