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5I-7579 Speed Sensor for Caterpillar | Aftermarket Parts
5I-7579 Speed Sensor for Caterpillar helps monitor rotational speed and provides accurate speed signals for compatible Caterpillar equipment. It is a replacement option for aftermarket maintenance and repair.
5I-7579 Speed Sensor for Caterpillar
The 5I-7579 Speed Sensor is a replacement magnetic sensor for compatible Caterpillar equipment. It mounts in the flywheel housing and detects flywheel or crankshaft movement to provide speed and position signals to the engine control system.
The sensor plays an important role in engine speed monitoring and timing control. A damaged or faulty sensor may cause an incorrect speed signal, starting problems, warning messages, or abnormal engine operation.
The 5I-7579 Speed Sensor for Caterpillar is suitable for aftermarket maintenance and repair. It can be a practical replacement option for equipment owners, repair shops, parts distributors, and B2B machinery parts buyers.
Product Specifications
| Item | Details |
|---|---|
| Part Number | 5I-7579 |
| Product Type | Speed Sensor / Magnetic Sensor |
| Sensor Type | Flywheel Housing Magnetic Sensor |
| Application | Caterpillar Equipment |
| Condition | Aftermarket Replacement |
| Main Function | Monitors flywheel or crankshaft speed and position |
| Compatible Models | 320-A, 320-A L, 315-A, 312-A, 315-A L, 320 L, 311-A, 320-A N* |
| Installation Position | Flywheel Housing |
| Brand Reference | Caterpillar / Cat |
| Compatibility | Check by part number and machine serial number |
*Compatibility should be confirmed against the machine configuration before ordering.
Key Features
- Replacement Caterpillar speed sensor
- Magnetic sensing design
- Monitors rotational speed and position
- Designed for demanding equipment applications
- Suitable for aftermarket maintenance
- Available for B2B replacement parts sourcing
Application and Function
The 5I-7579 sensor detects movement from the flywheel or crankshaft and converts this movement into an electrical signal. The engine control system can use this information for speed monitoring and engine timing functions.
Caterpillar lists the 5I-7579 as a Flywheel Housing Magnetic Sensor. The official Cat Parts Store also identifies it as a component used to monitor flywheel or crankshaft position and rotational speed.
If you are looking for more Caterpillar speed sensors, you can visit our [Caterpillar Sensors] category to find additional aftermarket sensor products.
For other electrical components used on Caterpillar equipment, explore our [Electric Parts] category.
How to Choose the Correct 5I-7579 Replacement
Before ordering a 5I-7579 replacement sensor, check the original part number and machine information carefully.
We recommend checking:
- Original part number
- Caterpillar machine model
- Machine serial number
- Sensor type
- Installation position
- Connector and electrical specifications
- Original sensor dimensions
Caterpillar also provides Parts Reference Guides to help users identify common maintenance and replacement part numbers. The official guides allow users to search parts by equipment type and provide part numbers and application information.
You can also check the official [Cat Parts Store] when you need to verify the original Cat part number or equipment compatibility. Cat’s parts store supports searches by part number, equipment category, and machine model.
Aftermarket 5I-7579 Speed Sensor
RJT PARTS supplies aftermarket Caterpillar sensors and switches for heavy equipment applications. Our product range includes speed sensors, pressure sensors, temperature sensors, fuel water level sensors, and other electrical components.
If you need a 5I-7579 Speed Sensor, please provide the original part number and machine model when making an inquiry. Our team can help check the available replacement option and application information.
For more Caterpillar replacement sensors, visit our Caterpillar Sensors category.
For additional heavy equipment electrical components, see our Electric Parts category.





