SKU: 75379505389

1982 - 2008 Kenworth W900B And W900L Front Leaf Spring - 4 Leaves - 59-440

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Description

1982 - 2008 Kenworth W900B And W900L Front Leaf Spring - 4 Leaves - 59-440Number of Leaves 4 (PD 4 SHOCK EYE) Leaf Spring Width 4" A Leaf Spring Length: 27 1 4" B Leaf Spring Length: 27 1 4" C Leaf Spring Arch: 5 7 8" D Leaf Spring Pack Thickness: 3 11 16" Leaf Spring Capacity: 5,900 lbs. Leaf Spring OEM Number: K223 1273 30 Leaf Spring Eye Bushings: Front TB 68 Rear TB 68 Leaf Spring Material: Pad 1 . 499, 4 . 625 Full Taper, Shock Eye 1 . 499 Location Front Shock Eye Facing Opposite Of Wrapper Verify the OEM part number

  • Number of Leaves - 4 (PD/4/SHOCK EYE)
  • Leaf Spring Width - 4"
  • A - Leaf Spring Length: 27-1/4"
  • B - Leaf Spring Length: 27-1/4"
  • C - Leaf Spring Arch: 5-7/8"
  • D - Leaf Spring Pack Thickness: 3-11/16"
  • Leaf Spring Capacity: 5,900 lbs.
  • Leaf Spring OEM Number: K223-1273-30
  • Leaf Spring Eye Bushings: Front TB-68 / Rear TB-68
  • Leaf Spring Material: Pad 1/.499, 4/.625 Full Taper, Shock Eye 1/.499 
  • Location - Front
  • Shock Eye Facing Opposite Of Wrapper

 

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

 

Leaf spring 59-440 is the front leaf spring on 1982 - 2008 Kenworth W900B and W900L heavy duty trucks. The spring is 4" wide and is a 4 leaf full taper spring with 1 pad and a shock eye facing opposite of wrapper. The capacity is 5,900 lbs. The OEM part number is K223-1273-30.

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SKU: 75379505389

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4.7 ★★★★★
Based on 9 reviews
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Verified Purchase
Finngirl
Dallas, US
★★★★★ 5
Good quality, smooth feel
I got these briefs so recently that have washed just one pair so far. First off, these are very comfortable, the material is soft & bordering silky, good quality sewing. Wash well and minimal if any shrinkage. They do come a bit wrinkled from the dryer but hey, these are underwear and will go on smoothly. If it were a t-shirt, I would look sloppy. I feel the sizing is accurate. No rolling and these don't announce themselves under clothing. Planning on getting more of these boxers and replacing my old panties.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
S
Verified Purchase
Skurtzo
Charlottesville, US
★★★★★ 4
A little snug on the thighs
Size: Medium, Color: Multicoloured G (5-pack)
Super comfy, soft and thin. For reference, I'm 5'6", 135, athletic build. I bought medium. I almost returned them because I thought they were a bit too snug on my thighs, and my thighs are not large at all. I was concerned about panty lines under snug clothing. But, because they're thin, I figured they would probably stretch, so I kept them. So far, I've only worn them under a night shirt, but they're super comfortable and they dont ride up at all. Very nice, but if your thighs are a little thick, you probably won't like them.
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Reviewed in the United States on August 29, 2025
S
Verified Purchase
Shanna
West Palm Beach, US
★★★★★ 5
Functional + Sexy
Size: Small, Color: Multicoloured E-(5-pack), Size: Small, Color: Multicoloured E-(5-pack)
Not only do these feel good, my husband can’t keep his hands off me. They fit so good and are soft. I change into these to sleep but also just use them as shorts to wear around the house. They’re comfortable and don’t slide around. I got a size small and I’m 100lbs.
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Reviewed in the United States on April 13, 2026
C
Verified Purchase
ClairY
Lake Worth, US
★★★★★ 5
Finally!
Size: X-Large, Color: All Black D (5-pack)
Finally, comfortable underwear that don’t end up giving me a wedgie. I have a round booty and most cuts of underwear end up shifting as I walk and sit. The hem of the underwear comes right under my cheeks and the lightweight material ensures there’s no panty line and no shifting to where I don’t want them! I’m definitely purchasing more.
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Reviewed in the United States on May 17, 2026
A
Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 3
Ehh
Size: Medium, Color: Multicoloured E-(5-pack)
Very thin, still comfy but very thin material. Super soft though. I've worn and washed and they have held up but I won't be repurchasing bc these are so thin
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026

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