Denso 5306 Spark Plug

Overview of Denso Iridium Power Spark Plug 5306

The Denso Iridium Power 5306 spark plug is engineered for reliable ignition performance across a wide range of vehicles including Audi, Ford, Honda, Toyota, and Volkswagen models. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability and ignition
• Tapercut, u-groove ground electrode tip design for improved spark exposure
• Copper core center electrode for optimal conductivity
• Nickel ground electrode core material with standard ground configuration
• Pre-gap size of 1.1 mm for precise spark gap
• Flat seat type with 14 mm thread diameter and 19 mm reach
• Hex size of 20.6 mm for easy installation
• Manufacturer heat range of 20 suitable for various driving conditions

Detailed Product Features and Specifications

The Denso Iridium Power 5306 spark plug features a single ground electrode with a tapercut and u-groove tip design, which enhances spark exposure and promotes better combustion efficiency. The center electrode is constructed with a copper core for excellent thermal conductivity, topped with an iridium tip that provides long-lasting wear resistance. The ground electrode uses nickel core material, maintaining durability under high temperatures. With a pre-gap size of 1.1 mm and a flat seat type, this spark plug ensures consistent ignition performance. Its 14 mm thread diameter and 19 mm reach make it compatible with a variety of engines, including those found in models like the Honda Accord, Ford Mustang, and Volkswagen Golf.

About the Iridium Power Product Line

Denso's Iridium Power line is designed to deliver enhanced ignition performance through the use of iridium-tipped electrodes. This technology improves spark efficiency and durability compared to conventional spark plugs. The Iridium Power series, including part number 5306, is engineered to provide reliable starts and smooth engine operation for a broad range of vehicles, making it a suitable choice for drivers seeking consistent ignition quality.

Applications and Common Issues Addressed

• Replacement for worn or fouled spark plugs in compatible Audi, Chevrolet, Honda, and Toyota vehicles
• Helps resolve engine misfires and rough idling
• Improves cold start performance and throttle response
• Reduces spark plug wear and extends service intervals
• Supports fuel efficiency by ensuring complete combustion

Installation Notes and Tips

When installing the Denso Iridium Power 5306 spark plug, ensure the pre-gap is set to 1.1 mm if adjustment is necessary. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications to avoid damage to the threads or improper sealing. The 20.6 mm hex size allows for standard spark plug socket compatibility. Always inspect the spark plug seat and threads for cleanliness before installation to ensure proper fitment and performance.

Quality Assurance and Warranty

Denso manufactures the Iridium Power 5306 spark plug to meet strict quality standards, ensuring reliable ignition performance and durability. While specific warranty details may vary, Denso products typically come with a limited warranty against manufacturing defects. Refer to the product documentation or manufacturer for exact warranty terms.