Sierra GM V8 Big Block Knock Sensor
The Sierra 18-7700 Sensor is designed to provide the applicable engine or instrumentation signal in Mercruiser applications.
Fits:Â MCM/MIE 4.3L MPI, 5.0L MPI, MX6.2 MPI With ECM 555 & 350 Mag MPI, Black Scorpion Tow Sports
Fits:Â 377 Tow Sports, 7.4L MPI (L29), MCM 496 Mag & HO & MIE 8.1S & HO & MCM/MIE 8.2 Mag
Need help with fitment? Contact us with your engine model and serial number and we'll help check suitability.
What is Sierra 18-7700?
Sierra 18-7700 is a sensor.
Which part numbers cross-reference Sierra 18-7700?
This listing cross-references OMC 3857487, Volvo Penta 3857487, Crusader R020041 and EMP 1300-13600. See the Cross References & Alternative Products section above for linked alternatives where available.