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LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

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    USA Standard Bearing Kit For 98-13 GM 9.5in

    Yukon Gear & Axle
    $380.89 - $380.89
    $380.89
    $380.89 - $380.89
    $380.89

    USA Standard Gear Bearing Installation Kits are perfect for shops and builders who have shims on the shelf and are looking to save cost over a Mast...

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    $380.89 - $380.89
    $380.89
    $380.89 - $380.89
    $380.89
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    USA Standard Bearing Kit For 98+ 10.5in GM 14 Bolt Truck

    Yukon Gear & Axle
    $347.45 - $347.45
    $347.45
    $347.45 - $347.45
    $347.45

    USA Standard Gear Bearing Installation Kits are perfect for shops and builders who have shims on the shelf and are looking to save cost over a Mast...

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    $347.45 - $347.45
    $347.45
    $347.45 - $347.45
    $347.45
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    USA Standard Bearing Kit For 10 & Down GM 9.25in IFS Front

    Yukon Gear & Axle
    $393.10 - $393.10
    $393.10
    $393.10 - $393.10
    $393.10

    USA Standard Gear Bearing Installation Kits are perfect for shops and builders who have shims on the shelf and are looking to save cost over a Mast...

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    $393.10 - $393.10
    $393.10
    $393.10 - $393.10
    $393.10
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    USA Standard Bearing Kit For 10 & Down GM & Chrysler 11.5in Rear

    Yukon Gear & Axle
    $375.89 - $375.89
    $375.89
    $375.89 - $375.89
    $375.89

    USA Standard Gear Bearing Installation Kits are perfect for shops and builders who have shims on the shelf and are looking to save cost over a Mast...

    View full details
    $375.89 - $375.89
    $375.89
    $375.89 - $375.89
    $375.89
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    BD Diesel Rocker Switch Kit Exhaust Brake - 3/4in Manual Lever

    BD Diesel
    $139.63 - $139.63
    $139.63
    $147.95
    $147.95 - $147.95
    $147.95

    Optional power switch for the Exhaust Brake that mounts on the manual transmission shift lever; For that old school trucker feel this switch is ide...

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    $139.63 - $139.63
    $139.63
    $147.95
    $147.95 - $147.95
    $147.95
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    BD Diesel Rocker Switch Kit Exhaust Brake - 5/8in Manual Lever

    BD Diesel
    $108.21 - $108.21
    $108.21
    $123.95
    $123.95 - $123.95
    $123.95

    Optional power switch for the Exhaust Brake that mounts on the manual transmission shift lever; For that old school trucker feel this switch is ide...

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    $108.21 - $108.21
    $108.21
    $123.95
    $123.95 - $123.95
    $123.95
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    BD Diesel Push/Pull Switch Kit Exhaust Brake - 5/8in Manual Lever

    BD Diesel
    $75.03 - $75.03
    $75.03
    $85.95
    $85.95 - $85.95
    $85.95

    Optional power switch for the Exhaust Brake that mounts on the manual transmission shift lever; For that old school trucker feel this switch is ide...

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    $75.03 - $75.03
    $75.03
    $85.95
    $85.95 - $85.95
    $85.95
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    BD Diesel Push/Pull Switch Kit Exhaust Brake - 3/4in Manual Lever

    BD Diesel
    $81.43 - $81.43
    $81.43
    $83.95
    $83.95 - $83.95
    $83.95

    Optional power switch for the Exhaust Brake that mounts on the manual transmission shift lever; For that old school trucker feel this switch is ide...

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    $81.43 - $81.43
    $81.43
    $83.95
    $83.95 - $83.95
    $83.95
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    BD Diesel Brake - 2004.5-2010 Duramax 6.6L LLY/LBZ/LMM w/Stk Exh

    BD Diesel
    $1,591.72 - $1,591.72
    $1,591.72
    $1,691.95
    $1,691.95 - $1,691.95
    $1,691.95

    Descending grades with trailers can be hazardous and tricky situations, resulting in over heated service and trailer brakes, that leads to brake fa...

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    $1,591.72 - $1,591.72
    $1,591.72
    $1,691.95
    $1,691.95 - $1,691.95
    $1,691.95
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    BD Diesel Brake - 2004.5-2010 Duramax 6.6L LLY/LBZ/LMM w/4in Exh

    BD Diesel
    $1,591.72 - $1,591.72
    $1,591.72
    $1,691.95
    $1,691.95 - $1,691.95
    $1,691.95

    Descending grades with trailers can be hazardous and tricky situations, resulting in over heated service and trailer brakes, that leads to brake fa...

    View full details
    $1,591.72 - $1,591.72
    $1,591.72
    $1,691.95
    $1,691.95 - $1,691.95
    $1,691.95
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    Mishimoto 01-04 Chevrolet/GMC 6.6L Duramax Turbo Blanket

    Mishimoto
    $223.00
    $223.00 - $223.00
    $223.00
    $202.95
    $202.95 - $202.95
    $202.95

    Help reduce the heat in your 2001-2004 Chevrolet/GMC 6.6L Duramax engine bay with this Mishimoto turbo blanket. One of the main drawbacks to a turb...

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    $223.00
    $223.00 - $223.00
    $223.00
    $202.95
    $202.95 - $202.95
    $202.95
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    Mishimoto 2004.5-2016 Chevrolet/GMC 6.6L Duramax Turbo Blanket

    Mishimoto
    $213.00
    $213.00 - $213.00
    $213.00
    $193.95
    $193.95 - $193.95
    $193.95

    Help reduce the heat in your 2004.5-2016 Chevrolet/GMC 6.6L LLY, LBZ, LMM, and LML Duramax engine bay with this Mishimoto turbo blanket. One of the...

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    $213.00
    $213.00 - $213.00
    $213.00
    $193.95
    $193.95 - $193.95
    $193.95
    Save 9% Save %
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    BD Diesel T3 Mount Turbo Pedestal For AirWerks S300 T3 Mount Turbos 01-07 Duramax

    BD Diesel
    $276.40 - $276.40
    $276.40
    $300.95
    $300.95 - $300.95
    $300.95

    Looking to install a S300 turbo on your Duramax? This adapter pedestal allows the install of a S300 T3 mount turbo. For AirWerks S300 T3 Mount Turb...

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    $276.40 - $276.40
    $276.40
    $300.95
    $300.95 - $300.95
    $300.95
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    BD Diesel Screamer Turbo 2004.5-2010 LLY LBZ LMM Duramax 6.6L

    BD Diesel
    $2,096.37 - $2,096.37
    $2,096.37
    $2,274.95
    $2,274.95 - $2,274.95
    $2,274.95

    The drop-in, stock-appearing Screamer turbo for the 2004.5-2016 Duramax utilizes modern turbo technology that delivers increased airflow without co...

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    $2,096.37 - $2,096.37
    $2,096.37
    $2,274.95
    $2,274.95 - $2,274.95
    $2,274.95
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    aFe MACHForce XP Exhausts Cat-Back SS-409 EXH CB GM Diesel Trucks 01-05 V8-6.6L (td) LB7/LLY

    aFe
    $1,010.00
    $1,010.00 - $1,010.00
    $1,010.00
    $808.00
    $808.00 - $808.00
    $808.00

    The new MACH Force XP exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4 in. 409 sta...

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    $1,010.00
    $1,010.00 - $1,010.00
    $1,010.00
    $808.00
    $808.00 - $808.00
    $808.00
    Save 20% Save %
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    aFe MACH Force-Xp Turbo Down-Pipe 3" 409 Stainless 4-10 V8-6.6L LMM/LBZ/LLY Duramax

    aFe
    $571.25
    $571.25 - $571.25
    $571.25
    $457.00
    $457.00 - $457.00
    $457.00

    If you are looking for a highly engineered down pipe look no further than the aFe Power Mach Force XP Down Pipe. Down pipe is 100 percent TIG welde...

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    $571.25
    $571.25 - $571.25
    $571.25
    $457.00
    $457.00 - $457.00
    $457.00
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    aFe LARGE Bore HD Exhausts Cat-Back SS-409 EXH CB GM Diesel Trucks 01-05 V8-6.6L (td) LB7/LLY

    aFe
    $825.00
    $825.00 - $825.00
    $825.00
    $660.00
    $660.00 - $660.00
    $660.00

    The Large Bore HD Performance Cat-Back exhaust features 4" 409 stainless steel tubing with smooth curves and increased size to help remove restrict...

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    $825.00
    $825.00 - $825.00
    $825.00
    $660.00
    $660.00 - $660.00
    $660.00
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    aFe ATLAS Turbo Down-Pipe 3" Steel 2001-2004 6.6L Duramax Diesel

    aFe
    $350.00
    $350.00 - $350.00
    $350.00
    $280.00
    $280.00 - $280.00
    $280.00

    Optimize your 01-04 LB7 GM diesel's airflow to improve throttle response with aFe's ATLAS 3" turbo down-pipe.Constructed from 3" mandrel bent steel...

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    $350.00
    $350.00 - $350.00
    $350.00
    $280.00
    $280.00 - $280.00
    $280.00
    Save 20% Save %
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    aFe Bladerunner Manifolds Turbo Inlet MAN Turbo Inlet GM Diesel Trucks 04.5-05 V8-6.6L (td)

    aFe
    $557.50
    $557.50 - $557.50
    $557.50
    $446.00
    $446.00 - $446.00
    $446.00

    The aFe Bladerunner Turbo Inlet Manifold increases performance to your Duramax by 23hp and 57lbs x ft. torque while increasing air flow 73-percent...

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    $557.50
    $557.50 - $557.50
    $557.50
    $446.00
    $446.00 - $446.00
    $446.00
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    SCT Performance Livewire Vision Performance Monitor (for 1996+ Ford Vehicles)

    SCT Performance
    $280.00 - $280.00
    $280.00
    $280.00 - $280.00
    $280.00

    The SCT Livewire Vision Performance Monitor puts your vehicle's vital stats on display. This easy-to-use monitoring device includes the latest data...

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    $280.00 - $280.00
    $280.00
    $280.00 - $280.00
    $280.00
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    BD Diesel High Idle Control W/ Cruise Control 2004.5-2006 LLY Duramax 6.6L - Automatic

    BD Diesel
    $39.24 - $39.24
    $39.24
    $44.95
    $44.95 - $44.95
    $44.95

    BD Diesel High Idle Control W/ Cruise Control 2004.5-2006 LLY Duramax 6.6L - Automatic For when days are short and the nights are cold, you want yo...

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    $39.24 - $39.24
    $39.24
    $44.95
    $44.95 - $44.95
    $44.95
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    Banks Power 01-15 Chevy/GMC 6.6L Duramax 6.6L AutoMind 2 Flash - Programming Module

    Banks Power
    $487.78
    $487.78 - $487.78
    $487.78
    $439.00
    $439.00 - $439.00
    $439.00

    The Banks AutoMind programmer comes ready to run with pre-loaded power right out of the box and right for the job at hand! Its calibrations were de...

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    $487.78
    $487.78 - $487.78
    $487.78
    $439.00
    $439.00 - $439.00
    $439.00
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    Air Lift Load Controller Ii - Single Gauge w/ Lps 5 PSI Min.

    Air Lift
    $336.99 - $336.99
    $336.99
    $336.99 - $336.99
    $336.99

    Offering economically-priced, easy control of air spring load support solutions, LoadController (Panel, Single Path, Standard Duty) from Air Lift w...

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    $336.99 - $336.99
    $336.99
    $336.99 - $336.99
    $336.99
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    aFe Scorcher HD Module 04.5-10 GM Diesel Trucks LLY/LBZ/LMM 6.6L V8 (td)

    aFe
    $563.75
    $563.75 - $563.75
    $563.75
    $451.00
    $451.00 - $451.00
    $451.00

    Put up to 40hp and 51lbs. x ft. torque to your N54 today! The aFe Power SCORCHER Module is designed to alter the pressure sensor signals to increas...

    View full details
    $563.75
    $563.75 - $563.75
    $563.75
    $451.00
    $451.00 - $451.00
    $451.00
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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.