Mercury 305 CID - Thunderbolt V Ignition System; Identification

4B-14 - THUNDERBOLT IV AND V IGNITION SYSTEM 90-823225--1 1096
Thunderbolt V Ignition System
Identification
The Thunderbolt V ignition system uses the same distributor as the Thunderbolt IV system. The Ignition Control
Module and Knock Control Module are mounted with the ignition control module.
73999
a
b
a - Ignition Control Module
b - Knock Control Module