Upgrade your engine with the Original Denso Iridium Spark Plug SC20HR11 (OEM Part 90919-01253). Manufactured in Japan, these premium long-life plugs feature a 0.7mm ultra-fine iridium center electrode and a platinum-tipped ground electrode. They deliver exceptional ignition efficiency, smoother idling, and enhanced fuel economy while maximizing acceleration. Engineered for extreme durability, they offer a lifespan of up to 80,000–100,000 miles to reduce replacement frequency.Perfect fit for popular 1ZR, 2ZR, and 3ZR engines. Fully compatible vehicles include:Toyota: Fielder, Axio, Auris, Vitz, Wish, Prius, Noah, Voxy, Harrier, Premio, Ractis, RAV4, Avensis, Passo, Probox.Lexus: CT200h, NX200.Mazda: CX-3.Buy this brand new set to eliminate engine misfires, restore your vehicle’s horsepower, and ensure fast cold starts!