8T4131 Nut Replacement suitable for Caterpillar Equipment

  • New Nut Replacement suitable for Caterpillar Equipment
  • Made to USA Specification

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$0.59
In Stock • Ships Today • Order By 3pm ET
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SKU
8T4131CTP
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Description for 8T4131 Hex Nut

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This aftermarket Caterpillar 8T4131 Hex Nut is built to meet U.S. OEM specifications for durability and performance. At Propel Parts, we perform strict quality checks to ensure it fits and functions like your original Caterpillar Hex Nut.
Direct Replacement: Engineered for a precise fit in Caterpillar equipment.
OEM-Spec Quality: Manufactured to match the performance of your original part.
Tested Reliability: Strict quality checks are performed before shipping.

Specification for 8T4131 Hex Nut

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Replacement Part Number(s): 8T-4131
Specifications: Aftermarket Part | US OEM Specs.
Shipping: Same Day (Weekdays) | Order by 3pm.
Warranty: Unlimited Mileage | 1 Year Warranty.
Core: No Core Required | No Core Charge.
Weight: 0.13 LBS | 0.06 KG
Dimensions: 1.30 x 1.30 x 0.59 (inches)
Condition: New

Exact Fit Guarantee for 8T4131 Hex Nut

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Looking for a reliable replacement Caterpillar 8T4131 Hex Nut ? Order with confidence through our Exact Fit Guarantee.
Verified Fit: Before we ship, we check your part against CAT SIS (Caterpillar Service Information System) to confirm it's the correct match for your machine.
Peace of Mind: If it isn't the right fit, we'll contact you with the correct Caterpillar part number before your order goes out.
Exclusive Guarantee: Enroll in our Exact Fit Guarantee at checkout to ensure you get the part you need the first time.
More Information
Models D6N, D6N LGP & more
Dimensions 1.30x1.30x0.59
Customer Reviews
  1. 100%
    At the beginning, I experienced significant delays and communication issues regarding my order, which honestly caused serious concern because the parts were urgently needed for an important project.

    However, after continuous follow-up, the Propel Parts team handled the matter professionally, provided shipment tracking, and the parts finally arrived successfully.

    I especially appreciate their willingness to communicate, acknowledge the issue, and continue working toward resolving the situation.

    In international business, delays can sometimes happen, but what matters is the final commitment to resolving the issue properly.

    Thank you to Daniel and the team, and hopefully future transactions will be smoother for both sides.
  2. 100%
    Placed an order twice and immediately resolved!
    Misty reched out immediately because I accidentally placed an order twice. Fantastic service.
  3. 100%
    Great company with outstanding customer service. Always get answers to my questions and always get my order to me quickly!
  4. 100%
    Excellent and prompt response.
    Propel parts team helped me greatly regarding a special request and I always get prompt response.
    They’re fantastic!
  5. 100%
    Great service at an affordable price to get my machine back going.
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Frequently Asked Questions

Product

What is the 8T4131 nut used for?

The 8T4131 is a nut that pairs with a bolt or stud to clamp components together and resist loosening under load.

How do I install the 8T4131 nut?

Fitting the 8T4131 correctly comes down to clean surfaces and following the manual’s sequence. Work through these steps:

  1. Shut the machine down and isolate power before service
  2. Clean the threads on the stud or bolt and inspect them
  3. Thread the 8T4131 on by hand to confirm it runs freely
  4. Tighten to the specified torque in the correct sequence
  5. Re-check the torque after the first operating cycle if advised

Which Caterpillar machines is the 8T4131 compatible with?

Fitment for the 8T4131 depends on your specific Caterpillar model and the assembly it serves, so confirm the application before you order. Check your manual or reach out to Propel Parts for help verifying fitment.

Does the 8T4131 nut meet performance standards?

Yes. The 8T4131 is manufactured to meet OEM specifications for tolerance and material quality. When replacing, choose genuine or high-quality aftermarket parts that meet or exceed OEM specifications for dependable, long-term performance.

How often should the 8T4131 be replaced?

Plan to replace the 8T4131 during a rebuild of the surrounding components, or sooner if inspection shows it is past its serviceable limit. This part is commonly replaced alongside the 5A3187 Bolt Track, so it is worth checking both while the assembly is open.

What are the signs of a worn or failing 8T4131 nut?

When the 8T4131 reaches the end of its service life, the symptoms tend to show up first as performance or wear issues. Look for:

  • A loosening joint or lost torque
  • Rounded, stripped, or corroded threads
  • A nut that won’t hold position under vibration
  • Damage to the mating washer or surface

Why is the 8T4131 nut important, and what related part is commonly replaced with it?

Replacing the 8T4131 when needed keeps the system within its designed clearances and loads, which extends the life of the surrounding parts and supports dependable performance. The 1768464 Shim is commonly serviced together with this part, so it is worth replacing both while access is available.

Questions About this Part?
Have a question about fit, compatibility, shipping, warranty, or returns?

This 8T4131 Hex Nut is compatible with the following models:
D6N, D6N LGP & more...

Shipping

We know equipment downtime costs money, so fast and reliable shipping is a priority at Propel Parts. Orders placed on weekdays before 3:00 PM ET typically ship the same day, with expedited delivery options available for many locations when time is critical.

We ship across the U.S., Canada, and over 130 countries worldwide, helping customers keep machines running wherever they operate. Available shipping methods and delivery estimates are shown at checkout so you can select the option that best fits your timeline.

Tracking information is emailed within 24–48 hours after your order is processed, giving you full visibility from dispatch to delivery and peace of mind that your parts are on the way.

Easy Returns

Our refund policy is simple. We offer a 30-day, no-hassle return policy, and we make every effort to provide the best service and highest-quality parts possible. If you’re not fully satisfied with your purchase, you may return it within 30 days for a refund. Full details are available on our Returns Policy page.

Warranty

Buy with confidence. All parts from Propel Parts are covered against material or manufacturer defects for 12 months from the original invoice date. We stand behind every part we sell, so you can count on reliable performance and dependable support. Full details are available on our Warranty Policy page.

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