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Caterpillar D-Ring Kit. HERCULES CAT D RING KIT

Alternate Part Numbers Alternate Part Number C1EW63	Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	Supplier Part Number CTC-4C4784	Product Weight 1.78 lbs

Product Questions & Answers 1

Product Questions & Answers

got a Cat cylinder i’m rebuilding. is this kit basically the d-rings i need or am i still chasing a bunch of single seals?

Question by: Daryl R on Feb 12, 2026, 3:35 PM

For Cat hydraulic cylinder and component work, the point of this kit is having the D-ring profiles matched to Caterpillar specifications all together, so you are not sourcing individual D-rings across a pile of part numbers.

Answer by: Customer Support on Feb 14, 2026, 11:58 AM

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CTC-4C4784	HERCULES CAT D RING KIT