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LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

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

    Kryptonite
    Original price $85.49 - Original price $85.49
    Original price
    $85.49
    $85.49 - $85.49
    Current price $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...

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    Original price $85.49 - Original price $85.49
    Original price
    $85.49
    $85.49 - $85.49
    Current price $85.49
  • KC Billet Unison Ring | 6.0 Powerstroke, LLY and LBZ Duramax

    Kc Turbo
    Original price $159.00 - Original price $159.00
    Original price
    $159.00
    $159.00 - $159.00
    Current price $159.00

    KC Billet Unison Ring for the 6.0 Powerstroke, LLY and LBZ Duramax. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in ...

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    Original price $159.00 - Original price $159.00
    Original price
    $159.00
    $159.00 - $159.00
    Current price $159.00
  • S&B Cold Air Intake Kit 75-5102, Cleanable Filter

    S&B
    Original price $399.00 - Original price $399.00
    Original price
    $399.00
    $399.00 - $399.00
    Current price $399.00

    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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    Original price $399.00 - Original price $399.00
    Original price
    $399.00
    $399.00 - $399.00
    Current price $399.00
  • XDP Duramax Cat Adapter With 1R-0750 Filter, Bleeder Screw & Spacer XD171

    XDP
    Original price $109.95 - Original price $109.95
    Original price
    $109.95
    $109.95 - $109.95
    Current price $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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    Original price $109.95 - Original price $109.95
    Original price
    $109.95
    $109.95 - $109.95
    Current price $109.95
  • H&S 72mm BorgWarner SX-E Turbo, 1.0 Turbine Housing

    H&S Motorsports
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $1,300.00
    $1,300.00 - $1,300.00
    Current price $1,300.00

    H&S Motorsports Model 565811-10 Applications Universal Description We have performed extensive testing of BorgWarner's new SX-E line of...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $1,300.00
    $1,300.00 - $1,300.00
    Current price $1,300.00
  • H&S 66mm BorgWarner SX-E Turbo, .91 Turbine Housing

    H&S Motorsports
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $1,250.00
    $1,250.00 - $1,250.00
    Current price $1,250.00

    H&S Motorsports Model 565805 Applications Universal Description We have performed extensive testing of BorgWarner's new SX-E line of tu...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $1,250.00
    $1,250.00 - $1,250.00
    Current price $1,250.00
  • BorgWarner S400 Turbo Repair Kit

    BorgWarner
    Original price $182.93 - Original price $182.93
    Original price
    $182.93
    $182.93 - $182.93
    Current price $182.93

    BorgWarner S400 Turbo Repair Kit. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN. Part number: 31839...

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    Original price $182.93 - Original price $182.93
    Original price
    $182.93
    $182.93 - $182.93
    Current price $182.93
  • Wehrli 04.5-10 Chevrolet 6.6L LLY/LBZ/LMM Duramax Driver Side 3in Intercooler Pipe

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $305.55
    $305.55 - $305.55
    Current price $305.55

    Wehrli Model WCF100352 LLY, LBZ, LMM Duramax One Piece High Flow 3" Driver Side Intercooler pipe. Replaces the 2 1/2" OEM inter cooler with a full ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $305.55
    $305.55 - $305.55
    Current price $305.55
  • Wehrli 2 Inch Stainless Driver Side Up Pipe | 2001 to 2016 Duramax

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $334.65
    $334.65 - $334.65
    Current price $334.65

    Wehrli Model WCF100652Wehrli 01-16 Chevrolet 6.6L Duramax 2in Stainless Driver Side Up Pipe w/Gaskets (Single/Twin Turbo) Replace the lightweight 1...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $334.65
    $334.65 - $334.65
    Current price $334.65
  • Wehrli License Plate Mount Bracket

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $92.00
    $92.00 - $92.00
    Current price $92.00

    Wehrli License Plate Mount Bracket. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN. Part number: BHP...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $92.00
    $92.00 - $92.00
    Current price $92.00
  • Wehrli 99-23 GM Billet Coolant Heater Core Firewall Fitting

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $40.74
    $40.74 - $40.74
    Current price $40.74

    Wehrli 1999 to 2023 GM Billet Coolant Heater Core Firewall Fitting. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $40.74
    $40.74 - $40.74
    Current price $40.74
  • S&S Diesel Motorsport Duramax 12mm CP3 High Speed (1,590 mm3 /rev displacement) -New

    S&S
    Original price $2,743.00 - Original price $2,743.00
    Original price
    $2,743.00
    $2,743.00 - $2,743.00
    Current price $2,743.00

    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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    Original price $2,743.00 - Original price $2,743.00
    Original price
    $2,743.00
    $2,743.00 - $2,743.00
    Current price $2,743.00
  • S&S Diesel Motorsport Duramax SuperSport CP3 (higher output >3500rpm) - New

    S&S
    Original price $1,273.00 - Original price $1,273.00
    Original price
    $1,273.00
    $1,273.00 - $1,273.00
    Current price $1,273.00

    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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    Original price $1,273.00 - Original price $1,273.00
    Original price
    $1,273.00
    $1,273.00 - $1,273.00
    Current price $1,273.00
  • S&S Diesel Motorsport LLY Duramax (2004.5-2005 )TorqueMaster Injectors Set - Reman or New

    S&S
    Original price $2,888.00 - Original price $3,352.00
    Original price
    $2,888.00
    $2,888.00 - $3,352.00
    Current price $2,888.00

    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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    Original price $2,888.00 - Original price $3,352.00
    Original price
    $2,888.00
    $2,888.00 - $3,352.00
    Current price $2,888.00
  • XDP Xtra Cool Water Pump with Housing XD666

    XDP
    Original price $157.95 - Original price $157.95
    Original price
    $157.95
    $157.95 - $157.95
    Current price $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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    Original price $157.95 - Original price $157.95
    Original price
    $157.95
    $157.95 - $157.95
    Current price $157.95
  • Wehrli 04.5-16 Chevrolet 6.6L LLY/LBZ/LMM/LML Duramax VGT Exhaust Housing Heat Blanket

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $155.20
    $155.20 - $155.20
    Current price $155.20

    Wehrli Model WCF100733Wehrli 04.5-16 Chevrolet 6.6L LLY/LBZ/LMM/LML Duramax VGT Exhaust Housing Heat Blanket - VGT turbo heat blanket for 2004.5-20...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $155.20
    $155.20 - $155.20
    Current price $155.20
  • Fleece Performance Duramax Remote Turbo Oil Feed Line Kit for 01-16 Duramax/w 1/4 NPT Oil Inlet

    Fleece Performance
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $99.99
    $99.99 - $99.99
    Current price $99.99

    Fleece Performance Model FPE-DTFL-S3S4-0116Problem: The factory turbo oil feed used on 2001-2016 Duramax's is supplied off of the #4 cam journal be...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $99.99
    $99.99 - $99.99
    Current price $99.99
  • Mishimoto 03-05 Chevrolet / GMC 6.6L Duramax (LB7/LLY) Transmission Cooler

    Mishimoto
    Original price $346.00
    Original price $346.00 - Original price $346.00
    Original price $346.00
    Current price $314.95
    $314.95 - $314.95
    Current price $314.95

    There's no greater enemy for a transmission than heat. Whether your 2003-2005 Chevy/GMC 6.6L Duramax is a dedicated tow vehicle, hardworking fleet ...

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    Original price $346.00
    Original price $346.00 - Original price $346.00
    Original price $346.00
    Current price $314.95
    $314.95 - $314.95
    Current price $314.95
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  • Rough Country 2 Inch Receiver D Ring Kit with Pin

    Rough Country
    Original price $29.95 - Original price $29.95
    Original price
    $29.95
    $29.95 - $29.95
    Current price $29.95

    Rough Country 2 Inch Receiver D Ring Kit with Pin. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN. P...

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    Original price $29.95 - Original price $29.95
    Original price
    $29.95
    $29.95 - $29.95
    Current price $29.95
  • Pusher Max HD Charge Tube Package for 2004.5-05 Duramax LLY Trucks

    Pusher Intakes
    Original price $559.99 - Original price $559.99
    Original price
    $559.99
    $559.99 - $559.99
    Current price $559.99

    Pusher's Max HD charge tube package for the 2004.5 to 2005 LLY Duramax, with 93% more air and a secure fit on the factory Y bridge. Not emissions c...

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    Original price $559.99 - Original price $559.99
    Original price
    $559.99
    $559.99 - $559.99
    Current price $559.99
  • S&B Body Mount Kit | 2001 to 2005 GM 1500, 2500, 3500 Extended and Crew Cab

    S&B
    Original price $499.00 - Original price $499.00
    Original price
    $499.00
    $499.00 - $499.00
    Current price $499.00

    S&B Body Mount Kit for the 2001 to 2005 GM 1500, 2500, 3500 Extended and Crew Cab. Sold and shipped by Powerhouse Diesel, a diesel repair and p...

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    Original price $499.00 - Original price $499.00
    Original price
    $499.00
    $499.00 - $499.00
    Current price $499.00
  • Kryptonite Solid Steel Tie Rod Sleeves Zinc Plated For 2001 to 2010 Chevy/GMC HD Trucks

    Kryptonite
    Original price $33.24 - Original price $33.24
    Original price
    $33.24
    $33.24 - $33.24
    Current price $33.24

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

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    Original price $33.24 - Original price $33.24
    Original price
    $33.24
    $33.24 - $33.24
    Current price $33.24
  • Kryptonite Press In Upper Ball Joint For Stock Control Arm For 2001 to 2010 Chevy/GMC HD Trucks & Hummer H2

    Kryptonite
    Original price $56.99 - Original price $56.99
    Original price
    $56.99
    $56.99 - $56.99
    Current price $56.99

    Fits:2001–2010 Chevy/GMC 1500HD / 2500HD / 3500HD & Hummer H2 with stock control arms only Features: Heavy-Duty Construction – Engineered for ...

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    Original price $56.99 - Original price $56.99
    Original price
    $56.99
    $56.99 - $56.99
    Current price $56.99
  • Kryptonite Upper and Lower Ball Joints for Stock Arms | 2001 to 2010 GM HD

    Kryptonite
    Original price $189.99 - Original price $189.99
    Original price
    $189.99
    $189.99 - $189.99
    Current price $189.99

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

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    Original price $189.99 - Original price $189.99
    Original price
    $189.99
    $189.99 - $189.99
    Current price $189.99

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.