DENSO 3018 Standard Spark Plug U-Groove Design

The DENSO 3018 is a standard spark plug engineered to deliver reliable ignition performance for a wide range of automotive applications. This precision-manufactured spark plug features DENSO's innovative U-Groove ground electrode design, which creates a larger and more accessible spark area for improved flame kernel development.

Key Features:

• U-Groove ground electrode design for enhanced ignitability and combustion efficiency
• Copper core construction for superior heat dissipation and thermal conductivity
• Trivalent metal plating provides excellent anti-corrosion and anti-seizing properties
• Purified alumina powder insulator for superior dielectric strength and heat transfer
• Machine-rolled threads to prevent cross-threading and ensure proper installation
• OEM-quality construction meets or exceeds original equipment specifications

DENSO's U-Groove technology positions the spark gap at the edge of the ground electrode rather than across the top, allowing the air-fuel mixture to enter the gap more easily. This design promotes faster flame propagation, resulting in more complete combustion, improved fuel efficiency, and reduced emissions. The copper core center electrode ensures optimal heat range performance across varying engine loads and operating conditions.