SKU: 56854915430

XDP Stock Replacement Harmonic Dampener 11-16 GM 6.6L Duramax

Sale price$314.55 Regular price$349.50
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

XDP Stock Replacement Harmonic Dampener 11-16 GM 6.6L DuramaxHas your GM truck not been running right these past thousand miles? With high mileage diesel trucks, sometimes we expect a less than smooth ride out of it but it doesn't have to be that way. Replace the worn factory balancer on your GM 6. 6L Duramax with the XDP Premium Balancer Series Stock Replacement Harmonic Balancer XD708. Designed as a direct fit OE style replacement, the XD708 helps absorb harmful crankshaft vibrations that can lead to

Has your GM truck not been running right these past thousand miles? With high mileage diesel trucks, sometimes we expect a less than smooth ride out of it but it doesn't have to be that way. Replace the worn factory balancer on your GM 6.6L Duramax with the XDP Premium Balancer Series Stock Replacement Harmonic Balancer XD708. Designed as a direct-fit OE-style replacement, the XD708 helps absorb harmful crankshaft vibrations that can lead to premature wear on critical engine components such as the crankshaft, main bearings, timing components, and accessory drive system.

The harmonic balancer, also known as a crankshaft vibration damper, plays a vital role in reducing torsional vibration created during combustion. Over time, the factory balancer's rubber isolator can deteriorate, crack, or separate, resulting in increased engine vibration, belt issues, and potential engine damage. The XDP XD708 is built with spheroidal graphite cast iron and features inserted and pressure-bonded rubber for exceptional durability and reliable vibration control under stock and moderately upgraded applications.

Whether you're restoring a daily-driven truck, towing heavy loads, or maintaining your Duramax for long-term reliability, the XD708 offers premium construction and OE-quality fitment you can trust. Product listings identify this balancer as a direct replacement for GM 6.6L Duramax engines.

When do I need to replace my harmonic balancer/dampener?
The dampener on your truck dampens (duh) torsional vibrations generated by the crankshaft, protecting internal engine components and improving smoothness. If your dampener is going out you will notice cracked rubber, wobbling at idle, unusual engine vibration, belt noise, and timing issues. Sometimes it can feel like the entire truck is going to fall apart but with this easy fix you can get it running right again!

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: 56854915430

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4.8 ★★★★★
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C
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Charles C
San Leandro, US
★★★★★ 5
Great looking and easy to install.
Size: 6 pairs
These 24K gold-plated banana adapter connectors have proven to be an excellent choice for my outdoor speakers, providing a clean and seamless installation. The quality of these banana plugs is outstanding. The 24K gold plating not only adds a touch of elegance but also ensures optimal conductivity and corrosion resistance. I appreciate the attention to detail in the design, which allows for a secure and reliable connection between the speaker wire and the speakers themselves. Installation was a breeze. The plugs fit snugly into the speaker wire, providing a secure connection that minimizes signal loss. The process was straightforward and hassle-free, allowing me to set up my outdoor speakers quickly and efficiently.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 29, 2023
J
Verified Purchase
Jerry Weisenstein
Waukegan, US
★★★★★ 5
Very nice connection.
Size: 12 pairs
The banana connectors are great, I don’t know why I haven’t used them before. Very easy to install. I cut the wires and started fresh.
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Reviewed in the United States on January 21, 2026
T
Verified Purchase
Tyler Hogue
New York, US
★★★★★ 4
Great product but screws are annoying
Size: 6 pairs
These 24K gold-plated banana plugs are a solid choice if you’re looking for an easy and reliable way to connect your speaker wire. The connectors feel sturdy, and the gold plating gives them a clean, professional look while also helping prevent corrosion. Installation was straightforward — the wire slots fit snugly, and once tightened down, the connection feels secure. I used them for both my home theater and stereo setup, and the sound quality is clear with no noticeable interference or loss. The pack includes 6 pairs (12 plugs), which is plenty for most speaker setups, and they fit my receiver and speaker terminals perfectly. My only small complaint is that the screws could be a bit tighter or smoother when clamping the wire — you just need to make sure they’re seated properly to get the best hold. Still, once installed, they stay firmly in place.
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Reviewed in the United States on October 21, 2025
M
Verified Purchase
Matan Boujnah
Louisville, US
★★★★★ 5
Excellent product
Size: 6 pairs
Excellent product
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Reviewed in the United States on May 27, 2026
K
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Kuriakose
Carnegie, US
★★★★★ 5
Works great with all speaker wires
Size: 6 pairs
It works pretty well with standard and thin speaker wires. It makes so much easier to plug and unplug speaker wires. Color coded makes it easier for future. Banana plugs are worth. Double screws ensure wires remain securely attached. Screws are bit too tiny and had to run to the store to get one of those fine tip screw driver though.
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Reviewed in the United States on January 26, 2026

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