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LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

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  • Bilstein B8 5160 Series Shock Absorber 1999 Chevrolet Silverado 2500 Front For 2-2.5in Lift

    Bilstein
    Original price $424.00 - Original price $424.00
    Original price
    $424.00
    $424.00 - $424.00
    Current price $424.00

    Bilstein B8 5160 remote reservoir shock absorbers are designed as a direct fit solution for lifted trucks and SUV’s. The remote reservoir will of...

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    Original price $424.00 - Original price $424.00
    Original price
    $424.00
    $424.00 - $424.00
    Current price $424.00
  • Bilstein B8 5160 Series 11-23 Chevrolet Silverado HD Rear Shock Absorber

    Bilstein
    Original price $424.00 - Original price $424.00
    Original price
    $424.00
    $424.00 - $424.00
    Current price $424.00

    Bilstein B8 5160 remote reservoir shock absorbers are designed as a direct fit solution for lifted trucks and SUV’s. The remote reservoir will of...

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    Original price $424.00 - Original price $424.00
    Original price
    $424.00
    $424.00 - $424.00
    Current price $424.00
  • Lund Universal Challenger Tool Box - Brite

    LUND
    Original price $2,258.00 - Original price $2,258.00
    Original price
    $2,258.00
    $2,258.00 - $2,258.00
    Current price $2,258.00

    Strength, functionality and great looks, for professional quality are yours with the Challenger line of storages boxes. Each box features twin comm...

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    Original price $2,258.00 - Original price $2,258.00
    Original price
    $2,258.00
    $2,258.00 - $2,258.00
    Current price $2,258.00
  • GM Bag Of Parts For 2004.5-2006 LLY 6.6L Duramax Industrial Injection

    Industrial Injection
    Original price $737.00
    Original price $737.00 - Original price $737.00
    Original price $737.00
    Current price $715.00
    $715.00 - $715.00
    Current price $715.00

    Industrial Injection Model: 433403Do It Yourself Parts For Your Stock Injection Pump. It Will Gain 19 percent More Fuel Volume.

    Original price $737.00
    Original price $737.00 - Original price $737.00
    Original price $737.00
    Current price $715.00
    $715.00 - $715.00
    Current price $715.00
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  • Duramax Compound Turbo Oil Feed Line

    Pusher Intakes
    Original price $56.00 - Original price $56.00
    Original price
    $56.00
    $56.00 - $56.00
    Current price $56.00

    Pusher Model DOFL Duramax Compound Turbo Oil Feed Line

    Original price $56.00 - Original price $56.00
    Original price
    $56.00
    $56.00 - $56.00
    Current price $56.00
  • XDP XTRA Cool Water Pump Housing (Housing Only) XD684

    XDP
    Original price $91.00 - Original price $91.00
    Original price
    $91.00
    $91.00 - $91.00
    Current price $91.00

    XDP Model XD6842001-2005 GM 6.6L Duramax LB7/LLY | 2003-2005 GM Kodiak/Topkick C4500/C5500 6.6L DuramaxThe XDP X-TRA Cool Water Pump Housing (Housi...

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    Original price $91.00 - Original price $91.00
    Original price
    $91.00
    $91.00 - $91.00
    Current price $91.00
  • XDP XTRA Cool Water Pump (Pump Only) XD665

    XDP
    Original price $116.00 - Original price $116.00
    Original price
    $116.00
    $116.00 - $116.00
    Current price $116.00

    XDP Model XD6652001-2005 GM 6.6L Duramax LB7/LLY | 2003-2005 GM Kodiak/Topkick C4500/C5500 6.6L DuramaxReplace the failed water pump on your GM 6.6...

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    Original price $116.00 - Original price $116.00
    Original price
    $116.00
    $116.00 - $116.00
    Current price $116.00
  • Fleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LMM) - Long Line

    Fleece Performance
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $205.00
    $205.00 - $205.00
    Current price $205.00

    Fleece Performance Model FPE-TL-LB7-LMM-LONG-SERFleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LMM) - Long Line ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $205.00
    $205.00 - $205.00
    Current price $205.00
  • Fleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LLY) - Short Line

    Fleece Performance
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $118.00
    $118.00 - $118.00
    Current price $118.00

    Fleece Performance Model FPE-TL-LB7-LLY-SHORT-SERFleece Performance 01-05 GM 2500/3500 Duramax Replacement Transmission Line (LB7/LLY) - Short Line...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $118.00
    $118.00 - $118.00
    Current price $118.00
  • V2 Steering Stabilizer | Multiple Makes & Models (Chevy/GMC/Jeep)

    Rough Country
    Original price $176.00 - Original price $176.00
    Original price
    $176.00
    $176.00 - $176.00
    Current price $176.00

    Superior Design and Comfort. Give yourself peace of mind when upgrading to a larger wheel and tire set up with Rough Country's V2 stabilizers! Stee...

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    Original price $176.00 - Original price $176.00
    Original price
    $176.00
    $176.00 - $176.00
    Current price $176.00
  • V2 Rear Shocks | 0-3.5" | Chevy/GMC 2500HD/3500HD (01-26)

    Rough Country
    Original price $381.00 - Original price $381.00
    Original price
    $381.00
    $381.00 - $381.00
    Current price $381.00

    Whether youre tackling tough terrain or smooth city streets, Rough Countrys Nitrogen-charged V2 Monotube Shock Absorber leads the way, delivering i...

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    Original price $381.00 - Original price $381.00
    Original price
    $381.00
    $381.00 - $381.00
    Current price $381.00
  • M1 Monotube Rear Shocks | 5-7" | Chevy/GMC 2500HD/3500HD (01-26)

    Rough Country
    Original price $264.00 - Original price $264.00
    Original price
    $264.00
    $264.00 - $264.00
    Current price $264.00

    Whether you're tackling tough terrain or smooth city streets, Rough Country's Nitrogen-charged M1 Monotube Shock Absorber leads the way, delivering...

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    Original price $264.00 - Original price $264.00
    Original price
    $264.00
    $264.00 - $264.00
    Current price $264.00
  • N3 Front Shocks | 5.5-7" | Chevy/GMC 2500HD 2WD/4WD (01-10)

    Rough Country
    Original price $176.00 - Original price $176.00
    Original price
    $176.00
    $176.00 - $176.00
    Current price $176.00

    Improve your on and off-road ride quality with Rough Country's premium N3 shocks! These 10-stage variable valving, high-pressure Nitrogen charged s...

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    Original price $176.00 - Original price $176.00
    Original price
    $176.00
    $176.00 - $176.00
    Current price $176.00
  • N3 Steering Stabilizer | Multiple Makes & Models (Chevy/GMC/Jeep)

    Rough Country
    Original price $59.00 - Original price $59.00
    Original price
    $59.00
    $59.00 - $59.00
    Current price $59.00

    Reduce bump steer and improve ride quality with Rough Country's Steering Stabilizer for Jeep TJ, YJ, XJ, ZJ, WJ models. This nitrogen-charged N3 St...

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    Original price $59.00 - Original price $59.00
    Original price
    $59.00
    $59.00 - $59.00
    Current price $59.00
  • Rough Country 95 Series Wheel | One-Piece | Gloss Black Machined | 20x10 | 8x6.5 | -19mm

    Rough Country
    Original price $462.00 - Original price $462.00
    Original price
    $462.00
    $462.00 - $462.00
    Current price $462.00

    Set yourself apart from the pack with Rough Countrys One-Piece Series 95 Wheels. This 8-spoke black and machined wheel offers an incredible look th...

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    Original price $462.00 - Original price $462.00
    Original price
    $462.00
    $462.00 - $462.00
    Current price $462.00
  • Rough Country 94 Series Wheel | One-Piece | Matte Black | 20x10 | 8x6.5 | -18mm

    Rough Country
    Original price $440.00 - Original price $440.00
    Original price
    $440.00
    $440.00 - $440.00
    Current price $440.00

    Give your vehicle an aggressive, new look with Rough Countrys One-Piece Series 94 Wheels. This 8-spoke black and machined wheel offers an incredibl...

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    Original price $440.00 - Original price $440.00
    Original price
    $440.00
    $440.00 - $440.00
    Current price $440.00
  • Rough Country 96 Series Wheel | One-Piece | Gloss Black | 20x10 | 8x6.5 | -19mm

    Rough Country
    Original price $440.00 - Original price $440.00
    Original price
    $440.00
    $440.00 - $440.00
    Current price $440.00

    Set yourself apart from the pack with Rough Countrys One-Piece Series 96 Wheels. This 8-spoke black and machined wheel offers an incredible look th...

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    Original price $440.00 - Original price $440.00
    Original price
    $440.00
    $440.00 - $440.00
    Current price $440.00
  • 9/16 x 18 Lug Nut Set of 32 | Black

    Rough Country
    Original price $59.00 - Original price $59.00
    Original price
    $59.00
    $59.00 - $59.00
    Current price $59.00

    Secure your new wheels with Rough Countrys Bulge Acorn Style Lug Nuts. These cold-forged lug nuts are plated with a beautiful chrome finish for a l...

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    Original price $59.00 - Original price $59.00
    Original price
    $59.00
    $59.00 - $59.00
    Current price $59.00
  • Fleece Performance 01-19 GM 2500/3500 Allison LCT/GM 4T65-E Internal Harness Connector & Seal (7pk)

    Fleece Performance
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $205.00
    $205.00 - $205.00
    Current price $205.00

    Fleece Performance Model FPE-HAR-GM-LCT-SEAL-7PGet rid of oil leaks from the harness connector with our replacement internal wiring harness seal fo...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $205.00
    $205.00 - $205.00
    Current price $205.00
  • Exergy Dodge Cummins 6.7L/Chevrolet Duramax LLY/LBZ/LMM 1800 Bar (26000 PSI) Pressure Relief Valve

    Exergy
    Original price $352.00 - Original price $352.00
    Original price
    $352.00
    $352.00 - $352.00
    Current price $352.00

    Exergy Dodge Cummins 6.7 / Chevy Duramax LLY/LBZ/LMM 1800 Bar (26 000 PSI) Pressure Relief Valve

    Original price $352.00 - Original price $352.00
    Original price
    $352.00
    $352.00 - $352.00
    Current price $352.00
  • Exergy Cummins 6.7L/Duramax LLY/LBZ/LMM 2400 Bar (34800 PSI) Pressure Relief Valve *RACE*

    Exergy
    Original price $440.00 - Original price $440.00
    Original price
    $440.00
    $440.00 - $440.00
    Current price $440.00

    Exergy Model E07 00016Exergy Cummins 6.7L/Duramax LLY/LBZ/LMM 2400 Bar (34800 PSI) Pressure Relief Valve *RACE*

    Original price $440.00 - Original price $440.00
    Original price
    $440.00
    $440.00 - $440.00
    Current price $440.00
  • Exergy Cummins 6.7L/Duramax LLY/LBZ/LMM 2600 Bar (37700 PSI) Pressure Relief Valve

    Exergy
    Original price $469.00 - Original price $469.00
    Original price
    $469.00
    $469.00 - $469.00
    Current price $469.00

    Exergy Cummins 6.7L/Duramax LLY/LBZ/LMM 2600 Bar (37700 PSI) Pressure Relief Valve *RACE*

    Original price $469.00 - Original price $469.00
    Original price
    $469.00
    $469.00 - $469.00
    Current price $469.00
  • Exergy Dodge Cummins 6.7L/Chevrolet Duramax LLY/LBZ/LMM 2000 Bar (29000 PSI) Pressure Relief Valve

    Exergy
    Original price $352.00 - Original price $352.00
    Original price
    $352.00
    $352.00 - $352.00
    Current price $352.00

    Exergy Model E07 00012Exergy Dodge Cummins 6.7L/Chevrolet Duramax LLY/LBZ/LMM 2000 Bar (29000 PSI) Pressure Relief Valve

    Original price $352.00 - Original price $352.00
    Original price
    $352.00
    $352.00 - $352.00
    Current price $352.00
  • Kicker Bar Kit | 6 Inch Lift | Chevy/GMC 2500HD 4WD (01-10)

    Rough Country
    Original price $191.00 - Original price $191.00
    Original price
    $191.00
    $191.00 - $191.00
    Current price $191.00

    Kicker braces add rigidity to the front crossmember assembly and are highly recommended for aggressive off road use.

    Original price $191.00 - Original price $191.00
    Original price
    $191.00
    $191.00 - $191.00
    Current price $191.00

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.

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