- Cylinder Rebuild/Repair Seal Kit for Hitachi Model ZX50 U-3, ZX50 U-3F, ZX50 U-3U Mini/Compact Excavator
- Serial Numbers: 020001 - Up
- Cylinder #: 4655763, 4655764, 4655765, 4655766
- Rod: 55 mm
- Bore: 95 mm
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