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New 6V7687 Locknut Replacement suitable for Caterpillar Equipment
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Description for 6V7687 Self-locking Nut
â–¶Specification for 6V7687 Self-locking Nut
â–¶Exact Fit Guarantee for 6V7687 Self-locking Nut
â–¶Reviews
Customer Reviews
I put 2 of the same orders in due to a web page error and shortly after I was contacted by Deb from customer service asking if I meant to place both orders. She was very helpful, the email was very well written and it genuinely made me feel better about the whole experience. She resolved the issue quickly and with there not being much of customer service these days I was very happy so see that is not the case everywhere!!!
GREAT CUSTOMER SERVICED
WANTED TO THANK PROPEL PARTS FOR THEIR ATTENTION TO AN URGENT MATTER I HAD. THEY RESPONDED QUICKLY & RESOLVED IT. I ALSO WANTED TO MENYTION THAT OUR CUSTOMER'S ARE VERY HAPPY WITH THE PARTS EWE HAVE BEEN ORDERING FROM PROPEL. WE WILL DEFINITLEY CONTINUE TO DO BUSINESS.
Have been buying parts from them for years, and they have always delivered, both with parts and customer service.
Original Review (Spanish)
Si necesitas piezas de repuesto a buen precio para tu m?quina grande y quieres un servicio al cliente atento, esta tienda es una muy buena opci?n.
English Translation
If you need affordable replacement parts for your heavy equipment and want attentive customer service, this store is a very good option.
Great company with outstanding customer service. Always get answers to my questions and always get my order to me quickly!
Excelente atencion y refacciones de calidad
Great pricing and fast shipping!
I'll admit that I was skeptical of propel parts, but they are an honest site and came through with the order. I was skeptical because I've never ordered heavy machinery parts, and didn't know who to trust. The parts that I ordered showed in stock, but after checking with their vendor, they only had half of the order in stock. I was notified the day after the order, and most of the parts arrived in a few days. There was one part that was not shipped putz but I was able to talk with who I assumed is the owner who rectified the situation and had the part overnighted to me.
I will say that communication speed could use a little work, but they will eventually get back with you.
Awesome and diligent support. Would definitely recommend
The gentleman was very helpful
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.
Product Questions
Frequently Asked Questions
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.
Compatible Models
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 | Returns
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.
Exact Fit Guarantee
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