CATElectrical Parts

3851173 Air Pressure Sensor — Cat 12M 2 12M 3

This is an air pressure sensor designed to monitor and report the intake manifold or boost air pressure to the engine control module. Manufactured to precise standards, it provides accurate readings essential for optimal engine performance and fuel efficiency, unlike a faulty sensor that may give incorrect data. Observable symptoms include a check engine light, loss of engine power, rough idling, or increased exhaust smoke.

Air Pressure Sensor – Part No 3851173 – 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 TypeAir Pressure Sensor
MaterialPlastic, Metal
ApplicationEngine intake system
Service LifeReplace as needed based on diagnostics
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

A common initial symptom is the illumination of the check engine light, often accompanied by a noticeable decrease in engine power. If the issue persists, the engine may run roughly, hesitate during acceleration, or produce excessive exhaust smoke. Ignoring these symptoms can lead to poor fuel economy and potential damage to other engine components.

Installation Tip

Before installing, ensure the sensor port threads are clean and free of debris to achieve a proper seal. Avoid using excessive force when threading the sensor, as this can damage the sensor or the engine component it screws into.

Service Note

When replacing the air pressure sensor, it is advisable to inspect the air intake system, including hoses and clamps, for any leaks or restrictions.