The Bosch Ignition Coil is a direct-fit replacement for Mazda CX-3 2.0L Petrol models built from 2016 to 2020. Primary resistance is approximately 0.5 ohms with secondary output above 40 kV for a strong spark under boost and load. Weak coils typically show as a rough idle, a flashing check engine light and a cylinder-specific misfire code. Fitting new spark plugs at the same time protects the new coil from excessive secondary voltage load. The Epoxy Resin encapsulation resists vibration, engine bay heat and moisture ingress. The connector and mounting flange are a direct match for the factory loom, so no adaptors are needed. New stock, 12 Months warranty, and dispatched from our Australian warehouse.