CATEngine Parts

3e-6451 Temperature Switch — Cat C15

This temperature switch is a critical sensor for the engine's cooling system, monitoring coolant temperature to regulate fan speed and alert operators to overheating conditions. It is manufactured to meet stringent OEM quality standards, ensuring reliable operation compared to a worn or faulty switch that may provide inaccurate readings. Operators may observe the engine temperature gauge fluctuating erratically, the cooling fan running constantly at high speed, or an engine overheat warning light illuminating when this switch fails.

Temperature Switch – Part No 3e-6451 – 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 TypeTemperature Sensor/Switch
MaterialBrass and plastic composite
ApplicationEngine cooling system monitoring
Service LifeReplace every 4,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

An initial sign of a failing temperature switch is an inaccurate engine coolant temperature reading on the dash gauge. If ignored, the engine may begin to overheat or the cooling fan may not engage when needed, leading to reduced engine performance. Continued operation without addressing the faulty switch risks severe engine damage due to sustained high temperatures.

Installation Tip

Ensure the engine block surface where the switch threads in is clean and free of debris before installation. Overtightening the switch can damage the threads in the engine block or the switch itself.

Service Note

Inspect the coolant level and condition, and check the radiator and fan shroud for obstructions when replacing the temperature switch.