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LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

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  • AMP Research 1999-2006 Chevy/GMC Silverado/Sierra Extended/Crew PowerStep - Black

    AMP Research
    Original price $2,343.00 - Original price $2,343.00
    Original price
    $2,343.00
    $2,343.00 - $2,343.00
    Current price $2,343.00

    Getting into your truck shouldn't feel like climbing Mount Everest. That's why AMP Research invented the patented PowerStep , the automatic, electr...

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    Original price $2,343.00 - Original price $2,343.00
    Original price
    $2,343.00
    $2,343.00 - $2,343.00
    Current price $2,343.00
  • Pusher SuperMax Y-Bridge for 2004.5-2005 Duramax LLY Trucks

    Pusher Intakes
    Original price $733.00 - Original price $733.00
    Original price
    $733.00
    $733.00 - $733.00
    Current price $733.00

    Pusher Intakes Model PGD0405YB This product is not emissions compliant. Off-road use only. The Pusher SuperMax Y-Bridge is available by itself to a...

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    Original price $733.00 - Original price $733.00
    Original price
    $733.00
    $733.00 - $733.00
    Current price $733.00
  • Fleece Performance 01-17 GM Duramax Billet Coolant Block Off Plate

    Fleece Performance
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $81.00
    $81.00 - $81.00
    Current price $81.00

    Fleece Performance Billet Coolant Block Off Plate Fits 2001-2017 GM 6.6L Duramax A direct replacement for the factory coolant crossover on the Dura...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $81.00
    $81.00 - $81.00
    Current price $81.00
  • Kryptonite Lower Ball Joint For Stock Lower Control Arm For 2001–2010 Chevy/GMC HD Trucks

    Kryptonite
    Original price $84.00 - Original price $84.00
    Original price
    $84.00
    $84.00 - $84.00
    Current price $84.00

    Fits: 2001–2010 Chevy/GMC 2500HD, 3500HD2002–2009 Hummer H2 (8 Lug Trucks Only) Important Fitment Info: This replacement lower ball joint fits eith...

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    Original price $84.00 - Original price $84.00
    Original price
    $84.00
    $84.00 - $84.00
    Current price $84.00
    Sold out
  • Smeding Diesel S300 Direct Bolt In Turbo 04.5-10 Duramax

    Smeding
    Original price $3,215.00 - Original price $4,013.00
    Original price
    $3,215.00
    $3,215.00 - $4,013.00
    Current price $3,215.00

    Smeding Diesel 04.5-10 Duramax S300 Direct Bolt In Turbocharger This turbo utilizes our S300 frame NON VGT Turbochargers and is setup to bolt in w...

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    Original price $3,215.00 - Original price $4,013.00
    Original price
    $3,215.00
    $3,215.00 - $4,013.00
    Current price $3,215.00
  • FASS 01-10 GM 2500/3500 Duramax 100gph Titanium Series Fuel Air Separation System TS C10 100G

    FASS Fuel Systems
    Original price $1,101.00
    Original price $1,101.00 - Original price $1,101.00
    Original price $1,101.00
    Current price $1,046.00
    $1,046.00 - $1,046.00
    Current price $1,046.00

    Fass Fuel Systems Model: TSC10100GFASS Fuel Systems Diesel System 2001-2010 GM Duramax 6.6L Titanium Signature Series 100GPH (TSC10100G) Part No: T...

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    Original price $1,101.00
    Original price $1,101.00 - Original price $1,101.00
    Original price $1,101.00
    Current price $1,046.00
    $1,046.00 - $1,046.00
    Current price $1,046.00
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  • Schaeffer's 9000 SynShield OTR Plus Full Synthetic 5W-40

    Schaeffer's
    Original price $281.00 - Original price $528.00
    Original price
    $281.00
    $281.00 - $528.00
    Current price $281.00

    9000 SynShield® OTR Plus 5W-40 Diesel Engine Oil is a premium advanced performance, fully synthetic, heavy-duty diesel engine oil formulated to pro...

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    Original price $281.00 - Original price $528.00
    Original price
    $281.00
    $281.00 - $528.00
    Current price $281.00
  • Kryptonite Replacement Outer Tie Rod End (fabtech Rts And Mcgaughys Lift Kits)

    Kryptonite
    Original price $84.00 - Original price $84.00
    Original price
    $84.00
    $84.00 - $84.00
    Current price $84.00

    Fits; 1999-2022 GM 1500/2500/3500 Trucks Equipped with a Fabtech RTS Lift, McGaughys Lift, Other lifts kits that utilize a 3/4 Taper Stud Outer Rod...

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    Original price $84.00 - Original price $84.00
    Original price
    $84.00
    $84.00 - $84.00
    Current price $84.00
  • Kryptonite Ultimate Front End Package For 2001–2010 Chevy/GMC 1500HD/2500HD/3500 Trucks

    Kryptonite
    Original price $2,087.00 - Original price $2,087.00
    Original price
    $2,087.00
    $2,087.00 - $2,087.00
    Current price $2,087.00

    Fits:  2001–2007 Chevy Silverado / GMC Sierra 1500HD 2001–2010 Chevy Silverado / GMC Sierra 2500HD 2001–2010 Chevy Silverado / GMC Sierra 3500HD Im...

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    Original price $2,087.00 - Original price $2,087.00
    Original price
    $2,087.00
    $2,087.00 - $2,087.00
    Current price $2,087.00
  • Replacement Poly Bump Stop For Kryptonite Upper Control Arms For 2001–2010 Chevy/GMC HD Trucks

    Kryptonite
    Original price $13.00 - Original price $13.00
    Original price
    $13.00
    $13.00 - $13.00
    Current price $13.00

    Fits; 2001–2010 Chevrolet & GMC 1500HD / 2500HD / 3500 Trucks equipped with Kryptonite Upper Control Arms Part# M21017-BK-01 Description: This ...

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    Original price $13.00 - Original price $13.00
    Original price
    $13.00
    $13.00 - $13.00
    Current price $13.00
  • Kryptonite Front Lower Bump Stops For Chevy/GMC 1500HD/2500HD/3500HD Trucks

    Kryptonite
    Original price $70.00 - Original price $70.00
    Original price
    $70.00
    $70.00 - $70.00
    Current price $70.00

    Fits; 2001–2010 Chevrolet & GMC 1500HD / 2500HD / 3500 Trucks Part# KR1426 Description: Over time, factory bump stops wear out from repeated su...

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    Original price $70.00 - Original price $70.00
    Original price
    $70.00
    $70.00 - $70.00
    Current price $70.00
  • Kryptonite Sway Bar End Links 7–9" For 2001–2010 Chevy/GMC HD Trucks

    Kryptonite
    Original price $162.00 - Original price $162.00
    Original price
    $162.00
    $162.00 - $162.00
    Current price $162.00

    Fits; 2001–2019 Chevrolet & GMC 1500HD / 2500HD / 3500 Trucks, Also fits most other GM trucks Important Fitment Info: For use with 7”–9” lift...

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    Original price $162.00 - Original price $162.00
    Original price
    $162.00
    $162.00 - $162.00
    Current price $162.00
  • Kryptonite Sway Bar End Links 4–6" For 2001–2010 Chevy/GMC HD Trucks

    Kryptonite
    Original price $155.00 - Original price $155.00
    Original price
    $155.00
    $155.00 - $155.00
    Current price $155.00

    Fits; 2001–2019 Chevrolet & GMC 1500HD / 2500HD / 3500 Trucks Important Fitment Info: For use with 4”–6” lifted trucks only Measures 11” hole ...

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    Original price $155.00 - Original price $155.00
    Original price
    $155.00
    $155.00 - $155.00
    Current price $155.00
  • Kryptonite Tie Rod Kit For 2001–2010 Chevy/GMC 1500HD/2500HD/3500HD & 2002–2009 Hummer H2

    Kryptonite
    Original price $529.00 - Original price $529.00
    Original price
    $529.00
    $529.00 - $529.00
    Current price $529.00

    Fits: 2001–2010 Chevrolet / GMC 2500HD & 3500HD, Hummer H2 Important Fitment Info:These tie rods are designed for trucks using a factory-style ...

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    Original price $529.00 - Original price $529.00
    Original price
    $529.00
    $529.00 - $529.00
    Current price $529.00
  • S&B Filters 76-1006B Turbo Inlet Manifold

    S&B
    Original price $286.00 - Original price $286.00
    Original price
    $286.00
    $286.00 - $286.00
    Current price $286.00

    S&B Model 76-1006BEvolution at its BestThe S&B 76-1006B Turbo Inlet Manifold for your 2004.5-2005 GM 6.6L Duramax went through dramatic cha...

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    Original price $286.00 - Original price $286.00
    Original price
    $286.00
    $286.00 - $286.00
    Current price $286.00
  • Pro Form Fab 2000-2010 Chevy/GMC 2500/3500 Rear Lift Blocks

    Pro Form Fab
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $176.00
    $176.00 - $257.00
    Current price $176.00

    2000 - 2010 Chevy/GMC 2500/3500 Product Description: We are proud to bring you our Heavy Duty fabricated rear lift blocks. These CNC cut, jig...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $176.00
    $176.00 - $257.00
    Current price $176.00
  • Wehrli Big Hitch Products 2001-2010 GM 2500 / 3500 BEHIND Roll Pan 2.5" Inch Hidden Receiver Hitch

    Wehrli
    Original price $804.00 - Original price $804.00
    Original price
    $804.00
    $804.00 - $804.00
    Current price $804.00

    Wehrli Big Hitch Products Model BHP1015, BHP1029  - SAE J684-05 certified- Class 4+ Receiver- Complete bolt in design- All necessary hardware inclu...

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    Original price $804.00 - Original price $804.00
    Original price
    $804.00
    $804.00 - $804.00
    Current price $804.00
  • ARP GM Duramax 6.6L Harmonic Balancer Bolt Kit

    ARP
    Original price $45.00 - Original price $45.00
    Original price
    $45.00
    $45.00 - $45.00
    Current price $45.00

    ARP Model 129-2503ARP GM Duramax 6.6L Harmonic Balancer Bolt Kit

    Original price $45.00 - Original price $45.00
    Original price
    $45.00
    $45.00 - $45.00
    Current price $45.00
  • Schaeffer's 9012 SynShield OTR Plus Full Synthetic 10W-30

    Schaeffer's
    Original price $436.00 - Original price $528.00
    Original price
    $436.00
    $436.00 - $528.00
    Current price $436.00

    SynShield® OTR Plus 10W-30 Diesel Engine Oil is a premium advanced performance, fully synthetic, heavy-duty diesel engine oil formulated to provide...

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    Original price $436.00 - Original price $528.00
    Original price
    $436.00
    $436.00 - $528.00
    Current price $436.00
  • Smeding Diesel S467 T4 Turbocharger

    Smeding
    Original price $1,685.00 - Original price $2,607.00
    Original price
    $1,685.00
    $1,685.00 - $2,607.00
    Current price $1,685.00

    S467 t4 turbocharger

    Original price $1,685.00 - Original price $2,607.00
    Original price
    $1,685.00
    $1,685.00 - $2,607.00
    Current price $1,685.00
  • Smeding Diesel S464 T4 Turbocharger

    Smeding
    Original price $1,428.00 - Original price $2,212.00
    Original price
    $1,428.00
    $1,428.00 - $2,212.00
    Current price $1,428.00

    s464 t4 turbocharger

    Original price $1,428.00 - Original price $2,212.00
    Original price
    $1,428.00
    $1,428.00 - $2,212.00
    Current price $1,428.00
  • XDP X-tra Cool Direct-fit Transmission Oil Cooler XD309

    XDP
    Original price $346.00 - Original price $346.00
    Original price
    $346.00
    $346.00 - $346.00
    Current price $346.00

    XDP Model XD309The XDP X-TRA Cool Direct-Fit Transmission Oil Cooler XD309 is a direct upgrade for the factory transmission oil cooler in your 2001...

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    Original price $346.00 - Original price $346.00
    Original price
    $346.00
    $346.00 - $346.00
    Current price $346.00
  • Wehrli 01-16 Chevrolet 6.6L LB7/LLY/LBZ/LMM/LML Duramax Up Pipe Bolt Kit

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $54.00
    $54.00 - $54.00
    Current price $54.00

    Wehrli Model WCF100240 ARP Bolt kit for 2001-2016 Duramax Up Pipes or LB7 Turbo Down pipe. 6 Washers and Bolts for installing 1 up pipe. Includes A...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $54.00
    $54.00 - $54.00
    Current price $54.00
  • GM Remanufactured CP3 Injection Pump For 01-04 LB7 Duramax Stock Industrial Injection

    Industrial Injection
    Original price $930.00
    Original price $930.00 - Original price $930.00
    Original price $930.00
    Current price $902.00
    $902.00 - $902.00
    Current price $902.00

    Industrial Injection Model: 0986437303SE-IISThe modified CP3 and CP4 Injection pumps offered by Industrial Injection are a drop in replacement for ...

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    Original price $930.00
    Original price $930.00 - Original price $930.00
    Original price $930.00
    Current price $902.00
    $902.00 - $902.00
    Current price $902.00
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The LLY Duramax powered 2004.5 to 2005 Chevy Silverado HD and GMC Sierra HD trucks. It was the first Duramax with a variable geometry turbo and EGR, which helps it spool faster than the LB7.

Shop LLY Duramax Parts by Category

Not sure what fits? Send us your VIN or call 865.640.2097 and we will match the right part.

LLY Duramax FAQ

What is different about the LLY versus the LB7?

The LLY added a variable geometry turbo and EGR for faster spool and lower emissions.

Are LLY trucks known for overheating?

Some early LLY trucks ran hotter under load. Upgraded cooling parts are a common fix for trucks that tow heavy.

Powerhouse Diesel