The Mercruiser knock sensor detects engine knock. It replaces Mercruiser OEM sensor 878187.
- Compatible engines: MCM/MIE GM V-6 and 305, 350, 496 MPI with ECM555
- Replacement part number: MAL9-33502 REC878187
- Product code: IC-18-7554
Shipping costs and delivery speed are calculated based on the delivery location.