Locate Mitsubishi Ignition Plug Wires & Mitsubishi Ignition Plugs Replacement. Replace Best Mitsubishi Combustion Plugs. Shop Mitsubishi Spark Plugs. Maintaining spark plugs is crucial for the optimal performance of your Mitsubishi, as these components are key to starting your engine and ensuring smooth operation. To extend their lifespan, regularly check and clean the plugs, ensuring they're free from debris and corrosion. Watch for signs like a rough idle or difficulty starting, which might signal it's time for a replacement. When selecting new spark plugs, opt for iridium or platinum types for greater durability and performance. Always choose plugs that match your model's specifications for the best results, and consider professional installation to guarantee peak engine efficiency. With the right care, your Mitsubishi's spark plugs can deliver reliable ignition and contribute to the longevity of your vehicle.