Product Description
The Toyota 24VDC horn (00591-27477-81) delivers high-output audible warning (>95 dB) for electric pallet jacks and lift trucks. Built with a robust formed steel diaphragm and rated for continuous-duty operation, this horn features 2-terminal wire lead connections and operates reliably at nominal 24VDC with current draw under 2.5A. The anti-corrosion steel construction withstands warehouse and outdoor environments, making it an ideal replacement for select Toyota electric lift truck applications.
Specifications
Electrical
| Nominal Voltage | 24VDC |
| Current Consumption | Less than 2.5A at 24VDC |
| Sound Output | >95 dB |
| Connection Type | 2-terminal wire leads |
Material & Construction
| Diaphragm Construction | Formed steel with anti-corrosion coating |
Part Numbers
| Manufacturer Part Number | 00591-27477-81 |
| Cross-Reference Part Numbers | Replaces 00591-27477-71, supersedes 00591-27477-70, equivalent to 00591-27477-80 |
Performance
| Duty Cycle | Continuous duty at rated voltage |
| Operating Orientation | Mountable in any position |
Frequently Asked Questions
Q: What are the specifications of the TO 00591-27477-81 24VDC horn?
A: The TO 00591-27477-81 is rated for 24VDC operation with a maximum current draw of 2.5A. It produces a high-output audible warning greater than 95 dB and features a steel diaphragm designed for continuous-duty operation on Toyota electric lift trucks. Connection is via 2-terminal wire leads.
Q: Which Toyota lift truck models are compatible with the TO 00591-27477-81 horn?
A: The TO 00591-27477-81 is designed for select Toyota electric pallet jacks and lift truck models rated at 24VDC system voltage. Verify your equipment specifications before ordering. This horn is not suitable for 12VDC or 48VDC systems.
Q: What cross-reference part numbers are available for the TO 00591-27477-81?
A: The TO 00591-27477-81 replaces earlier version 00591-27477-71, supersedes 00591-27477-70, and is equivalent to 00591-27477-80. Verify which cross-reference number matches your equipment documentation before ordering.
Q: Can the TO 00591-27477-81 horn be repaired or must it be replaced?
A: The 24VDC horn assembly is sealed and not field serviceable. If the horn fails to produce audible output, does not sound at full volume, or draws excessive current beyond 2.5A, replace the entire assembly. Do not attempt to disassemble or repair the diaphragm.
Q: What is the expected lifespan of the TO 00591-27477-81 horn?
A: Continuous-duty horns typically last 5 to 10 years depending on usage frequency and environmental exposure. Horns used in high-traffic warehouse or outdoor cold storage environments may have reduced lifespan. Replace if audible output degrades or connection becomes intermittent.