Product Description
Toyota OEM horn 00591-39642-81, 24VDC, 110 dB, 4.0 inch diameter, designed for electric lift truck applications. Durable thermoplastic housing and standard flange mount. No superseding or cross-reference part numbers available.
Specifications
Electrical
| Operating Voltage | 24VDC nominal |
| Sound Pressure Level | 110 dB at 1 meter |
Part Numbers
| OEM Part Number | 00591-39642-81 |
| Manufacturer Part Number | TY00591-39642-81 |
Performance Specifications
| Typical Duty Cycle | Intermittent, 10 cycles per minute maximum |
Frequently Asked Questions
Q: What are the specifications for the Toyota horn TO 00591-39642-81?
A: The TO 00591-39642-81 is a Toyota OEM electric horn for lift trucks with the following specifications: 24VDC nominal operating voltage, 110 dB sound pressure level at 1 meter, 4.0 inch diameter, intermittent duty cycle with 10 cycles per minute maximum, durable thermoplastic housing, and standard flange mount design.
Q: Which Toyota electric lift truck models use the TO 00591-39642-81 horn?
A: The TO 00591-39642-81 is an OEM Toyota part for electric lift trucks. Compatibility depends on equipment voltage system, horn bracket design, and control circuit configuration. Verify fitment with your specific model and serial number by consulting your equipment documentation or contacting our parts team.
Q: What is the sound output of the TO 00591-39642-81 horn?
A: The TO 00591-39642-81 produces 110 dB of sound pressure at 1 meter distance, measured at full 24VDC. This output level meets typical warehouse and dock safety standards for audible warning signals. Sound intensity may vary slightly with horn age and diaphragm condition.
Q: Can the TO 00591-39642-81 horn be used on non-Toyota lift trucks?
A: The TO 00591-39642-81 features a standard flange mount and 24VDC requirement. Horns with identical voltage, mounting, and electrical connector specifications from Crown, Raymond, or other manufacturers may be mechanically compatible. However, verify electrical connector type, relay circuit compatibility, and flange hole spacing before substituting.
Q: What is the operating duty cycle for the TO 00591-39642-81?
A: The TO 00591-39642-81 is rated for intermittent duty operation at a maximum cycle rate of 10 activations per minute. Continuous duty or higher cycle rates will cause rapid diaphragm fatigue, reduced sound output, and premature failure. Use the horn only for actual warning signals, not continuous operation.
Q: Are cross-reference or equivalent part numbers available for TO 00591-39642-81?
A: The TO 00591-39642-81 is a Toyota OEM part. No superseding or cross-reference part numbers are documented. For replacement options or compatibility with other brands, provide your truck model, year, and voltage system specifications to our parts team.