4448399 Seal Kit for Hitachi ZX210W Arm Hydraulic Cylinder | 4480403

Is your Hitachi ZX210W weeping oil at the {comp} rod? Kit 4448399 is the one listed for that arm cylinder. The arm cylinder pulls the stick in and pushes it out. That crowd motion is what you dig with, and the seals feel every stroke.

• How do I check that kit 4448399 fits my machine? Compare the model (ZX210W), the part number of your cylinder and the machine serial number with this listing. If one of them is off, ask before you order.
• What are the seals made from? The compounds are polyurethane (PU), Viton and NBR. PU copes with pressure spikes, Viton with heat, and NBR is the usual oil-resistant rubber.
• Which OEM number does 4448399 match? The listing uses 4448399 as the OEM reference part number.

Three checks before ordering:

1. Your machine is a Hitachi ZX210W.
2. The part number of your cylinder lines up with 4448399.
3. The serial number agrees, if the part number is unclear.