Premium LFR6A-11/G Spark Plugs engineered by Nissan Japan for precision performance. Constructed with iridium-tipped center electrodes and triple gasket sealing for maximum durability. Optimized heat range ensures efficient combustion in Toyota Camry and Celica engines. Laser-welded ground electrode resists corrosion in extreme temperatures. Direct OEM replacement with exact 22401-8H516 specifications. Factory-calibrated gap eliminates misfires and improves fuel economy. Nickel-plated shell prevents thread galling during installation. Includes copper-core conductor for superior spark energy transfer. Ideal for high-mileage vehicles requiring maintenance or performance upgrades. Batch-tested under JIS standards for consistent quality. Ships in manufacturer-sealed packaging with authentic SPP branding.