Skip to content
Free Shipping on most orders over $150.00    Sale on Select DDP Products Shop Now                    
Free Shipping on most orders over $150.00    Sale on Select DDP Products Shop Now                    

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.

Filters

$
$
  • responsive-image responsive-image

    Body Mount Kit For 2001-2005 Chevy / GMC 1500, 2500, 3500 Extended / Crew Cab

    S&B
    $499.00 - $499.00
    $499.00
    $499.00 - $499.00
    $499.00

    S&B Model 81-2001These bushings offer great vibration isolation and will not crack or breakdown like the OEM foam or rubber bushings. Also come...

    View full details
    $499.00 - $499.00
    $499.00
    $499.00 - $499.00
    $499.00
  • responsive-image responsive-image

    Kryptonite Alignment Cam Pins 8-pc Kit For Chevy/GMC Trucks & SUVs

    Kryptonite
    $18.99 - $18.99
    $18.99
    $18.99 - $18.99
    $18.99

    Part# KR86325 Fits; 2001–2025 Chevrolet & GMC 1500HD / 2500 / 2500HD / 3500 / 3500HD (2WD & 4WD), 2001–2013 Chevy & GMC 2500 2WD/4WD SU...

    View full details
    $18.99 - $18.99
    $18.99
    $18.99 - $18.99
    $18.99
  • responsive-image responsive-image

    Kryptonite Ss Series Center Link Upgrade Kit For 2001–2010 Chevy/GMC 1500HD/2500HD/3500HD & 2002–2009 Hummer H2

    Kryptonite
    $569.99 - $569.99
    $569.99
    $569.99 - $569.99
    $569.99

    Fits: 2001–2010 Chevrolet / GMC 2500HD & 3500HD Important Fitment Info: This SS Series Centerlink upgrade is designed for trucks currently runn...

    View full details
    $569.99 - $569.99
    $569.99
    $569.99 - $569.99
    $569.99
  • responsive-image responsive-image

    Kryptonite Solid Steel Tie Rod Sleeves Zinc Plated For 2001–2010 Chevy/GMC HD Trucks

    Kryptonite
    $33.24 - $33.24
    $33.24
    $33.24 - $33.24
    $33.24

    Fits; 2001–2010 Chevrolet & GMC 1500HD / 2500 / 2500HD / 3500 / 3500HD, 2001–2013 Chevrolet Suburban 2500 / GMC Yukon XL 2500, 2003–2009 Hummer...

    View full details
    $33.24 - $33.24
    $33.24
    $33.24 - $33.24
    $33.24
  • responsive-image responsive-image

    Kryptonite Upper And Lower Ball Joint Package Deal For Aftermarket Control Arms For 2001–2010 Chevy/GMC HD Trucks & Hummer H2

    Kryptonite
    $189.99 - $189.99
    $189.99
    $189.99 - $189.99
    $189.99

    Fits: 2001–2010 Chevy/GMC 1500HD, 2500HD, 3500HD, 2002–2009 Hummer H2 (8 Lug Trucks Only) Important Fitment Info: This package is designed for truc...

    View full details
    $189.99 - $189.99
    $189.99
    $189.99 - $189.99
    $189.99
  • responsive-image responsive-image

    Kryptonite Idler Support Frame Gusset For 2001–2010 Chevy/GMC 1500HD/2500HD/3500 Trucks

    Kryptonite
    $85.49 - $85.49
    $85.49
    $85.49 - $85.49
    $85.49

    Fits; 2001–2010 Chevy/GMC 2500HD / 3500HD Part# KRGUSSET10 Features: 1/4" Plate Steel Made in the USA DescriptionEngineered exclusively for the e...

    View full details
    $85.49 - $85.49
    $85.49
    $85.49 - $85.49
    $85.49
  • responsive-image responsive-image

    KC Balanced Assembly DIY Turbo kit - 6.6 DURAMAX LBZ/LLY

    Kc Turbo
    $450.00 - $450.00
    $450.00
    $450.00 - $450.00
    $450.00

    KC Balanced Assembly Features & Details: Drop In ready Balanced and ready to install Upgraded 360 thrust bearing Increases ai...

    View full details
    $450.00 - $450.00
    $450.00
    $450.00 - $450.00
    $450.00
  • responsive-image responsive-image

    XDP Custom Fender Cover XD372

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

    XDP Model XD372 The XDP Custom Fender Cover XD372 offers the ultimate in paint protection when wrenching on your truck. Manufactured from a high-q...

    View full details
    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95
  • responsive-image responsive-image

    XDP Billet Coolant Block-Off Plate XD344

    XDP
    $64.95 - $64.95
    $64.95
    $64.95 - $64.95
    $64.95

    XDP Model XD344Put the XDP Billet Coolant Block-Off Plate XD344 in your 2001-2017 GM 6.6L Duramax to permanently eliminate coolant leaks from the r...

    View full details
    $64.95 - $64.95
    $64.95
    $64.95 - $64.95
    $64.95
  • responsive-image responsive-image

    Smeding Diesel S362 SXE Turbocharger

    Smeding
    $730.00 - $1,140.00
    $730.00
    $730.00 - $1,140.00
    $730.00

    s362 sxe turbocharger

    $730.00 - $1,140.00
    $730.00
    $730.00 - $1,140.00
    $730.00

  • T4 GASKET

    Smeding
    $16.00 - $16.00
    $16.00
    $16.00 - $16.00
    $16.00

    $16.00 - $16.00
    $16.00
    $16.00 - $16.00
    $16.00
  • responsive-image responsive-image

    Smeding Diesel S475 T4 Turbocharger

    Smeding
    $1,150.00 - $1,780.00
    $1,150.00
    $1,150.00 - $1,780.00
    $1,150.00

    S475 t4 Turbocharger

    $1,150.00 - $1,780.00
    $1,150.00
    $1,150.00 - $1,780.00
    $1,150.00
  • responsive-image responsive-image

    Smeding Diesel Billet S472 T4 Turbocharger

    Smeding
    $1,395.00 - $1,780.00
    $1,395.00
    $1,395.00 - $1,780.00
    $1,395.00

    s472 turbocharger smeding diesel

    $1,395.00 - $1,780.00
    $1,395.00
    $1,395.00 - $1,780.00
    $1,395.00
  • responsive-image responsive-image

    Smeding Diesel S366 SXE Turbocharger

    Smeding
    $730.00 - $1,265.00
    $730.00
    $730.00 - $1,265.00
    $730.00

    Smeding Diesel S366 SXE Turbocharger

    $730.00 - $1,265.00
    $730.00
    $730.00 - $1,265.00
    $730.00
  • responsive-image responsive-image

    KC Billet Compressor Wheel - 6.6 DURAMAX (LLY)

    Kc Turbo
    $190.00 - $190.00
    $190.00
    $190.00 - $190.00
    $190.00

    Faster Spool Lower EGTS Better top end performance Stronger Material DIY Products Are NOT Covered Under Warranty Description: Our drop in GT...

    View full details
    $190.00 - $190.00
    $190.00
    $190.00 - $190.00
    $190.00
  • responsive-image responsive-image

    XDP Direct Replacement High Output 220 Amp Alternator XD224

    XDP
    $299.95 - $299.95
    $299.95
    $299.95 - $299.95
    $299.95

    XDP Model XD224Don't just replace the failing alternator in your 2001-2007 GM 6.6L Duramax, upgrade it with the XDP Direct Replacement High Output ...

    View full details
    $299.95 - $299.95
    $299.95
    $299.95 - $299.95
    $299.95
  • responsive-image responsive-image

    XDP Duramax Wif Sensor Delete Plug XD137

    XDP
    $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95

    XDP Model XD137The XDP WIF Sensor delete plug XD137 is a quick and simple solution to ending all the issues caused by the factory Water In Fuel (WI...

    View full details
    $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95
  • Photo - Primary Photo - Primary Save 3% Save %

    South Bend Clutch 01-09/2005 Chevy 6.6L Duramax LLY-LB7 Street Dual Disc Clutch Kit

    South Bend Clutch
    $1,435.72
    $1,435.72 - $1,435.72
    $1,435.72
    $1,392.00
    $1,392.00 - $1,392.00
    $1,392.00

    South Bend Clutch Model SDDMAX-DFYSouth Bend Clutch 01-09/2005 Chevy 6.6L Duramax LLY-LB7 Street Dual Disc Clutch KitThis Part Fits: Year Make Mod...

    View full details
    $1,435.72
    $1,435.72 - $1,435.72
    $1,435.72
    $1,392.00
    $1,392.00 - $1,392.00
    $1,392.00
    Save 3% Save %
  • Logo Image Logo Image

    BD Diesel 01-16 Chevrolet/GMC 2500HD/3500HD 6.6L Duramax Passenger Side Exhaust Manifold

    BD Diesel
    $285.95 - $285.95
    $285.95
    $285.95 - $285.95
    $285.95

    BD Diesel Model 1041461Experience performance and durability with the enhanced Duramax exhaust manifolds, specifically designed for the 2001-2016 6...

    View full details
    $285.95 - $285.95
    $285.95
    $285.95 - $285.95
    $285.95
  • responsive-image responsive-image

    Fleece Performance 01-04 LB7 Injection Lines (Complete Set of 8)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $379.05
    $379.05 - $379.05
    $379.05

    Fleece Performance Model FPE-346112001-2004 LB7 Injection Lines complete set of 8- Over time LB7 Injection lines corrode and break, they are a lead...

    View full details
    $0.00 - $0.00
    $0.00
    $379.05
    $379.05 - $379.05
    $379.05
  • responsive-image responsive-image

    Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Driver Side)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $1,199.00
    $1,199.00 - $1,199.00
    $1,199.00

    Fleece Performance Model FPE-61-10001-D-CLFreedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and m...

    View full details
    $0.00 - $0.00
    $0.00
    $1,199.00
    $1,199.00 - $1,199.00
    $1,199.00
  • responsive-image responsive-image

    Fleece Performance 01-04 GM Duramax LB7 Freedom Cylinder Head w/Cupless Injector Bore (Pssgr Side)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $1,199.00
    $1,199.00 - $1,199.00
    $1,199.00

    Fleece Performance Model FPE-61-10001-P-CLFreedom Series cylinder heads for the LB7 6.6L Duramax now with a cupless injector bore - save time and m...

    View full details
    $0.00 - $0.00
    $0.00
    $1,199.00
    $1,199.00 - $1,199.00
    $1,199.00
  • responsive-image responsive-image

    Fleece 01-04 GM Silverado/Sierra 2500 6.6L-V8 Duramax Truck PowerFlo In-tank Lift Pump

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $649.00
    $649.00 - $649.00
    $649.00

    Fleece Performance Model FPE-PF-GM-0104Fleece Performance Model FPE-PF-GM-0104Fleece 01-04 GM Silverado/Sierra 2500 6.6L-V8 Duramax Truck PowerFlo ...

    View full details
    $0.00 - $0.00
    $0.00
    $649.00
    $649.00 - $649.00
    $649.00
  • responsive-image responsive-image

    Fleece 01-04 GM 2500/3500 Duramax LB7 Fuel Injection Line (1 & 8)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $68.99
    $68.99 - $68.99
    $68.99

    Fleece Performance Model FPE-FL-LB7-18Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing th...

    View full details
    $0.00 - $0.00
    $0.00
    $68.99
    $68.99 - $68.99
    $68.99

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