CATElectrical Parts

1978392 Sensor Gp- Temperature — Cat 140H 143H

This is a temperature sensor that monitors engine coolant or oil temperature, crucial for the engine control system. 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 a check engine light when this sensor fails.

Sensor Gp- Temperature – Part No 1978392 – 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 TypeTemperature Sensor
MaterialBrass and electronic components
ApplicationEngine temperature monitoring
Service LifeReplace as needed based on diagnostic codes
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of failure is often an inaccurate temperature gauge reading or an illuminated engine warning light. If left unaddressed, the engine control module may receive incorrect data, leading to suboptimal performance or increased fuel consumption. Continued operation with a faulty sensor risks engine damage due to undetected overheating.

Installation Tip

Ensure the engine is completely cool before attempting removal to avoid burns and potential damage to the sensor port. Do not overtighten the new sensor into the engine block, as this can damage the threads or the sensor itself.

Service Note

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