TO 00591-76593-81

Frequently Asked Questions

Q: What is the difference between the TO 00591-76593-81 and the TO 00591-76590-81 seal kits?
A: The TO 00591-76593-81 is a hydraulic lift cylinder seal kit for general lift cylinder assemblies, while the TO 00591-76590-81 is specifically engineered for main mast cylinders. These kits have different seal and O-ring configurations because mast cylinders operate under higher pressure and load than secondary cylinders. Use the correct kit for your specific cylinder type.

Q: Which Toyota lift truck models does the TO 00591-76593-81 fit?
A: The TO 00591-76593-81 is compatible with Toyota electric lift truck cylinder assemblies used in walkie stackers, pallet jacks, and reach trucks. Cylinder fitment depends on bore size and rod diameter. Verify your equipment model and cylinder application against Toyota parts documentation before ordering to ensure the correct kit.

Q: What OEM-grade elastomers does this seal kit use?
A: The TO 00591-76593-81 uses OEM-grade elastomer seals engineered for lift cylinder hydraulic systems. These seals are formulated for ISO 32-46 hydraulic fluid compatibility and provide reliable performance across the duty cycles and pressure ranges of Toyota lift equipment.

Q: Can the TO 00591-76593-81 be used as a cross-reference for other brands?
A: The TO 00591-76593-81 is a Toyota OEM part. Cross-referencing with other brands like Crown, Raymond, or Yale lift trucks is not recommended unless cylinder bores and rod diameters match exactly. Always verify part numbers and specifications; using incorrect seal kits causes leaks and hydraulic pressure loss.

Q: How often should lift cylinder seals be replaced as preventive maintenance?
A: Replace lift cylinder seal kits when external leakage appears at the cylinder rod, lift speed slows noticeably, or the cylinder fails to hold pressure under load. In environments with high contamination or constant use, consider seal replacement every 4-6 years even without visible failure symptoms.