2002 - 2021 Navistar International 7300-7700, HV507-HV613, IC 3000 Bus Chassis, 8500 And 8600  Front Leaf Spring - 2 Leaves - 55-1240
SKU: 98447650050

2002 - 2021 Navistar International 7300-7700, HV507-HV613, IC 3000 Bus Chassis, 8500 And 8600 Front Leaf Spring - 2 Leaves - 55-1240

Sale price$104.62 Regular price$116.25
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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 - 55-1240*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 3 8" D Leaf Spring Pack Thickness: 2 5 8" Leaf Spring Capacity: 4,500 lbs. Leaf Spring OEM Number: 3533197C91 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: 4-3/8"
  • D - Leaf Spring Pack Thickness: 2-5/8"
  • Leaf Spring Capacity: 4,500 lbs.
  • Leaf Spring OEM Number: 3533197C91
  • 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 55-1240 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 has a 4,500 lb. capacity. The OEM part number is 3533197C91.


Models And Year Ranges:

Fits: 2002-2021 Front Navistar International 7300, 7400, 7500, 7600, 7700, HV513, HV607 and HV613 (10,000 lb. -14,000 lb. Non Driving Axles Only)

Fits: Front Navistar International IC 3000 Bus Chassis (10,000 lb. -14,000 lb. Axles Only)

Fits: 2002-2006 Front Navistar International 8500 And 8600: Transtar

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SKU: 98447650050

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Carb was beautiful once I got it tune in, cranks great runs smooth I would buy it again if needed
Lowell, US
★★★★★ 5
For motorcycles
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Great stuff, good price
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Reviewed in the United States on April 25, 2026
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JNL
Port Orchard, US
★★★★★ 5
The best lower unit gear oil I have used
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
I have been boating my whole life, this is by far the best gear oil. I use this in my Johnson 115 even though this is technically made by Mercury. I seem to get less if any water intrusion into my gearcase with this oil. If there is any, the oil emulsifies the water and continues to protect the gears. I have had better luck with this than Pennzoil marine or others. Highly recommend. It is a blue color and easy to drain and fill.
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Reviewed in the United States on March 23, 2026
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Debra
Cuba, US
★★★★★ 5
Great
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Great lube for the boat
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Reviewed in the United States on May 19, 2026
J
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Joshua Murray
Bozeman, US
★★★★★ 5
recommend
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
great price
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Reviewed in the United States on May 22, 2026
C
Verified Purchase
Christopher C.
Battle Creek, US
★★★★★ 4
Does not come with a pump.
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
The Good: Changing the fluid in the lower unit is a very easy DIY job. This can save you hundreds of dollars each year by doing it yourself. The Bad: You need a special pump to change the oil, and sometimes it comes with the gear lube. Unfortunately this product did not come with it. Luckily my neighbor had an extra one from changing the lube a different boat laying around and was able to use that. The Ugly: If you have to go get the pump, that could cost a few extra dollar but is just an extra nuisance. The pumps are interchangable but you just need to clean it between uses (DON'T MIX DIFFERENT OIL BRANDS)
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Reviewed in the United States on October 28, 2025

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