Denso 3479 Spark Plug

Overview of Denso Iridium Long Life Spark Plug 3479

The Denso Iridium Long Life spark plug 3479 is engineered for reliable ignition performance in select Hyundai and Kia vehicles. Designed with advanced materials, this spark plug supports efficient combustion and long service intervals.

• Iridium center electrode tip for enhanced durability
• Platinum chip ground electrode tip for stable ignition
• Copper core center electrode for improved conductivity
• Standard ground configuration with nickel core ground electrode
• Pre-gap size of 0.8 mm for optimal spark gap
• Flat seat type with 12 mm thread diameter and 26.5 mm reach
• Hex size of 16 mm for easy installation
• Manufacturer heat range of 20 suitable for specified vehicles

Detailed Features and Specifications

This Denso spark plug 3479 features an iridium center electrode tip, which provides a fine electrode for consistent spark and extended wear life. The copper core center electrode enhances thermal conductivity, helping to dissipate heat effectively. The ground electrode includes a platinum chip tip and a nickel core, combining durability with reliable spark performance. The spark plug has a pre-gap size of 0.8 mm, ensuring proper ignition timing and combustion efficiency. Its flat seat design and 12 mm thread diameter with a 26.5 mm reach make it compatible with a range of Hyundai and Kia models.

About the Iridium Long Life Product Line

The Iridium Long Life line from Denso focuses on delivering spark plugs with extended durability and consistent ignition performance. Utilizing iridium and platinum materials in the electrode tips, this product line is designed to maintain stable combustion over longer intervals compared to conventional spark plugs. The 3479 part number is part of this line, offering a balance of longevity and reliable ignition for secondary ignition systems.

Compatible Vehicles and Applications

This spark plug 3479 is compatible with various Hyundai and Kia models, including:

• Hyundai Accent, Elantra, Santa Fe Sport, Sonata, Tucson, Veloster
• Kia Forte5, Forte Koup, Genesis, Optima, Rio, Soul, Sportage

It is designed for use in secondary ignition systems where precise spark and durability are required.

Common Issues Addressed by Denso Spark Plug 3479

• Misfiring or rough engine idle
• Reduced fuel efficiency due to incomplete combustion
• Difficulty starting the engine
• Engine hesitation or loss of power under acceleration
• Increased emissions from inefficient ignition

Installation Notes and Tips

When installing the Denso Iridium Long Life spark plug 3479, ensure the spark plug gap is set to the specified 0.8 mm pre-gap size if adjustment is necessary. Use a 16 mm socket for proper torque application to avoid damage to the flat seat threads. Verify compatibility with the vehicle’s manufacturer specifications, especially the heat range 20 rating, to ensure optimal engine performance.

Quality Assurance and Warranty

Denso spark plugs are manufactured to meet strict quality standards for ignition components. The Iridium Long Life spark plug 3479 undergoes rigorous testing to ensure durability and consistent performance. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship.