Stihl Ignition Coil For BR340 BR420 SR340 SR420 Get link Facebook X Pinterest Email Other Apps Part description: Stihl 4203 400 1302 ignition coilReplacement ignition coil for Stihl BR340, BR340L, BR420, BR420C, SR340 and SR420 blowers.Also refered to as 4203 400 1302 ignition moduleOther part numbers:42034001302 Stihl Parts | Stihl Parts Lookup