Sourced from Hercules Sealing Products, this kit is designed specifically for Caterpillar equipment and provides the D-ring seals needed to restore hydraulic cylinder and component integrity on Cat machinery. The Caterpillar D-Ring Kit is cataloged under assortment kits and tools, making it a practical solution for technicians maintaining or rebuilding Cat hydraulic systems in field or shop environments.
Each kit contains the appropriate D-ring profiles matched to Caterpillar specifications, reducing the need to source individual seals across multiple part numbers. Hercules Sealing Products is a recognized name in industrial sealing, and this kit reflects their focus on fit accuracy and material quality for heavy equipment applications.
SKU: CTC-4C4784
Supplier Part Number (MPN): CTC-4C4784
Alternate Part Numbers: C1EW63
Specifications
Alternate Part Numbers
Alternate Part NumberC1EW63
Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Pack Size
1.00
UOM
EA
Supplier Part Number
CTC-4C4784
Product Weight
1.78 lbs
Similar Products
Model Number
Product Description
Price
Action
CTC-4C4784Caterpillar D-Ring Kit
HERCULES CAT D RING KIT
Product Questions & Answers (1)
Question by: Daryl R on Feb 12, 2026, 3:35 PM
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?
Answer by: Customer Support on Feb 14, 2026, 11:58 AM
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.