Denso 3268 Spark Plug

Reliable Ignition Performance with Denso U-Groove Conventional Spark Plug

The Denso 3268 spark plug is engineered to deliver consistent ignition performance for a variety of vehicle applications. Featuring a U-groove ground electrode tip design and durable materials, this spark plug supports efficient combustion and engine reliability.

• U-groove ground electrode tip design for improved spark exposure
• Nickel ground electrode core and tip for durability
• Copper center electrode core with nickel tip for optimal conductivity
• Standard ground configuration with a single ground electrode
• Flat seat type with 14.00 mm thread diameter and 12.70 mm reach
• Pre-gap size of 1.0 mm for precise ignition timing
• Hex size of 20.6 mm for easy installation
• Manufacturer heat range rating of 20 for balanced heat dissipation

About the Denso U-Groove Conventional Product Line

The U-Groove Conventional line from Denso focuses on spark plugs with a unique U-shaped groove on the ground electrode tip. This design increases the spark exposure area, which can enhance ignition efficiency and combustion stability. The conventional construction uses nickel and copper materials to balance durability and conductivity, making it suitable for many standard ignition systems.

Technical Details and Application

The Denso 3268 spark plug features a nickel ground electrode core and tip, providing resistance to wear and corrosion. The copper center electrode core enhances electrical conductivity, supporting reliable spark generation. With a pre-gap size of 1.0 mm and a flat seat type, this spark plug is designed for precise ignition timing and secure seating in the cylinder head. The 14.00 mm thread diameter and 12.70 mm reach ensure compatibility with specific engine designs requiring these dimensions.

Common Issues Addressed by Denso 3268 Spark Plug

• Misfiring or inconsistent engine ignition
• Reduced fuel efficiency due to incomplete combustion
• Engine hesitation or rough idling
• Difficulty starting the engine in cold conditions
• Excessive spark plug wear or electrode erosion

Installation Notes and Tips

When installing the Denso 3268 spark plug, ensure the pre-gap is set to 1.0 mm if adjustment is necessary. Use a 20.6 mm socket for proper torque application to avoid damage to the spark plug or cylinder head. Confirm compatibility with your vehicle’s make and model by checking thread diameter and reach specifications. Proper installation helps maintain optimal ignition performance and engine efficiency.

Quality Assurance and Warranty

Denso spark plugs, including the 3268 model, are manufactured to meet strict quality standards for ignition components. The use of nickel and copper materials ensures durability and consistent performance. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support reliable operation in compatible vehicles.