Skip to content
Free Shipping on most orders over $150.00                    
Free Shipping on most orders over $150.00                    

LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

Filters

  • responsive-image responsive-image Save 3% Save %

    GM Remanufactured Stock Heads For 01-04 LB7 Duramax Industrial Injection

    Industrial Injection
    $2,563.00
    $2,563.00 - $2,563.00
    $2,563.00
    $2,486.00
    $2,486.00 - $2,486.00
    $2,486.00

    Industrial Injection Model: PDM-LB7SHThe Industrial Injection LB7 Duramax Stock Remanufactured Heads are designed to be a factory replacement. Comp...

    View full details
    $2,563.00
    $2,563.00 - $2,563.00
    $2,563.00
    $2,486.00
    $2,486.00 - $2,486.00
    $2,486.00
    Save 3% Save %
    Select Options
  • responsive-image responsive-image Save 3% Save %

    GM Remanufactured Stock Heads For 01-04 LB7 Duramax With Torque Lock Caps Industrial Injection

    Industrial Injection
    $3,222.00
    $3,222.00 - $3,222.00
    $3,222.00
    $3,125.00
    $3,125.00 - $3,125.00
    $3,125.00

    Industrial Injection Model: PDM-LB7SH-TLThe Industrial Injection LB7 Duramax Stock Remanufactured Heads with Torque Lock Cups are designed to be an...

    View full details
    $3,222.00
    $3,222.00 - $3,222.00
    $3,222.00
    $3,125.00
    $3,125.00 - $3,125.00
    $3,125.00
    Save 3% Save %
    Select Options
  • responsive-image responsive-image Save 3% Save %

    GM Race Cast Pistons For 01-16 Duramax Cut Coated Tops and Skirts De-Lipped Industrial Injection

    Industrial Injection
    $5,805.00
    $5,805.00 - $5,805.00
    $5,805.00
    $5,631.00
    $5,631.00 - $5,631.00
    $5,631.00

    Industrial Injection Model: PDM-298STDDuramax Standard Size Race Fly Cut cast Pistons Set Coated Tops and Skirts Delipped Set. PDM's Ceramic Piston...

    View full details
    $5,805.00
    $5,805.00 - $5,805.00
    $5,805.00
    $5,631.00
    $5,631.00 - $5,631.00
    $5,631.00
    Save 3% Save %
  • responsive-image responsive-image Save 3% Save %

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

    Industrial Injection
    $1,465.00
    $1,465.00 - $1,465.00
    $1,465.00
    $1,421.00
    $1,421.00 - $1,421.00
    $1,421.00

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

    View full details
    $1,465.00
    $1,465.00 - $1,465.00
    $1,465.00
    $1,421.00
    $1,421.00 - $1,421.00
    $1,421.00
    Save 3% Save %
    Select Options
  • responsive-image responsive-image

    GM Race Pistons For 01-16 Duramax .040 Over Industrial Injection

    Industrial Injection
    $4,685.00 - $4,685.00
    $4,685.00
    $4,685.00 - $4,685.00
    $4,685.00

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

    View full details
    $4,685.00 - $4,685.00
    $4,685.00
    $4,685.00 - $4,685.00
    $4,685.00
  • responsive-image responsive-image

    GM Race Pistons For 01-16 Duramax Industrial Injection

    Industrial Injection
    $4,685.00 - $4,685.00
    $4,685.00
    $4,685.00 - $4,685.00
    $4,685.00

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

    View full details
    $4,685.00 - $4,685.00
    $4,685.00
    $4,685.00 - $4,685.00
    $4,685.00
  • responsive-image responsive-image Save 3% Save %

    GM Race Pistons For 01-16 Duramax .020 Over Industrial Injection

    Industrial Injection
    $6,243.00
    $6,243.00 - $6,243.00
    $6,243.00
    $6,056.00
    $6,056.00 - $6,056.00
    $6,056.00

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

    View full details
    $6,243.00
    $6,243.00 - $6,243.00
    $6,243.00
    $6,056.00
    $6,056.00 - $6,056.00
    $6,056.00
    Save 3% Save %
  • responsive-image responsive-image

    GM Race Cast Pistons For 01-16 Duramax .040 Oversize Cut Coated Tops and Skirts De-Lipped Industrial Injection

    Industrial Injection
    $3,846.00 - $3,846.00
    $3,846.00
    $3,846.00 - $3,846.00
    $3,846.00

    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...

    View full details
    $3,846.00 - $3,846.00
    $3,846.00
    $3,846.00 - $3,846.00
    $3,846.00
  • responsive-image responsive-image Save 3% Save %

    GM Race Cast Pistons For 01-16 Duramax .020 Oversize Cut Coated Tops and Skirts De-Lipped Industrial Injection

    Industrial Injection
    $4,889.00
    $4,889.00 - $4,889.00
    $4,889.00
    $4,742.00
    $4,742.00 - $4,742.00
    $4,742.00

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

    View full details
    $4,889.00
    $4,889.00 - $4,889.00
    $4,889.00
    $4,742.00
    $4,742.00 - $4,742.00
    $4,742.00
    Save 3% Save %
  • responsive-image responsive-image Save 3% Save %

    GM Remanufactured Heads For 2004.5-2005 LLY 6.6L Duramax Industrial Injection

    Industrial Injection
    $2,563.00
    $2,563.00 - $2,563.00
    $2,563.00
    $2,486.00
    $2,486.00 - $2,486.00
    $2,486.00

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

    View full details
    $2,563.00
    $2,563.00 - $2,563.00
    $2,563.00
    $2,486.00
    $2,486.00 - $2,486.00
    $2,486.00
    Save 3% Save %
    Select Options
  • responsive-image responsive-image Save 3% Save %

    GM Common Rail Gorilla Girdle For 01-10 6.6L LB7 LLY LBZ LLM Duramax 14mm Industrial Injection

    Industrial Injection
    $2,390.00
    $2,390.00 - $2,390.00
    $2,390.00
    $2,319.00
    $2,319.00 - $2,319.00
    $2,319.00

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

    View full details
    $2,390.00
    $2,390.00 - $2,390.00
    $2,390.00
    $2,319.00
    $2,319.00 - $2,319.00
    $2,319.00
    Save 3% Save %
    Select Options
  • responsive-image responsive-image

    Fleece Performance 01-13 GM Duramax 6.6L Duramax Turbo Thermostat Delete Plug

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $56.00
    $56.00 - $56.00
    $56.00

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

    View full details
    $0.00 - $0.00
    $0.00
    $56.00
    $56.00 - $56.00
    $56.00
  • responsive-image responsive-image Save 24% Save %

    Firestone Level Command Single Mechanical Height Sensor Kit (WR17602186)

    Firestone
    $447.00
    $447.00 - $447.00
    $447.00
    $341.00
    $341.00 - $341.00
    $341.00

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

    View full details
    $447.00
    $447.00 - $447.00
    $447.00
    $341.00
    $341.00 - $341.00
    $341.00
    Save 24% Save %
  • responsive-image responsive-image

    BD Diesel Turbo Turnbuckle - 5/16NF Rod w/Pin 2001-2004 LB7 w/Aftermarket Turbo or Wastegate

    BD Diesel
    $83.00 - $83.00
    $83.00
    $90.00
    $90.00 - $90.00
    $90.00

    Cut from stainless steel to prevent corrosion and the swivel design avoids oil return drains and rubbing. The Turbo Waste Gate Turnbuckle is now at...

    View full details
    $83.00 - $83.00
    $83.00
    $90.00
    $90.00 - $90.00
    $90.00
  • responsive-image responsive-image Save 24% Save %

    Firestone Level Command Dual Mechanical Height Sensor Kit (WR17602017)

    Firestone
    $849.00
    $849.00 - $849.00
    $849.00
    $646.00
    $646.00 - $646.00
    $646.00

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

    View full details
    $849.00
    $849.00 - $849.00
    $849.00
    $646.00
    $646.00 - $646.00
    $646.00
    Save 24% Save %
  • responsive-image responsive-image

    BD Diesel Remote Fuel Filter Replacement Cartridge - 1050060 Kit

    BD Diesel
    $57.00 - $57.00
    $57.00
    $62.00
    $62.00 - $62.00
    $62.00

    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...

    View full details
    $57.00 - $57.00
    $57.00
    $62.00
    $62.00 - $62.00
    $62.00
  • responsive-image responsive-image

    Wehrli 2004.5-05 Chevrolet LLY 6.6L Duramax Passenger Side 3in Intercooler Pipe

    Wehrli
    $0.00 - $0.00
    $0.00
    $434.00
    $434.00 - $434.00
    $434.00

    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 ...

    View full details
    $0.00 - $0.00
    $0.00
    $434.00
    $434.00 - $434.00
    $434.00
    Select Options
  • responsive-image responsive-image

    Wehrli 04.5-05 LLY Duramax 4in Intake Kit with Air Box Stage 2

    Wehrli
    $0.00 - $0.00
    $0.00
    $1,172.00
    $1,172.00 - $1,172.00
    $1,172.00

    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...

    View full details
    $0.00 - $0.00
    $0.00
    $1,172.00
    $1,172.00 - $1,172.00
    $1,172.00
    Select Options
  • responsive-image responsive-image

    Wehrli 2004.5-2005 LLY Duramax 4in Intake Kit with Air Box

    Wehrli
    $0.00 - $0.00
    $0.00
    $775.00
    $775.00 - $775.00
    $775.00

    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 ...

    View full details
    $0.00 - $0.00
    $0.00
    $775.00
    $775.00 - $775.00
    $775.00
    Select Options
  • responsive-image responsive-image

    Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY Turbo Vane Position Sensor Adapter Harness

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $69.00
    $69.00 - $69.00
    $69.00

    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...

    View full details
    $0.00 - $0.00
    $0.00
    $69.00
    $69.00 - $69.00
    $69.00
  • responsive-image responsive-image

    Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 4 & 5)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $103.00
    $103.00 - $103.00
    $103.00

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

    View full details
    $0.00 - $0.00
    $0.00
    $103.00
    $103.00 - $103.00
    $103.00
  • responsive-image responsive-image

    Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 3 & 6)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $103.00
    $103.00 - $103.00
    $103.00

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

    View full details
    $0.00 - $0.00
    $0.00
    $103.00
    $103.00 - $103.00
    $103.00
  • responsive-image responsive-image

    Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 2 & 7)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $103.00
    $103.00 - $103.00
    $103.00

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

    View full details
    $0.00 - $0.00
    $0.00
    $103.00
    $103.00 - $103.00
    $103.00
  • responsive-image responsive-image

    Fleece Performance 04.5-05 GM 2500/3500 Duramax LLY High Pressure Injection Line (No. 1 & 8)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $103.00
    $103.00 - $103.00
    $103.00

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

    View full details
    $0.00 - $0.00
    $0.00
    $103.00
    $103.00 - $103.00
    $103.00

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.

Powerhouse Diesel