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LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

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  • GM Race Camshaft For 01-16 Duramax Alternate Firing Billet Stage 2 Industrial Injection

    Industrial Injection
    Original price $999.95
    Original price $999.95 - Original price $999.95
    Original price $999.95
    Current price $969.95
    $969.95 - $969.95
    Current price $969.95

    Industrial Injection Model: PDM-DMXHPIndustrial Injection 6.6L Duramax Stage 2 Race Performance Camshaft Industrial Injection always recommends che...

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    Original price $999.95
    Original price $999.95 - Original price $999.95
    Original price $999.95
    Current price $969.95
    $969.95 - $969.95
    Current price $969.95
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  • GM Race Pistons For 01-16 Duramax .040 Over Industrial Injection

    Industrial Injection
    Original price $3,199.14 - Original price $3,199.14
    Original price
    $3,199.14
    $3,199.14 - $3,199.14
    Current price $3,199.14

    Industrial Injection Model: PDM-362.040PDM's Ceramic Piston Skirt Coating, is designed to be used, on any rigid or semi rigid surface experiencing ...

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    Original price $3,199.14 - Original price $3,199.14
    Original price
    $3,199.14
    $3,199.14 - $3,199.14
    Current price $3,199.14
  • GM Race Pistons For 01-16 Duramax Industrial Injection

    Industrial Injection
    Original price $3,199.14 - Original price $3,199.14
    Original price
    $3,199.14
    $3,199.14 - $3,199.14
    Current price $3,199.14

    Industrial Injection Model: PDM-362STDPDM's Ceramic Piston Skirt Coating, is designed to be used, on any rigid or semi rigid surface experiencing s...

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    Original price $3,199.14 - Original price $3,199.14
    Original price
    $3,199.14
    $3,199.14 - $3,199.14
    Current price $3,199.14
  • GM Race Pistons For 01-16 Duramax .020 Over Industrial Injection

    Industrial Injection
    Original price $4,262.95
    Original price $4,262.95 - Original price $4,262.95
    Original price $4,262.95
    Current price $4,135.06
    $4,135.06 - $4,135.06
    Current price $4,135.06

    Industrial Injection Model: PDM-362.020PDM's Ceramic Piston Skirt Coating, is designed to be used, on any rigid or semi rigid surface experiencing ...

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    Original price $4,262.95
    Original price $4,262.95 - Original price $4,262.95
    Original price $4,262.95
    Current price $4,135.06
    $4,135.06 - $4,135.06
    Current price $4,135.06
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  • GM Race Cast Pistons For 01-16 Duramax .040 Oversize Cut Coated Tops and Skirts De-Lipped Industrial Injection

    Industrial Injection
    Original price $2,626.16 - Original price $2,626.16
    Original price
    $2,626.16
    $2,626.16 - $2,626.16
    Current price $2,626.16

    Industrial Injection Model: PDM-298.040Duramax .040 Over Fly Cut Race cast Pistons Set Coated Tops and Skirts Delipped Set. PDM's Ceramic Piston Sk...

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    Original price $2,626.16 - Original price $2,626.16
    Original price
    $2,626.16
    $2,626.16 - $2,626.16
    Current price $2,626.16
  • GM Race Cast Pistons For 01-16 Duramax .020 Oversize Cut Coated Tops and Skirts De-Lipped Industrial Injection

    Industrial Injection
    Original price $3,337.95
    Original price $3,337.95 - Original price $3,337.95
    Original price $3,337.95
    Current price $3,237.81
    $3,237.81 - $3,237.81
    Current price $3,237.81

    Industrial Injection Model: PDM-298.020Duramax .020 Oversize Race cast Pistons Set Coated Tops and Skirts Delipped Set. PDM's Ceramic Piston Skirt ...

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    Original price $3,337.95
    Original price $3,337.95 - Original price $3,337.95
    Original price $3,337.95
    Current price $3,237.81
    $3,237.81 - $3,237.81
    Current price $3,237.81
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  • GM Remanufactured Heads For 2004.5-2005 LLY 6.6L Duramax Industrial Injection

    Industrial Injection
    Original price $1,749.95
    Original price $1,749.95 - Original price $1,749.95
    Original price $1,749.95
    Current price $1,697.45
    $1,697.45 - $1,697.45
    Current price $1,697.45

    Industrial Injection Model: PDM-LLYSHThe Industrial Injection LLY Duramax Stock Remanufactured Heads are designed to be a factory replacement. Comp...

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    Original price $1,749.95
    Original price $1,749.95 - Original price $1,749.95
    Original price $1,749.95
    Current price $1,697.45
    $1,697.45 - $1,697.45
    Current price $1,697.45
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  • GM Common Rail Gorilla Girdle For 01-10 6.6L LB7 LLY LBZ LLM Duramax 14mm Industrial Injection

    Industrial Injection
    Original price $1,631.95
    Original price $1,631.95 - Original price $1,631.95
    Original price $1,631.95
    Current price $1,582.99
    $1,582.99 - $1,582.99
    Current price $1,582.99

    Industrial Injection Model: PDM-0603514mm Duramax Gorilla Girdle Kit (LB7,LLY,LBZ,LMM)The thick Gorilla Girdle is the strongest girdle on the marke...

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    Original price $1,631.95
    Original price $1,631.95 - Original price $1,631.95
    Original price $1,631.95
    Current price $1,582.99
    $1,582.99 - $1,582.99
    Current price $1,582.99
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  • Fleece Performance 01-13 GM Duramax 6.6L Duramax Turbo Thermostat Delete Plug

    Fleece Performance
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $37.95
    $37.95 - $37.95
    Current price $37.95

    Fleece Performance Model FPE-TURBO-THERMThe Fleece Performance Duramax Turbo Thermostat Delete Plug is designed to eliminate the stock coolant feed...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $37.95
    $37.95 - $37.95
    Current price $37.95
  • Firestone Level Command Single Mechanical Height Sensor Kit (WR17602186)

    Firestone
    Original price $305.24
    Original price $305.24 - Original price $305.24
    Original price $305.24
    Current price $232.24
    $232.24 - $232.24
    Current price $232.24

    Firestone manufactures and provides air springs for all vehicles. We began developing air suspension for passenger cars and trucks more than 70 yea...

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    Original price $305.24
    Original price $305.24 - Original price $305.24
    Original price $305.24
    Current price $232.24
    $232.24 - $232.24
    Current price $232.24
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  • Firestone Level Command Dual Mechanical Height Sensor Kit (WR17602017)

    Firestone
    Original price $579.27
    Original price $579.27 - Original price $579.27
    Original price $579.27
    Current price $440.74
    $440.74 - $440.74
    Current price $440.74

    These Firestone dual automatic air command system kits inflate both air helper springs individually. Gain total control over your air springs by pi...

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    Original price $579.27
    Original price $579.27 - Original price $579.27
    Original price $579.27
    Current price $440.74
    $440.74 - $440.74
    Current price $440.74
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  • BD Diesel Remote Fuel Filter Replacement Cartridge - 1050060 Kit

    BD Diesel
    Original price $38.75 - Original price $38.75
    Original price $38.75
    $41.95
    $41.95 - $41.95
    Current price $41.95

    The OEM fuel filter was designed to provide adequate flow and filtration at the stock horsepower level, but simply does not have enough surface are...

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    Original price $38.75 - Original price $38.75
    Original price $38.75
    $41.95
    $41.95 - $41.95
    Current price $41.95
  • Wehrli 2004.5-05 Chevrolet LLY 6.6L Duramax Passenger Side 3in Intercooler Pipe

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $295.85
    $295.85 - $295.85
    Current price $295.85

    Wehrli Model WCF100355 The 3" High Flow Passenger Side Intercooler Pipe for 2004.5-2005 LLY Duramax replaces the 2.5" factory aluminum pipe with a ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $295.85
    $295.85 - $295.85
    Current price $295.85
  • Wehrli 04.5-05 LLY Duramax 4in Intake Kit with Air Box Stage 2

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $800.25
    $800.25 - $800.25
    Current price $800.25

    Wehrli Model WCF100301 WCFab 2004.5-2005 GM LLY 6.6L Duramax Stage 2 Intake Kit with Air Box. This high flow, fabricated aluminum intake pipe and a...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $800.25
    $800.25 - $800.25
    Current price $800.25
  • Wehrli 2004.5-2005 LLY Duramax 4in Intake Kit with Air Box

    Wehrli
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $528.65
    $528.65 - $528.65
    Current price $528.65

    Wehrli Model WCF100191 WCFab 4" Intake Kit with Air Box for 2004.5-2005 LLY 6.6L Duramax equipped Chevrolet Silverado or GMC Sierra 2500 / 3500 HD ...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $528.65
    $528.65 - $528.65
    Current price $528.65
  • Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY Turbo Vane Position Sensor Adapter Harness

    Fleece Performance
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $46.99
    $46.99 - $46.99
    Current price $46.99

    Fleece Performance Model FPE-HAR-DMAX-VPS-ADPTOur Fleece Performance adapter harness allows the 2004.5-2005 LLY Duramax to run the updated turbo va...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $46.99
    $46.99 - $46.99
    Current price $46.99
  • Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 4 & 5)

    Fleece Performance
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $69.99
    $69.99 - $69.99
    Current price $69.99

    Fleece Performance Model FPE-FL-LLY-45LLY Duramax High Pressure Injection Line (Number 4 and Number 5). Replacement high pressure fuel lines from F...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $69.99
    $69.99 - $69.99
    Current price $69.99
  • Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 3 & 6)

    Fleece Performance
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $69.99
    $69.99 - $69.99
    Current price $69.99

    Fleece Performance Model FPE-FL-LLY-36LLY Duramax High Pressure Injection Line (Number 3 and Number 6). Replacement high pressure fuel lines from F...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $69.99
    $69.99 - $69.99
    Current price $69.99
  • Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 2 & 7)

    Fleece Performance
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $69.99
    $69.99 - $69.99
    Current price $69.99

    Fleece Performance Model FPE-FL-LLY-27LLY Duramax High Pressure Injection Line (Number 2 and Number 7). Replacement high pressure fuel lines from F...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $69.99
    $69.99 - $69.99
    Current price $69.99
  • Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 1 & 8)

    Fleece Performance
    Original price $0.00 - Original price $0.00
    Original price $0.00
    $69.99
    $69.99 - $69.99
    Current price $69.99

    Fleece Performance Model FPE-FL-LLY-18LLY Duramax High Pressure Injection Line (Number 1 and Number 8). Replacement high pressure fuel lines from F...

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    Original price $0.00 - Original price $0.00
    Original price $0.00
    $69.99
    $69.99 - $69.99
    Current price $69.99
  • GM Remanufactured Modified 42 CP3 Injection Pump For 2004.5-2005 6.6L LLY II Duramax Industrial Injection

    Industrial Injection
    Original price $1,140.95
    Original price $1,140.95 - Original price $1,140.95
    Original price $1,140.95
    Current price $1,106.72
    $1,106.72 - $1,106.72
    Current price $1,106.72

    Industrial Injection Model: 0986437308SHOSEIndustrial Injection Reman pumps are a little different than others in the fact that we only use brand n...

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    Original price $1,140.95
    Original price $1,140.95 - Original price $1,140.95
    Original price $1,140.95
    Current price $1,106.72
    $1,106.72 - $1,106.72
    Current price $1,106.72
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  • Industrial Injection Garrett LLY Duramax Vane Position Sensor Adapter

    Industrial Injection
    Original price $76.02 - Original price $76.02
    Original price
    $76.02
    $76.02 - $76.02
    Current price $76.02

    Industrial Injection Model: 771864-0001Garrett vane position adapter allows the Garrett 848212-5001S turbocharger to be installed on your 2004.5-20...

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    Original price $76.02 - Original price $76.02
    Original price
    $76.02
    $76.02 - $76.02
    Current price $76.02
  • GM Remanufactured Modified 42 CP3 Injection Pump For 2004.5-2005 6.6L LLY Duramax Industrial Injection

    Industrial Injection
    Original price $1,399.95
    Original price $1,399.95 - Original price $1,399.95
    Original price $1,399.95
    Current price $1,357.95
    $1,357.95 - $1,357.95
    Current price $1,357.95

    Industrial Injection Model: 0986437308SHOBosch OEM reman CP3s are the pinnacle of what you should expect out of a CP3 injection pump. Each injectio...

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    Original price $1,399.95
    Original price $1,399.95 - Original price $1,399.95
    Original price $1,399.95
    Current price $1,357.95
    $1,357.95 - $1,357.95
    Current price $1,357.95
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  • GM Remanufactured Dragon Fire 85 CP3 Injection Pump For 2004.5-2005 6.6L LLY II Duramax Industrial Injection

    Industrial Injection
    Original price $1,499.95
    Original price $1,499.95 - Original price $1,499.95
    Original price $1,499.95
    Current price $1,454.95
    $1,454.95 - $1,454.95
    Current price $1,454.95

    Industrial Injection Model: 0986437308DFSEIndustrial Injection Reman pumps are a little different than others in the fact that we only use brand ne...

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    Original price $1,499.95
    Original price $1,499.95 - Original price $1,499.95
    Original price $1,499.95
    Current price $1,454.95
    $1,454.95 - $1,454.95
    Current price $1,454.95
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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.