Premium Copper Core Electrode: High-conductivity copper center ensures faster heat dissipation and optimal spark performance, reducing misfires even under extreme engine conditions.

Precision Laser-Welded Tip: Advanced laser welding technology creates a seamless bond between the iridium alloy tip and ground electrode, guaranteeing consistent spark delivery and extended durability (50% longer lifespan vs. standard plugs).

Multi-Gap Ground Electrode Design: Patented triple-ground electrode configuration eliminates flame quenching, improving combustion efficiency for both turbocharged and naturally aspirated engines (ideal for high-performance/off-road applications).

Ceramic Insulator with Anti-Corrosion Coating: Ultra-pure alumina insulator resists voltage leakage up to 40kV, while the zinc-chromate plating prevents rust in marine/high-humidity environments.

Direct NGK 4629C7HSA Replacement: Meets OEM specifications for Honda Civic 1.8L (2006-2011), Acura TSX (2004-2008), and compatible with most 1.6L-2.4L 4-cylinder engines requiring heat range 7 plugs.