New 4J5140 Seal O Ring Replacement suitable for Caterpillar Equipment
- New Seal O Ring Replacement suitable for Caterpillar Equipment
- Made to USA Specification
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Description for 4J5140 Seal O Ring
▶Specification for 4J5140 Seal O Ring
▶Exact Fit Guarantee for 4J5140 Seal O Ring
▶| Dimensions | 0.98x0.98x0.08 |
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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. -
Grateful I found this company!
I’m grateful I found this company! They answer the phone every time plus the parts are packaged very well!! Even the angriest mailman couldn’t damage your parts! lol The parts showed up as planned and for being aftermarket the quality seems to be good!! The warranty is the same as CAT. Thank you Daniel!!! -
Fast communication, and very Helpful!
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Steven & Propel Parts were a huge help! We were able to place a large order and get it shipped out same day to avoid a line down situation for a customer due to a lost component. The order was even submitted after the 3pm cutoff for same day shipments and we got it the next morning!
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Great people! Good and fast service. Always looking to help get what you need! 10/10 ????????
Frequently Asked Questions
What is the Caterpillar 4J5140 seal O-ring used for?
The 4J5140 seal O-ring is designed to create a secure seal between Caterpillar equipment components, helping prevent fluid leaks and contamination in hydraulic and engine systems.
What are the benefits of using a high-quality O-ring seal?
- Helps maintain proper fluid and pressure sealing
- Reduces the risk of leakage and contamination
- Supports reliable hydraulic and engine system performance
What are common signs that an O-ring should be replaced?
Signs include leakage, cracking, hardening, swelling, flattening, or reduced sealing performance during operation.
Why are O-rings important in heavy equipment systems?
O-rings help maintain system pressure, improve sealing efficiency, and protect sensitive components from dirt and fluid loss.
Is the 4J5140 O-ring compatible with multiple Caterpillar machines?
Compatibility depends on your machine model and system configuration. If you are unsure don’t hesitate to reach out to Propel Parts for help verifying fitment.
Are aftermarket replacement O-rings dependable?
Yes. Premium aftermarket O-rings that meet or exceed OEM specifications provide reliable sealing performance and durability in demanding operating environments.
Are similar sealing components available for related applications?
Yes, products such as the Caterpillar 0951578 seal O-ring are commonly used in related Caterpillar equipment systems requiring dependable leak protection.

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.

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.

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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