The Caterpillar High Variable Reluctance Speed Sensor Model 191-8304 is a passive speed sensor that provides high-output speed measurement without the need for an external electrical power supply. This sensor is ideal for applications requiring precise speed monitoring, particularly in engine cam and transmission output scenarios.
| Attribute | Description |
|---|---|
| Brand | Caterpillar |
| Product Type | High Variable Reluctance Speed Sensor |
| Model Number | 191-8304 |
| Application | Engine cam, transmission output |
| Compatibility | Various Caterpillar machinery models |
| Installation | Bolt-n-go style mounting bracket |
| Construction | Injection molded nylon over magnet and coil |
| Accuracy | High position accuracy |
| Operation | Passive, no external power supply required |
| Signal Output | Alternating current, sinusoidal waveform |
| Bore Diameter | 0.73 inches |
| Overall Length | 2.57 inches |
| Connector Pin Count | 2-pin |
| Insert Length | 0.89 inches |
| Sensor Type | Speed |
| Output Voltage | Lower output voltage |
| Recommended Speed Range | Not recommended for use in applications <50 RPM |



















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