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New 4J5477 Seal O Ring Replacement suitable for Caterpillar Equipment
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Description for 4J5477 Seal O Ring
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Customer Reviews
Customer service was great! There was a small problem with the part and they responded quickly and respectfully until was resolved! Highly recommended
Excellent service and quick response!
Great customer service
Anthony was very professional and on top of what needed to be done to get my order verified and moving forward.
Online order.
I had a good experience this morning I placed an online order and everything went smoothly. The staff at propel parts has always been helpful in the past when I have been looking for harder to find parts or something that wasn’t listed online.
Excellent customer service and parts.
You guys have always gave excellent customer service!!! Very prompt responsiveness. Warranty services are superb. I have been using them for quite awhile now on equipment I have. Always great prices for parts! Keep up the great work guy's
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!
Excellant customer service!
The prices are very good! The customer service is excellant! I had to contact them because our tax info wasn't right and they refunded it on the spot! Great job! we will be doing a lot more ordering from thi company. Highly recommended!
Excelente servicio rapido, responsable y confiable
Great service at an affordable price to get my machine back going.
Excellent service and very very good service
Product Questions
Frequently Asked Questions
What is the Caterpillar Seal O-Ring 4J5477 / 3E6760 and what does it do?
The 4J5477 / 3E6760 O-ring seal is a precision-engineered circular sealing element made from durable elastomeric material. Browse our full selection of O-ring seals for heavy equipment for the complete range. It creates a tight, leak-proof barrier between mating surfaces in hydraulic systems, fuel lines, cooling circuits, and engine assemblies.
Which Caterpillar equipment models is the 4J5477 / 3E6760 compatible with?
The 4J5477 / 3E6760 O-ring is designed for use across a broad range of Caterpillar equipment. Compatibility varies by engine series and machine model, so always verify using your equipment's serial number and service manual before ordering.
How do I know when my O-ring needs replacing?
Common signs that an O-ring is due for replacement include:
- Visible fluid leaks around fittings, ports, or connectors
- Staining or residue buildup near sealing points
- Pressure drops in hydraulic or fuel systems
- Swelling, cracking, or flattening of the seal when inspected during service
How do I properly install the 4J5477 / 3E6760 O-ring seal?
Proper installation is critical for effective sealing. Always:
- Clean the groove and mating surfaces thoroughly
- Lightly lubricate the O-ring with compatible fluid or grease before installation
- Seat the O-ring evenly in the groove without twisting
- Avoid using sharp tools that could nick or cut the seal
- Tighten fittings to the specified torque listed in your service manual
Is the 4J5477 / 3E6760 a high-quality aftermarket part?
Yes ??? this is a premium aftermarket O-ring seal that meets or exceeds OEM specifications. For complete seal kits, explore our seals and gasket overhaul kits.
What materials are used in this O-ring?
The 4J5477 / 3E6760 O-ring is manufactured using high-grade elastomeric compounds selected for compatibility with hydraulic fluid, fuel, and engine oil. Many O-rings in this series feature a PTFE coating that reduces installation friction and extends operational life.
What is the warranty on the 4J5477 / 3E6760 O-ring from Propel Parts?
All parts sourced through Propel Parts come backed by a 12-month warranty. Orders placed on weekdays by 3:00 PM ET ship the same day, and Propel Parts ships to over 90 countries worldwide.
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.
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