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New CAT 4C4784 (2701535) D-Ring Seal Kit Caterpillar Aftermarket for Caterpillar Equipment
- New 4C4784 D-Ring Seal Kit Replacement suitable for Caterpillar Equipment
- Made to USA Specifications
Buy with Confidence: All parts are covered by our warranty
4.7
(Site rating)Description for 4C4784 Seal O Ring Kit
▶Specification for 4C4784 Seal O Ring Kit
▶Exact Fit Guarantee for 4C4784 Seal O Ring Kit
▶| Dimensions | 9.45x7.48x2.36 |
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Excellent service!! Yes, very satisfied with the service, you have been very kind!
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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. -
Been buying from them for years and have almost never had an issue. The few times I had a question or something to handle, they have shown amazing customer service. Great product and a great company.
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Excellent service and very very good service
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100% excelente
Frequently Asked Questions
What is the Caterpillar 4C4784 D-ring seal kit used for?
A: The 4C4784 D-ring seal kit is used to seal hydraulic connections in Caterpillar equipment. D-ring seals (also called boss seals) provide a reliable leak-proof connection at O-ring boss fittings in hydraulic systems, preventing fluid loss and contamination.
What is included in the 4C4784 D-ring seal kit?
A: This kit typically includes the D-ring seal and backup ring designed for use with specific Caterpillar O-ring boss (ORB) fittings. Check the product listing for complete contents or contact Propel Parts for details.
How do I know when D-ring seals need replacement?
A: Replace D-ring seals when you observe hydraulic fluid leaking at fitting connections, any disassembly of the fitting for service, or visible damage or hardening of the existing seal. D-ring seals are inexpensive insurance against hydraulic leaks.
Is this a high-quality aftermarket seal kit?
A: Yes. This is a premium high-quality aftermarket D-ring seal kit that meets or exceeds OEM specifications for material composition, dimensions, and pressure rating.
Browse our full selection of seals and gaskets for hydraulic and engine sealing applications across Caterpillar and other heavy equipment.
Which CAT machines is the 4C4784 seal kit compatible with?
A: This seal kit is used across a range of Caterpillar hydraulic systems. Check your parts manual or reach out to Propel Parts for help verifying fitment with your machine.
How do I install a D-ring seal correctly?
A: Clean the fitting and boss threads thoroughly. Apply a light coat of clean hydraulic fluid to the D-ring. Install the seal into the boss groove, then thread the fitting in by hand before torquing to the specification in your Caterpillar service documentation.
What warranty is included?
A: All Propel Parts products include 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.
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.
1 YEAR UNLIMITED WARRANTY
ORDER BY 3PM EST. EXCL. WEEKEND
NO CORE OR EXCHANGE CHARGES
EASY RETURNS & FAST REFUNDS
