Seal Kit for Toyota, BT Manual Pallet Jacks
00591-57577-81
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Compatibility
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Visit our diagram page for part references to popular models
Product Description
The Toyota 00591-57577-81 BT Super Seal Kit is a hydraulic pump seal kit designed for compatibility with select BT and Toyota manual pallet jacks. It includes high-performance NBR and polyurethane seals rated for 3000 PSI system pressure, engineered to restore hydraulic integrity in single-acting jack pumps. Equivalent to BT 129883-SUPER, this kit maintains pressure performance and fluid compatibility for ISO 32/46 hydraulic oils.
Specifications
Part Numbers & Compatibility
| Make | Toyota, Prime Mover |
| Part Number | 00591-57577-81 |
| Manufacturer Part Number | 00591-57577-81 |
| Cross-Reference Part Numbers | Equivalent to BT 129883-SUPER |
| Fluid Compatibility | ISO 32/46 hydraulic oils |
| Application | Designed for compatibility with select BT and Toyota manual pallet jacks |
Performance Specifications
| Pressure Rating | 3000 PSI |
Additional Specifications
| Seal Material | Nitrile rubber (NBR) and polyurethane, for hydraulic fluid compatibility |
| Seal Hardness | 70 Shore A durometer (NBR), 90 Shore A durometer (polyurethane) |
| Product Type | Hydraulic pump seal kit |
Frequently Asked Questions
Q: What equipment does the 00591-57577-81 fit?
A: The 00591-57577-81 is a hydraulic pump seal kit designed for Toyota, BT, and Prime Mover manual pallet jacks with single-acting pump systems. Verify your equipment model matches one of the compatible models listed before ordering.
Q: What cross-reference part replaces the 00591-57577-81?
A: The 00591-57577-81 is equivalent to BT part number 129883-SUPER. If your equipment documentation references the BT part number, this seal kit is the correct replacement. Both part numbers provide identical sealing performance.
Q: What seal materials are included in the 00591-57577-81 kit?
A: This kit includes high-performance NBR (nitrile rubber) and polyurethane seals. Both materials are compatible with ISO 32/46 hydraulic oils and provide fluid-resistant performance.
Q: What system pressure does the 00591-57577-81 seal kit support?
A: The seal kit is engineered for 3000 PSI system pressure in single-acting jack pumps. Operating the jack above this pressure rating will cause seal failure and hydraulic leakage.
Q: What are failure symptoms for worn-out hydraulic pump seals?
A: Worn seals cause visible hydraulic fluid leakage around the pump, loss of lifting pressure, slow pump operation, or inability to reach full lift height. Continued operation with leaking seals damages the pump and requires more extensive repairs.
Q: How long does the 00591-57577-81 seal kit last in manual pallet jack service?
A: Seal kit performance depends on hydraulic fluid condition, system pressure maintenance, and usage frequency. In normal warehouse duty, expect 3 to 5 years of service. Clean fluid and proper maintenance extend seal life significantly.