Denso 3490 Spark Plug

Reliable Ignition Performance for Nissan Altima and Rogue

The Denso Iridium Long Life (SIP) spark plug, part number 3490, is engineered to provide consistent ignition and enhanced durability for Nissan Altima and Rogue models. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and long-term engine reliability.

• Iridium center electrode tip for improved ignition and wear resistance
• Platinum needle ground electrode tip with needle-to-needle configuration
• Copper core center electrode for optimal conductivity
• Nickel ground electrode core material for durability
• Pre-gap size of 1.1 mm for precise spark delivery
• Flat seat type with 12.00 mm thread diameter and 28.50 mm reach
• Hex size of 14.3 mm for standard installation tools
• Manufacturer heat range rating of 20 for balanced thermal performance
• Resistance value of 5000 ohms to reduce electrical noise

About the Iridium Long Life (SIP) Product Line

The Iridium Long Life (SIP) line from Denso focuses on delivering extended service life and stable ignition performance through the use of iridium and platinum electrode materials. This product line is designed to meet the demands of modern engines by combining durability with efficient spark generation, making it suitable for Nissan vehicles requiring reliable secondary ignition components.

Technical Details and Benefits

The Denso 3490 spark plug features a copper core center electrode that enhances electrical conductivity, ensuring a strong and consistent spark. The iridium tip on the center electrode provides resistance to wear and high temperatures, which contributes to longer service intervals. The ground electrode uses a platinum needle tip in a needle-to-needle configuration, improving spark precision and combustion efficiency. With a pre-gap size of 1.1 mm and a flat seat design, this spark plug fits securely and maintains optimal spark gap for Nissan Altima and Rogue engines. The 5000 ohm resistance helps minimize electromagnetic interference with vehicle electronics.

Compatible Vehicles and Common Applications

• Replacement spark plug for Nissan Altima models requiring part number 3490
• Suitable for Nissan Rogue vehicles needing a durable ignition component
• Addresses issues such as misfires, rough idling, and poor fuel economy
• Helps restore smooth engine start and consistent acceleration
• Supports maintenance schedules for secondary ignition system upkeep

Installation Notes and Tips

When installing the Denso 3490 spark plug, ensure the engine is cool to prevent damage to the threads. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications to avoid over-tightening or under-tightening. Verify the pre-gap size of 1.1 mm before installation to maintain optimal ignition performance. The 14.3 mm hex size allows for compatibility with common spark plug sockets.

Quality Assurance and Warranty

Denso manufactures the 3490 spark plug to meet strict quality standards, ensuring reliable performance and durability. The use of premium materials such as iridium and platinum contributes to consistent ignition and extended service life. While specific warranty details are not provided, Denso products typically adhere to industry standards for automotive ignition components.