Engine Speed (Crankshaft) Sensor 68371847AA

Maintain precise engine management and smooth performance with the genuine engine speed sensor (part 68371847AA). Also known as the crankshaft position sensor, this Hall-effect device monitors crankshaft rotation, providing critical RPM and position signals to your vehicle’s ECU for optimal ignition timing and fuel delivery.

Key Benefits

• Exact OEM Fit
  Molded connector and mounting flange match factory dimensions for straight-forward, no-modification installation.

• High-Precision Measurement
  Hall-effect sensing element delivers accurate, noise-resistant crankshaft speed and position data to the engine control unit.

• Durable Construction
  Robust polymer housing and sealed electronics resist heat, oil splash and vibration in the engine bay.

• Improved Engine Performance
  Ensures correct ignition timing, smooth idling and precise fuel injection, reducing misfires and enhancing drivability.

• Plug-and-Play Replacement
  Retains the original wiring harness connector; simply unclip the old sensor and plug in the new unit.

Vehicle Compatibility

Fits a range of Fiat, Alfa Romeo and Lancia models equipped with the 1.4–2.4 L petrol and diesel engines, including but not limited to:

• Fiat Punto, Bravo, Doblo

• Alfa Romeo 147, 156, Giulietta

• Lancia Ypsilon, Delta

Always verify fitment by matching the part number on your existing sensor or consulting your VIN.

Technical Specifications

• Part Number: 68371847AA

• Sensor Type: Hall-effect crankshaft position sensor

• Connector: 3-pin OEM plug

• Operating Temperature: –40 °C … +125 °C

• Housing Material: High-temperature nylon with EPDM seal

• Cable Length: Approx. 200 mm

• Warranty: 24 months genuine-parts coverage

Installation Overview

1. Disconnect the battery negative terminal to disable the ECU.

2. Locate the old sensor on the engine block near the crankshaft pulley or flywheel housing.

3. Unplug the electrical connector and remove the mounting bolt(s).

4. Extract the old sensor, clean the mounting bore of debris and oil.

5. Install the new sensor, tighten the bolt to the factory torque spec, and reconnect the plug.

6. Reconnect the battery and start the engine to verify smooth operation and correct RPM readings.