NGK Iridium Spark Plug Box of 4 (SILKR8A-S)

If you're looking to replace the spark plugs on your 2007-2012 Acura RDX, these NGK Laser Iridium plugs are a solid option. They're built with an iridium-tipped center electrode, which is significantly harder than platinum, giving you better durability and a more consistent spark over time. This means your engine can run more efficiently and reliably.

NGK uses a pure alumina silicate ceramic insulator here, which is strong and helps manage heat effectively, preventing the plug from overheating. You'll also find a trivalent metal plating on the threads, which makes them easier to install without seizing and helps resist corrosion. These plugs are designed to be a direct OE replacement, so they fit right in and work with your RDX's ignition system, including distributorless setups where the ground electrode has a platinum pad for even wear.

This set comes with four plugs, which is exactly what you need for your RDX. They're a good choice if your vehicle originally came with iridium alloy plugs and you want to maintain that level of performance and longevity.