Discover Toyota 4 Runner Ignition Plug Wires. Find Toyota 4 Runner Ignition Wires & Toyota 4 Runner Ignition Wires Replacement. Maintaining the ignition wires of your Toyota 4Runner is crucial for seamless engine performance and fuel efficiency. Regular inspection for wear, corrosion, and damage can prevent misfires, and ensuring they are securely connected will extend their lifespan. When experiencing rough idling or decreased gas mileage, it may signal the need for replacement ignition wires. For optimal conduction, choose high-quality wires made of durable materials such as silicone or Teflon. When shopping on our platform, select from a range of premium ignition wires designed to match OEM specifications for a perfect fit, ensuring a straightforward installation and long-lasting reliability for your 4Runner.