The YNF16997 Fuel Water Level Sensor (part number 423-6434) is engineered as a precise and dependable replacement for the CAT325C excavator. This sensor detects the presence of water in the fuel system and monitors fuel levels to help protect the engine from fuel contamination and prevent performance issues. Built with durable, corrosion-resistant materials, it ensures stability and accuracy even under tough operating environments.

• Direct replacement for 423-6434

• Designed for CAT325C fuel systems

• Accurately detects water presence and fuel levels

• Helps protect engine components from contaminated fuel

• Robust construction for long service life

• Stable performance under vibration and temperature changes

• Easy installation with OEM-compatible fittings

• Supports efficient fuel system maintenance

• Suitable for CAT325C excavators

• Used to monitor water content and fuel level in diesel fuel tanks

• Ideal replacement when the original sensor malfunctions or shows inaccurate readings

• Part identification assistance

• Installation and troubleshooting guidance

• Full range of CAT excavator sensors and electrical components available

• Individually packed with foam protection

• Shipped in durable cartons to prevent damage

• Neutral or YNF-branded packaging options available

Q: How do I confirm if this sensor fits my CAT excavator?
A: Share your part number or machine serial number for verification.

Q: What does this sensor detect?
A: It measures fuel level and detects water contamination in the fuel.

Q: Is installation difficult?
A: No, it is designed for easy, direct-fit replacement.

Q: Why is a fuel water level sensor important?
A: It helps prevent engine damage caused by water in diesel fuel.

Q: Can this sensor be used on other CAT models?
A: Compatibility may vary—contact us for confirmation.