Product Description
Toyota OEM solenoid, part number 00591-21049-81, is a continuous duty 24VDC electromagnetic relay designed for electric lift trucks and forklifts operating at up to 100A. Flat bracket mounting. Compatible with Toyota electric equipment; interchangeable with no identified supersession or cross-reference part numbers.
Specifications
Electrical
| Solenoid Operating Voltage | 24VDC nominal |
| Continuous Current Rating | 100 amperes continuous duty |
| Control Circuit Voltage | 24VDC coil |
Part Numbers
| OEM Part Number | 00591-21049-81 |
| Manufacturer Part Number | 00591-21049-81 |
Frequently Asked Questions
Q: What is the Toyota 00591-21049-81 solenoid specification?
A: The Toyota 00591-21049-81 is a 24VDC continuous-duty solenoid rated for 100 amperes continuous current. It features a flat bracket mounting design and is engineered for Toyota electric forklifts and lift trucks. The solenoid controls hydraulic or electrical circuits via electromagnetic relay action.
Q: What does 100 amperes continuous duty mean?
A: Continuous duty means the solenoid can safely handle 100A of current indefinitely without overheating or coil failure, assuming proper cooling and no extreme operating conditions. Do not exceed 100A, as overcurrent causes coil burnout. Size your control circuit wiring and breaker protection accordingly.
Q: How is the 00591-21049-81 mounted on electric lift trucks?
A: The solenoid features a flat bracket mounting design. Align the mounting bracket holes with the truck frame or control box hole pattern. Secure with the appropriate bolts or screws. Ensure the solenoid body is not in contact with hydraulic lines or moving parts. Allow clearance for coil heat dissipation.
Q: Can the 00591-21049-81 solenoid be repaired or rewound?
A: No. Solenoid coils cannot be effectively repaired or rewound in the field. If the solenoid fails due to coil burnout, short circuit, or open windings, the entire unit must be replaced with a new 00591-21049-81 solenoid. Do not attempt to disassemble or rewind the coil.
Q: What environmental conditions affect solenoid performance?
A: Moisture, dirt, oil mist, and temperature extremes degrade solenoid performance. Seal electrical connectors to prevent corrosion. Avoid spray-washing directly on solenoids. Operate within -10 to 50 degrees Celsius if possible. Excessive heat reduces coil insulation life; ensure adequate ventilation and avoid stacking equipment that blocks cooling airflow.
Q: What should I check before installing a replacement 00591-21049-81?
A: Verify the control circuit voltage is exactly 24VDC and that the current draw does not exceed 100A. Confirm the mounting bracket hole pattern matches your truck frame. Check connectors and wiring for corrosion or damage. Test the control switch for continuity before powering the new solenoid. Clean the mounting surface and secure the solenoid firmly.