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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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  • Yukon Gear High Performance Gear Set For 10.5in GM 14 Bolt Truck in a 4.56 Ratio

    Yukon Gear & Axle
    Original price $861.00 - Original price $861.00
    Original price
    $861.00
    $861.00 - $861.00
    Current price $861.00

    Yukon Gear & Axle high performance ring & pinions set the standard for quality. Yukon Engineers use state-of-the art design & testing p...

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    Original price $861.00 - Original price $861.00
    Original price
    $861.00
    $861.00 - $861.00
    Current price $861.00
  • Yukon Gear High Performance Gear Set For 10.5in GM 14 Bolt Truck in a 3.73 Ratio

    Yukon Gear & Axle
    Original price $726.00 - Original price $726.00
    Original price
    $726.00
    $726.00 - $726.00
    Current price $726.00

    Yukon Gear & Axle high performance ring & pinions set the standard for quality. Yukon Engineers use state-of-the art design & testing p...

    View full details
    Original price $726.00 - Original price $726.00
    Original price
    $726.00
    $726.00 - $726.00
    Current price $726.00
  • Yukon Gear High Performance Gear Set For 10.5in GM 14 Bolt Truck in a 3.42 Ratio

    Yukon Gear & Axle
    Original price $861.00 - Original price $861.00
    Original price
    $861.00
    $861.00 - $861.00
    Current price $861.00

    Yukon Gear & Axle high performance ring & pinions set the standard for quality. Yukon Engineers use state-of-the art design & testing p...

    View full details
    Original price $861.00 - Original price $861.00
    Original price
    $861.00
    $861.00 - $861.00
    Current price $861.00
  • Yukon Gear Grizzly Locker For GM 10.5in 14T Differential 40 Spline 4.10-Down Ratio

    Yukon Gear & Axle
    Original price $1,405.00 - Original price $1,405.00
    Original price
    $1,405.00
    $1,405.00 - $1,405.00
    Current price $1,405.00

    Everything about the Yukon Grizzly Locker is hardcore, its casing and gears, its advanced gear tooth design, and its impact on traction and perform...

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    Original price $1,405.00 - Original price $1,405.00
    Original price
    $1,405.00
    $1,405.00 - $1,405.00
    Current price $1,405.00
  • Yukon Gear Grizzly Locker For GM 10.5in 14 Bolt Truck w/ 30 Spline Axles

    Yukon Gear & Axle
    Original price $1,309.00 - Original price $1,309.00
    Original price
    $1,309.00
    $1,309.00 - $1,309.00
    Current price $1,309.00

    Everything about the Yukon Grizzly Locker is hardcore, its casing and gears, its advanced gear tooth design, and its impact on traction and perform...

    View full details
    Original price $1,309.00 - Original price $1,309.00
    Original price
    $1,309.00
    $1,309.00 - $1,309.00
    Current price $1,309.00
  • Yukon Gear Grizzly Locker For GM & Chrysler 11.5in w/ 38 Spline Axles

    Yukon Gear & Axle
    Original price $3,151.00 - Original price $3,151.00
    Original price
    $3,151.00
    $3,151.00 - $3,151.00
    Current price $3,151.00

    Everything about the Yukon Grizzly Locker is hardcore, its casing and gears, its advanced gear tooth design, and its impact on traction and perform...

    View full details
    Original price $3,151.00 - Original price $3,151.00
    Original price
    $3,151.00
    $3,151.00 - $3,151.00
    Current price $3,151.00
  • Yukon Gear Eaton-Type Positraction Carbon Clutch Kit w/ 14 Plates For GM 14T and 10.5in

    Yukon Gear & Axle
    Original price $521.00 - Original price $521.00
    Original price
    $521.00
    $521.00 - $521.00
    Current price $521.00

    Yukon Gear & Axle clutch kits fit popular GM diffs outfitted with a Yukon Dura Grip positraction unit feature 14 advanced carbon clutch plates,...

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    Original price $521.00 - Original price $521.00
    Original price
    $521.00
    $521.00 - $521.00
    Current price $521.00
  • Yukon Gear Eaton-Type 14 Plate Carbon Clutch Set For 9.5in GM and 9.75in Ford

    Yukon Gear & Axle
    Original price $589.00 - Original price $589.00
    Original price
    $589.00
    $589.00 - $589.00
    Current price $589.00

    Yukon Gear & Axle spider gear kits feature higher quality materials and better manufacturing techniques than OEM to ensure a longer lasting spi...

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    Original price $589.00 - Original price $589.00
    Original price
    $589.00
    $589.00 - $589.00
    Current price $589.00
  • Yukon Gear Finned Aluminum Cover For Dodge & GM 11.5in

    Yukon Gear & Axle
    Original price $610.00 - Original price $610.00
    Original price
    $610.00
    $610.00 - $610.00
    Current price $610.00

    These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design made from aluminum and polish...

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    Original price $610.00 - Original price $610.00
    Original price
    $610.00
    $610.00 - $610.00
    Current price $610.00
  • Yukon Gear Eaton Positraction Shim Kit For 10.5in GM 14 Bolt Truck

    Yukon Gear & Axle
    Original price $121.00 - Original price $121.00
    Original price
    $121.00
    $121.00 - $121.00
    Current price $121.00

    This Yukon Gear & Axle shim kit is designed for GM 14T differentials outfitted with an Eaton positraction unit.Installation InstructionsInstall...

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    Original price $121.00 - Original price $121.00
    Original price
    $121.00
    $121.00 - $121.00
    Current price $121.00
  • Yukon Gear Eaton Positraction Shim Kit For 9.5in GM

    Yukon Gear & Axle
    Original price $62.00 - Original price $62.00
    Original price
    $62.00
    $62.00 - $62.00
    Current price $62.00

    Yukon Gear & Axle spider gear kits feature higher quality materials and better manufacturing techniques than OEM to ensure a longer lasting spi...

    View full details
    Original price $62.00 - Original price $62.00
    Original price
    $62.00
    $62.00 - $62.00
    Current price $62.00
  • Yukon Gear Dura Grip Positraction For GM 9.5in w/ 33 Spline Axles

    Yukon Gear & Axle
    Original price $1,547.00 - Original price $1,547.00
    Original price
    $1,547.00
    $1,547.00 - $1,547.00
    Current price $1,547.00

    Yukon Dura Grip is a positraction limited slip differential that provides smooth yet aggressive traction, giving you the confidence and performance...

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    Original price $1,547.00 - Original price $1,547.00
    Original price
    $1,547.00
    $1,547.00 - $1,547.00
    Current price $1,547.00
  • Yukon Gear Dura Grip Positraction For 10.5in GM 14 Bolt Truck / 4.10 & Down

    Yukon Gear & Axle
    Original price $1,831.00 - Original price $1,831.00
    Original price
    $1,831.00
    $1,831.00 - $1,831.00
    Current price $1,831.00

    Yukon Dura Grip is a positraction limited slip differential that provides smooth yet aggressive traction, giving you the confidence and performance...

    View full details
    Original price $1,831.00 - Original price $1,831.00
    Original price
    $1,831.00
    $1,831.00 - $1,831.00
    Current price $1,831.00
  • Yukon Gear Crush Sleeve Eliminator Kit For GM 10.5in 14 Bolt Truck

    Yukon Gear & Axle
    Original price $171.00 - Original price $171.00
    Original price
    $171.00
    $171.00 - $171.00
    Current price $171.00

    Crush sleeve eliminator kit for GM 10.5" 14 bolt truck. This kit contains a solid spacer & shim kit to eliminate the crush sleeve and set pinio...

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    Original price $171.00 - Original price $171.00
    Original price
    $171.00
    $171.00 - $171.00
    Current price $171.00
  • Yukon Gear Dana 60 Full-Floating Blank 35-Spline Diameter Non-Drilled 4340 Chromoly Axle Shaft

    Yukon Gear & Axle
    Original price $471.00 - Original price $471.00
    Original price
    $471.00
    $471.00 - $471.00
    Current price $471.00

    Yukon Master Overhaul Kits give you all the high-quality parts you need to start and finish every differential job. Yukon offers more tailor-made k...

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    Original price $471.00 - Original price $471.00
    Original price
    $471.00
    $471.00 - $471.00
    Current price $471.00
  • Yukon Gear Cross Pin Shaft For GM 9.5in / Fits Standard & Yukon Dura Grip or Eaton Posi Carrier

    Yukon Gear & Axle
    Original price $56.00 - Original price $56.00
    Original price
    $56.00
    $56.00 - $56.00
    Current price $56.00

    Yukon Gear & Axle manufactures a full line of top quality small parts to complete any job including ring gear bolts, crush sleeves, pinion nuts...

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    Original price $56.00 - Original price $56.00
    Original price
    $56.00
    $56.00 - $56.00
    Current price $56.00
  • Yukon Gear Chrome Cover For 9.5in GM

    Yukon Gear & Axle
    Original price $114.00 - Original price $114.00
    Original price
    $114.00
    $114.00 - $114.00
    Current price $114.00

    These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.Installati...

    View full details
    Original price $114.00 - Original price $114.00
    Original price
    $114.00
    $114.00 - $114.00
    Current price $114.00
  • Yukon Gear Axle For 07 and Up 9.5in GM Axle / 34.02in

    Yukon Gear & Axle
    Original price $512.00 - Original price $512.00
    Original price
    $512.00
    $512.00 - $512.00
    Current price $512.00

    Yukon Gear & Axle offers an extensive line of general replacement and high-performance axles for passenger car, truck and SUV applications. Hig...

    View full details
    Original price $512.00 - Original price $512.00
    Original price
    $512.00
    $512.00 - $512.00
    Current price $512.00
  • Yukon Gear Chrome Cover For 10.5in GM 14 Bolt Truck

    Yukon Gear & Axle
    Original price $111.00 - Original price $111.00
    Original price
    $111.00
    $111.00 - $111.00
    Current price $111.00

    These Yukon replacement diff covers take your rig a step beyond the boring factory look. They are the stock OE design finished in chrome.Installati...

    View full details
    Original price $111.00 - Original price $111.00
    Original price
    $111.00
    $111.00 - $111.00
    Current price $111.00
  • Yukon Gear 8.6in GM 12P 12T & F8.8 Carrier installation Kit

    Yukon Gear & Axle
    Original price $195.00 - Original price $195.00
    Original price
    $195.00
    $195.00 - $195.00
    Current price $195.00

    Yukon Carrier Installation Kits are a convenient and low-cost solution for carrier changes in cases where one is upgrading to a positraction limite...

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    Original price $195.00 - Original price $195.00
    Original price
    $195.00
    $195.00 - $195.00
    Current price $195.00
  • Yukon Gear 8.25in GM IFS Pinion Seal (88 and Up)

    Yukon Gear & Axle
    Original price $33.00 - Original price $33.00
    Original price
    $33.00
    $33.00 - $33.00
    Current price $33.00

    Yukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come.Ins...

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    Original price $33.00 - Original price $33.00
    Original price
    $33.00
    $33.00 - $33.00
    Current price $33.00
  • Yukon Gear 4340 Chrome Moly Rear Axle For GM 11.5in 14 Bolt Truck 30 Spline

    Yukon Gear & Axle
    Original price $691.00 - Original price $691.00
    Original price
    $691.00
    $691.00 - $691.00
    Current price $691.00

    Yukon 4340 cut to length shaft for GM 14T & 11.5", 30 spline, 34.8"-38.8". Yukon 4340 Chrome Moly alloy axles offer a strength increase over st...

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    Original price $691.00 - Original price $691.00
    Original price
    $691.00
    $691.00 - $691.00
    Current price $691.00
  • Yukon Gear 2011+ GM Full Float Rear Axle 11.5in - 37.25in Long

    Yukon Gear & Axle
    Original price $424.00 - Original price $424.00
    Original price
    $424.00
    $424.00 - $424.00
    Current price $424.00

    Yukon Gear & Axle offers an extensive line of general replacement and high-performance axles for passenger car, truck and SUV applications. Hig...

    View full details
    Original price $424.00 - Original price $424.00
    Original price
    $424.00
    $424.00 - $424.00
    Current price $424.00
  • Yukon Gear 1541H Alloy 8 Lug Rear Axle For GM 99+ 9.5in

    Yukon Gear & Axle
    Original price $611.00 - Original price $611.00
    Original price
    $611.00
    $611.00 - $611.00
    Current price $611.00

    Yukon 1541H alloy 8 lug rear axle for '99-'07 GM 9.5" with a length of 33-5/16 inches and 33 splines. Yukon 1541H alloy axles offer a strength incr...

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    Original price $611.00 - Original price $611.00
    Original price
    $611.00
    $611.00 - $611.00
    Current price $611.00

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.

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