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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
1978 - 1988 Navistar International & Fire Apparatus S Series 2200-2600 Front Leaf Spring - 11 Leaves - 55-944*Diagram Spring May Differ From Actual Spring* Number of Leaves 11 Leaf Spring Width 4" A Leaf Spring Length: 25" B Leaf Spring Length: 29" C Leaf Spring Arch: 4" D Leaf Spring Pack Thickness: 5 1 2" Leaf Spring Capacity: 9,100 lbs. Leaf Spring OEM Number: 533563C91 Leaf Spring Eye Bushings: Front RNK Rear RNK Leaf Spring Material: 11 . 499 Location Front Verify the OEM part number and measurements to confirm compatibility before purchasing. Need
- *Diagram Spring May Differ From Actual Spring*
- Number of Leaves - 11
- Leaf Spring Width - 4"
- A - Leaf Spring Length: 25"
- B - Leaf Spring Length: 29"
- C - Leaf Spring Arch: 4"
- D - Leaf Spring Pack Thickness: 5-1/2"
- Leaf Spring Capacity: 9,100 lbs.
- Leaf Spring OEM Number: 533563C91
- Leaf Spring Eye Bushings: Front RNK / Rear RNK
- Leaf Spring Material: 11/.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 55-944 is the front leaf spring on 1978-1988 Navistar International S Series 2200 through 2600. Also fits Fire Apparatus Emergency One. Fits 16,000 lb. through 20,000 lb. axles only. The spring is 4" wide, is a 11 leaf spring and has a capacity of 9,100 lbs. The OEM part number is 533563C91.
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Exchange/Return Notes
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4.6 ★★★★★
Based on 2273 reviews
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Product Reviews
★★★★★ 4
Comfortable and Supportive, but Adjust the Filling
Color: White-cooling Basic, Size: Queen(Pack of 2), Color: White-cooling Basic, Size: Queen(Pack of 2)
I’m very happy with this pillow. The size is big and it feels soft while still providing good support, perfect for midnight scrolling on TikTok.
One thing to keep in mind is that it can feel a little too tall if you use all of the filling that comes with it. The good news is that you can easily adjust the amount of filling to find the height that works best for your sleeping position. Once I customized it, it was much more comfortable.
Overall, great quality, comfortable, and worth the purchase.
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Reviewed in the United States on June 3, 2026
★★★★★ 5
BEST PILLOWS EVER!!!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I am very picky with my pillows because I have a bad neck and I can never seem to find a good pillow. But I tried this pillow because it had everything I was looking for and the price was great! You get two of them and they are absolutely awesome.! normally I would need to lay on two pillows to try and get comfortable but with these pillows I just lay on one and I wake up with no neck pain. They really have a nice cooling effect. They actually puff up immediately after opening them. All you have to do is just shake them up and the pillow just puffs straight up.. It comes with extra cushioning if you want it to make it firmer and if you don’t want it as firm as it is, you can actually take some out. It really is such a beautiful pillow. It’s perfect in every way to me being such a picky pillow person.
You just lay your head down on it and it forms around your neck and your head and when you get up, it goes right back to its normal form. It doesn’t get flat and I love it. I completely recommend this to anyone who is a person who has a hard time finding a really good pillow.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Top of the line, best pillows Ive ever had
Color: White-cooling Basic, Size: Queen(Pack of 2)
These pillows are top of the line! I bought them in 2024 and they are still fluffy. When they lose a little fluff, you just punch em around a little bit and voila, like new again. They have kept their shape cery well and do great for cooling. I haven't had to add more filling yet either. I just laid my head on one and thought, I need to do a review cause everytime i lay on these pillows its like clouds. My head is heavy and this is relief :-D
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Reviewed in the United States on May 21, 2026
★★★★★ 3
Weird smell
Color: White-cooling Basic, Size: Queen(Pack of 2)
The pillows are great for someone looking for something cool and comfortable. We loved them so much that we bought a second pair. However, we were seriously disappointed with the odor of our last purchase. They give off a strong and indescribable chemical/burning plastic smell so nauseating that it’s difficult to sleep with. We’re hoping this issue will resolve with a couple more washes of the pillow cases, but am worried the source is the stuffing itself.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
helped treat my sore neck
Color: White-cooling Basic, Size: Camping Pillow(Pack of 1)
This pillow — after dialing in the right amount of shredded foam — has greatly helped my sore neck. Initially, I had to remove some foam. Then I gradually added foam until it reached optimum comfort and support.
It is also CPAP-friendly — especially when I position my head near the pillow's edge. (I am a left-side sleeper.)
I like the travel size because I use a bulky hugging pillow to ease stress on my shoulder and elbow. That makes my side of the bed feel cramped if using a larger head pillow. A smaller pillow is easy to flip end-to-end in the middle of the night.
I have spent lots of money on pillows over the years, but this is the best I've ever had for relieving [1] neck pain and [2] CPAP mask seal problems. Very comfortable, supportive, and affordable.
I did not notice any unpleasant smell — and I am usually sensitive to that kind of thing.
Would highly recommend.
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Reviewed in the United States on May 7, 2026