MerCruiser Thunderbolt IV Ignition Amplifier Box 305 5.0L V8 V822 Stamped Piston Sets Superseded to 3861456

Superseded to 3861456

Please Inspect Pictures to get the best idea of condition

Shift Shaft Grommet: 25-822408

MerCruiser 165hp

MerCruiser Thunderbolt IV Ignition Amplifier Box 305 5.0L V8 V822 Stamped Piston Sets Superseded to 3861456Item Details MerCruiser Thunderbolt IV Breakerless Electronic Timing High Energy Ignition Amplifier Module (V822 Stamp) Good Condition Please Note..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)