Product Description
Toyota 00591-51257-81 is a keyed ignition switch for electric lift trucks, supporting 2-position On/Off operation, rated at 10A 24VDC, with screw terminals and a panel mount. Supersedes part 00591-51256-81 and equivalent to 00591-5125681.
Specifications
Electrical
| Rated Voltage | 24VDC nominal |
| Contact Rating | 10A at 24VDC |
Material & Construction
| Material Specification | SAE 303 stainless steel key blade |
| Finish | Matte nickel-plated housing |
Part Numbers
| OEM Part Number | 00591-51257-81 |
| Manufacturer Part Number | 00591-51257-81 |
| Cross-Reference Part Numbers | 00591-51256-81; 00591-5125681 |
| Supersedes/Replaces | 00591-51256-81 |
Frequently Asked Questions
Q: What is the rated voltage and contact current for the TO 00591-51257-81?
A: This ignition switch is rated at 24VDC nominal with a contact rating of 10A at 24VDC. Do not use in circuits exceeding 24VDC or at currents above 10A.
Q: Which part numbers does the TO 00591-51257-81 replace or cross-reference?
A: The TO 00591-51257-81 supersedes and directly replaces the 00591-51256-81. Cross-reference part number 00591-5125681 also refers to this component. Check your equipment documentation to confirm which number applies to your truck.
Q: What material is the key blade made from?
A: The key blade is fabricated from SAE 303 stainless steel, providing corrosion resistance and durability in material handling environments. This material specification ensures long-term reliability and maintains electrical conductivity through the keyed interface.
Q: Is the TO 00591-51257-81 compatible with Toyota, Crown, and Raymond lift trucks?
A: This is a Toyota OEM component. It is certified for Toyota electric lift trucks. Verify compatibility with Crown, Raymond, or other brands by confirming connector type, voltage rating, and mounting dimensions match your specific model.
Q: What is the operational lifespan of this switch?
A: The TO 00591-51257-81 is rated for continuous reliable operation with proper maintenance. Lifespan depends on switching frequency and electrical load conditions. Replace if the key does not hold a firm position, the switch fails to complete circuits, or corrosion appears on terminals.
Q: How should this switch be maintained?
A: Periodically inspect the key blade and keyed interface for dirt or corrosion and clean if necessary. Check screw terminal connections for tightness and verify no damage to the barrel housing. Replace the switch if electrical continuity fails or the actuator no longer functions smoothly.