CATEngine Parts

201-6617 Speed Sensor — Cat 3406 C15

This is a crankshaft or camshaft speed sensor designed to monitor the rotational speed of the engine's rotating components. It provides critical data to the Engine Control Module (ECM) for precise fuel injection and ignition timing, adhering to strict OEM quality for accuracy and longevity. Symptoms of a failing sensor include erratic engine RPM readings, poor idle quality, stalling, or the engine failing to start altogether.

Speed Sensor – Part No 201-6617 – 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 TypeEngine Speed Sensor
MaterialHigh-temperature resistant plastic, electronic components
ApplicationEngine timing and speed monitoring
Service LifeReplace as needed due to wear or failure
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a faulty speed sensor include fluctuating RPM readings or a rough idle. If left unaddressed, the engine may experience intermittent stalling or fail to start. Continued operation without a functioning speed sensor can lead to incorrect engine timing and potential internal damage.

Installation Tip

Ensure the sensor tip is clean and free from metallic debris before installation, as this can interfere with its magnetic pickup. Do not overtighten the sensor, as this can damage the threads or the sensor housing.

Service Note

Inspect the crankshaft or camshaft reluctor wheel for damage or debris that could affect sensor readings.