2009 - 2021 Kenworth & Peterbilt T170-T370 And 325-348 Front Leaf Spring 59-610

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Kenworth and Peterbilt front leaf spring part number 59-610.

  • *Diagram Spring May Differ From Actual Spring*
  • Number of Leaves - 2 (PD/2)
  • Leaf Spring Width - 4"
  • A - Leaf Spring Length: 24-7/8"
  • B - Leaf Spring Length: 29-11/16"
  • C - Leaf Spring Arch: 6"
  • D - Leaf Spring Pack Thickness: 2"
  • Leaf Spring Capacity: 4,550 lbs.
  • Leaf Spring OEM Number: B816033
  • Leaf Spring Eye Bushings: Front RB-338 / Rear RB-338
  • Leaf Spring Material: PD/323 2/788 Full Taper
  • Location - Front


Leaf spring 59-610 is the front leaf spring on Kenworth T170, T270, T300 and T370 heavy duty trucks. Also fits Peterbilt 325, 330, 335, 337, 340 and 348 heavy duty trucks. The spring is 4" wide, is a 2 leaf spring with 1 pad and has a capacity of 4,550 lbs. The OEM part number is B816033.


Models And Year Ranges:

Fits: 2009-2021 Front Kenworth T170, T270, T300 and T370 (With 1-3/4" Eye With 5/8" Through Bolt Type Bushing)

Fits: 2009-2021 Front Peterbilt 325, 330, 335, 337, 340 and 348 (With 1-3/4" Eye With 5/8" Through Bolt Type Bushing)

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