High-Performance Iridium Spark Plugs IK16 (5303) & IK20 (5304)
Ultra-fine 0.6mm iridium center electrode ensures precise ignition, reduced voltage demand, and extended lifespan (up to 2x longer than platinum). Laser-welded construction eliminates misfires under extreme temperatures. Optimized for high-compression engines (turbocharged, hybrid, or performance vehicles). OE-compatible fitment for smooth acceleration and fuel efficiency. Exclusive anti-corrosion alloy shell resists oxidation in humid or salty environments. Pre-gapped for hassle-free installation. Bulk pricing available—wholesale discounts for auto repair shops, distributors, and fleet managers. Global shipping with guaranteed lowest price.