MerCruiser Thunderbolt IV Ignition Amplifier Box 305 5.0L V8 V822 Stamped Camshaft This was pretty much found

This was pretty much found on all Bravo Applications (1

Exactly what you see in the pictures

This would have been found on OMC Stringer and Cobra Applications using the standard / common Concealed Side Mount Control unit that was found in boats from 1980-1998

Removed from a OMC 1982 Stringer 800 V6 / V8 Gearcase (Found on 3

MerCruiser Thunderbolt IV Ignition Amplifier Box 305 5.0L V8 V822 Stamped Camshaft This was pretty much foundItem Details MerCruiser Thunderbolt IV Breakerless Electronic Timing High Energy Ignition Amplifier Module (V822 Stamp) Good Condition Please Note.. The really the only thing that can happen with these is that THEY ARE WORKING OR THEY ARE NOT. The primary symptom of a bad ignition amplifier is NO SPARK AT ALL. Always make sure you connections are clean & tight while troubleshooting your existing one. Generally Found Mercruiser V8 Models (305 5. 0L)