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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
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Description
Flexible Hose Assembly 3913759 for Cummins 3.9/4BT/6BT/6B5.9/6C8.3/B4.5/ISB/QSB Engines, Hyundai HL720-3Replacement part number: 3913759, 3903658, 3909546, 3918556 Fit for Cummins Engine: 4B3. 9, 6B5. 9, 6C8. 3, B3. 3, B4. 5, 4BT, 6BT, ISB CM550, ISB6. 7 CM2250, ISB6. 7 CM2350 B101, ISBE CM800, NH NT 855, QSB3. 9 30 CM550, QSB4. 5 30 CM550 Application: Fit for Hyundai Wheel Loader: HL720 3, HL730 3, HL730 7, HL730TM 3, HL730TM 7, HL7303C, HL730TM3C, HL730TM7 Fit for Hyundai Dozer: H80 LGP
Replacement part number:
3913759, 3903658, 3909546, 3918556Fit for Cummins Engine:
4B3.9, 6B5.9, 6C8.3, B3.3, B4.5, 4BT, 6BT, ISB CM550, ISB6.7 CM2250, ISB6.7 CM2350 B101, ISBE CM800, NH/NT 855, QSB3.9 30 CM550, QSB4.5 30 CM550
Application:
Fit for Hyundai Wheel Loader: HL720-3, HL730-3, HL730-7, HL730TM-3, HL730TM-7, HL7303C, HL730TM3C, HL730TM7
Fit for Hyundai Dozer: H80/LGP
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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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
4.7 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 4
Good product
Model: 36 SqFt(3.4 SqM)
Easy to roll out. Works great
Why did you pick this product vs others?:
Fair price for the amount of coverage, good quality
Works well:
Easy to install, rolls out great. Forms to contours well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 13, 2025
★★★★★ 5
Great product
Model: 36 SqFt(3.4 SqM)
I used this on the doors of a Toyota Tacoma, worked as it described. Reduced the road noise significantly.. Need to buy another box for the floor and roof of the truck..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
★★★★★ 5
Great product - Add foam product for complete solution
Model: 36 SqFt(3.4 SqM)
Used in two cars with speaker upgrades. Easy to install but get the roller for assured adhesion.removes "tinnyness" from large metal resonators. Use with foam absorptive material for a complete system.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 5
Great Product for noise reduction in Auto Use.
Model: 36 SqFt(3.4 SqM)
I use this on many builds to dampen the metal echo in cars, vans, and trucks. Just one sheet in the center of a body panel is a huge difference maker. You can also cover the entire surface and get added insulation value. The noise is greatly depleted and it's easy to install with a roller tool. Looks Great when done. Good Product I will use again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 29, 2025
★★★★★ 5
Makes For Quiet Rides
Model: 10 SqFt(0.95 SqM)
Comparable quality and performance to name brand competitor. It sticks on strong, easy to apply, and does make a difference in sound reduction. Turn your hollow shell sounding vehicle panels into solid sounding walls.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
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