NGK Laser Iridium Spark Plug Box of 4 (IFR5J11)

NGK is a well-known name for reliable ignition components, and their Laser Iridium spark plugs are a prime example of that reputation. This particular set, the IFR5J11, is designed to be a direct replacement for many vehicles, including models like the Chevrolet Tracker and several Suzuki vehicles such as the Aerio, Grand Vitara, and SX4. These plugs are built to provide a strong, stable spark, which is crucial for efficient combustion and overall engine health.

What sets these plugs apart is the use of iridium for the center electrode. Iridium is incredibly hard and has a very high melting point, making it six times more durable than platinum and ideal for today's high-tech engines. This fine wire design helps ensure a consistent spark, leading to better performance and longer life. The pure alumina silicate ceramic insulator helps with heat transfer, keeping the plug from overheating, while the trivalent metal plating on the exterior helps prevent corrosion and seizing, making them easier to remove down the road. Most of these plugs also include a platinum pad on the ground electrode for even wear, especially in distributorless ignition systems.

This box contains four spark plugs, enough for most 4-cylinder engines. They are designed to meet or exceed original equipment specifications, so you can be confident in their fit and function. For best results, always refer to your vehicle's service manual for the correct installation procedure and torque specifications.