DENSO 3077 Iridium Long Life Spark Plug

The DENSO 3077 is a premium iridium spark plug engineered to deliver reliable ignition performance, extended service life, and improved fuel efficiency over conventional copper-core plugs. DENSO is one of the world's leading original equipment (OE) spark plug suppliers, and this plug is built to the same exacting standards found on the factory assembly line.

Key Features:

• Iridium Center Electrode: Ultra-fine 0.4mm iridium tip provides a more focused spark for consistent, efficient ignition
• Extended Service Life: Iridium's extreme hardness resists wear, delivering a longer replacement interval compared to standard copper or platinum plugs
• Improved Fuel Efficiency: Precise spark delivery promotes more complete combustion, helping to optimize fuel economy
• OE-Quality Construction: Built to original equipment specifications for a direct, no-modification fit
• Corrugated Ribs: Insulator design helps prevent flashover and misfires
• Purified Alumina Powder Insulator: Provides superior heat dissipation and dielectric strength
• Trivalent Metal Plating: Offers superior anti-corrosion and anti-seizing properties for easy installation and removal

The DENSO 3077 spark plug is sold individually and is ideal for drivers seeking a high-performance, long-lasting ignition solution that meets or exceeds OEM standards.