For a smoother running engine and better gas mileage, you can't go wrong with NGK iridium spark plugs. This 4-pack of NGK ILFR6G-E plugs is a top-tier choice. The iridium center electrode is super fine and durable, allowing for a strong, consistent spark and a much longer service life compared to standard copper plugs. They have a wider heat range to resist both carbon fouling and pre-ignition (that's knock or ping). NGK's patented triple gasket seal ensures no combustion gas can leak out, and the solid copper core improves heat dissipation. The nickel-plated shell resists corrosion. Basically, these are engineered to deliver reliable ignition, help restore performance, and potentially improve fuel efficiency in vehicles that specify this heat range. Always check your owner's manual or vehicle fit guide to confirm these are the right plugs for your car, truck, or motorcycle. A simple upgrade that makes a real difference in how your engine runs.
Free 30-day returns 
Free 30-day returns
