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New 3B4615 Cotter Pin Replacement suitable for Caterpillar Equipment
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Description for 3B4615 Cotter Pin
â–¶Specification for 3B4615 Cotter Pin
â–¶Exact Fit Guarantee for 3B4615 Cotter Pin
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Customer Reviews
Very helpful. Every question or request I had was answered quickly. I didn't have a parts book for my excavator but that was no problem for them. If you need parts for your Cat, give them a shot.
Helpful with making sure parts fit my machine
Excellent experience.
Mike has been very helpful. I am looking forward to keep doing business with them
I’ve been ordering parts from propel for about 3 years & counting. I live in Hawaii where we have a hard time getting parts especially for decent prices with fast shipping. I've been 100% satisfied with the company and the customer service and will continue to use them. I recommend propel to everyone here in Hawaii and we are all happy to have you guys. Thank you!!!
Great company with outstanding customer service. Always get answers to my questions and always get my order to me quickly!
Excellent service!! Yes, very satisfied with the service, you have been very kind!
Good service, quick response.
Great company to deal with. Answered my questions with detail and shipped me the part in good time! I will be dealing with them more in the future!
A Delay Handled the Right Way
Honestly, if I were in Miami like my shipment was, I wouldn?t have been in a hurry to ship out either. I was frustrated at first ? delays cost me time on the job ? but Propel Parts stepped up.
Deb, Daniel and the team owned the mistake, kept the communication clear, and graciously refunded my shipping costs without making it a hassle. That kind of accountability is rare these days, and I genuinely appreciated how they handled it.
Things don?t always go perfectly, but these folks proved they?re more interested in doing right by their customers than just pushing parts out the door. Solid company, solid people.
? Jimmy Spong
Hartco Mobile Welding
P.S. Incredible quality on the pin as well. I had to do some custom modifying, and let?s just say the case hardening was ? well ? hard. Great Stuff! Thank you.
They are great !
Product Questions
Frequently Asked Questions
What is the Caterpillar 3B4615 cotter pin used for?
A: The 3B4615 cotter pin is a locking fastener used in Caterpillar equipment to prevent nuts, bolts, or pins from loosening or backing out under vibration and load. They are commonly found in steering linkages, bucket pins, and undercarriage assemblies.
Can cotter pins be reused after removal?
A: No. Cotter pins should never be reused after removal. Bending the pin during installation causes metal fatigue, and reinstalling a bent cotter pin can lead to premature failure and loss of the fastener it is securing. Always install a new cotter pin.
Is the 3B4615 cotter pin a direct replacement for the original?
A: Yes. This high-quality aftermarket cotter pin matches the original Caterpillar dimensions for diameter and length, providing a direct fit in your equipment.
Which machines is the 3B4615 compatible with?
A: This cotter pin is used across a variety of Caterpillar machinery. Check your parts manual or reach out to Propel Parts for help verifying fitment for your specific machine.
Browse our full selection of hardware parts for heavy equipment including cotter pins, snap rings, and other fastening accessories.
What material is the 3B4615 cotter pin made from?
A: This cotter pin is manufactured from durable, corrosion-resistant steel that meets or exceeds the strength requirements of the original Caterpillar specification, ensuring reliable locking performance in demanding environments.
How do I install a cotter pin correctly?
A: Thread the cotter pin through the hole in the bolt or pin, then bend the legs apart on either side (one up, one down or both to the same side) to lock it in place. Ensure the pin is fully seated and the legs are bent sufficiently to prevent backing out during operation.
What warranty is included with this part?
A: All Propel Parts products carry a 12-month warranty from the invoice date against manufacturing and material defects. Same-day shipping is available on weekday orders placed by 3pm ET.
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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.
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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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