SKU: 45749342120

1981-2021 Navistar International & Caterpillar Paystar 5000, HX And 5870 Front Leaf Spring 55-976

$268.88 $298.75
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

1981-2021 Navistar International & Caterpillar Paystar 5000, HX And 5870 Front Leaf Spring 55-976* Diagram May Differ From Actual Spring* Number of Leaves 10 Leaf Spring Width 4" A Leaf Spring Length: 26 1 2" B Leaf Spring Length: 27" C Leaf Spring Arch: 4" D Leaf Spring Pack Thickness: 5 1 4" Leaf Spring Capacity: 10,600 lbs. Leaf Spring OEM Number: 1606839C91 Leaf Spring Eye Threaded Bushings: Front TB 26 Rear TB 26 Leaf Spring Material: 10 527 Location Front Verify the OEM part number and measurements to confirm compatibility before

  • * Diagram May Differ From Actual Spring*
  • Number of Leaves - 10
  • Leaf Spring Width - 4"
  • A - Leaf Spring Length: 26-1/2"
  • B - Leaf Spring Length: 27"
  • C - Leaf Spring Arch: 4"
  • D - Leaf Spring Pack Thickness: 5-1/4"
  • Leaf Spring Capacity: 10,600 lbs.
  • Leaf Spring OEM Number: 1606839C91
  • Leaf Spring Eye Threaded Bushings: Front TB-26 / Rear TB-26
  • Leaf Spring Material: 10/527
  • 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 55-976 is the front leaf spring for Navistar International Paystar 5000, HX615, HX620, COF6870 (6X4 and 6x6) and Caterpillar CT660 heavy duty trucks. The spring is 4" wide, is a 10 leaf spring and the capacity of the spring is 10,600 lbs. The OEM part number is 1606839C91.


Vehicle Models And Year Ranges:

Fits: From 1976 Front Navistar/International Paystar 5000 Series

Fits: 2016-2021 Front Navistar/International HX615 and HX620 (With Set Back Axle)

Fits: 1981-1986 Front Navistar/International COF6870 (6x4 and 6x6) (With Single Steer Axles)

Fits: 2012-2017 Front Caterpillar CT660

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: 45749342120

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4.2 ★★★★★
Based on 20 reviews
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Verified Purchase
customer
Phoenix, US
★★★★★ 4
Good pillows; wear a mask when fluffing and airing out
Color: Memory Pillow, Size: Standard
Searched everywhere for comfortable pillows, finally found this set. Perfect density and firmness, very comfortable. Downside is that they were covered in some type of white powder which dispersed as I was fluffing them up. Fiberglass, maybe? I recommend customers fluff and air them outside before use, and wear a mask. Pillows had an industrial smell, which dissipated after 20 minutes in the fresh air.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2025
C
Verified Purchase
Christie Caviness
Lake Worth, US
★★★★★ 5
Great pillows
Color: Black(4pack), Size: Standard
These are absolutely great and them being cooling pillows is a big plus for someone who has hot flashes at night. They are very comfortable and they are great support for any position sleeper. These pillows are durable and the material comfortable and soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
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Verified Purchase
Grace Phelps
Dallas, US
★★★★★ 5
Soft pillows
Color: Grey, Size: Standard
Good size pillows. Very comfortable. Soft pillow and not so hard to lay on. It’s not too bulky or too big.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
A
Verified Purchase
Andrew
Phoenix, US
★★★★★ 3
They are using different/cheaper shredded foam then they were 1 year ago
Color: Memory Pillow, Size: Standard, Color: Memory Pillow, Size: Standard
The shredded foam used last year was really nice and soft and even firm to a point where your head is supported perfectly while you sleep. now the 2 extra pillows I received this weekend have completely different shredded foam which seems to be cheaper. Also when you unzip the pillow cover and get to the part where you can unzip the other cover where the foam is no longer is there. so they are using cheaper shredded foam and a cheaper cover to where the foam is and you can no longer unzip the second cover to see the foam. but I can easily tell that they are using different and cheaper foam which isn't true memory foam. their new blend is too fluffy and the pillows are floppy and too soft. the old ones i bought 1 year ago are heavy pillows that are true memory foam which your head molds into perfectly and are amazing. these new ones they are making aren't worth it. In one picture you can see the cover with different colored cheap foam and the other picture with the green and white thick premium quality shredded memory foam. The other pictures show how the old ones are thick and firm and moldable for you head and the other 2 are floppy because they use cheaper shredded foam. They need to use the shredded foam they used last year! it was really good! Now they are not true memory foam pillows anymore due to changing from premium shredded foam to cheap shredded foam.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 18, 2024
T
Verified Purchase
Tonyamazin
Whiting, US
★★★★★ 5
Great comfortable, pillows.
Color: Black(4pack), Size: Standard
These are some great, comfortable pillows. They are soft and feel great. They are good for sleeping on or just using them to be comfortable in bed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026

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