New 6V7687 Locknut Replacement suitable for Caterpillar Equipment

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

Buy with Confidence: All parts are covered by our warranty

$0.33

4.7

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In Stock | Ships Out Today | Order By 3pm ET
SKU
6V7687CTP
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Description for 6V7687 Self-locking Nut

This aftermarket Caterpillar 6V7687 Self-locking 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 Self-locking 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 6V7687 Self-locking Nut

Replacement Part Number(s): 6V-7687
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: 0.04 LBS | 0.02 KG
Dimensions: 0.83 x 0.83 x 0.43 (inches)
Condition: New

Exact Fit Guarantee for 6V7687 Self-locking Nut

Looking for a reliable replacement Caterpillar 6V7687 Self-locking 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 120H, 120M, 120M 2, 12H, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 135H, 140H, 140K, 140K 2, 140M, 140M 2, 140M 3, 140M 3 AWD, 143H, 14H, 14M, 160H, 160K, 160M, 160M 2, 160M 3, 160M 3 AWD, 163H, 16H, 16H NA
Dimensions 0.83x0.83x0.43
Customer Reviews
  1. 100%
    Satisfied Customer.
    I made my first purchase from Propel Parts last week. I was very happy with the response time and the delivery was fast, fast, fast! Also, the quality of the product is superb and at a great low price.
    Keep up the great work!
  2. 100%
    Customer service was great! There was a small problem with the part and they responded quickly and respectfully until was resolved! Highly recommended
  3. 100%
    To my country the company is doing great
    The products they market is good and
    Affordable.
    They can delivery to any country, stree free.
    Tested and trusted.
  4. 100%
    Awesome service prices and quality parts
  5. 100%
    Good Stuff.
    We have had a couple shipping issues, but each time they made it right and we ended up getting what we need. Quality parts at half the price of OEM.
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Frequently Asked Questions

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What is the Caterpillar 6V7687 locknut used for?

The Caterpillar 6V7687 Locknut is a self-locking hex nut designed to secure bolts in Caterpillar machinery. Its locking design helps prevent loosening caused by heavy vibration, pressure, or constant machine movement, ensuring stable and secure fastening in demanding applications.

What are the main specifications of the 6V7687 locknut?

This locknut typically features an M12 × 1.75 thread size, coarse thread pitch, and hardened steel construction. It is usually coated with protective zinc to resist corrosion and provide reliable performance in harsh operating environments.

Which Caterpillar machines are compatible with the 6V7687 locknut?

The 6V7687 locknut is used in several Caterpillar machines and engines, including equipment such as articulated dump trucks and asphalt compactors. It is also compatible with many motor grader models like 120H, 120M, 140H, and 160M. Always confirm fitment with your machine's model and serial number before ordering.

Is the 6V7687 locknut an OEM or aftermarket replacement part?

Aftermarket, but built to OEM standards — the 6V7687 offers the same fit and performance as the original part. Contact Propel Parts if you need help verifying compatibility with your equipment.

Why are self-locking nuts important in heavy equipment?

Self-locking nuts are designed to prevent loosening under vibration and heavy loads, which are common in construction and mining equipment. Using a proper locking fastener helps maintain mechanical stability and reduces the risk of component failure during operation.

How do I confirm that the 6V7687 locknut will fit my equipment?

To ensure the correct fit, check the original part number, machine model, or serial number. Many suppliers verify compatibility using Caterpillar service databases before shipping to ensure the replacement part matches your equipment.

When should the Caterpillar 6V7687 locknut be replaced?

The 6V7687 should be replaced whenever deterioration is evident or during major service intervals. Addressing wear early prevents secondary damage and avoids the higher repair costs that come with deferred maintenance.

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

This 6V7687 Self-locking Nut is compatible with the following models:
120H, 120M, 120M 2, 12H, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 135H, 140H, 140K, 140K 2, 140M, 140M 2, 140M 3, 140M 3 AWD, 143H, 14H, 14M, 160H, 160K, 160M, 160M 2, 160M 3, 160M 3 AWD, 163H, 16H, 16H NA & 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.