CATElectrical Parts

139-39905 24V Stop Shutoff Solenoid — Cat Excavator E320B E320C

This 24V stop shutoff solenoid is designed to control the engine's fuel supply, enabling it to be safely shut down when needed. Manufactured to meet high-quality standards, it ensures reliable operation and longevity, providing a superior alternative to worn or malfunctioning solenoids. Operators may experience difficulty starting the engine, the engine running continuously when it should stop, or an inability to shut down the engine if this solenoid fails.

24V Stop Shutoff Solenoid – Part No 139-39905 – CAT Spare Part
Part Specifications
BrandCAT
CategoryElectrical Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Disconnect main battery before working on electrical components. Use dielectric grease on all connector pins. Check ground connections — most electrical faults trace to poor grounds. Test with multimeter before installing new parts.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeStop Shutoff Solenoid
MaterialMetal and durable electronic components
ApplicationEngine fuel system
Service LifeReplace as needed based on diagnostic testing
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing solenoid might prevent the engine from shutting down completely or cause starting issues. If left unaddressed, the engine could potentially run uncontrollably, posing a safety risk. Continued operation with a faulty shutoff solenoid can lead to unintended engine running, increasing wear and fuel consumption.

Installation Tip

Ensure the electrical connector is clean and securely fastened to prevent intermittent operation. Do not apply excessive force when installing the solenoid into its housing.

Service Note

Inspect the engine's fuel filter and lines for any blockages or leaks when replacing the shutoff solenoid.