H4-2
Knock Sensor Switch Sender for Mercruiser Sensor 5.7 5.0 350 Mag EFI 806612T MPI 5.0 5.7 Mercury
New knock sensor for GM Small Block marine engines used by Mercruiser, OMC, Volvo, PCM, Marine Power, Crusader and others
Replaces Mercruiser 806612T
Replaces Volvo Penta 3850357
Fits GM 305 5.0, 350 5.7, 377 6.2, small block V8 engines only
Does not work with big block engine