SKU: 6819377196

2002 - 2021 Navistar International 7300-7700, HV507-HV613, IC 3000 Bus Chassis, 8500 And 8600 Front Leaf Spring - 2 Leaves - 55-1242

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Description

2002 - 2021 Navistar International 7300-7700, HV507-HV613, IC 3000 Bus Chassis, 8500 And 8600 Front Leaf Spring - 2 Leaves - 55-1242*Diagram Spring May Differ From Actual Spring* Number of Leaves 2 (PD 2 2PD) Leaf Spring Width 4" A Leaf Spring Length: 25" B Leaf Spring Length: 29" C Leaf Spring Arch: 4 1 4" D Leaf Spring Pack Thickness: 2 5 8" Leaf Spring Capacity: 5,400 lbs. Leaf Spring OEM Number: 3533198C91 Leaf Spring Eye Bushings: Front RB 253 Rear RB 253 Leaf Spring Material: Pad 1 . 323, 2 . 788 Full Taper, Pad 2 . 323 Location Front Verify the OEM part number and

  • *Diagram Spring May Differ From Actual Spring*
  • Number of Leaves - 2 (PD/2/2PD)
  • Leaf Spring Width - 4"
  • A - Leaf Spring Length: 25"
  • B - Leaf Spring Length: 29"
  • C - Leaf Spring Arch: 4-1/4"
  • D - Leaf Spring Pack Thickness: 2-5/8"
  • Leaf Spring Capacity: 5,400 lbs.
  • Leaf Spring OEM Number: 3533198C91
  • Leaf Spring Eye Bushings: Front RB-253 / Rear RB-253
  • Leaf Spring Material: Pad 1/.323,  2/.788 Full Taper, Pad 2/.323 
  • Location - Front


Verify the OEM part number and measurements to confirm compatibility before purchasing. Need help? Visit: How to Identify a Leaf Spring.

 

Leaf spring 55-1242 is the front leaf spring on Navistar International 8500, 8600, IC 3000 Bus Chassis, 7300, 7400, 7500, 7600, 7700, HV513, HV607 and HV613. The spring is 4" wide, is a 2 full taper leaf spring with 3 pads and the capacity is 5,400 lbs. The OEM part number is 3533198C91.

Shipping Notes
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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.
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SKU: 6819377196

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4.9 ★★★★★
Based on 21 reviews
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Product Reviews
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Verified Purchase
D R Chapman
Cuba, US
★★★★★ 5
Good value
Style: 16.3 sqft（15 pcs）, Material Type: Aluminum 197 mil
Works well in installation but recommend an aluminum foil tape to go over all seams. Seems to work well as a heat insulator. Not sure about durability UNTILL we get some years under our belts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
S
Verified Purchase
shmoke
Carnegie, US
★★★★★ 3
Absolutely zero difference. Anyways, I have both doors full of the stuff. I'd pass if I were you.
Style: 8.7 sqft（8 pcs）, Material Type: Aluminum 197 mil
Not what I was thinking. I've used insulation like this that was composed of heavy material, this one is not. This product must be for boats or airplanes where weight is a primary consideration and noise is not a problem. This is too light to have an effect on vibration or road noise. Absolutely zero difference. Anyways, I have both front doors full of the stuff and I'd pass if I were you.
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Reviewed in the United States on May 20, 2025
R
Verified Purchase
Rebekah
Omaha, US
★★★★★ 5
Great in my trunk
Style: 16.3 sqft（15 pcs）, Material Type: Aluminum 197 mil, Style: 16.3 sqft（15 pcs）, Material Type: Aluminum 197 mil
Was almost enough to do my full trunk on my 2012 civic si. I have exhaust and a subwoofer that were making a lot of rattles and drones in the trunk. Took everything out and covered about 70% of everything including the wheel wells and the rear deck support, even put some under my spoiler and behind my license plate. Now, quieter ride and no vibration from the trunk inside OR outside the car even with bass cranked up. This is a great product and I would definitely recommend.
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Reviewed in the United States on March 7, 2026
J
Verified Purchase
JP
Alexandria, US
★★★★★ 5
Does the job well
Style: 37.1 sqft（34 pcs）, Material Type: Aluminum 197 mil
Really nice quality. There are strings woven into the top along the foil. Easy to work with. The backing peels off smooth and usually in one piece. Great value
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Reviewed in the United States on December 25, 2025
K
Verified Purchase
K.M
Chelsea, US
★★★★★ 5
Great and light!
Style: 30 pcs
Worked out great. Good stuff and sound deadens the vehicle without adding a ton of weight.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026

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