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LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

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    aFe Power Cover Diff Rear Machined GM Diesel Trucks 2001-2019* Duramax 6.6L

    aFe
    $462.50
    $462.50 - $462.50
    $462.50
    $370.00
    $370.00 - $370.00
    $370.00

    aFe Power's new rear differential cover brings performance engineering to the protection of your axle's differential. This differential cover is co...

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    $462.50
    $462.50 - $462.50
    $462.50
    $370.00
    $370.00 - $370.00
    $370.00
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    Bilstein 4600 Series 2004 Chevrolet Silverado 2500 LT Front 46mm Monotube Steering Damper

    Bilstein
    $161.00
    $161.00 - $161.00
    $161.00
    $121.00
    $121.00 - $121.00
    $121.00

    Chevrolet Avalanche 2500 2006-2002, Silverado 1500 HD 2003-2001, Silverado 1500 HD 2006-2005, Silverado 2500 2004-1999, Silverado 2500 HD 2010-2001...

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    $161.00
    $161.00 - $161.00
    $161.00
    $121.00
    $121.00 - $121.00
    $121.00
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    BD Diesel Sway Bar End Link Upgrade Kit - 01-19 Chevy Silverado/GMC Sierra 2500HD/3500HD

    BD Diesel
    $71.54 - $71.54
    $71.54
    $81.95
    $81.95 - $81.95
    $81.95

    Whether making necessary repairs or upgrades to your steering setup, or running stock to 2 in. lift or leveling kits, BD's NEW sway bar end links f...

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    $71.54 - $71.54
    $71.54
    $81.95
    $81.95 - $81.95
    $81.95
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    BD Diesel 01-10 GM Silverado/Sierra 1500HD/2500HD/3500HD Tie Rod Upgrade Kit

    BD Diesel
    $261.85 - $261.85
    $261.85
    $269.95
    $269.95 - $269.95
    $269.95

    The tie rods are 1.5x thicker than OEM for reduced flex and have larger inner ball joints for reduced wear. Testing has shown the BD tie rods can t...

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    $261.85 - $261.85
    $261.85
    $269.95
    $269.95 - $269.95
    $269.95
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    BD Diesel 01-10 Chevrolet Silverado / GMC Sierra 2500HD/3500HD Steering Upgrade Kit

    BD Diesel
    $510.17 - $510.17
    $510.17
    $525.95
    $525.95 - $525.95
    $525.95

    A major common weak point on Chevrolet/GM HD series trucks is the steering linkage and tie rods with high torque engines, lift kits and larger tire...

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    $510.17 - $510.17
    $510.17
    $525.95
    $525.95 - $525.95
    $525.95
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    BD Diesel 01-10 Chevrolet Silverado / GMC Sierra 2500HD/3500HD Duramax Steering Upgrade Kit

    BD Diesel
    $869.07 - $869.07
    $869.07
    $896.95
    $896.95 - $896.95
    $896.95

    A major common weak point on Chevrolet/GM HD series trucks is the steering linkage and tie rods with high torque engines, lift kits and larger tire...

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    $869.07 - $869.07
    $869.07
    $896.95
    $896.95 - $896.95
    $896.95
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    WeatherTech FloorLiner Front Tan Standard Cab Classic for 2001 to 2006 Sierra Silverado 2500 3500

    WeatherTech
    $133.95 - $133.95
    $133.95
    $133.95 - $133.95
    $133.95

    The WeatherTech FloorLiner DigitalFit accurately and completely lines the interior carpet giving "absolute interior protection". Digital laser meas...

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    $133.95 - $133.95
    $133.95
    $133.95 - $133.95
    $133.95
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    WeatherTech FloorLiner Front Grey Standard Cab Classic for 2001 to 2006 Sierra Silverado 2500 3500

    WeatherTech
    $133.95 - $133.95
    $133.95
    $133.95 - $133.95
    $133.95

    The WeatherTech FloorLiner DigitalFit accurately and completely lines the interior carpet giving "absolute interior protection". Digital laser meas...

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    $133.95 - $133.95
    $133.95
    $133.95 - $133.95
    $133.95
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    WeatherTech FloorLiner Front Black Standard Cab Classic for 2001 to 2006 Sierra Silverado 2500 3500

    WeatherTech
    $133.95 - $133.95
    $133.95
    $133.95 - $133.95
    $133.95

    The WeatherTech FloorLiner DigitalFit accurately and completely lines the interior carpet giving "absolute interior protection". Digital laser meas...

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    $133.95 - $133.95
    $133.95
    $133.95 - $133.95
    $133.95
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    WeatherTech FloorLiner Rear Tan Extended Cab Classic for 2001 to 2006 Sierra Silverado 2500 3500

    WeatherTech
    $98.95 - $98.95
    $98.95
    $98.95 - $98.95
    $98.95

    The WeatherTech FloorLiner DigitalFit accurately and completely lines the interior carpet giving "absolute interior protection". Digital laser meas...

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    $98.95 - $98.95
    $98.95
    $98.95 - $98.95
    $98.95
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    WeatherTech FloorLiner Rear Grey Extended Cab Classic for 2001 to 2006 Sierra Silverado 2500 3500

    WeatherTech
    $98.95 - $98.95
    $98.95
    $98.95 - $98.95
    $98.95

    The WeatherTech FloorLiner DigitalFit accurately and completely lines the interior carpet giving "absolute interior protection". Digital laser meas...

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    $98.95 - $98.95
    $98.95
    $98.95 - $98.95
    $98.95
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    WeatherTech FloorLiner Rear Black Extended Cab Classic for 2001 to 2006 Sierra Silverado 2500 3500 440622

    WeatherTech
    $108.95 - $108.95
    $108.95
    $108.95 - $108.95
    $108.95

    The WeatherTech FloorLiner DigitalFit accurately and completely lines the interior carpet giving "absolute interior protection". Digital laser meas...

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    $108.95 - $108.95
    $108.95
    $108.95 - $108.95
    $108.95
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    WeatherTech FloorLiner Rear Black Extended Cab Classic for 2001 to 2006 Sierra Silverado 2500 3500 440034

    WeatherTech
    $98.95 - $98.95
    $98.95
    $98.95 - $98.95
    $98.95

    The WeatherTech FloorLiner DigitalFit accurately and completely lines the interior carpet giving "absolute interior protection". Digital laser meas...

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    $98.95 - $98.95
    $98.95
    $98.95 - $98.95
    $98.95
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    WeatherTech TechShade for 2001 to 2006 Silverado Sierra 2500 3500

    WeatherTech
    $73.95 - $73.95
    $73.95
    $73.95 - $73.95
    $73.95

    Custom fit and perfect for any season, the TechShade can keep your vehicle cool in the summer and help prevent frost build up in the winter. Refle...

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    $73.95 - $73.95
    $73.95
    $73.95 - $73.95
    $73.95
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    Mishimoto Upper & Lower Silicone Radiator Hose Kit 2001-2005 Duramax 6.6L - Red

    Mishimoto
    $352.00
    $352.00 - $352.00
    $352.00
    $319.95
    $319.95 - $319.95
    $319.95

    Mishimoto Upper & Lower Silicone Radiator Hose Kit 2001-2005 Duramax 6.6L Mishimoto's Duramax coolant hose kits are constructed from a combinat...

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    $352.00
    $352.00 - $352.00
    $352.00
    $319.95
    $319.95 - $319.95
    $319.95
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    Mishimoto HOT SIDE Intercooler Pipe & Boot Kit 04.5-10 LLY LBZ LMM 6.6L Duramax

    Mishimoto
    $302.00
    $302.00 - $302.00
    $302.00
    $274.95
    $274.95 - $274.95
    $274.95

    Mishimoto HOT SIDE Intercooler Pipe & Boot Kit 04.5-10 LLY LBZ LMM 6.6L Duramax Improve the power and efficiency of your Duramax with the Mishi...

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    $302.00
    $302.00 - $302.00
    $302.00
    $274.95
    $274.95 - $274.95
    $274.95
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    Mishimoto Aluminum Intercooler Pipe & Boot Kit 2002*-2004 LB7 - NOT 2001 MODEL

    Mishimoto
    $561.00
    $561.00 - $561.00
    $561.00
    $509.95
    $509.95 - $509.95
    $509.95

    The Mishimoto 6.6L Duramax intercooler pipe and boot kit is an ideal upgrade in reliability and performance.The Mishimoto kit features polished al...

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    $561.00
    $561.00 - $561.00
    $561.00
    $509.95
    $509.95 - $509.95
    $509.95
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    Mishimoto 01-07 Chevy/GMC 6.6L Duramax Degas Tank - Natural

    Mishimoto
    $467.00
    $467.00 - $467.00
    $467.00
    $424.95
    $424.95 - $424.95
    $424.95

    Two decades of heat cycling plastic components, such as your factory degas tank, will undoubtedly make them brittle and discolored. If your factory...

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    $467.00
    $467.00 - $467.00
    $467.00
    $424.95
    $424.95 - $424.95
    $424.95
    Save 9% Save %
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    Mishimoto 01-07 Chevy/GMC 6.6L Duramax Degas Tank - Black

    Mishimoto
    $467.00
    $467.00 - $467.00
    $467.00
    $424.95
    $424.95 - $424.95
    $424.95

    Two decades of heat cycling plastic components, such as your factory degas tank, will undoubtedly make them brittle and discolored. If your factory...

    View full details
    $467.00
    $467.00 - $467.00
    $467.00
    $424.95
    $424.95 - $424.95
    $424.95
    Save 9% Save %
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    Mishimoto Aluminum Radiator 2001-2005 LB7 LLY Duramax 6.6L

    Mishimoto
    $990.00
    $990.00 - $990.00
    $990.00
    $899.95
    $899.95 - $899.95
    $899.95

    Mishimoto Aluminum Radiator 2001-2005 LB7 LLY Duramax 6.6L Mishimoto has released a performance aluminum radiator for the 2001-2005 Chevrolet/GMC 6...

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    $990.00
    $990.00 - $990.00
    $990.00
    $899.95
    $899.95 - $899.95
    $899.95
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    Mishimoto Aluminum Intercooler 2001-2005 LB7 LLY Duramax 6.6L - SILVER

    Mishimoto
    $1,155.00
    $1,155.00 - $1,155.00
    $1,155.00
    $1,049.95
    $1,049.95 - $1,049.95
    $1,049.95

    Mishimoto Aluminum Intercooler 2001-2005 LB7 LLY Duramax 6.6L - SILVER Mishimoto has expanded their Duramax performance parts line to include a per...

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    $1,155.00
    $1,155.00 - $1,155.00
    $1,155.00
    $1,049.95
    $1,049.95 - $1,049.95
    $1,049.95
    Save 9% Save %
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    Mishimoto Aluminum Intercooler 2001-2005 LB7 LLY Duramax 6.6L - BLACK

    Mishimoto
    $1,155.00
    $1,155.00 - $1,155.00
    $1,155.00
    $1,049.95
    $1,049.95 - $1,049.95
    $1,049.95

    Mishimoto Aluminum Intercooler 2001-2005 LB7 LLY Duramax 6.6L - BLACK Mishimoto has expanded their Duramax performance parts line to include a perf...

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    $1,155.00
    $1,155.00 - $1,155.00
    $1,155.00
    $1,049.95
    $1,049.95 - $1,049.95
    $1,049.95
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    CSF 01-05 Chevrolet Silverado 6.6L Turbo Diesel Charge-Air-Cooler

    CSF
    $999.00 - $999.00
    $999.00
    $1,181.43
    $1,181.43 - $1,181.43
    $1,181.43

    CSF Heavy Duty Intercoolers are the perfect upgrade for your 01-05 6.6L TD Silverado/Sierra HD. The Heavy-Duty Bar & Plate Construction All-Alu...

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    $999.00 - $999.00
    $999.00
    $1,181.43
    $1,181.43 - $1,181.43
    $1,181.43
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    BD Diesel Positive Air Shutdown - Chevy 2004.5-2010 LLY/LBZ/LMM

    BD Diesel
    $947.64 - $947.64
    $947.64
    $1,031.95
    $1,031.95 - $1,031.95
    $1,031.95

    When you need an emergency engine shutdown system, then BD has the solution that is hard to PASs up. Some industries such as mining, oil refinery, ...

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    $947.64 - $947.64
    $947.64
    $1,031.95
    $1,031.95 - $1,031.95
    $1,031.95

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.