Main Stud Kit 2001-2005 GM 6.6L Duramax LB7/LLY XDP Xtreme Diesel Performance
SKU: 38425733391

Main Stud Kit 2001-2005 GM 6.6L Duramax LB7/LLY XDP Xtreme Diesel Performance

Sale price$105.72 Regular price$117.47
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Description

Main Stud Kit 2001-2005 GM 6.6L Duramax LB7/LLY XDP Xtreme Diesel PerformanceThe XDP Main Stud Kit XD3007MS is essential for setting up your 2001 2005 GM 6. 6L Duramax LB7 LLY for competition or street use. OEM main bolts typically struggle to handle the pressure in high horsepower engines. Constructed using an 8740 Chrome Moly with an added proprietary element ensures these studs are more durable and will not stretch like the factory bolts. The threads are rolled after heat treating to deliver optimum fatigue strength. These

The XDP Main Stud Kit XD3007MS is essential for setting up your 2001-2005 GM 6.6L Duramax LB7/LLY for competition or street use. OEM main bolts typically struggle to handle the pressure in high-horsepower engines.

Constructed using an 8740 Chrome Moly with an added proprietary element ensures these studs are more durable and will not stretch like the factory bolts. The threads are rolled after heat-treating to deliver optimum fatigue strength.

These studs are rated at 210,000-230,000 psi yield strength and 220,000-236,000 psi tensile strength to ensure a strong hold under higher combustion pressures.

In addition to the increased strength, replacing the main bolts with studs also allows you to obtain a more precise torque reading. A bolt gets twisted as it is tightened, so it's reacting to two different forces at the same time.

With a stud the force gets applied to the vertical axis, resulting in a more even clamping force. These are a must have for high-performance applications and are reusable, unlike the OEM Torque-To-Yield (TTY) bolts which must be replaced after each use.

Furthermore, they can help offer easier engine assembly and proper alignment of the main bearing caps every time. These studs are manufactured in an ISO/TS 16949 quality control facility. Included in this kit are 12-point nuts, washers, installation instructions. Assembly lubricant sold separately.
Features:

  • Includes 12-Point Nuts and Washers
  • Yield Strength: 210,000-230,000 PSI
  • Tensile Strength: 220,000-236,000 PSI
  • Threads Rolled After Heat Treatment
  • Reusable Studs, Unlike TTY OEM Bolts
  • 10mm Studs Test Out At Max Load Of Over 120KN
  • Manufactured In ISO/TS 16949 Quality Control Facility
  • 8740 Chrome Moly Construction With Added Proprietary Element

Tech Tips:
XDP Thread Cleaning Chasers (Sold Separately):
Both the XD40126TC and XD40125T are a great add-on that will be critical during installation. Thread Cleaning Chasers are an excellent tool to have on-hand to ensure you have properly cleaned the threads in your engine block before the installation of any fasteners. Clean threads provide accurate torque readings and will help give you peace of mind during your engine build or head gasket repair.

XDP X-TRA Slick Engine and Fastener Assembly Lubricant (Sold Separately):
The use of XD541 is highly recommended during engine assembly. Apply XDP X-TRA Slick Lubricant to head studs, head bolts, main studs, main bolts, connecting rod bolts, and any other fasteners used during engine assembly. Using a proper assembly lubricant during fastener installation reduces friction and torque pre-load scatter in the torquing sequence, while also helping to prevent thread galling and seizing.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 38425733391

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Ashley
West Palm Beach, US
★★★★★ 5
Great for Docking Stations & Chargers — Not Just Laptops
Style: Deluxe
I didn’t buy this for a laptop at all—I specifically purchased it to mount my docking station and charger under my desk, and it works perfectly for that. The size is great, the shelf is sturdy, and it keeps everything neatly tucked away instead of cluttering up my workspace. If you’re looking for an under-desk solution for a docking station, charger, or other accessories (even if you don’t plan to mount a laptop), this is absolutely worth it. It cleaned up my whole setup. Highly recommend!
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Reviewed in the United States on January 19, 2026
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Sue Weddell
Charlottesville, US
★★★★★ 4
VI+AL Under Desk Laptop Mount
Style: Deluxe
Works great
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Reviewed in the United States on February 14, 2026
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Chadnic
West Palm Beach, US
★★★★★ 5
Didn't use for laptop but....
Style: Deluxe
Fantastic for my desk. I ended up using this to mount a Topping DAC under my desk and I used the side cubby to put my Google Nest Mini and Broadlink RF device. Got all that off my desk and everything tucked away just perfect. I haven't used the headphone mount yet, but I plan to use that to, low and behold, hang headphones! These are easy as heck to install and strong enough to hold up anything that will fit in the space for the most part.
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Reviewed in the United States on January 13, 2026
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Sharif
Natrona Heights, US
★★★★★ 3
good quality well made
Style: Deluxe
good quality
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Reviewed in the United States on September 24, 2025
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Kimber24
Lake Worth, US
★★★★★ 5
Solid, Space-Saving Solution for My Desk
Style: Deluxe, Style: Deluxe
The Under Desk Laptop Mount Bundle was easy to install, but I recommend taking your time to ensure any connections to the sides of your computer can be made through the openings of the bracket. It’s important to double-check this step to avoid any issues with being able to plug in any computer devices, such as power, monitors, headphones, etc. In my photos above, I did not use the included hook or basket due to where I was locating my laptop under my desk. I was unable to attach the basket due to my connections to my computer. Note that the basket can only be added to the left side of the system. It would be great if the design were improved to allow the basket to be added to either side of the system. That being said, I do like you can choose to install the basket and/or hook, or leave them off. Even with this minor design flaw, this bracket is a fantastic space saver! This is perfect for my stand-up desk, and is a nice upgrade to my workstation.
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Reviewed in the United States on March 31, 2025

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