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LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

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  • S&S Diesel Motorsport Duramax 10mm CP3 (1,325 mm3 /rev displacement) New. S&S Diesel Motorsport Duramax 10mm CP3 High Speed (1,325 mm3 /rev displacement)- NEW.

    S&S Diesel Motorsport Duramax 10mm CP3 High Speed (1,325 mm3 /rev displacement)- NEW

    S&S
    $3,222.00 - $3,222.00
    $3,222.00
    $3,222.00 - $3,222.00
    $3,222.00

    S&S Model CP3-DMX-10-HSS&S Diesel Motorsport Duramax 10mm CP3 High Speed (1,325 mm3 /rev displacement) | New LBZ-based Optimized for high ...

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    $3,222.00 - $3,222.00
    $3,222.00
    $3,222.00 - $3,222.00
    $3,222.00
  • S&S Diesel Motorsport CP3 Metering Unit / FCA - Cummins 6.7L. S&S Diesel Motorsport CP3 Metering Unit / FCA - Cummins 6.7L.

    S&S Diesel Motorsport CP3 Metering Unit / FCA - Dmax LLY

    S&S
    $255.00 - $255.00
    $255.00
    $255.00 - $255.00
    $255.00

    S&S Model MEUN-LLYS&S Diesel Motorsport CP3 Metering Unit / FCA - Dmax LLY

    $255.00 - $255.00
    $255.00
    $255.00 - $255.00
    $255.00
  • S&S Diesel Motorsport DMAX Injector Return Leak Fitting Clip - LLY/LBZ/LMM. S&S Diesel Motorsport DMAX Injector Return Leak Fitting Clip - LLY/LBZ/LMM.

    S&S Diesel Motorsport DMAX Injector Return Leak Fitting Clip - LLY/LBZ/LMM

    S&S
    $11.00 - $11.00
    $11.00
    $11.00 - $11.00
    $11.00

    S&S Model DMAX-INJ-RTN-CLIPS&S Diesel Motorsport DMAX Injector Return Leak Fitting Clip - LLY/LBZ/LMM *Generic Image

    $11.00 - $11.00
    $11.00
    $11.00 - $11.00
    $11.00
  • S&S Diesel Motorsport Rail Cap - M14x1.5 - LB7/LLY/5.9C/6.7F. S&S Diesel Motorsport Rail Cap - M14x1.5 - LB7/LLY/5.9C/6.7F.

    S&S Diesel Motorsport Rail Cap - M14x1.5 - LB7/LLY/5.9C/6.7F

    S&S
    $44.00 - $44.00
    $44.00
    $44.00 - $44.00
    $44.00

    S&S Model CAP-M14S&S Diesel Motorsport Rail Cap - M14x1.5 - LB7/LLY/5.9C/6.7F

    $44.00 - $44.00
    $44.00
    $44.00 - $44.00
    $44.00
  • S&S Diesel Motorsport LLY Rail - RH Side (w/ sensor). S&S Diesel Motorsport LLY Rail - RH Side (w/ sensor).

    S&S Diesel Motorsport LLY Rail - RH Side (w/ sensor)

    S&S
    $416.00 - $416.00
    $416.00
    $416.00 - $416.00
    $416.00

    S&S Model RAIL-LLY-RHS&S Diesel Motorsport LLY Rail - RH Side (w/ sensor) *Generic Image

    $416.00 - $416.00
    $416.00
    $416.00 - $416.00
    $416.00
  • S&S Diesel Motorsport LLY Rail - LH Side. S&S Diesel Motorsport LLY Rail - LH Side.

    S&S Diesel Motorsport LLY Rail - LH Side

    S&S
    $341.00 - $341.00
    $341.00
    $341.00 - $341.00
    $341.00

    S&S Model RAIL-LLY-LHS&S Diesel Motorsport LLY Rail - LH Side *Generic Image

    $341.00 - $341.00
    $341.00
    $341.00 - $341.00
    $341.00
  • S&S Diesel Motorsport DBV4 Single Stage Relief Valve Innternal Return LLY/LBZ/LMM, 6.7 Style - 2700bar. S&S Diesel Motorsport DBV4 Single Stage Relief Valve Innternal Return LLY/LBZ/LMM, 6.7 Style - 2700bar.

    S&S Diesel Motorsport DBV4 Single Stage Relief Valve Internal Return LLY/LBZ/LMM, 6.7 style - 2400bar

    S&S
    $467.00 - $467.00
    $467.00
    $467.00 - $467.00
    $467.00

    S&S Model PRV-I-2400-1SDBV4 Single Stage Relief Valve Internal Return LLY/LBZ/LMM, 6.7 style - 2400bar Generic Image

    $467.00 - $467.00
    $467.00
    $467.00 - $467.00
    $467.00
  • S&S Diesel Motorsport DBV4 Single Stage Relief Valve Innternal Return LLY/LBZ/LMM, 6.7 Style - 2700bar. S&S Diesel Motorsport DBV4 Single Stage Relief Valve Innternal Return LLY/LBZ/LMM, 6.7 Style - 2700bar.

    S&S Diesel Motorsport LLY Relief Valve (1800 bar)

    S&S
    $277.00 - $277.00
    $277.00
    $277.00 - $277.00
    $277.00

    S&S Model PRV-LLYS&S Diesel Motorsport LLY Relief Valve (1800 bar) See our S&S Fuel System Planner guide for injector and CP3 pump sizi...

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    $277.00 - $277.00
    $277.00
    $277.00 - $277.00
    $277.00
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    S&S Diesel Motorsport Injector Seal Kit (combustion seal + body o-ring) - LLY, LBZ, LMM

    S&S
    $11.00 - $11.00
    $11.00
    $11.00 - $11.00
    $11.00

    S&S Model INJ-SEALS-DMXInjector Seal Kit (combustion seal + body o-ring) - LLY, LBZ, LMM *Generic Image See our S&S Fuel System Planner gui...

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    $11.00 - $11.00
    $11.00
    $11.00 - $11.00
    $11.00
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    S&S Diesel Motorsport LLY Nozzle Set

    S&S
    $1,559.00 - $1,895.00
    $1,559.00
    $1,559.00 - $1,895.00
    $1,559.00

    S&S Diesel Motorsport LLY Nozzle Set - SAC*Generic Image See our S&S Fuel System Planner guide for injector and CP3 pump sizing by horsepo...

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    $1,559.00 - $1,895.00
    $1,559.00
    $1,559.00 - $1,895.00
    $1,559.00
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    Yukon Gear Minor install Kit For GM 83-97 7.2in IFS Diff

    Yukon Gear & Axle
    $60.00 - $60.00
    $60.00
    $60.00 - $60.00
    $60.00

    Yukon Minimum installation kits are a low cost solution for gear changes in newer vehicles where the bearings can be reused. This kit uses all high...

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    $60.00 - $60.00
    $60.00
    $60.00 - $60.00
    $60.00
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    Yukon Gear Pinion install Kit For 98+ GM 7.2in IFS Diff

    Yukon Gear & Axle
    $309.00 - $309.00
    $309.00
    $309.00 - $309.00
    $309.00

    Yukon Pinion installation kits are a terrific solution for gear installation on lower mileage vehicles where the carrier bearings & races can b...

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    $309.00 - $309.00
    $309.00
    $309.00 - $309.00
    $309.00
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    Air Lift Loadlifter 5000 Air Spring Kit

    Air Lift
    $709.00 - $709.00
    $709.00
    $709.00 - $709.00
    $709.00

    Air Lift adjustable air helper springs level your load, and give your truck, van, or SUV a safer, more comfortable ride. Air springs are easy to in...

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    $709.00 - $709.00
    $709.00
    $709.00 - $709.00
    $709.00
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    Yukon Gear Standard Open Carrier Case / GM 9.5in & 9.25in IFS / Loaded

    Yukon Gear & Axle
    $907.00 - $907.00
    $907.00
    $907.00 - $907.00
    $907.00

    Yukon Gear & Axle manufactures a full line of standard open and positraction limited slip carrier cases for a variety of applications. Each uni...

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    $907.00 - $907.00
    $907.00
    $907.00 - $907.00
    $907.00
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    aFe Power BladeRunner Ported Ductile Iron Exhaust Manifold 01-16 GM Diesel Trucks V8-6.6L (td)

    aFe
    $1,009.00 - $1,009.00
    $1,009.00
    $1,009.00 - $1,009.00
    $1,009.00

    Advanced Flow Engineering, Inc. (aFe) produces high flow, high performance air filters & intake systems for the automotive industry. Founded in...

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    $1,009.00 - $1,009.00
    $1,009.00
    $1,009.00 - $1,009.00
    $1,009.00
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    GM Extrude Honed Dragonfly Injection Nozzle For 2004.5-2005 LLY Duramax 24 LPM Industrial Injection

    Industrial Injection
    $173.00
    $173.00 - $173.00
    $173.00
    $168.00
    $168.00 - $168.00
    $168.00

    Industrial Injection Model: 0433171860DFLYThe Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out...

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    $173.00
    $173.00 - $173.00
    $173.00
    $168.00
    $168.00 - $168.00
    $168.00
    Save 3% Save %
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    GM Extrude Honed Injection Nozzle For 2004.5-05 6.6L LLY Duramax 42 LPM Industrial Injection

    Industrial Injection
    $233.00
    $233.00 - $233.00
    $233.00
    $226.00
    $226.00 - $226.00
    $226.00

    Industrial Injection Model: 0433171860-R6The Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out ...

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    $233.00
    $233.00 - $233.00
    $233.00
    $226.00
    $226.00 - $226.00
    $226.00
    Save 3% Save %
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    GM Extrude Honed Injection Nozzle For 2004.5-05 6.6L LLY Duramax 37 LPM Industrial Injection

    Industrial Injection
    $233.00
    $233.00 - $233.00
    $233.00
    $226.00
    $226.00 - $226.00
    $226.00

    Industrial Injection Model: 0433171860-R5The Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out ...

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    $233.00
    $233.00 - $233.00
    $233.00
    $226.00
    $226.00 - $226.00
    $226.00
    Save 3% Save %
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    GM Extrude Honed Nozzle For 2004.5-05 6.6L LLY Duramax 32 LPM Industrial Injection

    Industrial Injection
    $233.00
    $233.00 - $233.00
    $233.00
    $226.00
    $226.00 - $226.00
    $226.00

    Industrial Injection Model: 0433171860-R4The Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out ...

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    $233.00
    $233.00 - $233.00
    $233.00
    $226.00
    $226.00 - $226.00
    $226.00
    Save 3% Save %
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    GM Extrude Honed Injection Nozzle For 2004.5-05 6.6L LLY Duramax 29 LPM Industrial Injection

    Industrial Injection
    $173.00
    $173.00 - $173.00
    $173.00
    $168.00
    $168.00 - $168.00
    $168.00

    Industrial Injection Model: 0433171860-R3The Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out ...

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    $173.00
    $173.00 - $173.00
    $173.00
    $168.00
    $168.00 - $168.00
    $168.00
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    GM Extrude Honed Injection Nozzle For 2004.5-05 6.6L LLY Duramax 27 LPM Industrial Injection

    Industrial Injection
    $173.00
    $173.00 - $173.00
    $173.00
    $168.00
    $168.00 - $168.00
    $168.00

    Industrial Injection Model: 0433171860-R2The Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out ...

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    $173.00
    $173.00 - $173.00
    $173.00
    $168.00
    $168.00 - $168.00
    $168.00
    Save 3% Save %
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    GM Extrude Honed Injection Nozzle For 2004.5-05 6.6L LLY Duramax 25 LPM Industrial Injection

    Industrial Injection
    $173.00
    $173.00 - $173.00
    $173.00
    $168.00
    $168.00 - $168.00
    $168.00

    Industrial Injection Model: 0433171860-R1The Industrial Injection Performance Extrude Honed Nozzles are the pinnacle of what you should expect out ...

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    $173.00
    $173.00 - $173.00
    $173.00
    $168.00
    $168.00 - $168.00
    $168.00
    Save 3% Save %
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    BD Diesel Exhaust Manifold Kit - 02-13 Chevy Silverado 1500 & GMC Sierra 1500 V8

    BD Diesel
    $802.00 - $802.00
    $802.00
    $870.00
    $870.00 - $870.00
    $870.00

    Experience unparalleled performance and durability with our enhanced GMC/Chevrolet truck exhaust manifolds, specifically designed for LS engines. O...

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    $802.00 - $802.00
    $802.00
    $870.00
    $870.00 - $870.00
    $870.00
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    Bilstein 01-03 Chevy Silverado 1500 HD 5160 Shock Absorber

    Bilstein
    $424.00 - $424.00
    $424.00
    $424.00 - $424.00
    $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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    $424.00 - $424.00
    $424.00
    $424.00 - $424.00
    $424.00

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