1978 - 1988 Navistar International S Series 1400-2100 and 2275-2675 Front Leaf Spring - 9 Leaves - 55-856

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Navistar international front leaf spring part number 55-856.

  • Number of Leaves - 9
  • 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: 4"
  • Leaf Spring Capacity: 6,350 lbs.
  • Leaf Spring OEM Number: 471267C91
  • Leaf Spring Eye Bushings: Front NJK / Rear NJK
  • Leaf Spring Material: 9/.447 
  • Location - Front
  • First Design


Leaf spring 55-856 is the front leaf spring on 1978-1988 Navistar International S Series 1400-2100 and 2275-2675. Fits 9,000 lb through 14,000 lb axles only. The spring is 4" wide, is a 9 leaf spring and has a capacity of 6,350 lbs. The OEM part number is 471267C91.

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