CATElectrical Parts

45pp3 Pressure Sensor — Cat 320E 326E

This is a pressure sensor that measures and transmits fuel rail pressure data to the engine control module (ECM). It is built to meet CAT's exacting standards, providing accurate readings essential for optimal fuel system performance, unlike a worn sensor that may produce incorrect pressure signals. Operators may observe rough idling, engine misfires, a loss of power, or the engine control module logging fuel pressure fault codes.

Pressure Sensor – Part No 45pp3 – 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 TypeFuel Pressure Sensor
MaterialMetal, Plastic
ApplicationFuel System Pressure Monitoring
Service LifeReplace as needed based on diagnostics
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing pressure sensor may initially cause intermittent issues such as rough idling or a slight loss of engine power. If the sensor's readings become significantly inaccurate or fail completely, the engine may run poorly, stall, or trigger diagnostic trouble codes related to fuel pressure. Continued operation with incorrect fuel pressure data can lead to inefficient combustion and potential damage to fuel system components.

Installation Tip

Ensure the engine is off and the fuel system pressure has been safely relieved before attempting removal. Avoid using excessive force when threading the new sensor into the fuel rail, as this can damage the sensor or the fuel rail threads.

Service Note

Inspect the fuel filter and fuel lines for any restrictions or contamination that could affect fuel pressure readings.