A-B1825009-AI TRIGGER-COILOne New Aftermarket Replacement Trigger Coil Fits Briggs & Fits Stratton Engines This aftermarket replacement trigger coil (also called a pickup coil or pulser coil) is a key component of the ignition system in select Fits Briggs & Fits Stratton small engines. The trigger coil sends a timing signal to the ignition module, triggering the spark at the correct moment in the engine cycle for reliable starting and smooth operation. It is used on Fits