NGK Laser Iridium Spark Plug Box of 4 (SILZNAR6D9)

NGK is known for making solid ignition components, and these Laser Iridium spark plugs are a prime example. If you're looking to replace the plugs in your 2016-2020 Chevrolet Spark, these are built to match the original equipment specifications. They use an iridium-tipped center electrode, which is significantly harder than platinum, giving you a more durable plug that maintains a consistent spark over time. This advanced design helps ensure reliable starts and smooth engine operation.

What really sets these apart is the combination of materials NGK uses. The pure alumina silicate ceramic insulator is strong and helps manage heat effectively, while the trivalent metal plating on the body resists corrosion and makes them easier to remove down the road. You'll also find a platinum pad on the ground electrode, which helps with even wear, especially in modern distributorless ignition systems. Plus, the copper core inside helps pull heat away from the firing tip, preventing overheating and keeping things running right.

This set comes with four plugs, which is exactly what you need for your Spark. They're designed as a direct replacement, so installation should be straightforward if you're comfortable working on your engine. Just remember to torque them to spec according to the manufacturer's instructions.