SKU: 62923130299

XDP Stock Replacement Harmonic Dampener 01-05 GM 6.6L Duramax LB7/LLY

Sale price$209.22 Regular price$232.47
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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

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Description

XDP Stock Replacement Harmonic Dampener 01-05 GM 6.6L Duramax LB7/LLYDoes your Silverado or Sierra feel like your driving a grain truck sometimes? 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 Dampener XD709. Designed as a direct fit OE style replacement, the XD709 helps absorb harmful crankshaft vibrations that can lead

Does your Silverado or Sierra feel like your driving a grain truck sometimes? 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 Dampener XD709. Designed as a direct-fit OE-style replacement, the XD709 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 dampener/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 XD709 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 XD709 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 smooth again!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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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: 62923130299

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OCP
Waukegan, US
★★★★★ 5
Exactly who you see on the picture
My daughter uses it wonderfully, it's super spacious and comfortable
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Reviewed in the United States on August 11, 2025
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Cheyenne price
Cuba, US
★★★★★ 5
Love this bag but the straps always adjust and loosen
I love this mini backpack purse. It’s soft and lightweight and it’s cuter than I thought it would be. The extra pockets help keep things organized and I like to keep my debit cards in the back pocket so I don’t have to open the whole bag and dig around for my card. The only thing I don’t like is the straps slide and adjusts especially if I grab it by the strap so I always have to slide the buckle back up to shorten the strap. I’ve thought about putting a small zip tie or something to tighten the strap and hopefully it would stay in place.
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Reviewed in the United States on January 25, 2025
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Rupa D.
Belleville, US
★★★★★ 5
Excellent quality
Great quality, just as shown in pic
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Reviewed in the United States on December 3, 2025
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Benitez22@
Houston, US
★★★★★ 5
Divina para niñas y mujer
Super practica y comoda
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Reviewed in the United States on December 23, 2025
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Sarak81
Omaha, US
★★★★★ 5
Beautiful
Size: 9, Color: Lavender
So pretty! These were also comfortable and look exactly as pictured!
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Reviewed in the United States on October 3, 2025

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