CATEngine Parts

223-0309-2230309 — Water Temperature Sensor 223 0309

This is a water temperature sensor that monitors the engine coolant temperature and sends this vital information to the engine control unit or gauge. Constructed with robust materials to withstand engine bay heat and vibration, it provides accurate readings unlike a faulty sensor that gives incorrect or no data. Operators may observe fluctuating or inaccurate temperature readings on the gauge, or trigger a check engine light.

Water Temperature Sensor 223 0309 – Part No 223-0309-2230309 – 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
MaterialBrass and electronic components
ApplicationEngine cooling system monitoring
Service LifeReplace when faulty or inaccurate readings occur
CompatibilityCAT K4N, S3L2, S4L2
ConditionNew — OEM specification aftermarket

Failure Symptoms

An initial sign of a failing water temperature sensor is an inaccurate reading on the temperature gauge, showing either too high, too low, or erratic fluctuations. If the sensor fails completely, the gauge may read cold constantly, or the engine warning light may illuminate, potentially leading to the engine running inefficiently or overheating unnoticed. Operating an engine with an incorrect temperature reading risks damage from overheating or poor performance.

Installation Tip

Ensure the engine is completely cool before attempting to remove the old sensor to avoid burns. Use thread sealant specifically designed for high-temperature applications on the new sensor's threads.

Service Note

Check the coolant level and condition, and verify the thermostat is functioning correctly when replacing the water temperature sensor.