SKU: 31830718727

2004 - 2006 Kenworth T400-T880 Front Leaf Spring 59-512

Sale price$299.70 Regular price$333.00
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Description

2004 - 2006 Kenworth T400-T880 Front Leaf Spring 59-512*Diagram Spring May Differ From Actual Spring* Number of Leaves 3 (PD 3) Leaf Spring Width 4" A Leaf Spring Length: 27" B Leaf Spring Length: 32" C Leaf Spring Arch: 5 3 8" D Leaf Spring Pack Thickness: 3 1 2" Leaf Spring Capacity: 9,100 lbs. Leaf Spring OEM Number: HK48110 3091 Leaf Spring Eye Threaded Bushings: Front TB 81 Rear TB 81 Leaf Spring Material: Pad 1 . 315, 3 1. 024 Full Taper Location Front 16,000 lb. 24,000 lb. Axles Only Verify the OEM

  • *Diagram Spring May Differ From Actual Spring*
  • Number of Leaves - 3 (PD/3)
  • Leaf Spring Width - 4"
  • A - Leaf Spring Length: 27"
  • B - Leaf Spring Length: 32"
  • C - Leaf Spring Arch: 5-3/8"
  • D - Leaf Spring Pack Thickness: 3-1/2"
  • Leaf Spring Capacity: 9,100 lbs.
  • Leaf Spring OEM Number: HK48110-3091
  • Leaf Spring Eye Threaded Bushings: Front TB-81 / Rear TB-81
  • Leaf Spring Material: Pad 1/.315, 3/1.024 Full Taper
  • Location - Front
  • 16,000 lb. - 24,000 lb. Axles Only

 

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

 

Leaf Spring 59-512 is the front leaf spring on 2004 - 2006 Kenworth T400, T440, T450, T470, T600, T660, T680, T800 and T880. The spring is 4" wide, 3 leaf full taper spring with 1 pad. The capacity is 9,100 lb and the OEM part number HK48110-3091. Fits 16,000 through 24,000 axles. 

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 31830718727

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4.3 ★★★★★
Based on 26 reviews
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A
Verified Purchase
Amazon Customer
Louisville, US
★★★★★ 5
Nice Case & Keyboard
Color: Blue
Love this case with a keyboard. I like using the keyboard vs using one on the screen of iPad. And the keyboard has rechargeable batteries instead of having to buy batteries. And it protects my iPad.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
E
Verified Purchase
Eli Beltran
Belleville, US
★★★★★ 1
Beautiful, and everything I want it except that the keyboard keys didn’t work😭
Color: Light Pink
I searched and search for the right keyboard case for me. The most important thing for me was to be able to remove the iPad case itself from the whole case and keyboard, and this one was it. Unfortunately, when I started checking the keyboard a lot of The keys were not output in the correct symbol or letters. So defeats the whole purpose of having a keyboard. I returned it and asked for a replacement, thinking that the item was defected, but when I got the New replacement, it was the same thing so I tried to contact the seller, but there was no option to do that. Therefore, I had to return the second replacement keyboard and look for another keyboard cover.
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Reviewed in the United States on March 23, 2026
A
Verified Purchase
Annabelle wilson
Houston, US
★★★★★ 5
Quality and Functional
Color: Navy Blue, Color: Navy Blue
I was looking for a case that could rotate and includes a keyboard. I have the gen 5 Ipad Air and it fits just fine. The part that rotates is magnetic (pretty strong) so if i just want the part with the ipad, I can just take it off. Keyboard is magnetic and the touchpad is such a bonus. It was easy to connect and every key works (can also change light color). Im also really impressed with the quality of the case, its pretty thick and even the plastic is nice. The navy blue color is also super cute, wish they had a dark red color too.
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Reviewed in the United States on May 13, 2026
E
Verified Purchase
Ellary
Port Orchard, US
★★★★★ 5
ABSOLUTELY PERFECT - I LOVE THIS!!!
Color: Pink
I absolutely LOVE this case and the keyboard - it’s absolutely perfect in just about every way. If I had to get nit-picky and find something to give feedback on, I would say it is a bit heavy and it is a bit annoying that you have to move the keyboard forward when you want to use it and backward when you want to close up the case but I don’t care, I love it!
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Reviewed in the United States on March 12, 2026
K
Verified Purchase
Kyle K.
Louisville, US
★★★★★ 5
iPad case
Color: Navy Blue
Great case, functions well and the keyboard is a nice touch. Would recommend.
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Reviewed in the United States on June 3, 2026

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