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LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

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    XDP Custom Fender Cover XD372

    XDP
    $25.95 - $25.95
    $25.95
    $25.95 - $25.95
    $25.95

    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...

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    $25.95 - $25.95
    $25.95
    $25.95 - $25.95
    $25.95
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    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...

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    $64.95 - $64.95
    $64.95
    $64.95 - $64.95
    $64.95
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    Smeding Diesel S475 T4 Turbocharger

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

    A hand built Smeding Diesel S475 turbo with a T4 flange for big single and compound setups. Call us to match the housings and fitment to your truck...

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    $1,150.00 - $1,780.00
    $1,150.00
    $1,150.00 - $1,780.00
    $1,150.00
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    Smeding Diesel S369 SXE Turbocharger

    Smeding
    $975.00 - $1,265.00
    $975.00
    $975.00 - $1,265.00
    $975.00

    A hand built Smeding Diesel S369 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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    $975.00 - $1,265.00
    $975.00
    $975.00 - $1,265.00
    $975.00
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    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. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN.Questions on fit...

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    $730.00 - $1,265.00
    $730.00
    $730.00 - $1,265.00
    $730.00
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    XDP 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 ...

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    $299.95 - $299.95
    $299.95
    $299.95 - $299.95
    $299.95
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    XDP X-tra Cool Direct-fit Replacement Radiator XD295

    XDP
    $355.95 - $355.95
    $355.95
    $355.95 - $355.95
    $355.95

    XDP Model XD295The XDP X-TRA Cool Direct-Fit Replacement Radiator XD295 is an upgrade for the old leaking radiator in your 2001-2005 GM 6.6L Durama...

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    $355.95 - $355.95
    $355.95
    $355.95 - $355.95
    $355.95
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    H&S 64mm BorgWarner SX-E Turbo, 1.0 Turbine Housing

    H&S Motorsports
    $0.00 - $0.00
    $0.00
    $1,200.00
    $1,200.00 - $1,200.00
    $1,200.00

    H&S Motorsports Model 565804-10 Applications Universal Description We have performed extensive testing of BorgWarner's new SX-E line of...

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    $0.00 - $0.00
    $0.00
    $1,200.00
    $1,200.00 - $1,200.00
    $1,200.00
  • responsive-image responsive-image Save 20% Save %

    BorgWarner S400 SX-E 360 Thrust / 96mm Turbine Service Kit

    BorgWarner
    $131.72
    $131.72 - $131.72
    $131.72
    $105.37
    $105.37 - $105.37
    $105.37

    BorgWarner S400 SX-E 360 Thrust / 96mm Turbine Service Kit. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxvill...

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    $131.72
    $131.72 - $131.72
    $131.72
    $105.37
    $105.37 - $105.37
    $105.37
    Save 20% Save %
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    BorgWarner S300 SX-E (360 Thrust) Turbo Repair Kit

    BorgWarner
    $188.32
    $188.32 - $188.32
    $188.32
    $150.66
    $150.66 - $150.66
    $150.66

    BorgWarner S300 SX-E (360 Thrust) Turbo Repair Kit. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN. ...

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    $188.32
    $188.32 - $188.32
    $188.32
    $150.66
    $150.66 - $150.66
    $150.66
    Save 20% Save %
  • responsive-image responsive-image Save 9% Save %

    Mishimoto 01-19 Duramax Allison A1000 Transmission Pan Cast GR

    Mishimoto
    $452.00
    $452.00 - $452.00
    $452.00
    $410.95
    $410.95 - $410.95
    $410.95

    This Mishimoto Aluminum Transmission Pan is a direct-fit, high-performance upgrade for your 2001-2019 Chevy/GMC 6.6L Duramax. Cast from high-qualit...

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    $452.00
    $452.00 - $452.00
    $452.00
    $410.95
    $410.95 - $410.95
    $410.95
    Save 9% Save %
  • Premium Quad-Row Multi-Function LED Tailgate Light Strip. Premium Quad-Row Multi-Function LED Tailgate Light Strip.

    Rough Country Quad Row LED Tailgate Light Strip

    Rough Country
    $49.95 - $54.95
    $49.95
    $49.95 - $54.95
    $49.95

    Rough Country Quad Row LED Tailgate Light Strip. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN.Quest...

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    $49.95 - $54.95
    $49.95
    $49.95 - $54.95
    $49.95
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    Wehrli WCFab Billet Coolant Tank Cap, Black

    Wehrli
    $0.00 - $0.00
    $0.00
    $38.80
    $38.80 - $38.80
    $38.80

    Wehrli Model WCF100543Wehrli WCFab Coolant Tank Billet Cap - Black Anodized 18-20PSI Replacement Coolant Tank Cap, Black Anodized. Used on WCFab Fa...

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    $0.00 - $0.00
    $0.00
    $38.80
    $38.80 - $38.80
    $38.80
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    FASS 01-10 GM 2500/3500 Duramax 100gph Titanium Series Plus Fuel Air Separation System

    FASS Fuel Systems
    $777.89
    $777.89 - $777.89
    $777.89
    $739.00
    $739.00 - $739.00
    $739.00

    FASS 2001 to 2010 GM 2500/3500 Duramax 100gph Titanium Series Plus Fuel Air Separation System. Sold and shipped by Powerhouse Diesel, a diesel repa...

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    $777.89
    $777.89 - $777.89
    $777.89
    $739.00
    $739.00 - $739.00
    $739.00
    Save 5% Save %
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    Kryptonite Lifetime Warranty Wheel Bearing 2001-2007 (classic)

    Kryptonite
    $332.49 - $332.49
    $332.49
    $332.49 - $332.49
    $332.49

    Kryptonite Model KR310FITMENT: 2001-2007 Chevrolet Silverado 2500 HD 2001-2007 GMC Sierra 2500 HD 2001-2007 Chevrolet Silverado 3500 SRW & DRW...

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    $332.49 - $332.49
    $332.49
    $332.49 - $332.49
    $332.49
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    Kryptonite Upper Control Arm Bushing Kit (Poly Only) For 2001 to 2010 Chevy/GMC Trucks/SUVS

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

    Kryptonite Model KRBUCA10-UOFits; 2001–2010 Chevrolet & GMC 1500HD / 2500 / 2500HD / 3500 / 3500HD (2WD & 4WD), 2001–2013 Chevrolet & G...

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    $33.24 - $33.24
    $33.24
    $33.24 - $33.24
    $33.24
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    Rough Country M1R Monotube Rear Shocks, 3 to 6.5 Inch | 2000 to 2010 GM 2500 SUV

    Rough Country
    $349.95 - $349.95
    $349.95
    $349.95 - $349.95
    $349.95

    Rough Country M1R Monotube Rear Shocks, 3 to 6.5 Inch for the 2000 to 2010 GM 2500 SUV. Sold and shipped by Powerhouse Diesel, a diesel repair and ...

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    $349.95 - $349.95
    $349.95
    $349.95 - $349.95
    $349.95
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    XDP Barometric Pressure Sensor XD1013 | LB7 and LLY Duramax

    XDP
    $34.95 - $34.95
    $34.95
    $34.95 - $34.95
    $34.95

    XDP Model XD1013The XDP Barometric Pressure Sensor XD1013 will help get your GM Silverado/Sierra 6.6L Duramax LB7/LLY up and running again. All XDP...

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    $34.95 - $34.95
    $34.95
    $34.95 - $34.95
    $34.95
  • Photo - Primary Photo - Primary Save 5% Save %

    FASS Duramax Filter Delete DFD-4000

    FASS Fuel Systems
    $88.15
    $88.15 - $88.15
    $88.15
    $83.74
    $83.74 - $83.74
    $83.74

    FASS Fuel Systems Model DFD4000FASS Duramax Filter Delete DFD-4000

    $88.15
    $88.15 - $88.15
    $88.15
    $83.74
    $83.74 - $83.74
    $83.74
    Save 5% Save %
  • Photo - Primary Photo - Primary

    ARP 01-10 6.6L GM Duramax Diesel Head Stud Kit

    ARP
    $814.20 - $814.20
    $814.20
    $814.20 - $814.20
    $814.20

    Fits: 10 vehicle models, including 2001 to 2013 Chevrolet Silverado 2500 HD; 2001 to 2013 GMC Sierra 2500 HD; 2006 to 2013 Chevrolet Express 2500. ...

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    $814.20 - $814.20
    $814.20
    $814.20 - $814.20
    $814.20
  • User 1 Photo - Primary Save 9% Save %

    Mishimoto Steel Spiked Lug Nuts M14 x 1.5 32pc Set Blue

    Mishimoto
    $122.00
    $122.00 - $122.00
    $122.00
    $110.95
    $110.95 - $110.95
    $110.95

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

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    $122.00
    $122.00 - $122.00
    $122.00
    $110.95
    $110.95 - $110.95
    $110.95
    Save 9% Save %
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    Wehrli Clamp On Sled Stops, Behind Roll Pan

    Wehrli
    $0.00 - $0.00
    $0.00
    $320.00
    $320.00 - $320.00
    $320.00

    Wehrli Clamp On Sled Stops, Behind Roll Pan. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Knoxville, TN. Part nu...

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    $0.00 - $0.00
    $0.00
    $320.00
    $320.00 - $320.00
    $320.00
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    XDP Stock+ Power Steering Gearbox | 2001 to 2007 GM 2500HD 3500HD

    XDP
    $728.95 - $728.95
    $728.95
    $728.95 - $728.95
    $728.95

    Replace the worn steering gear in your Chevy Silverado or GMC Sierra 2500HD/3500HD with the XDP Stock+ Power Steering Gearbox (New) XD746. The most...

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    $728.95 - $728.95
    $728.95
    $728.95 - $728.95
    $728.95
  • S&S Diesel Motorsport LLY Duramax (2004.5-2005) Injectors -Set. S&S Diesel Motorsport LLY Duramax (2004.5-2005) Injectors -Set.

    S&S Diesel Motorsport LLY Duramax (2004.5-2005) Injectors -Set

    S&S
    $3,792.00 - $7,224.00
    $3,792.00
    $3,792.00 - $7,224.00
    $3,792.00

    S&S Diesel Motorsport injectors for the 2004.5 to 2005 LLY Duramax, sold as a set. The nozzles are honed and flow matched to within 1% per set....

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    $3,792.00 - $7,224.00
    $3,792.00
    $3,792.00 - $7,224.00
    $3,792.00
    Select Options

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.