CATEngine Parts

203-6797 Speed Sensor — Cat 3056 3054

This is a Speed Sensor, an electronic component that monitors the rotational speed of the engine's crankshaft or camshaft and transmits this data to the engine control unit (ECU). It is built to OEM specifications for accurate signal generation, ensuring the ECU can precisely manage fuel injection and ignition timing, unlike a faulty sensor that provides erratic or no data. Operators may observe engine misfires, rough idling, stalling, or the illumination of the check engine light when this speed sensor malfunctions.

Speed Sensor – Part No 203-6797 – 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 TypeSpeed Sensor
MaterialPlastic and electronic components
ApplicationEngine speed monitoring
Service LifeReplace as needed based on diagnostic codes
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of a failing speed sensor is often intermittent engine performance, such as stumbling or hesitation during acceleration. If the sensor fails completely, the engine may refuse to start or stall unexpectedly. Continued operation without a functioning speed sensor can lead to severe drivability issues and potential damage to other engine components.

Installation Tip

Ensure the mounting surface on the engine block or flywheel housing is perfectly clean and free of metal shavings before installing the new sensor. Avoid overtightening the sensor, as this can damage its housing or affect its magnetic field.

Service Note

Inspect the engine wiring harness and connectors for any signs of damage or corrosion when replacing the speed sensor.