Denso 3009 Spark Plug

Overview of Denso 3009 Spark Plug for Lexus, Nissan, and Toyota

The Denso 3009 spark plug is engineered for reliable ignition performance in select Lexus, Nissan, and Toyota vehicles. Designed with a U-groove ground electrode tip, this spark plug supports efficient combustion and consistent engine operation.

• U-groove ground electrode tip design for improved spark exposure
• Nickel ground and center electrode tips with copper core for durability and conductivity
• Standard ground configuration with a single ground electrode
• Flat seat type and 19.00 mm reach for proper fitment
• Pre-gap size of 1.1 mm optimized for ignition efficiency
• Hex size of 16.0 mm and thread diameter of 14.00 mm for installation compatibility
• Manufacturer heat range of 20 suitable for specified vehicle applications
• Resistance rating of 5000 ohms to reduce electrical noise interference

Details on the U-Groove Conventional Product Line

The Denso U-Groove Conventional line features spark plugs with a distinctive U-groove ground electrode tip design. This design enhances spark exposure to the air-fuel mixture, promoting more complete combustion. The conventional construction balances performance and durability, making it suitable for a range of secondary ignition applications in vehicles like the Lexus ES250, Nissan Maxima, and Toyota Camry.

Technical Description of Denso 3009 Spark Plug

The Denso 3009 spark plug incorporates a copper core center electrode with a nickel tip, providing effective heat dissipation and electrical conductivity. The single nickel ground electrode with a U-groove tip improves spark efficiency by increasing the spark area. With a flat seat and a 19.00 mm reach, this spark plug fits securely in the combustion chamber, ensuring proper sealing and heat transfer. The 1.1 mm pre-gap size is factory set to optimize ignition timing and combustion stability. Additionally, the 5000 ohm resistance helps minimize electromagnetic interference with vehicle electronics.

Compatible Vehicles and Common Applications

• Replacement spark plug for Lexus ES250 and ES300 models
• Suitable for Nissan 200SX, Maxima, and Pulsar NX engines
• Compatible with Toyota Camry and MR2 ignition systems
• Addresses issues such as misfires, rough idling, and poor fuel economy
• Helps restore smooth engine start and consistent acceleration

Installation Notes and Tips

• Verify thread diameter (14.00 mm) and reach (19.00 mm) match vehicle specifications
• Use a 16.0 mm socket wrench for proper torque application
• Check and adjust spark plug gap if necessary before installation
• Ensure the flat seat type matches the engine’s cylinder head design
• Follow manufacturer torque specifications to avoid damage

Quality Assurance and Warranty

Denso spark plugs, including the 3009 part number, are manufactured to meet OEM standards for fit, form, and function. The materials used, such as copper core electrodes and nickel tips, are selected for durability and consistent performance. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship.