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Shop hydraulic cylinder seal kits for Case CX80C excavators. Broken Tractor stocks boom, dipper, and bucket cylinder seal kits to stop hydraulic leaks and restore digging performance on your mid-size excavator.
Fits Models At A Glance:
- Case Excavators: CX80C, CX75C SR Tier 4
Key Notes:
- Coverage: Boom cylinder seal kits, dipper (arm) cylinder seal kits, and bucket cylinder seal kits
- Application: Excavator front-end hydraulic cylinders — restores sealing and eliminates drift caused by internal bypass
- Made In USA: Seal kits manufactured by Hercules or Bulldog Hydraulics to OEM specifications
Why Choose Broken Tractor:
✅ Made in USA Seal Kits from Hercules/Bulldog
✅ Boom, Dipper, and Bucket Kits In Stock
✅ Fast Shipping from U.S. Warehouses
Frequently Asked Questions
What seal kit fits the boom cylinder on a Case CX80C excavator?
Broken Tractor offers a Boom Cylinder Seal Kit for the Case CX80C under SKU LZ012020. It is built for the front-end boom cylinder and lists fitment for the CX80C and CX75C SR Tier 4. Fitment can depend on your serial number, so match the part number on your cylinder or confirm with our parts team at (800) 909-7060 before ordering.
How do I know if the cylinder seals on my Case CX80C are worn?
Visible hydraulic leaks and cylinder drift are the most common signs of worn seals on a Case CX80C. Drift happens when fluid bypasses the piston seals inside the cylinder, so the boom, arm or bucket slowly creeps down under load. A seal kit is designed to stop leaks and eliminate drift caused by that internal bypass.
Does the Case CX80C boom cylinder seal kit also fit the CX75C SR?
Yes, the Boom Cylinder Seal Kit (SKU LZ012020) lists fitment for both the Case CX80C and the CX75C SR Tier 4. Because cylinders can vary by serial number, compare the part number on your machine's boom cylinder before you order.
Who makes the seal kits for Case CX80C excavator cylinders?
Our Case CX80C seal kits are made in the USA by Hercules or Bulldog Hydraulics. They are built to OEM specifications for Case excavator front-end hydraulic cylinders.
Can I reseal a leaking Case CX80C cylinder instead of replacing it?
Yes, a seal kit lets you reseal the cylinder you already have instead of buying a complete replacement. Our Case CX80C seal kits cover the boom, dipper (arm) and bucket cylinders and are designed to stop hydraulic leaks and drift. Pick the kit that matches the cylinder you are rebuilding.