NGK Double Platinum Spark Plug Box of 4 (PLZKAR6A-11)

The dual platinum surfaces on these NGK spark plugs are laser welded, which means they wear down very slowly. This slow wear rate is key to maintaining stable idling and ensuring your engine runs efficiently over the long haul. They're built as an OE equivalent replacement, meaning they meet the same standards as the plugs that came with your Nissan Frontier or other compatible vehicles right from the factory.

Inside, you'll find a high-grade pure alumina silicate ceramic insulator that's strong and helps transfer heat away from the plug's tip. This, along with a 98% pure copper core, helps prevent the spark plug from overheating, which is crucial for reliable starts, especially in colder weather. The trivalent metal plating on the threads is a nice touch, offering good protection against corrosion and making them easier to thread in without seizing during installation.

These plugs are a solid option if your vehicle originally came with fine wire platinum alloy plugs. You can expect improved fuel efficiency and lower emissions compared to older, conventional nickel spark plugs. The corrugated ribs on the insulator help prevent flashover, ensuring a strong spark every time.