Replace Mazda 3 Series Ignition Plug Wires. Find Mazda 3 Series Ignition Plug. Purchase Best Mazda 3 Series Combustion Plugs & Mazda 3 Series Spark Plugs. Maintaining the spark plugs in your Mazda 3 Series is crucial for optimal performance and fuel efficiency. Regularly inspecting these components for wear and carbon build-up can signal the need for replacement, typically around every 30,000 miles. To extend their lifespan, ensure your engine is running properly and use high-quality fuel. When selecting new spark plugs, opt for iridium or platinum types for their durability and superior performance. Installation requires precision?always adhere to the manufacturer's torque specifications and apply anti-seize to the threads to prevent sticking. Shop our selection of premium spark plugs and keep your Mazda 3 Series running smoothly.