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Shop hydraulic cylinder seal kits for Case CX470B excavators. Broken Tractor stocks boom, dipper, and bucket cylinder seal kits to stop hydraulic leaks and restore digging performance on your large excavator.
Fits Models At A Glance:
- Case Excavators: CX470B
- Additional Fitment (Select Components): CX460 Tier 3, CX470C 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 kits fit a Case CX470B excavator?
Broken Tractor carries three front-end cylinder seal kits for the Case CX470B: the boom cylinder seal kit LZ008290, the dipper arm cylinder seal kit LZ008350, and the bucket cylinder seal kit LZ008380. Each kit is built for a specific cylinder, so choose the kit that matches the cylinder you are resealing.
Do Case CX470B cylinder seal kits fit a CX460 or CX470C?
Some do, but it depends on the kit and the machine. The boom kit LZ008290 and dipper kit LZ008350 also list fitment for select Case CX460 and CX470C excavators. The bucket kit LZ008380 lists the CX460 Tier 3 and CX470B only, not the CX470C. Match the part number on your cylinder or call our parts team at (800) 909-7060 before ordering.
What causes boom or arm drift on a Case CX470B excavator?
Drift on a Case CX470B is commonly caused by internal bypass, where hydraulic oil slips past worn seals inside the cylinder. Resealing the cylinder with the correct boom, dipper or bucket seal kit seals it again, which eliminates drift caused by internal bypass. Worn seals can also cause visible hydraulic leaks and reduced digging performance.
Is the dipper cylinder the same as the arm cylinder on a Case CX470B?
Yes, the dipper cylinder and the arm cylinder are the same cylinder on a Case CX470B excavator. Broken Tractor lists its seal kit as the dipper arm cylinder seal kit, part number LZ008350. It is a separate kit from the boom and bucket cylinder seal kits.
Who makes the Case CX470B seal kits sold by Broken Tractor?
The Case CX470B seal kits we carry are manufactured in the USA by Hercules or Bulldog Hydraulics. They are made to OEM specifications for the boom, dipper and bucket cylinders, and they ship fast from U.S. warehouses.
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