Premium Double Iridium Spark Plugs – OEM SILZKR7B11 9723
Ultra-fine iridium center electrode ensures precise ignition and superior durability. Patented laser-welded tip resists corrosion for extended lifespan. Optimized heat range (SILZKR7B11) prevents pre-ignition, ideal for high-performance Hyundai/Kia engines. Multi-ground electrode design boosts fuel efficiency by 5-7%. Direct OEM replacement (9723) with exact thread pitch and torque specs. CNC-machined shell eliminates misfires in extreme temperatures (-40°C to 1,500°C). Perfect for city commuting, turbocharged engines, and stop-and-go traffic. Includes anti-fouling ceramic insulator for smooth cold starts. Bulk pricing available – global wholesale leader with factory-direct quality. Ships in OEM-sealed packaging.