SKU: 9173429727

1984 - 2021 Kenworth C500, C550B, K100E, T400, T450, T600 And T800 Heavy Duty Front Leaf Spring 59-400HD

Sale price$217.97 Regular price$242.19
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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25

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Description

1984 - 2021 Kenworth C500, C550B, K100E, T400, T450, T600 And T800 Heavy Duty Front Leaf Spring 59-400HDNumber of Leaves 3 Leaf Spring Width 4" A Leaf Spring Length: 32" B Leaf Spring Length: 32" C Leaf Spring Arch: 4 15 16" D Leaf Spring Pack Thickness: 3 5 16" Leaf Spring Capacity: 8,750 lbs. Leaf Spring OEM Number: Replaces K223 1073 Leaf Spring Eye Threaded Bushings: Front TB 68 Rear TB 68 Leaf Spring Material: 4 . 788 Full Taper Location Front Verify the OEM part number and measurements to confirm compatibility before purchasing. Need help? Visit:

  • Number of Leaves - 3
  • Leaf Spring Width - 4"
  • A - Leaf Spring Length: 32"
  • B - Leaf Spring Length: 32"
  • C - Leaf Spring Arch: 4-15/16"
  • D - Leaf Spring Pack Thickness: 3-5/16"
  • Leaf Spring Capacity: 8,750 lbs.
  • Leaf Spring OEM Number: Replaces K223-1073
  • Leaf Spring Eye Threaded Bushings: Front TB-68 / Rear TB-68
  • Leaf Spring Material: 4/.788 Full Taper
  • 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 59-400HD is the front heavy duty leaf spring on Kenworth C500, C550B, K100E (with set back axle), T400A, T400B, T450, T450B, T600A, T600B, T800 and T800B trucks. The spring is 4" wide, is a 4 full taper leaf spring and has a capacity of 8,750 lbs. Replaces OEM part number K223-1073.


Models And Year Ranges:

Fits: 1988-2021 Front Kenworth C550 and C550B

Fits: 1984-2003 Front Kenworth K100E (With Set Back Axle)

Fits: 1988-2003 Front Kenworth T400A, T400B, T450 and T450B

Fits: 1985-2004 Front Kenworth T600A, T600B, T800 and T800B

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 9173429727

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★★★★★ 4
Great Shirt, but a bit Heavy
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Very comfortable shirt and good quality. My only gripe is that the material is a bit heavier than I'd like.
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Reviewed in the United States on March 19, 2026
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Travis bowers
Battle Creek, US
★★★★★ 5
Perfect
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Quality is amazing, soft, comfortable and is light in weight. Fit is perfect for my frame and neck, love the style and was purchased at a good price.
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Reviewed in the United States on January 30, 2026
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Michael Vavra
Houston, US
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Mock T-shirt
Size: Large, Color: White
Fit really well, liked the material.
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Donald I Clarke
Cuba, US
★★★★★ 3
Loose fitting neck, not snug.
Size: XX-Large, Color: Dark Blue
I am 6’4” weigh @ 230 lbs and ordered a 2XL. My dress shirt neck size is 17 inches. If you’re happy with a very loose fitting around your neck, then you’ll be ok with this mock turtleneck shirt. I ordered thinking it would be a snug fit around the neck size, not hanging down @ one inch or more in the front.
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Reviewed in the United States on October 30, 2025
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Christian Howell
Fort Morgan, US
★★★★★ 5
Great for warm weather
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