SKU: 49126771420

2006 - 2022 Kenworth & Peterbilt T400-T880, W900B-W990 And 357-587 Front Leaf Spring - 2 Leaves - 59-550

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Description

2006 - 2022 Kenworth & Peterbilt T400-T880, W900B-W990 And 357-587 Front Leaf Spring - 2 Leaves - 59-550*Diagram Spring May Differ From Actual Spring* Number of Leaves 2 Leaf Spring Width 4" A Leaf Spring Length: 27 5 16" B Leaf Spring Length: 32 1 4" C Leaf Spring Arch: 6 1 16" D Leaf Spring Pack Thickness: 2. 31" Leaf Spring Capacity: 6,600 lbs. Leaf Spring OEM Number: B81 6013 001 Leaf Spring Eye Rubber Incased Bushings: Front RB 295 Rear RB 328 Leaf Spring Material: PD . 215 2 . 984 Location Front Alternate SKU: B816013001, B81 6013 004, B816031004,

 

  • *Diagram Spring May Differ From Actual Spring*
  • Number of Leaves - 2
  • Leaf Spring Width - 4"
  • A - Leaf Spring Length: 27-5/16"
  • B - Leaf Spring Length: 32-1/4"
  • C - Leaf Spring Arch: 6-1/16"
  • D - Leaf Spring Pack Thickness: 2.31"
  • Leaf Spring Capacity: 6,600 lbs.
  • Leaf Spring OEM Number: -B81-6013-001
  • Leaf Spring Eye Rubber Incased Bushings: Front RB-295 / Rear RB-328
  • Leaf Spring Material: PD/.215 2/.984
  • Location - Front
  • Alternate SKU: B816013001, B81-6013-004, B816031004, 59550


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

 

Leaf spring 59-550 is the front leaf spring on Kenworth W900B, W900L, W990, T400, T440, T450, T470, T600, T660, T680, T800 and T880. Also fits Peterbilt 365, 367, 384, 386, 388, 389, 567 and 587. The spring is 4" wide, is a 2 leaf spring and has a capacity of 6,600 lbs. The OEM part number is B81-6013-001. Replace in pairs.


Models And Year Ranges:

Fits: 2006-2021 Front Kenworth T400, T440, T450, T470, T600, T660, T680, T800 and T880 (12,000 lb. - 14,600 lb. Axles Only)

Fits: 2008-2022 Front Kenworth W900B and W900L (12,000 lb. - 14,600 lb. Axles Only)

Fits: 2019-2021 Front Kenworth W990 (12,000 lb. - 14,600 lb. Axles Only)

Fits: 2006-2021 Front Kenworth 365 and 367 (12,000 lb. - 14,600 lb. Axles Only)

Fits: 2006-2021 Front Kenworth 388 and 389 (12,000 lb. - 14,600 lb. Axles Only)

Fits: 2013-2021 Front Kenworth 567 (12,000 lb. - 14,600 lb. Axles Only)

Fits: 2012-2021 Front Kenworth 579 (12,000 lb. - 14,600 lb. Axles Only)

Fits: 2010- 2018 Front Kenworth 587 (12,000 lb. - 14,600 lb. Axles Only)

Fits: 2006-2015 Front Peterbilt: With 4" Wide Leaf Springs Except LCF; 384, 386 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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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]
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SKU: 49126771420

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Sebastian Monte
Waukegan, US
★★★★★ 3
Cheap and unstable
Size: 4 Panel, Color: Black, Size: 4 Panel, Color: Black
Although this has nothing to do with the product, it arrived a day later than previously stated. Making me have to create a makeshift room divider the day it was actually needed. When the product arrived it arrived in a box that showed no evidence of damage. Once opened, divider was found inside a plastic cover. Great protector for dust or scratching. The divider was fully assembled so there was nothing for me to do but remove it from packaging and use it where needed. After further inspection the divider was not only cheap and flimsy looking it was absolutely unstable. It would wobble and appears to have been assembled in a rush making some panels crooked. I noted significant damage to the bottom portion of some of the panels both front and back. It does not feel like an item worth the price. The color is as advertised and the product had no smell. The sizing was accurate.
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Reviewed in the United States on January 17, 2025
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Cuba, US
★★★★★ 5
Quality Product Easy to Use Awesome Privacy Great Price
Size: 4 Panel, Color: Black
I have Purchased 2 of these Room Dividers. One for my Nephew and One for my Son. They Both Say they are Sturdy and easy to setup and use. The Quality and Price are Great! Easy to setup already assembled and Very well made. I would recommend this Product
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Reviewed in the United States on August 1, 2025
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no body!
Boise, US
★★★★★ 5
Perfect fit
Size: Large, Color: (100) White / White / Black
Durable and comfortable. Size works well. Very soft with nice thickness for training. Fairly long lasting
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Reviewed in the United States on February 12, 2026
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Quick Reviews
New York, US
★★★★★ 5
Post-COVID Sock Hunt: Finally a Win
Size: Medium, Color: (001) Black / Black / White
Ever since COVID, I haven’t been able to find a pair of socks that hold up for more than a few months. Brands like UA, Adidas, and others seem to have cut corners—likely in response to inflation—by downgrading materials and labor rather than raising prices. The result? Socks that wear thin, rip easily, or lose shape fast. These, however, have been a pleasant surprise. I’ve been wearing them for a few weeks and so far, they’re holding strong. You can tell some cost-saving measures were still made—certain areas feel slightly thinner—but overall, the construction is solid. A key win: they stay on. These are ankle socks (not “no-shows”), and they hug the ankle securely. That’s a huge plus in a world where most post-COVID no-shows slide off halfway through the day. We may never get back to the pre-COVID quality standards without paying a premium, but for now, these are a reliable choice. Ratings: • No slipping: 10/10 • Price: 7/10 • Durability (so far): No pilling or loose threads — promising start.
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Reviewed in the United States on March 24, 2025
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Phoenix, US
★★★★★ 5
Great Quality and Stylish
Size: Large, Color: (001) Black / Black / White
Exactly what I was looking for. I don’t like socks that are no-show that your ankles rub on the shoe. These are taller than that but shorter than socks that go up and over the ankle. They’re comfortable, good quality, and pretty thick. They’re form fitting m, but not compression. I dint like compression socks, and these are tight, but not too tight.
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Reviewed in the United States on June 5, 2025

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