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LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

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  • Smeding Diesel S464 T4 90 Degree Cover Turbocharger

    Smeding
    Original price $975.00 - Original price $1,360.00
    Original price
    $975.00
    $975.00 - $1,360.00
    Current price $975.00

    A hand built Smeding Diesel S464 T4 turbo with Smeding's 90 degree 3rd gen style race cover in place of the standard V band cover. Call us to match...

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    Original price $975.00 - Original price $1,360.00
    Original price
    $975.00
    $975.00 - $1,360.00
    Current price $975.00
  • Smeding Diesel S400 4.62 Downpipe with Clamp

    Smeding
    Original price $199.00 - Original price $199.00
    Original price
    $199.00
    $199.00 - $199.00
    Current price $199.00

    Smeding Diesel S400 4.62 Downpipe with Clamp. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN.Question...

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    Original price $199.00 - Original price $199.00
    Original price
    $199.00
    $199.00 - $199.00
    Current price $199.00
  • KC 360 Turbo Rebuild kit - 6.0 POWERSTROKE, LBZ & LLY- 300018

    Kc Turbo
    Original price $79.00 - Original price $79.00
    Original price
    $79.00
    $79.00 - $79.00
    Current price $79.00

    Upgraded 360 degree thrust bearing New thrust collar New oil slinger New piston rings New journal bearings & sleeve New compressor cover o-rin...

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    Original price $79.00 - Original price $79.00
    Original price
    $79.00
    $79.00 - $79.00
    Current price $79.00
  • XDP Fuel Tank Sump, One Hole with Fuel Return XD243

    XDP
    Original price $185.95 - Original price $185.95
    Original price
    $185.95
    $185.95 - $185.95
    Current price $185.95

    XDP Fuel Tank Sump, One Hole with Fuel Return XD243. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN. ...

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    Original price $185.95 - Original price $185.95
    Original price
    $185.95
    $185.95 - $185.95
    Current price $185.95
  • BorgWarner S400 SX-E 360 Thrust / 83mm & 87mm Turbine Service Kit

    BorgWarner
    Original price $127.64
    Original price $127.64 - Original price $127.64
    Original price $127.64
    Current price $102.11
    $102.11 - $102.11
    Current price $102.11

    BorgWarner S400 SX-E 360 Thrust / 83mm & 87mm Turbine Service Kit. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop ...

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    Original price $127.64
    Original price $127.64 - Original price $127.64
    Original price $127.64
    Current price $102.11
    $102.11 - $102.11
    Current price $102.11
    Save 20% Save %
  • Smeding Diesel S363 SXE Turbocharger

    Smeding
    Original price $730.00 - Original price $1,265.00
    Original price
    $730.00
    $730.00 - $1,265.00
    Current price $730.00

    A hand built Smeding Diesel S363 SXE turbo. Call us to match the housings and fitment to your truck and power goals.Questions on fitment? Call our ...

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    Original price $730.00 - Original price $1,265.00
    Original price
    $730.00
    $730.00 - $1,265.00
    Current price $730.00
  • HP Tuners MPVI4

    HP Tuners
    Original price $399.99 - Original price $399.99
    Original price
    $399.99
    $399.99 - $399.99
    Current price $399.99

    HP Tuners' newest vehicle interface, the MPVI4, for custom calibration, diagnostics and data logging.Questions on fitment? Call our shop at 865 640...

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    Original price $399.99 - Original price $399.99
    Original price
    $399.99
    $399.99 - $399.99
    Current price $399.99
  • Mishimoto Black Steel Spiked Lug Nuts M14 x 1.5, 32 Piece

    Mishimoto
    Original price $115.00
    Original price $115.00 - Original price $115.00
    Original price $115.00
    Current price $104.95
    $104.95 - $104.95
    Current price $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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    Original price $115.00
    Original price $115.00 - Original price $115.00
    Original price $115.00
    Current price $104.95
    $104.95 - $104.95
    Current price $104.95
    Save 9% Save %
  • Wehrli Billet Aluminum Competition Kill Switch

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $195.00
    $195.00 - $195.00
    Current price $195.00

    Wehrli Big Hitch Products Model BHP4010 Universal Kill Switch for Competition Pulling Vehicles to cut ground wire circuit of Ignition, Fuel pump...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $195.00
    $195.00 - $195.00
    Current price $195.00
  • XDP New Power Steering Pump with Reservoir | 2001 to 2010 GM 2500 3500

    XDP
    Original price $207.95 - Original price $207.95
    Original price
    $207.95
    $207.95 - $207.95
    Current price $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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    Original price $207.95 - Original price $207.95
    Original price
    $207.95
    $207.95 - $207.95
    Current price $207.95
  • XDP Harmonic Balancer Bolt XD628

    XDP
    Original price $24.95 - Original price $24.95
    Original price
    $24.95
    $24.95 - $24.95
    Current price $24.95

    XDP Harmonic Balancer Bolt XD628. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN. Part number: XD628...

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    Original price $24.95 - Original price $24.95
    Original price
    $24.95
    $24.95 - $24.95
    Current price $24.95
  • DDP Common Rail High Pressure Diesel Injection System Cleaner

    DDP
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $47.50
    $47.50 - $47.50
    Current price $47.50

    A heavy duty, one time use cleaner for the whole common rail fuel system. It removes contamination and resin buildup. Part number: DDPCRCLEAN Ques...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $47.50
    $47.50 - $47.50
    Current price $47.50
  • XDP Billet Tow and Race Flex Plate | 2001 to 2016 Duramax with Allison 1000

    XDP
    Original price $271.95 - Original price $271.95
    Original price
    $271.95
    $271.95 - $271.95
    Current price $271.95

    XDP Billet Tow and Race Flex Plate for the 2001 to 2016 Duramax with Allison 1000. Sold and shipped by Powerhouse Diesel, a diesel repair and perfo...

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    Original price $271.95 - Original price $271.95
    Original price
    $271.95
    $271.95 - $271.95
    Current price $271.95
  • Wehrli 2001+ GM Duramax LB7/LLY/LBZ/LMM/LML/L5P Billet Oil Fill Cap - Clear Anodized

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $51.41
    $51.41 - $51.41
    Current price $51.41

    Wehrli Model WCF100442Wehrli 2001+ GM Duramax LB7/LLY/LBZ/LMM/LML/L5P Billet Oil Fill Cap - Clear Anodized Clean up the engine bay of your 2001-202...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $51.41
    $51.41 - $51.41
    Current price $51.41
  • Wehrli 04.5-2010 Duramax LLY/LBZ/LMM Crankcase Vent (PCV) Fitting Kit - Billet Black Anodized

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $46.08
    $46.08 - $46.08
    Current price $46.08

    Wehrli Model WCF100189Wehrli 04.5-2010 Duramax LLY/LBZ/LMM Crankcase Vent (PCV) Fitting Kit - Billet Black Anodized Kit includes two CNC machined...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $46.08
    $46.08 - $46.08
    Current price $46.08
  • Wehrli 01-05 Chevrolet 6.6L LB7/LLY Duramax Upper Coolant Pipe

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $144.53
    $144.53 - $144.53
    Current price $144.53

    Wehrli Model WCF100860 Aluminum Upper Coolant Pipe for LB7/LLY Duramax replaces the OEM rubber upper coolant hose and comes powder coated color of ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $144.53
    $144.53 - $144.53
    Current price $144.53
  • Fleece CP3 Adapter Kit with O Rings | 2001 to 2016 Duramax

    Fleece Performance
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $66.49
    $66.49 - $66.49
    Current price $66.49

    Fleece Performance Model FPE-DMAX-CP3-ADPTReplacement CP3 adapter machined from billet aluminum for the 2001-2016 GM Duramax. Includes new O-rings ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $66.49
    $66.49 - $66.49
    Current price $66.49
  • South Bend Clutch Chevy Duramax 6.6L Replacemnt Hydraulic Assembly

    South Bend Clutch
    Original price $209.38
    Original price $209.38 - Original price $209.38
    Original price $209.38
    Current price $203.10
    $203.10 - $203.10
    Current price $203.10

    Fits: 8 vehicle models, including 2001 to 2006 Chevrolet Silverado 2500 HD; 2001 to 2006 Chevrolet Silverado 3500; 2001 to 2006 GMC Sierra 2500 HD....

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    Original price $209.38
    Original price $209.38 - Original price $209.38
    Original price $209.38
    Current price $203.10
    $203.10 - $203.10
    Current price $203.10
    Save 3% Save %
  • GM FCA For 2004.5-2005 LLY 6.6L Duramax Industrial Injection

    Industrial Injection
    Original price $199.87 - Original price $199.87
    Original price
    $199.87
    $199.87 - $199.87
    Current price $199.87

    GM FCA For 2004.5 to 2005 LLY 6.6L Duramax Industrial Injection. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Kno...

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    Original price $199.87 - Original price $199.87
    Original price
    $199.87
    $199.87 - $199.87
    Current price $199.87
  • FASS Titanium 165 GPH TS C10 165G | 2001 to 2010 GM 2500 3500 Duramax

    FASS Fuel Systems
    Original price $793.68
    Original price $793.68 - Original price $793.68
    Original price $793.68
    Current price $754.00
    $754.00 - $754.00
    Current price $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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    Original price $793.68
    Original price $793.68 - Original price $793.68
    Original price $793.68
    Current price $754.00
    $754.00 - $754.00
    Current price $754.00
    Save 5% Save %
  • Pusher Max HD Charge Tube for 2004.5-05 Duramax LLY Trucks

    Pusher Intakes
    Original price $349.99 - Original price $349.99
    Original price
    $349.99
    $349.99 - $349.99
    Current price $349.99

    Pusher Max HD Charge Tube for 2004.5 to 2005 Duramax LLY Trucks. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Kno...

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    Original price $349.99 - Original price $349.99
    Original price
    $349.99
    $349.99 - $349.99
    Current price $349.99
  • Schaeffer's 0204SAT All-Trans Supreme ATF

    Schaeffer's
    Original price $235.68 - Original price $384.60
    Original price
    $235.68
    $235.68 - $384.60
    Current price $235.68

    Schaeffer's All Trans Supreme is a full synthetic multi vehicle ATF for smoother shifts and less wear on clutches, gears and pumps.Questions on fit...

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    Original price $235.68 - Original price $384.60
    Original price
    $235.68
    $235.68 - $384.60
    Current price $235.68
  • Kryptonite Remote Reservoir Mount Kit For 2001 to 2010 Chevy/GMC HD Trucks & 2002 to 2009 Hummer H2

    Kryptonite
    Original price $170.99 - Original price $170.99
    Original price
    $170.99
    $170.99 - $170.99
    Current price $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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    Original price $170.99 - Original price $170.99
    Original price
    $170.99
    $170.99 - $170.99
    Current price $170.99
  • Kryptonite Inner Tie Rod Tool For Chevy/GMC Trucks

    Kryptonite
    Original price $28.49 - Original price $28.49
    Original price
    $28.49
    $28.49 - $28.49
    Current price $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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    Original price $28.49 - Original price $28.49
    Original price
    $28.49
    $28.49 - $28.49
    Current price $28.49

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.