Description

Sierra’s 18-7554 Knock Sensor is designed for use in Mercruiser/Mercury MCM V6 and V8 (305, 350, and 496 CID) MPI Engines with ECM 555. It is interchangeable with Mercury Marine 878187 and Mercruiser Stern Drive 878187 and 8M6003194. Check manufacturer recommendations to ensure a proper fit before purchasing. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use in Mercruiser/Mercury MCM V6 and V8 (305, 350, and 496 CID) MPI Engines with ECM 555
Includes one knock sensor
Interchangeable with Mercury Marine 878187 and Mercruiser Stern Drive 878187 and 8M6003194
Check manufacturer recommendations to ensure a proper fit before purchasing
Each Sierra product meets or exceeds the original equipment part it replaces