SKU: 42530056009

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

$268.88 $298.75
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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: 42530056009

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Mayberry mommy
Cuba, US
★★★★★ 5
Put your aggressive Chewer dog to the test!
Color: A Red, Size: For Larege Dogs
A very tough toy to stand up to my aggressive chewer lab! It's a great value! The squeak is not annoying, and she's got to clamp down hard on it. It's a nice throw toy! It bounces once or twice but it still brings out the pup in our Dog! Not too small a nice size for a Lab or retriever
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
M
Verified Purchase
Mo
Carnegie, US
★★★★★ 5
A Hardy Toy for Chewers
Color: Bule Octopus, Size: For Larege Dogs, Color: Bule Octopus, Size: For Larege Dogs
I must say I was very surprised with the durability of this toy. We've had it for 3 days and not one puncture hole. My rescue is a destroy chewer that doesn't care for Hardy chew toys unless it squeaks. While the squeaker isn't the best, he still loves it. We put peanut butter in the grooves for him and he goes to town. Will purchase again should he ever destroys it, worth the price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
J
Verified Purchase
Jeffrey Brown
San Leandro, US
★★★★★ 5
Durable toy for a great price! Will buy again.
Color: A Red, Size: For Larege Dogs, Color: A Red, Size: For Larege Dogs
Great toy, heavy, good size, and durable for active chewers. My two dogs like to play tug a war a lot and this toy has held up fantastically! Afterwards they tend to chew toys to pieces but this one has stood the test of time so far. Great buy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
S
Verified Purchase
SHUGRLTARA
Whiting, US
★★★★★ 4
Very tough & VERY heavy
Color: A Red, Size: For Larege Dogs
My dog is a half black lab/half pittie & a very aggressive chewer she goes through toy bones very quickly, to the point they're so slivered up within 2 days, sometimes slightly longer, I have to get rid of them, they never last long, except for whole antlers and some split antlers. Although she rarely touches the whole antlers . Anyways, this is a great tough toy for strong large breeds. It squeaks in the center if you squeeze hard enough but the toy/bone was a bit too heavy for my girl. I got her the next smaller one and she still plays with the big heavier one more than the one that fits her perfectly so go figure. It's a great product and definitely recommend for heavy chewers. I only took a star off because of the weight I was extremely surprised by how heavy it was, but that's not necessarily a bad thing depending on the dog, this size is just not for my dog. I think I've had it about a month and she does play with it, not as much as her other toys, but it's still in amazing shape even with her heavy chewing.
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Reviewed in the United States on April 21, 2024
A
Verified Purchase
Alannah Henry
Carnegie, US
★★★★★ 5
Squeaky Toy for Aggressive Chewers
Color: A Violet, Size: For Larege Dogs
Size is great for our big dog, he loves to chew & squeak it. engagement, our dog loves playing fetch, hours of enjoyment.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026

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