CATEngine Parts

171-3759 4 Pin Connector Limit Switch — Cat C11 C13

This 4-pin connector limit switch is an electrical component that monitors the position or presence of a mechanical part, sending a signal to the engine control module. Manufactured to meet OEM quality standards, it provides reliable and accurate switching compared to a worn or corroded switch that can cause intermittent signals or complete failure. Operators may experience erratic system behavior, warning lights, or a specific function failing to operate when this limit switch malfunctions.

4 Pin Connector Limit Switch – Part No 171-3759 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine 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

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

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

Part TypeLimit Switch
MaterialPlastic Housing, Metal Contacts
ApplicationElectrical System Control
Service LifeReplace as needed based on electrical diagnostics
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing limit switch might be an unexpected system shutdown or a warning light related to the monitored function. If ignored, the system controlled by the switch may cease to operate entirely, or operate erratically, potentially causing operational delays. Continued use with a faulty switch could lead to damage to related mechanical components due to lack of proper control.

Installation Tip

Ensure the electrical connector is clean and free of corrosion before plugging in the new switch. Avoid forcing the connector onto the switch, as this can damage the pins.

Service Note

Inspect the associated wiring harness and connectors for any signs of damage, chafing, or corrosion when replacing this limit switch.