1987 - 2012 Peterbilt & Kenworth 325-348, 357-385, 320, 520 And T170-T370 Front Leaf Spring 75-232
SKU: 45952578966

1987 - 2012 Peterbilt & Kenworth 325-348, 357-385, 320, 520 And T170-T370 Front Leaf Spring 75-232

Sale price$373.82 Regular price$415.35
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Description

1987 - 2012 Peterbilt & Kenworth 325-348, 357-385, 320, 520 And T170-T370 Front Leaf Spring 75-232*Diagram Spring May Differ From Actual Spring* Number of Leaves 4 (PD 3 1 1) Leaf Spring Width 4" A Leaf Spring Length: 32" B Leaf Spring Length: 32" C Leaf Spring Arch: 4 7 8" D Leaf Spring Pack Thickness: 6" Leaf Spring Capacity: 10,500 lbs. Leaf Spring OEM Number: HP48110 2860 Leaf Spring Eye Bushings: Front RNK Rear RNK Leaf Spring Material: Pad 4 . 323, 3 . 999, Second 1 1. 125, Third 1 1. 125 Location Front Verify the OEM part number and

  • *Diagram Spring May Differ From Actual Spring*
  • Number of Leaves - 4 (PD/3/1/1)
  • Leaf Spring Width - 4"
  • A - Leaf Spring Length: 32"
  • B - Leaf Spring Length: 32"
  • C - Leaf Spring Arch: 4-7/8"
  • D - Leaf Spring Pack Thickness: 6"
  • Leaf Spring Capacity: 10,500 lbs.
  • Leaf Spring OEM Number: HP48110-2860
  • Leaf Spring Eye Bushings: Front RNK / Rear RNK
  • Leaf Spring Material: Pad 4/.323, 3/.999, Second 1/1.125, Third  1/1.125
  • Location - Front


Verify the OEM part number and measurements to confirm compatibility before purchasing. Need help? Visit: How to Identify a Leaf Spring.

 

Leaf spring 75-232 is the front leaf spring on Peterbilt 325, 330, 335, 337, 340, 348, 357, 377, 377A/E, 385, 378, 379, 320 and 520 Low Cab Forward. Also fits Kenworth T170, T270, T300 and T370. The spring is 4" wide, is a 5 leaf full taper leaf spring with 1 pad and has a capacity of 10,500 lbs. The OEM part number is HP48110-2860.


Models And Year Ranges:

Fits: 1995-2009 Front Peterbilt 325, 330, 335, 337, 340 And 348

Fits: 1995-2007 Front Peterbilt 385

Fits: 1987-2007 Front Peterbilt 377, 377A/E And 378 ( With Set Back Axle)

Fits: 1987-2007 Front Peterbilt 357 And 379 (With Set Back Axle)

Fits: 1987-2012 Front Peterbilt 320 and 520 Low Cab Forward

Fits: 1994-2009 Front Kenworth T170, T270, T300 And T370

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Exchange/Return Notes
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SKU: 45952578966

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Based on 241 reviews
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Shopper
Charlottesville, US
★★★★★ 5
Good stuff !
Model: 36 SqFt(3.4 SqM), Model: 36 SqFt(3.4 SqM)
This is an excellent product. Easily moldable, cuttable with good scissors or razor knife, very sticky, works great. This pack was enough to do all 4 doors on a crew max truck, and I went wild on the fronts. I used 9 peices on each rear door which was just enough, and the rest on the fronts. I doubled up layers and even used some on the back of the door panels. If you follow the instructions and dont go wild you might even have extra left over. It works just like you would imagine. Without doing the entire cab there will still be road noise but this helped noise, better audio, no buzzing door panels, terrific improvement. It is kind of heavy, so extra weight is added to truck, but that really isnt a bad thing. It is noticable but in a good way. Get it. Use it.
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Reviewed in the United States on March 20, 2026
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Odin M Turner
New York, US
★★★★★ 4
Good product
Model: 36 SqFt(3.4 SqM)
Easy to roll out. Works great  Why did you pick this product vs others?: Fair price for the amount of coverage, good quality  Works well: Easy to install, rolls out great. Forms to contours well
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Reviewed in the United States on July 13, 2025
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BRIAN HEATH
Lowell, US
★★★★★ 5
Great product
Model: 36 SqFt(3.4 SqM)
I used this on the doors of a Toyota Tacoma, worked as it described. Reduced the road noise significantly.. Need to buy another box for the floor and roof of the truck..
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Reviewed in the United States on May 15, 2026
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TimtheK
Dallas, US
★★★★★ 5
Great product - Add foam product for complete solution
Model: 36 SqFt(3.4 SqM)
Used in two cars with speaker upgrades. Easy to install but get the roller for assured adhesion.removes "tinnyness" from large metal resonators. Use with foam absorptive material for a complete system.
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Reviewed in the United States on April 14, 2026
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TitothePinkTorpedo
Alexandria, US
★★★★★ 5
Great Product for noise reduction in Auto Use.
Model: 36 SqFt(3.4 SqM)
I use this on many builds to dampen the metal echo in cars, vans, and trucks. Just one sheet in the center of a body panel is a huge difference maker. You can also cover the entire surface and get added insulation value. The noise is greatly depleted and it's easy to install with a roller tool. Looks Great when done. Good Product I will use again!
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Reviewed in the United States on December 29, 2025

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