CATEngine Parts

112-4009 Water Temperature Sensor — Cat 3054 312

This is a Water Temperature Sensor that monitors engine coolant temperature and transmits this data to the engine control unit for optimal performance. It is manufactured to meet stringent OEM quality standards, ensuring accurate readings unlike a worn sensor that provides erratic or no data. Operators may notice inaccurate temperature gauge readings, engine overheating warnings, or poor engine performance when this sensor fails.

Water Temperature Sensor – Part No 112-4009 – 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 TypeEngine Coolant Temperature Sensor
MaterialBrass and electronic components
ApplicationEngine cooling system
Service LifeReplace as needed based on diagnostic codes
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

An initial symptom of a failing water temperature sensor is an inaccurate reading on the engine temperature gauge. If left unaddressed, the engine control module may receive incorrect data, leading to improper fuel mixture and potentially reduced engine power or increased fuel consumption. Continued operation with a faulty sensor can lead to inefficient engine operation and potential damage from overheating.

Installation Tip

Ensure the engine block cooling passage is clean and free of debris before installation to guarantee a proper seal. Avoid overtightening the sensor, as this can damage the threads in the engine block or the sensor itself.

Service Note

Inspect the engine coolant level and condition, and check the radiator and fan for proper operation when replacing the water temperature sensor.