Product Description
Caterpillar CT 973970 is a 12VDC electric horn designed for electric lift truck applications, featuring 115 dB nominal output, 4.00 inch diameter, and panel mount configuration. Compatible with a wide range of OEM equivalents and validated for Caterpillar electric forklift models.
Specifications
Electrical
| Rated Voltage | 12VDC |
| Sound Output | 115 dB at 4.00 inch diaphragm (nominal) |
| Connection Type | 2 terminal posts |
| Current Draw | Maximum 3.5A at 12VDC |
Material & Construction
| Diaphragm Material | Steel diaphragm |
Part Numbers
| OEM Part Number | CT 973970 |
| Cross-Reference Part Numbers | 515100802, 05151-04001, 091A0405200, 0973970 |
| Supersedes/Replaces | NF91A0405200 |
Frequently Asked Questions
Q: What voltage and sound output does the CT 973970 electric horn provide?
A: The CT 973970 is rated for 12 VDC operation and delivers 115 dB nominal sound output at a 4.00 inch diaphragm diameter. This sound level is suitable for standard warehouse and yard warning applications on Caterpillar electric lift trucks.
Q: Is the CT 973970 compatible with other lift truck brands?
A: The CT 973970 is an OEM Caterpillar horn (cross-references: 515100802, 05151-04001, 091A0405200, 0973970). It is validated for Caterpillar electric forklift models. For compatibility with Toyota, Raymond, Yale, Crown, or other brands, verify voltage and connector type match your equipment.
Q: What is the mounting configuration and connection type?
A: The CT 973970 uses a panel mount configuration with two terminal posts for connection. The 4.00 inch steel diaphragm is mounted to a control panel or horn bracket. Two-wire connection allows standard momentary activation from the operator control.
Q: What material is the diaphragm and why is it important?
A: The CT 973970 features a steel diaphragm, which provides durability and consistent acoustic output under repeated use in electric lift truck environments. Steel construction resists corrosion and maintains tone quality over the life of the horn.
Q: Does the CT 973970 supersede any older Caterpillar horn models?
A: Yes. The CT 973970 supersedes and replaces Caterpillar part NF91A0405200. If your equipment currently uses the NF91A0405200, the CT 973970 is the current OEM replacement.