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Duramax Parts

Duramax parts for every 6.6L Duramax in Chevy Silverado HD and GMC Sierra HD trucks, from the 2001 LB7 to the current L5P. Pick your engine below to see parts that fit your truck.

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  • HD Replacement Battery Cable Set 07.5-10 Chevrolet Silverado/GMC Sierra 2500 HD/3500 HD XDP Xtreme Diesel Performance. HD Replacement Battery Cable Set 07.5-10 Chevrolet Silverado/GMC Sierra 2500 HD/3500 HD XDP Xtreme Diesel Performance.

    HD Replacement Battery Cable Set 07.5-10 Chevrolet Silverado/GMC Sierra 2500 HD/3500 HD XDP Xtreme Diesel Performance

    XDP
    $362.95 - $362.95
    $362.95
    $362.95 - $362.95
    $362.95

    XDP Model XD446Restore the charging and starting system in your GM 6.6L Duramax LMM with an XDP HD Replacement Battery Cable Set XD446. Old and wea...

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    $362.95 - $362.95
    $362.95
    $362.95 - $362.95
    $362.95
  • Photo - Primary Photo - Primary

    Yukon Gear Steel Cover For GM 9.5in

    Yukon Gear & Axle
    $75.92 - $75.92
    $75.92
    $75.92 - $75.92
    $75.92

    Yukon Gear & Axle Model YP C5-GM9.59.5" GM 14 BOLT COVER 2013& OLDER, THREADED FOR FILL PLUG, PLUG NOT INCLUDEDInstallation InstructionsIns...

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    $75.92 - $75.92
    $75.92
    $75.92 - $75.92
    $75.92
  • Photo - Primary Photo - Primary

    ATS Diesel 2006+ GM 6-Speed LCT1000 Performance Valve Body Assembly

    ATS Diesel
    $879.99 - $879.99
    $879.99
    $879.99 - $879.99
    $879.99

    Fits: 8 vehicle models, including 2011 to 2014 Chevrolet Silverado 2500 HD; 2011 to 2014 Chevrolet Silverado 3500 HD; 2011 to 2014 GMC Sierra 2500 ...

    View full details
    $879.99 - $879.99
    $879.99
    $879.99 - $879.99
    $879.99
    Select Options
  • Photo - Primary ATS Diesel 2006+ Up LCT-1000 6-Speed Stage 6 Transmission Rebuild kit

    ATS Diesel 2006+ Up LCT-1000 6-Speed Stage 6 Transmission Rebuild kit

    ATS Diesel
    $3,564.99 - $3,564.99
    $3,564.99
    $3,564.99 - $3,564.99
    $3,564.99

    Fits: 8 vehicle models, including 2011 to 2014 Chevrolet Silverado 2500 HD; 2011 to 2014 Chevrolet Silverado 3500 HD; 2011 to 2014 GMC Sierra 2500 ...

    View full details
    $3,564.99 - $3,564.99
    $3,564.99
    $3,564.99 - $3,564.99
    $3,564.99
    Select Options
  • responsive-image responsive-image

    Fleece Performance GM Automatic Transmission 20-Pin Pigtail

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $99.99
    $99.99 - $99.99
    $99.99

    Fleece Performance Model FPE-HAR-GM-AT-20-PTFleece Performance GM Automatic Transmission 20-Pin Pigtail Our replacement GM Automatic Transmission 2...

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    $0.00 - $0.00
    $0.00
    $99.99
    $99.99 - $99.99
    $99.99
  • responsive-image responsive-image

    Yukon Gear 01-07 Chevrolet/GMC Pickup/SUV w/33 Spline Output Power Steering Gear Box

    Yukon Gear & Axle
    $389.31 - $389.31
    $389.31
    $389.31 - $389.31
    $389.31

    Yukon Gear 2001 to 2007 Chevrolet/GMC Pickup/SUV with 33 Spline Output Power Steering Gear Box. Sold and shipped by Powerhouse Diesel, a diesel rep...

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    $389.31 - $389.31
    $389.31
    $389.31 - $389.31
    $389.31
  • responsive-image responsive-image

    Yukon Gear 02-22 GM Truck/SUV/Van Power Steering Gear Box

    Yukon Gear & Axle
    $466.37 - $466.37
    $466.37
    $466.37 - $466.37
    $466.37

    Yukon Gear 2002 to 2022 GM Truck/SUV/Van Power Steering Gear Box. Sold and shipped by Powerhouse Diesel, a diesel repair and performance shop in Kn...

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    $466.37 - $466.37
    $466.37
    $466.37 - $466.37
    $466.37
  • Photo - Primary Photo - Primary

    Yukon Gear Dana M300/Dana S135 Carrier Bearing Kit - 2.953in ID/ 4.370in OD

    Yukon Gear & Axle
    $161.20 - $161.20
    $161.20
    $161.20 - $161.20
    $161.20

    Yukon Gear & Axle Model CK FF001Yukon Carrier Installation Kits are a convenient and low-cost solution for carrier changes in cases where one i...

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    $161.20 - $161.20
    $161.20
    $161.20 - $161.20
    $161.20
  • Photo - Primary Photo - Primary

    ATS Diesel 2006+ GM LCT1000 6-Speed ATS Trim Valve Kit

    ATS Diesel
    $159.99 - $159.99
    $159.99
    $159.99 - $159.99
    $159.99

    Fits: 8 vehicle models, including 2006 to 2010 Chevrolet Express 2500; 2006 to 2010 Chevrolet Express 3500; 2006 to 2010 GMC Savana 2500. See the f...

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    $159.99 - $159.99
    $159.99
    $159.99 - $159.99
    $159.99
  • Photo - Primary Photo - Primary

    ATS Diesel 2006-07 GM 2wd 8.1L GAS LCT1000 6-Speed Stage 1 Transmission Package

    ATS Diesel
    $5,279.99 - $5,279.99
    $5,279.99
    $5,279.99 - $5,279.99
    $5,279.99

    Fits: 8 vehicle models, including 2006 to 2010 Chevrolet Express 2500; 2006 to 2010 Chevrolet Express 3500; 2006 to 2010 GMC Savana 2500. See the f...

    View full details
    $5,279.99 - $5,279.99
    $5,279.99
    $5,279.99 - $5,279.99
    $5,279.99
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2006-07 GM 4wd 8.1L GAS LCT1000 6-Speed Stage 1 Transmission Package

    ATS Diesel
    $5,279.99 - $5,279.99
    $5,279.99
    $5,279.99 - $5,279.99
    $5,279.99

    Fits: 8 vehicle models, including 2006 to 2010 Chevrolet Express 2500; 2006 to 2010 Chevrolet Express 3500; 2006 to 2010 GMC Savana 2500. See the f...

    View full details
    $5,279.99 - $5,279.99
    $5,279.99
    $5,279.99 - $5,279.99
    $5,279.99
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2006-07 GM 2wd w/ 8.1L Gas Engine LCT1000 6-Speed Stage 2 Transmission Package

    ATS Diesel
    $6,389.99 - $6,389.99
    $6,389.99
    $6,389.99 - $6,389.99
    $6,389.99

    Fits: 8 vehicle models, including 2006 to 2010 Chevrolet Express 2500; 2006 to 2010 Chevrolet Express 3500; 2006 to 2010 GMC Savana 2500. See the f...

    View full details
    $6,389.99 - $6,389.99
    $6,389.99
    $6,389.99 - $6,389.99
    $6,389.99
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2006-07 GM 4wd w/ 8.1L Gas Engine LCT1000 6-Speed Stage 2 Transmission Package

    ATS Diesel
    $6,389.99 - $6,389.99
    $6,389.99
    $6,389.99 - $6,389.99
    $6,389.99

    Fits: 8 vehicle models, including 2006 to 2010 Chevrolet Express 2500; 2006 to 2010 Chevrolet Express 3500; 2006 to 2010 GMC Savana 2500. See the f...

    View full details
    $6,389.99 - $6,389.99
    $6,389.99
    $6,389.99 - $6,389.99
    $6,389.99
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2006-07 GM 2wd w/ 8.1L Gas Engine LCT1000 6-Speed Stage 4 Transmission Package

    ATS Diesel
    $9,499.99 - $9,499.99
    $9,499.99
    $9,499.99 - $9,499.99
    $9,499.99

    Fits: 8 vehicle models, including 2006 to 2010 Chevrolet Express 2500; 2006 to 2010 Chevrolet Express 3500; 2006 to 2010 GMC Savana 2500. See the f...

    View full details
    $9,499.99 - $9,499.99
    $9,499.99
    $9,499.99 - $9,499.99
    $9,499.99
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2006-07 GM 4wd w/ 8.1L Gas Engine LCT1000 6-Speed Stage 4 Transmission Package

    ATS Diesel
    $9,499.99 - $9,499.99
    $9,499.99
    $9,499.99 - $9,499.99
    $9,499.99

    Fits: 8 vehicle models, including 2006 to 2010 Chevrolet Express 2500; 2006 to 2010 Chevrolet Express 3500; 2006 to 2010 GMC Savana 2500. See the f...

    View full details
    $9,499.99 - $9,499.99
    $9,499.99
    $9,499.99 - $9,499.99
    $9,499.99
    Select Options
  • Photo - Primary ATS Diesel 04.5-05 LCT-1000 5-Speed Stage 7 Transmission Rebuild kit

    ATS Diesel 04.5-05 LCT-1000 5-Speed Stage 7 Transmission Rebuild kit

    ATS Diesel
    $4,654.99 - $4,654.99
    $4,654.99
    $4,654.99 - $4,654.99
    $4,654.99

    Fits: 8 vehicle models, including 2001 to 2004 Chevrolet Silverado 2500 HD; 2001 to 2004 Chevrolet Silverado 3500; 2001 to 2004 GMC Sierra 2500 HD....

    View full details
    $4,654.99 - $4,654.99
    $4,654.99
    $4,654.99 - $4,654.99
    $4,654.99
    Select Options
  • Photo - Primary ATS Diesel 2001-04 LCT-1000 5-Speed Stage 7 Transmission Rebuild kit

    ATS Diesel 2001-04 LCT-1000 5-Speed Stage 7 Transmission Rebuild kit

    ATS Diesel
    $4,654.99 - $4,654.99
    $4,654.99
    $4,654.99 - $4,654.99
    $4,654.99

    Fits: 2001 to 2004 Chevrolet Silverado 2500 HD; 2001 to 2004 Chevrolet Silverado 3500; 2001 to 2004 GMC Sierra 2500 HD; 2001 to 2004 GMC Sierra 350...

    View full details
    $4,654.99 - $4,654.99
    $4,654.99
    $4,654.99 - $4,654.99
    $4,654.99
    Select Options
  • Photo - Primary ATS Diesel 2004.5-2005 LCT-1000 5-Speed Stage 6 Transmission Rebuild kit

    ATS Diesel 2004.5-2005 LCT-1000 5-Speed Stage 6 Transmission Rebuild kit

    ATS Diesel
    $3,564.99 - $3,564.99
    $3,564.99
    $3,564.99 - $3,564.99
    $3,564.99

    Fits: 8 vehicle models, including 2001 to 2004 Chevrolet Silverado 2500 HD; 2001 to 2004 Chevrolet Silverado 3500; 2001 to 2004 GMC Sierra 2500 HD....

    View full details
    $3,564.99 - $3,564.99
    $3,564.99
    $3,564.99 - $3,564.99
    $3,564.99
    Select Options
  • Photo - Primary ATS Diesel 2001-04 ATS LCT-1000 5-Speed Stage 6 Transmission Rebuild kit

    ATS Diesel 2001-04 ATS LCT-1000 5-Speed Stage 6 Transmission Rebuild kit

    ATS Diesel
    $3,564.99 - $3,564.99
    $3,564.99
    $3,564.99 - $3,564.99
    $3,564.99

    Fits: 2001 to 2004 Chevrolet Silverado 2500 HD; 2001 to 2004 Chevrolet Silverado 3500; 2001 to 2004 GMC Sierra 2500 HD; 2001 to 2004 GMC Sierra 350...

    View full details
    $3,564.99 - $3,564.99
    $3,564.99
    $3,564.99 - $3,564.99
    $3,564.99
    Select Options
  • Photo - Primary Photo - Primary

    ATS Diesel 2001-2010 ATS manufactured Allison C5 clutch pack

    ATS Diesel
    $314.99 - $314.99
    $314.99
    $314.99 - $314.99
    $314.99

    Fits: 10 vehicle models, including 2001 to 2004, 2007 to 2010 Chevrolet Silverado 2500 HD; 2001 to 2004, 2007 to 2010 GMC Sierra 2500 HD; 2006 to 2...

    View full details
    $314.99 - $314.99
    $314.99
    $314.99 - $314.99
    $314.99
  • Photo - Primary Photo - Primary

    ATS Diesel GM Billet Flexplate (SFI 29.3)

    ATS Diesel
    $804.99 - $804.99
    $804.99
    $804.99 - $804.99
    $804.99

    Fits: 10 vehicle models, including 2001 to 2004, 2007 to 2010 Chevrolet Silverado 2500 HD; 2001 to 2004, 2007 to 2010 GMC Sierra 2500 HD; 2006 to 2...

    View full details
    $804.99 - $804.99
    $804.99
    $804.99 - $804.99
    $804.99
  • Photo - Primary ATS Diesel Allison Billet Input Shaft

    ATS Diesel Allison Billet Input Shaft

    ATS Diesel
    $814.99 - $814.99
    $814.99
    $814.99 - $814.99
    $814.99

    Fits: 11 vehicle models, including 2001 to 2005, 2007 to 2010 Chevrolet Silverado 2500 HD; 2001 to 2005, 2007 to 2010 GMC Sierra 2500 HD; 2006 to 2...

    View full details
    $814.99 - $814.99
    $814.99
    $814.99 - $814.99
    $814.99
  • Photo - Primary Photo - Primary

    ATS Diesel 2001-05 GM LCT1000 5-Speed Trim Valve Kit

    ATS Diesel
    $159.99 - $159.99
    $159.99
    $159.99 - $159.99
    $159.99

    Fits: 8 vehicle models, including 2001 to 2004 Chevrolet Silverado 2500 HD; 2001 to 2004 Chevrolet Silverado 3500; 2001 to 2004 GMC Sierra 2500 HD....

    View full details
    $159.99 - $159.99
    $159.99
    $159.99 - $159.99
    $159.99
  • Photo - Primary Photo - Primary

    ATS Diesel 2003-05 GM LCT1000 Performance Valve Body Assembly

    ATS Diesel
    $879.99 - $879.99
    $879.99
    $879.99 - $879.99
    $879.99

    Fits: 5 vehicle models, including 2001 to 2005 Chevrolet Silverado 2500 HD; 2001 to 2005 Chevrolet Silverado 3500; 2001 to 2005 GMC Sierra 2500 HD....

    View full details
    $879.99 - $879.99
    $879.99
    $879.99 - $879.99
    $879.99
    Select Options

Duramax parts and performance upgrades for every 6.6L Duramax, from the 2001 LB7 to the current L5P. We carry injectors, fuel systems, turbos, tuning, Allison transmission parts and suspension from Kryptonite, Pro Form Fab and more.

Shop by Duramax Engine

Not sure what fits? Send us your VIN or call 865.640.2097 and we will match the right part.

Duramax FAQ

Which Duramax do I have?

The engine code is stamped on the block and often on a decal under the hood. LB7 ran 2001 to 2004, LLY 2004.5 to 2005, LBZ 2006 to 2007, LMM 2007.5 to 2010, LML 2011 to 2016, and L5P 2017 on.

Do parts interchange between Duramax generations?

Some suspension and driveline parts do, but fuel system, turbo and tuning parts are specific to each engine generation. Shop by engine and year, or send us your VIN.