1987 - 2006 Navistar International 1000, 2000, 4000 and 7000 Front Leaf Spring 55-148

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Navistar International truck front leaf spring part number 55-148.

  • * Diagram Spring May Differ From Actual Spring*
  • Number of Leaves - 7 (2PD/7)
  • Leaf Spring Width - 4"
  • A - Leaf Spring Length: 25"
  • B - Leaf Spring Length: 29"
  • C - Leaf Spring Arch: 4-7/8"
  • D - Leaf Spring Pack Thickness: 3-7/8"
  • Leaf Spring Capacity: 5,350 lbs.
  • Leaf Spring OEM Number: 1661469C91
  • Leaf Spring Eye Bushings: Front RNK / Rear RNK
  • Leaf Spring Material: Pad 2/.447, 7/.423
  • Location - Front
  • 9,000 lb. - 20,000 lb. Axles Only


Leaf spring 55-148 is the front leaf spring for 1987 - 2006 Navistar International 1000, 2000, 4000 and 7000 heavy duty trucks. The spring is 4" wide, is a 7 leaf spring with 2 pads and has a capacity of 5,350 lbs. The OEM part number is 1661469C91.

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