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Ships within 48 hours · Estimated delivery Jul 4 - Jul 9
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Description
1984 - 2021 Kenworth C500, C550B, K100E, T400, T450, T600 And T800 Front Leaf Spring - 2 Leaves - 59-428Number of Leaves 2 Leaf Spring Width 4" A Leaf Spring Length: 32 1 8" B Leaf Spring Length: 32 1 8" C Leaf Spring Arch: 5 7 16" D Leaf Spring Pack Thickness: 2 15 16" Leaf Spring Capacity: 5,400 lbs. Leaf Spring OEM Number: HK48110 1440 Leaf Spring Eye Bushings: Front TB 68 Rear TB 68 Leaf Spring Material: Pad 1 . 394, 2 . 984 Full Taper, Pad 1 . 473 Location Front Verify the OEM part number and measurements to confirm compatibility before purchasing.
- Number of Leaves - 2
- Leaf Spring Width - 4"
- A - Leaf Spring Length: 32-1/8"
- B - Leaf Spring Length: 32-1/8"
- C - Leaf Spring Arch: 5-7/16"
- D - Leaf Spring Pack Thickness: 2-15/16"
- Leaf Spring Capacity: 5,400 lbs.
- Leaf Spring OEM Number: HK48110-1440
- Leaf Spring Eye Bushings: Front TB-68 / Rear TB-68
- Leaf Spring Material: Pad 1/.394, 2/.984 Full Taper, Pad 1/.473
- 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 59-428 is the front leaf spring on Kenworth C500, C550B, K100E (with set back axle), T400A, T400B, T450, T450B, T600A, T600B, T800 and T800B heavy duty trucks. The spring is 4" wide and is a 2 full taper leaf spring with 2 pads. The capacity of this spring is 6,000 lbs. The OEM part number is HK48110-1440.
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:
- Standard Shipping : 3-10 business days
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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]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 2377 reviews
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Product Reviews
★★★★★ 5
Great key board and worth the money
Color: Graphite, Style: Battery Powered, Pattern Name: Keyboard
I have had this key board for over two years. Still works great with awesome battery life. The feel and design of the key board is great. Feels like I am typing on my MacBook Pro. Easy to par with multiple computers. Every once in a while it will become disconnected to my main computer and I will power off and on to reconnect. I have not had any other issues and would definitely purchase again.
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Love this keyboard.
Color: Graphite, Style: Battery Powered, Pattern Name: Keyboard
It's much like their more expensive model that comes with backlighting. I don't need the backlighting on this one because it's for the office so I'm never typing in the dark. I also like that it just uses regular batteries so between that and the lack of backlighting, the batter life is expected to be phenomenal. Clean looking keyboard and a pleasant typing experience.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
★★★★★ 5
Perfect Work Keyboard
Color: Graphite, Style: Battery Powered, Pattern Name: Keyboard, Color: Graphite, Style: Battery Powered, Pattern Name: Keyboard
This keyboard is perfect and exactly what I needed. I wanted a higher quality wireless keyboard for work and this one is that plus some. Keys are not too loud but also not silent. The keyboard itself is thin but not too thin and has weight to it. Also love the ability to connect to other computers with the press of a button. I have a PC for work and Mac for personal use, it switches fast and easy without fail. It’s a little more of an upfront cost compared to others available but it’s worth it truly. Plus the Logi brand itself has gained my trust as all of my other tools (headset, mouse, and webcam) are all Logi and have been excellent. If you’re on the fence due to the price, just purchase and know you’ll never have to buy another keyboard again.
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Reviewed in the United States on August 15, 2025
★★★★★ 5
Great keyboard for my mother.
Color: Off White, Style: Battery Powered, Pattern Name: Keyboard, Color: Off White, Style: Battery Powered, Pattern Name: Keyboard
I wanted to move my mother away from corded keyboards so I gave her my old mouse and this keyboard. Functions well with a Linux machine although you have to pair any mice with it on a Windows or Mac computer. It's quite responsive and connects well. A valuable purchase that has survived some falls now. Very durable as long as you're not purposely trying to break it.
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Reviewed in the United States on December 30, 2025
★★★★★ 4
Good quality keyboard
Color: Graphite, Style: Battery Powered, Pattern Name: Keyboard
The Logitech Slim K950 Wireless Keyboard works great as a replacement for my old Logitech USB keyboard, but it's not perfect:
Pros: Logitech is a good brand that lasts a long time, very easy to connect via Bluetooth (ready to use in minutes) but also comes with a USB to connect manually; runs on two AAA batteries (have not had to replace yet in over a month); Slim profile with low-profile keys; no problems with the functions on the keyboard so far; it's a regular width keyboard with convenient number pad.
Cons: It is a bit pricey compared to some other Bluetooth keyboards; the volume keys are above the backspace bar and sometimes I hit those instead of backspace; the main issue for me is that it is supposed to have keys that are "quiet typing" - I don't like "clicky" keyboards and this one still clicks if I am typing fast or pressing hard. Not as much as other non-silent keyboards, but enough that I notice. That said, I tried a couple different "silent" keyboards and they really were not that much different, so maybe it's just me!
Overall this is a good keyboard and I would purchase Logitech again.
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Reviewed in the United States on October 2, 2025
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