Skip to content
Free Shipping on most orders over $150.00. Buy now, pay later with ShopPay.
Free Shipping on most orders over $150.00. Buy now, pay later with ShopPay.

LLY Duramax Parts

One of the biggest differences between the LLY and its predecessor, the LB7, is that the LLY is fitted with emissions controlling technology. Now equipped with a faster spooling Turbocharger which created more torque sooner with less emissions. Powerhouse Diesel has a huge selection of LLY Duramax parts to help you boost its performance, extend its lifespan and ensure it remains in good working order for as long as possible.

Filters

  • responsive-image responsive-image

    Yukon Gear Dura Grip Positraction For GM 9.5in w/ 33 Spline Axles

    Yukon Gear & Axle
    $ 16,966.00 - $ 16,966.00
    $ 16,966.00
    $ 16,966.00 - $ 16,966.00
    $ 16,966.00

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

    View full details
    $ 16,966.00 - $ 16,966.00
    $ 16,966.00
    $ 16,966.00 - $ 16,966.00
    $ 16,966.00
  • responsive-image responsive-image

    Yukon Gear Dura Grip Positraction For 10.5in GM 14 Bolt Truck / 4.10 & Down

    Yukon Gear & Axle
    $ 19,945.00 - $ 19,945.00
    $ 19,945.00
    $ 19,945.00 - $ 19,945.00
    $ 19,945.00

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

    View full details
    $ 19,945.00 - $ 19,945.00
    $ 19,945.00
    $ 19,945.00 - $ 19,945.00
    $ 19,945.00
  • responsive-image responsive-image

    Yukon Gear Crush Sleeve Eliminator Kit For GM 10.5in 14 Bolt Truck

    Yukon Gear & Axle
    $ 1,884.00 - $ 1,884.00
    $ 1,884.00
    $ 1,884.00 - $ 1,884.00
    $ 1,884.00

    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...

    View full details
    $ 1,884.00 - $ 1,884.00
    $ 1,884.00
    $ 1,884.00 - $ 1,884.00
    $ 1,884.00
  • responsive-image responsive-image

    Yukon Gear Chrome Cover For 9.5in GM

    Yukon Gear & Axle
    $ 1,224.00 - $ 1,224.00
    $ 1,224.00
    $ 1,224.00 - $ 1,224.00
    $ 1,224.00

    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
    $ 1,224.00 - $ 1,224.00
    $ 1,224.00
    $ 1,224.00 - $ 1,224.00
    $ 1,224.00
  • responsive-image responsive-image

    Yukon Gear Cross Pin Shaft For GM 9.5in / Fits Standard & Yukon Dura Grip or Eaton Posi Carrier

    Yukon Gear & Axle
    $ 583.00 - $ 583.00
    $ 583.00
    $ 583.00 - $ 583.00
    $ 583.00

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

    View full details
    $ 583.00 - $ 583.00
    $ 583.00
    $ 583.00 - $ 583.00
    $ 583.00
  • responsive-image responsive-image

    Yukon Gear Dana 60 Full-Floating Blank 35-Spline Diameter Non-Drilled 4340 Chromoly Axle Shaft

    Yukon Gear & Axle
    $ 5,126.00 - $ 5,126.00
    $ 5,126.00
    $ 5,126.00 - $ 5,126.00
    $ 5,126.00

    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...

    View full details
    $ 5,126.00 - $ 5,126.00
    $ 5,126.00
    $ 5,126.00 - $ 5,126.00
    $ 5,126.00
  • responsive-image responsive-image

    Yukon Gear Chrome Cover For 10.5in GM 14 Bolt Truck

    Yukon Gear & Axle
    $ 1,167.00 - $ 1,167.00
    $ 1,167.00
    $ 1,167.00 - $ 1,167.00
    $ 1,167.00

    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
    $ 1,167.00 - $ 1,167.00
    $ 1,167.00
    $ 1,167.00 - $ 1,167.00
    $ 1,167.00
  • responsive-image responsive-image

    Yukon Gear 8.25in GM IFS Pinion Seal (88 and Up)

    Yukon Gear & Axle
    $ 489.00 - $ 489.00
    $ 489.00
    $ 489.00 - $ 489.00
    $ 489.00

    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...

    View full details
    $ 489.00 - $ 489.00
    $ 489.00
    $ 489.00 - $ 489.00
    $ 489.00
  • responsive-image responsive-image

    Yukon Gear 4340 Chrome Moly Rear Axle For GM 11.5in 14 Bolt Truck 30 Spline

    Yukon Gear & Axle
    $ 7,540.00 - $ 7,540.00
    $ 7,540.00
    $ 7,540.00 - $ 7,540.00
    $ 7,540.00

    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...

    View full details
    $ 7,540.00 - $ 7,540.00
    $ 7,540.00
    $ 7,540.00 - $ 7,540.00
    $ 7,540.00
  • responsive-image responsive-image

    Yukon Gear 1541H Right Hand Long Side Stub Axle For 97-00 GM 9.25in IFS

    Yukon Gear & Axle
    $ 11,197.00 - $ 11,197.00
    $ 11,197.00
    $ 11,197.00 - $ 11,197.00
    $ 11,197.00

    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
    $ 11,197.00 - $ 11,197.00
    $ 11,197.00
    $ 11,197.00 - $ 11,197.00
    $ 11,197.00
  • responsive-image responsive-image

    Yukon Gear 1541H Alloy Front Leftt Hand Short Side Stub Axle For GM 9.25in IFS (88+)

    Yukon Gear & Axle
    $ 6,653.00 - $ 6,653.00
    $ 6,653.00
    $ 6,653.00 - $ 6,653.00
    $ 6,653.00

    Fits 2007 and newer clamshell applications, will also work for 4WD/ AWD 2006 & older applications when used with YPKGM9.25IFS-S-33 internal gea...

    View full details
    $ 6,653.00 - $ 6,653.00
    $ 6,653.00
    $ 6,653.00 - $ 6,653.00
    $ 6,653.00
  • responsive-image responsive-image

    Yukon Gear 1480 Lifetime Series U/Joint 4.188in Ring Span 1.375in Cap Diameter Outside Snap Ring

    Yukon Gear & Axle
    $ 1,714.00 - $ 1,714.00
    $ 1,714.00
    $ 1,714.00 - $ 1,714.00
    $ 1,714.00

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

    View full details
    $ 1,714.00 - $ 1,714.00
    $ 1,714.00
    $ 1,714.00 - $ 1,714.00
    $ 1,714.00
  • responsive-image responsive-image

    Yukon Gear 1410 U/Joint w/Zerk Fitting 4.188in Snap Ring 1.118in Cap Diameter Outside Snap Ring

    Yukon Gear & Axle
    $ 1,092.00 - $ 1,092.00
    $ 1,092.00
    $ 1,092.00 - $ 1,092.00
    $ 1,092.00

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

    View full details
    $ 1,092.00 - $ 1,092.00
    $ 1,092.00
    $ 1,092.00 - $ 1,092.00
    $ 1,092.00
  • responsive-image responsive-image

    Yukon Gear 1410 Lifetime Series U/Joint 4.188in Ring Span - 1.188in Capt Diameter Outside Snap

    Yukon Gear & Axle
    $ 1,299.00 - $ 1,299.00
    $ 1,299.00
    $ 1,299.00 - $ 1,299.00
    $ 1,299.00

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

    View full details
    $ 1,299.00 - $ 1,299.00
    $ 1,299.00
    $ 1,299.00 - $ 1,299.00
    $ 1,299.00
  • responsive-image responsive-image

    Yukon Gear 1350 Lifetime Series U-Joint 3.625in Ring Span 1.188in Cap Diameter Outside Snap Ring

    Yukon Gear & Axle
    $ 998.00 - $ 998.00
    $ 998.00
    $ 998.00 - $ 998.00
    $ 998.00

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

    View full details
    $ 998.00 - $ 998.00
    $ 998.00
    $ 998.00 - $ 998.00
    $ 998.00
  • responsive-image responsive-image

    Yukon Gear 11.5in GM Standard Open Side Gear Thrust Washer

    Yukon Gear & Axle
    $ 564.00 - $ 564.00
    $ 564.00
    $ 564.00 - $ 564.00
    $ 564.00

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

    View full details
    $ 564.00 - $ 564.00
    $ 564.00
    $ 564.00 - $ 564.00
    $ 564.00
  • responsive-image responsive-image

    Yukon Gear 11.5in GM Standard Open Cross Pin Shaft

    Yukon Gear & Axle
    $ 885.00 - $ 885.00
    $ 885.00
    $ 885.00 - $ 885.00
    $ 885.00

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

    View full details
    $ 885.00 - $ 885.00
    $ 885.00
    $ 885.00 - $ 885.00
    $ 885.00
  • responsive-image responsive-image

    Yukon Gear 11.5in GM & Chrysler Crush Sleeve

    Yukon Gear & Axle
    $ 1,280.00 - $ 1,280.00
    $ 1,280.00
    $ 1,280.00 - $ 1,280.00
    $ 1,280.00

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

    View full details
    $ 1,280.00 - $ 1,280.00
    $ 1,280.00
    $ 1,280.00 - $ 1,280.00
    $ 1,280.00
  • responsive-image responsive-image

    Yukon Gear 11.5in Chrysler & GM Helical Gear Type Positraction

    Yukon Gear & Axle
    $ 37,704.00 - $ 37,704.00
    $ 37,704.00
    $ 37,704.00 - $ 37,704.00
    $ 37,704.00

    Yukon gear-type helical limited slip differentials know how to put the power down. They use floating helical-cut worm gears that lock the torque do...

    View full details
    $ 37,704.00 - $ 37,704.00
    $ 37,704.00
    $ 37,704.00 - $ 37,704.00
    $ 37,704.00
  • responsive-image responsive-image

    Yukon Gear 11.5in Chrysler & GM Cover Gasket

    Yukon Gear & Axle
    $ 658.00 - $ 658.00
    $ 658.00
    $ 658.00 - $ 658.00
    $ 658.00

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

    View full details
    $ 658.00 - $ 658.00
    $ 658.00
    $ 658.00 - $ 658.00
    $ 658.00
  • responsive-image responsive-image

    Yukon Gear - Yukon 1350 U-Joint w/Zerk Fitting

    Yukon Gear & Axle
    $ 960.00 - $ 960.00
    $ 960.00
    $ 960.00 - $ 960.00
    $ 960.00

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

    View full details
    $ 960.00 - $ 960.00
    $ 960.00
    $ 960.00 - $ 960.00
    $ 960.00
  • responsive-image responsive-image

    Yukon Gear - Yukon 1350 To 1410 Conversion U/Joint

    Yukon Gear & Axle
    $ 1,394.00 - $ 1,394.00
    $ 1,394.00
    $ 1,394.00 - $ 1,394.00
    $ 1,394.00

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

    View full details
    $ 1,394.00 - $ 1,394.00
    $ 1,394.00
    $ 1,394.00 - $ 1,394.00
    $ 1,394.00
  • responsive-image responsive-image

    Yukon 1350 To Mechanics 3R Adaptor U-Joint

    Yukon Gear & Axle
    $ 1,733.00 - $ 1,733.00
    $ 1,733.00
    $ 1,733.00 - $ 1,733.00
    $ 1,733.00

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

    View full details
    $ 1,733.00 - $ 1,733.00
    $ 1,733.00
    $ 1,733.00 - $ 1,733.00
    $ 1,733.00
  • responsive-image responsive-image

    Yukon Full Float Rear Wheel Seal for GM 14T & 11.5in

    Yukon Gear & Axle
    $ 885.00 - $ 885.00
    $ 885.00
    $ 885.00 - $ 885.00
    $ 885.00

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

    View full details
    $ 885.00 - $ 885.00
    $ 885.00
    $ 885.00 - $ 885.00
    $ 885.00

BUILT FOR PERFORMANCE

This second gen Duramax is now equipped with a faster spooling Turbocharger which created more torque sooner with less emissions. Powerhouse Diesel has a huge selection of LLY Duramax parts to help you boost its performance, extend its lifespan and ensure it remains in good working order for as long as possible.

Here at Powerhouse Diesel, our inventory of LLY duramax performance parts and accessories includes just about everything you could need. We have a huge range of options from many of the top manufacturers in the industry, including Fleece, Kryptonite, DDP and Rough Country. This is critical because when you’re trying to make improvements to how your engine performs, you need to have the highest-quality components. Without the best LLY upgrades, there’s a good chance you’ll continue to have issues with your engine.

Our selection of LLY duramax parts can help you no matter what you’re looking for from your truck. Whether you’re trying to boost efficiency, get more raw power or just need to perform routine maintenance, we have something to help you. Here you’ll find LLY accessories and parts including:

  • Suspension parts
  • Turbochargers
  • Exhausts
  • Injectors
  • Intakes and cooling system parts
  • Injection pumps and lift pumps
  • And more

LET US SHOW YOU THE WAY

Our expertise and knowledge make us the best place to look for parts to upgrade your LLY Duramax. When you shop with us, our experienced team can help you narrow down your search and find the components that are perfect for whatever result you want. We’ll answer your questions and show you all your options so you can get the most from your engine. If you’re ready to learn more about what we have in stock and what it can do for you, browse through our products or get in touch with us today.

Powerhouse Diesel