MSD 8278 Hall Effect Crank Sensor

SKU: MSD-8278 Categories: ,


2 in stock


The MSD 8278 sensor is the replacement Hall Effect Sensor for flying magnet crank trigger setups using a 3/4-16″ threaded. This sensor is a Hall Effect sensor, meaning it outputs a square wave signal, which is ideal for use with most Electronic Fuel Injection Systems. This sensor is to only be used with a trigger wheel with “flying magnets”. It does not detect a ferrous steel target.


  • Most accurate way to trigger your electronic fuel injection (EFI)
  • 3-Wire Hall Effect sensor that is less susceptible to noise interference
  • Supplied with mating 3-pin connector and pins and seals
  • Direct Replacement for Holley 554-118 Sensor
  • .040″ – .080″ Gap Recommended


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