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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A guy in Alaska
Louisville, US
★★★★★ 5
Samsung - Good Stuff
Size: 32-inch
If I could get my kid's face out from in front of it for a few minutes, I might write a better, perhaps more technical review than this: Bought it for her birthday (along with a gaming PC) and have not seen her since then, as she sit's in front of it gaming all the time now. Samsung makes great stuff, price was perfect, maybe I'll get a good look at it someday.
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Reviewed in the United States on June 5, 2026
T
Verified Purchase
TW Nam
Birmingham, US
★★★★★ 5
A fantastic display for both gaming and productivity.
Size: 32-inch
The Odyssey G55C delivers a remarkably immersive experience. The 1000R curvature naturally fits the field of view and significantly enhances focus during work or gaming. The QHD resolution paired with 165Hz refresh rate produces a sharp, smooth, and responsive display. HDR10 improves contrast, and AMD FreeSync ensures tear-free motion. Even for long working hours, the Eye Care features help reduce fatigue. Pros: Deep 1000R curve enhances immersion. Sharp QHD resolution with 165Hz smoothness. Excellent color and contrast for its price range. Low input lag, great for gaming and productivity. Anti-glare coating works well. Cons: Limited USB ports (typical of gaming monitors) Stand allows tilt only—no height adjustment. Verdict: A fantastic display for both gaming and productivity. This monitor provides premium performance at an exceptional value.
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Reviewed in the United States on December 11, 2025
V
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Vincent Musolino
Omaha, US
★★★★★ 5
Top tier gaming monitor
Size: 32-inch
This monitor is the best of its class. The picture on it is better compared to its competitor, the LG ultra gear. The monitor allows you to maximize your Series X refresh rate. The HDR mode is actually brighter than statistics would give it credit for. LG's model has the same nits (300) but this literally just looks better. I just wish the stand was different, it could go without being completely plastic and awkward and non-adjustable. It has the proper mounting holes however so that it may be mounted.
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Reviewed in the United States on November 4, 2025
B
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Brody Creed
West Palm Beach, US
★★★★★ 4
Great monitor but not the monitor stand
Size: 32-inch
Overall, this is a very good monitor for the price. The picture quality is excellent, and the difference compared to my previous 27-inch 1080p monitor is immediately noticeable. The curved screen adds to the viewing experience, and there are plenty of settings available to customize the display, including good brightness options. My main complaint is the stand. It feels a bit cheap due to its plastic construction and lack of adjustability. Considering the quality of the monitor itself, a better stand would have been nice. The monitor does not include built-in speakers, which wasn't an issue for me but may matter to some buyers. Despite the stand, this monitor offers great value and delivers excellent overall performance.
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Reviewed in the United States on June 1, 2026
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TcJayLee
Fort Morgan, US
★★★★★ 5
Great for Videos and browsing
Size: 32-inch, Size: 32-inch
I did not buy this for gaming. I wanted a second monitor to browse while playing video games. With that being said it has great picture and doesn’t have any issues with refresh or delivering crisp picture quality. YouTube videos at 4K resolution is almost perfect. Its functions are user friendly and not complicated at all. The stand is rather long because of it being 32” and curved but it is strong and stable. It was super simple to connect and had no issues with compatibility with my PC. I wouldn’t use this for gaming especially if your running a high performance GPU. I’d spend a few hundred more for a better performing monitor
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Reviewed in the United States on January 9, 2026

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