1988 - 2021 Navistar International 9100-9400, Lonestar And Prostar Front Leaf Spring 55-1188

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Navistar International front leaf spring part number 55-1188.

  • *Diagram Spring May Differ From Actual Spring*
  • Number of Leaves - 3
  • Leaf Spring Width - 4"
  • A - Leaf Spring Length: 29"
  • B - Leaf Spring Length: 29"
  • C - Leaf Spring Arch: 2-3/8"
  • D - Leaf Spring Pack Thickness: 3-3/16"
  • Leaf Spring Capacity: 8,100 lbs.
  • Leaf Spring OEM Number: 1688926C91
  • Leaf Spring Eye Bushings: Front TB-26 / Rear TB26
  • Leaf Spring Material: 3/.999 Full Taper
  • Location - Front


Leaf spring 55-1188 is the front leaf spring for Navistar International 9100, 9100i, 9200, 9200i, 9400, 9400i and 9300. The spring is 4" wide, is a 3 leaf full taper spring and has a capacity of  8,100 lbs. The OEM part number is 1688926C91.

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Quality: Lasts longer. High-quality, durable parts that can withstand use and wear over time.Performance: Performs better. Parts that enhance and maintain the performance of you vehicle. Correct fit and function as expected.Value for Money: Cost with quality balanced. No better products at any price point.Brand Reputation: 30+ years of customer satisfaction.

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