4 pieces Ignition Coilpacks For Mazda 3 L4 2.0L 2006-2013 178-8350 36349839Introductions: The traditional ignition system is mainly composed of a power supply, an ignition switch, an ignition coil, a distributor, a spark plug, etc. It is the basic element that transforms the low voltage electricity of the power supply into high voltage electricity. Commonly used ignition coils are divided into two types: open magnetic circuit ignition coil and closed magnetic circuit ignition coil. Feature: Condition: Brand New Warranty: 1