SKU: 91831231667

1984 - 2021 Kenworth C500, C550B, K100E, T400, T450, T600 And T800 Front Leaf Spring - 9 Leaves - 59-410

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Description

1984 - 2021 Kenworth C500, C550B, K100E, T400, T450, T600 And T800 Front Leaf Spring - 9 Leaves - 59-410*Diagram Spring May Differ From Actual Spring* Number of Leaves 9 Leaf Spring Width 4" A Leaf Spring Length: 32" B Leaf Spring Length: 32" C Leaf Spring Arch: 3 7 8" D Leaf Spring Pack Thickness: 5 1 2" Leaf Spring Capacity: 9,200 lbs. Leaf Spring OEM Number: K223 1134 Leaf Spring Eye Threaded Bushings: Front TB 68 Rear TB 68 Leaf Spring Material: 8 . 625, 1 . 499 Location Front Verify the OEM part number and measurements to confirm compatibility

  • *Diagram Spring May Differ From Actual Spring*
  • Number of Leaves - 9
  • Leaf Spring Width - 4"
  • A - Leaf Spring Length: 32"
  • B - Leaf Spring Length: 32"
  • C - Leaf Spring Arch: 3-7/8"
  • D - Leaf Spring Pack Thickness: 5-1/2"
  • Leaf Spring Capacity: 9,200 lbs.
  • Leaf Spring OEM Number: K223-1134
  • Leaf Spring Eye Threaded Bushings: Front TB-68 / Rear TB-68
  • Leaf Spring Material: 8/.625, 1/.499
  • 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 59-410 is the front leaf spring on Kenworth C500B, C550B, K100E Cab Over Engine, T400A, T400B, T450, T450B, T600A, T600B, T800 and T800B heavy duty trucks. The spring is 4" wide, is a 9 leaf spring and the capacity is 9,200 lbs. The OEM part number is K223-1134.


Models And Year Ranges:

Fits: 1988-2021 Front Kenworth C500B and C550B

Fits: 1984-2003 Front Kenworth K100E Cab Over Engine (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:
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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
SKU: 91831231667

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4.5 ★★★★★
Based on 27 reviews
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Verified Purchase
Molly Farrell
Lexington, US
★★★★★ 5
Love them!
Color: White-cooling Basic, Size: Queen(Pack of 2)
Love them! After 10 years with our MyPillows, they finally lost their fluff. The reviews I read of the MyPillows of today were not good; they didn’t have as much filling as they used to. These pillows remind me of how fluffy our new MyPillows were 10 years ago!! You sink right into them and can mush them however and they stay. These are way cheaper than the Coop and it’s the same concept; add or remove the filling as needed. The cooling side is a huge plus too! You won’t be disappointed with these pillows!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
N
Verified Purchase
Nicole Hoelting
West Palm Beach, US
★★★★★ 5
Finally sleeping through the night without waking up drenched
I was dealing with night sweats almost every night. Waking up overheated, flipping my pillow over constantly, just uncomfortable and restless. It was starting to mess with my sleep in a real way. Since switching to this cooling pillowcase (and pairing it with a cooling blanket), it’s been a completely different experience. I’m actually staying cool through the night and not waking up soaked or irritated. The fabric feels cool to the touch right away and doesn’t trap heat like a regular pillowcase. It’s smooth, comfortable, and still feels good after washing. Not stiff or weird like some “cooling” materials can be. Is it magic? No. But does it noticeably reduce overheating and help you sleep better? Absolutely. If you run hot at night or deal with night sweats, this is one of those small upgrades that makes a big difference. I wish I had bought it sooner.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
A
Verified Purchase
Amazing Sally
Dallas, US
★★★★★ 5
so far so good
I was surprised at this pair of pillow cases only because the material seemed impossible to be cooling - it's that weird polyester blend. So far I have not awoken feeling sweaty around my face and scalp. I don't recall what I originally paid but I think it is great value for money! If you are sensitive to out of the box smell, I washed mine first and it didn't impede on the efficacy of the cooling!
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Reviewed in the United States on April 28, 2026
D
Verified Purchase
Devin Hill
Carnegie, US
★★★★★ 5
It’s like sleeping on a beach in San Vito lo Capo
Italian voice: I’m a big meaty fella so I put off a lot of heat ya hear. These pillow cases have changed my life. One moment they’re hot and the next you flip them and you’re blasted with a blast of ice cool what it feels like to chew 5 gum feeling capeesh. I would reccomend these pillow cases to even my grandma. If ya wanta get a rest so good that it feels like ya been sleeping with the fishes get these pillow cases, they’re the real deal. Then stop at Pauline’s joint and grab a slice of pizza say Vinnie sent ya. Anyways I gotta go my wife’s cooking up a mean lasgna and we’re gonna watch the dodgers. Let me know how these treat ya I guarantee they will change your life. Vinnie out
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Reviewed in the United States on February 15, 2026
A
Verified Purchase
Amazon Customer
Port Orchard, US
★★★★★ 4
Soft "cooling" case.
Yes it is very cool when you lay on it. It doesn't stay cold though. Within a minute or 2 to whatever your temp is.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 25, 2025

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