DENSO 3311 Standard Spark Plug U-Groove Design

The DENSO 3311 is a standard spark plug engineered with DENSO's U-Groove ground electrode design for superior ignition performance. This innovative electrode configuration creates a larger flame kernel and optimizes the spark path, resulting in more complete fuel combustion and improved engine efficiency.

Key Features:

• U-Groove ground electrode design for enhanced ignitability and flame propagation
• Copper core construction for excellent heat dissipation and thermal performance
• Nickel-plated housing resists corrosion and seizing in aluminum cylinder heads
• Solid copper core maximizes heat transfer away from the firing tip
• OEM-quality construction for reliable performance and long service life
• 14mm thread diameter with standard reach design

DENSO spark plugs are designed to meet or exceed original equipment specifications, providing dependable ignition for a wide range of automotive applications. The U-Groove design ensures consistent spark delivery across varying engine loads and operating conditions.