Worldwide Shipping
New 3B4512 Lockwasher Replacement suitable for Caterpillar Equipment
Exact Fit Guarantee
This part is guaranteed to fit your machine.
Wrong Part?
We'll overnight correct part at no cost to you.
Secure Checkout
•
Trusted Since 2012
Details
Description for 3B4512 Lockwasher
â–¶Specification for 3B4512 Lockwasher
â–¶Exact Fit Guarantee for 3B4512 Lockwasher
â–¶Reviews
Customer Reviews
Great prices prompt courteous customer service and fast shipping.
Awesome service prices and quality parts
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.
I almost want to cry ;( writing this review because I dont want people to find out about them and rather keep them in my pocket but they deserve it…
This company is great with Quality Products at amazing prices! Sometimes, their website is not the most accurate but is user friendly and if you got questions they will call back and are very prompt in responding via a call or text to verify inventory before placing an order.
I really appreciate and look forward to continuing to work with you all especially Anthony — he is amazing & the best!!!
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.
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.
Good Customer Service. Fast Shipping. A+++
They are great !
Always helpful and great pricing
Fast communication, and very Helpful!
Product Questions
Frequently Asked Questions
What is the Caterpillar 3B4512 lockwasher used for?
The 3B4512 lockwasher is designed to secure bolts and fasteners in Caterpillar equipment assemblies. Its split-spring design helps maintain tension on the fastener, preventing bolts from loosening due to vibration, heavy loads, or continuous equipment operation.
What are the key specifications of the 3B4512 lockwasher?
The 3B4512 lockwasher typically features an inside diameter of approximately 0.761–0.791 inches, an outer diameter of about 1.010 inches, and a thickness of around 0.188 inches. These dimensions allow it to provide strong locking support for heavy-duty fasteners used in Caterpillar machinery.
Is the 3B4512 lockwasher an OEM-spec replacement part?
Yes. Many suppliers manufacture the 3B4512 lockwasher to meet U.S. OEM specifications, ensuring the same durability, fit, and performance as the original Caterpillar component used in equipment assemblies.
Why are lockwashers important in heavy equipment?
It does. The 3B4512 is designed to meet or exceed OEM specifications, providing consistent performance in the applications it was built for. Have questions about your specific machine? Reach out to Propel Parts for guidance.
How can I confirm if the 3B4512 lockwasher fits my Caterpillar machine?
To verify compatibility, check the equipment model, serial number, or existing part number. Many parts suppliers also confirm fitment using CAT SIS (Caterpillar Service Information System) before shipping to ensure the lockwasher matches your machine.
When should the 3B4512 lockwasher be replaced?
You should replace the lockwasher if it shows signs of wear, corrosion, deformation, or reduced spring tension. Replacing worn lockwashers during maintenance helps maintain secure fasteners and prevents unexpected equipment issues.
Does the 3B4512 lockwasher come with a warranty?
Propel Parts stands behind the products it offers. For questions about warranty coverage or return options on the 3B4512, contact the Propel Parts team directly for details specific to your order.
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
Exact Fit Guarantee®
The right part — or we'll make it right.
Order Normally
Know your part number?
Simply place your order.
Not Sure?
Place your order, then send us your serial number before it ships.
We'll verify fit.
We Make It Right
Wrong part? We'll make it right.Fast. At our expense.