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

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Navistar International front leaf spring part number 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


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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