Denso 3119 Spark Plug

Reliable Ignition Performance for Select Vehicles

The Denso 3119 spark plug from the U-Groove Conventional line offers dependable ignition for a range of vehicles including Audi A6, Toyota Corolla, and Nissan Pathfinder. Designed with precision materials and a unique U-groove ground electrode tip, this spark plug supports efficient combustion and consistent engine performance.

• U-groove ground electrode tip design for improved spark exposure
• Nickel ground and center electrode tips for durability
• Copper core center electrode for enhanced conductivity
• Standard ground configuration with a single ground electrode
• Flat seat type with 14mm thread diameter and 19mm reach
• Pre-gap size of 0.8 mm optimized for ignition efficiency
• Hex size of 16 mm for easy installation
• Manufacturer heat range rating of 16 suitable for various driving conditions

About the Denso U-Groove Conventional Spark Plug Line

The U-Groove Conventional spark plug line by Denso features a distinctive U-shaped groove on the ground electrode tip. This design increases the spark exposure area, promoting better ignition and combustion stability. The 3119 part number belongs to this line, combining conventional spark plug technology with enhanced electrode design to meet the ignition needs of multiple vehicle makes and models.

Technical Details and Material Composition

The Denso 3119 spark plug incorporates a copper core center electrode, which provides excellent thermal conductivity to maintain optimal operating temperatures. Both the center and ground electrode tips are made of nickel, offering resistance to wear and corrosion. The single ground electrode with a U-groove tip design improves spark efficiency compared to standard flat electrodes. With a flat seat and 14 mm thread diameter, this spark plug fits securely in compatible engines. The 0.8 mm pre-gap size is factory set to ensure proper spark gap for ignition reliability.

Compatible Vehicles and Applications

• Compatible with Audi A6, Chevrolet Corvette, and Lexus LX450
• Suitable for Toyota 4Runner, Corolla, and Tacoma models
• Fits Nissan Pathfinder, Mazda Miata, and Scion xB vehicles
• Also compatible with Oldsmobile Achieva, Pontiac Grand Am, and Geo Tracker
• Designed for use in select Rolls-Royce models including Corniche and Silver Spirit

Installation Notes and Tips

• Ensure the spark plug gap is set to 0.8 mm before installation if adjustment is needed
• Use a 16 mm socket wrench for proper torque application
• Verify thread diameter and reach (14 mm and 19 mm respectively) match engine specifications
• Apply anti-seize compound on threads if recommended by vehicle manufacturer
• Follow vehicle-specific torque specifications to avoid damage

Quality Assurance and Warranty

Denso spark plugs, including the 3119 part number, are manufactured to meet strict quality standards for durability and performance. The use of nickel and copper materials ensures resistance to electrode wear and thermal stress. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support reliable ignition system operation.