4244 400 1303 STIHL Ignition Module – Genuine OEM Ignition System Coil4244 400 1303 STIHL Ignition Module Genuine OEM Ignition System Coil The STIHL Ignition Module (4244 400 1303) is a genuine OEM ignition coil designed for select STIHL backpack blowers and mistblowers. This module is a critical component of the ignition system, responsible for generating the high voltage spark required to ignite the air fuel mixture inside the engine cylinder. Ignition modules are exposed to continuous heat cycles and vibration during