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The Nissan Quest Ignition Coil is a vital component responsible for generating the high voltage needed to ignite the fuel-air mixture inside the engine cylinders. Manufactured to meet OEM specifications, this ignition coil ensures consistent spark delivery, smoother engine operation, and improved fuel efficiency. A failing ignition coil can cause misfires, rough idling, reduced power, and poor fuel economy — replacing it helps restore optimal engine performance and reliability. Durable and easy to install, this ignition coil is ideal for maintaining the health and efficiency of your Nissan Quest engine.