Spark Plug Working Principle: When the engine is running, electrode produces a spark of electricity, ignites the air/fuel mixture within the engine, the engine to work smoothly
The Spark Plug Main Structure: Insulator, Terminals, Central electrode, Side/Ground electrode, Gap, Outer metallic body
Model: For Crosstrek Sport Utility 4-Door, For Impreza Hatchback/Sedan 4-Door