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LLY Duramax Parts

Parts for the LLY Duramax (2004.5 to 2005).

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    South Bend Clutch 09/01-06 GM 6.6L LLY ZF-6 Dual Friction Kevlar/Ceramic Clutch Kit

    South Bend Clutch
    $1,196.43
    $1,196.43 - $1,196.43
    $1,196.43
    $1,160.54
    $1,160.54 - $1,160.54
    $1,160.54

    South Bend Clutch Model SDM0105DFKSouth Bend Clutch Stage 2 Kevlar / Ceramic Clutch Kit. This Stage 2 Kevlar / Ceramic Clutch is crafted for enhanc...

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    $1,196.43
    $1,196.43 - $1,196.43
    $1,196.43
    $1,160.54
    $1,160.54 - $1,160.54
    $1,160.54
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    South Bend Clutch 01-Sept 05 GM 6.6L LLY ZF-6 Stage 4 Organic/Ceramic Triple Disc Street Clutch Kit*

    South Bend Clutch
    $3,589.29
    $3,589.29 - $3,589.29
    $3,589.29
    $3,481.61
    $3,481.61 - $3,481.61
    $3,481.61

    South Bend Clutch Model DDDCMAX-Y South Bend Half Organic Half Ceramic Non-SFI approved Street Triple Disc Clutch Kit w/ Flywhel. *The Concentric S...

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    $3,589.29
    $3,589.29 - $3,589.29
    $3,589.29
    $3,481.61
    $3,481.61 - $3,481.61
    $3,481.61
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    South Bend Clutch 01-Sept 05 GM 6.6L LLY ZF-6 Stage 5 Organic/Ceramic Street Dual Disc Clutch Kit*

    South Bend Clutch
    $2,392.86
    $2,392.86 - $2,392.86
    $2,392.86
    $2,321.08
    $2,321.08 - $2,321.08
    $2,321.08

    South Bend Clutch Model DDCMAX-YSouth Bend Half Organic Half Ceramic Non-SFI approved Street Dual Disc Clutch Kit w/ Flywhel. The Concentric Slave ...

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    $2,392.86
    $2,392.86 - $2,392.86
    $2,392.86
    $2,321.08
    $2,321.08 - $2,321.08
    $2,321.08
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    Mishimoto 99-13 Chevrolet Silverado / GMC Sierra Transmission Cooler

    Mishimoto
    $440.00
    $440.00 - $440.00
    $440.00
    $399.95
    $399.95 - $399.95
    $399.95

    There's no greater enemy for a transmission than heat. Whether your 1999-2013 GMT800 or 900 Chevy Silverado/GMC Sierra is a dedicated tow vehicle, ...

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    $440.00
    $440.00 - $440.00
    $440.00
    $399.95
    $399.95 - $399.95
    $399.95
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    Mishimoto 01-05 Chevrolet/GMC 6.6L Duramax (LB7/LLY) Transmission Cooler Line Kit

    Mishimoto
    $330.00
    $330.00 - $330.00
    $330.00
    $299.95
    $299.95 - $299.95
    $299.95

    Every truck owner knows that it doesn't matter how powerful or reliable your engine is if you can't get any power to the wheels. The transmission m...

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    $330.00
    $330.00 - $330.00
    $330.00
    $299.95
    $299.95 - $299.95
    $299.95
    Save 9% Save %
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    BD Diesel Proforce Torque Converter 2001-2010 6.6L Duramax Allison Equipped

    BD Diesel
    $1,230.88 - $1,230.88
    $1,230.88
    $1,294.95
    $1,294.95 - $1,294.95
    $1,294.95

    BD Diesel Proforce Torque Converter 2001-2010 6.6L Duramax Allison Equipped BD torque converters feature exclusive performance cast aluminum stato...

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    $1,230.88 - $1,230.88
    $1,230.88
    $1,294.95
    $1,294.95 - $1,294.95
    $1,294.95
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    BD Diesel Trans Filter Service Kit - Chevy 2001-2016 Allison 1000

    BD Diesel
    $42.73 - $42.73
    $42.73
    $48.95
    $48.95 - $48.95
    $48.95

    Fits: 10 vehicle models, including 2001 to 2016 Chevrolet Silverado 2500 HD; 2001 to 2016 GMC Sierra 2500 HD; 2007 to 2016 Chevrolet Silverado 3500...

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    $42.73 - $42.73
    $42.73
    $48.95
    $48.95 - $48.95
    $48.95
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    BD Diesel Shift Kit - Chev Allison 1000 2001-2005 5spd

    BD Diesel
    $424.81 - $424.81
    $424.81
    $433.95
    $433.95 - $433.95
    $433.95

    NOTICE: This kit requires removal of the transmission for installation of the internal parts; Installation recommendation: Experienced technician; ...

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    $424.81 - $424.81
    $424.81
    $433.95
    $433.95 - $433.95
    $433.95
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    BD Diesel Deep Sump Trans Pan - 2001-2010 Chev Allison 1000

    BD Diesel
    $409.29 - $409.29
    $409.29
    $439.95
    $439.95 - $439.95
    $439.95

    High volumes of cool transmission fluid equate to long transmission life. BDs deep aluminum pans increases the oil capacity by 1qt on the 1989-2007...

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    $409.29 - $409.29
    $409.29
    $439.95
    $439.95 - $439.95
    $439.95
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    BD Diesel Proforce 3D Torque Converter 2001-2016 LB7 LLY LBZ LMM LML Duramax Allison 1000

    BD Diesel
    $1,598.51 - $1,598.51
    $1,598.51
    $1,715.95
    $1,715.95 - $1,715.95
    $1,715.95

    Not all multi-disc converters are created equal and with BD's ProForce 3D, less is more. Our in-house CNC machined billet cover is designed to...

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    $1,598.51 - $1,598.51
    $1,598.51
    $1,715.95
    $1,715.95 - $1,715.95
    $1,715.95
    Select Options
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    BD Diesel Built-It Trans Kit 2004-2006 Chevy LLY Allison Stage 4 Master Rebuild Kit

    BD Diesel
    $2,228.09 - $2,228.09
    $2,228.09
    $2,402.95
    $2,402.95 - $2,402.95
    $2,402.95

    Same parts used in our own performance transmissions; All kits include the basic rebuild parts and gaskets; C1 Clutch Pack Raybestos Z-Pack; C2 Clu...

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    $2,228.09 - $2,228.09
    $2,228.09
    $2,402.95
    $2,402.95 - $2,402.95
    $2,402.95
    Select Options
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    Yukon Gear Yoke Holder Tool

    Yukon Gear & Axle
    $174.89 - $174.89
    $174.89
    $174.89 - $174.89
    $174.89

    This tool securely holds the yoke to provide leverage while working on the differential. No returns.Installation InstructionsInstallation Instructi...

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    $174.89 - $174.89
    $174.89
    $174.89 - $174.89
    $174.89
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    Yukon Gear The Yukon Carrier Bearing Puller | Part YT P22

    Yukon Gear & Axle
    $897.89 - $897.89
    $897.89
    $897.89 - $897.89
    $897.89

    The Yukon carrier bearing Puller works with an impact gun to quickly and safely remove carrier bearings without damaging them. This unit comes with...

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    $897.89 - $897.89
    $897.89
    $897.89 - $897.89
    $897.89
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    Yukon Gear Set Up Bearing | Part YT SB-HM807046

    Yukon Gear & Axle
    $182.89 - $182.89
    $182.89
    $182.89 - $182.89
    $182.89

    This tool presets bearings that easily slip on and off bearing journals to allow for easier pinion and carrier shim adjustments. No returns.Install...

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    $182.89 - $182.89
    $182.89
    $182.89 - $182.89
    $182.89
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    Yukon Gear Seal Puller Tool

    Yukon Gear & Axle
    $70.89 - $70.89
    $70.89
    $70.89 - $70.89
    $70.89

    Fits: 36 vehicle models, including 1980 to 2002, 2010 to 2018 Chevrolet Camaro; 1985 to 2005 Chevrolet Astro; 1987 to 2005 Chevrolet Blazer. See th...

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    $70.89 - $70.89
    $70.89
    $70.89 - $70.89
    $70.89
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    Yukon Gear Installer Tool Package

    Yukon Gear & Axle
    $1,936.89 - $1,936.89
    $1,936.89
    $1,936.89 - $1,936.89
    $1,936.89

    Geared for the installer, this quality Yukon kit is a true time-saver. It includes a carrier bearing puller, axle bearing puller, housing spreader,...

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    $1,936.89 - $1,936.89
    $1,936.89
    $1,936.89 - $1,936.89
    $1,936.89
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    Yukon Gear Bearing Race Driver Set / 21 Piece

    Yukon Gear & Axle
    $1,690.89 - $1,690.89
    $1,690.89
    $1,690.89 - $1,690.89
    $1,690.89

    This 21-piece bearing race driver set will work on a vast majority of differentials. (Box weight: 140 lbs) No returns.Installation InstructionsInst...

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    $1,690.89 - $1,690.89
    $1,690.89
    $1,690.89 - $1,690.89
    $1,690.89
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    Yukon Gear Bearing Race Driver | Part YT BD-LM104911

    Yukon Gear & Axle
    $137.89 - $137.89
    $137.89
    $137.89 - $137.89
    $137.89

    Fits: 49 vehicle models, including 1975 to 1995 Chevrolet G20; 1966 to 1986 Ford Bronco; 1996 to 2015 Chevrolet Express 2500. See the full fitment ...

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    $137.89 - $137.89
    $137.89
    $137.89 - $137.89
    $137.89
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    Yukon Gear Bearing Race Driver | Part YT BD-HM804810

    Yukon Gear & Axle
    $137.89 - $137.89
    $137.89
    $137.89 - $137.89
    $137.89

    Fits: 44 vehicle models, including 1996 to 2014 Chevrolet Express 1500; 1996 to 2013 Chevrolet Express 2500; 1979 to 1996 Chevrolet G30. See the fu...

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    $137.89 - $137.89
    $137.89
    $137.89 - $137.89
    $137.89
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    Yukon Gear Bearing Race Driver | Part YT BD-HM88610

    Yukon Gear & Axle
    $137.89 - $137.89
    $137.89
    $137.89 - $137.89
    $137.89

    NO RETRN BEARING RACE DRIVER, CHY 7.25, 9.25 FRONT, D27, D30, D36, D44, D50, GM 9.25IFS, GM 9.5, M35Installation InstructionsInstallation Instructi...

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    $137.89 - $137.89
    $137.89
    $137.89 - $137.89
    $137.89
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    Yukon Gear Bearing Race Driver | Part YT BD-HM807010

    Yukon Gear & Axle
    $137.89 - $137.89
    $137.89
    $137.89 - $137.89
    $137.89

    Fits: 61 vehicle models, including 1977 to 2002 Ford E350 Econoline Club Wagon; 1975 to 1998 Ford E350 Econoline; 1979 to 1986, 1988 to 2000 GMC C3...

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    $137.89 - $137.89
    $137.89
    $137.89 - $137.89
    $137.89
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    Yukon Gear Bearing Race Driver | Part YT BD-3920

    Yukon Gear & Axle
    $137.89 - $137.89
    $137.89
    $137.89 - $137.89
    $137.89

    Fits: 25 vehicle models, including 1985 to 2002 Ford E250 Econoline; 1985 to 1999 Ford F250; 1985 to 1998 Ford E350 Econoline. See the full fitment...

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    $137.89 - $137.89
    $137.89
    $137.89 - $137.89
    $137.89
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    Yukon Gear Bearing Race Driver | Part YT BD-382A

    Yukon Gear & Axle
    $108.89 - $108.89
    $108.89
    $108.89 - $108.89
    $108.89

    Fits: 51 vehicle models, including 1975 to 1995 Chevrolet G20; 1979 to 1986, 1988 to 2000 GMC C3500; 1996 to 2015 Chevrolet Express 2500. See the f...

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    $108.89 - $108.89
    $108.89
    $108.89 - $108.89
    $108.89
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    Yukon Gear 7/8in Bronze Bearing Race Punch

    Yukon Gear & Axle
    $125.89 - $125.89
    $125.89
    $125.89 - $125.89
    $125.89

    Make quick work of the often-tedious removal of bearing races. Brass construction is corrosion resistant and wont chip or shatter. No returns.Insta...

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    $125.89 - $125.89
    $125.89
    $125.89 - $125.89
    $125.89

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.