Denso 3289 Spark Plug

Reliable Ignition Performance for Lexus and Toyota Vehicles

The Denso Double Platinum 3289 spark plug is engineered to deliver consistent ignition performance for a range of Lexus and Toyota models. Designed with advanced materials and a multi-electrode configuration, this spark plug supports efficient combustion and engine reliability.

• Multi-electrode ground configuration with two nickel core electrodes
• Center electrode features a copper core with a platinum tip for durability
• Pre-gap size of 1.1 mm optimized for ignition efficiency
• Flat seat type with 14 mm thread diameter and 19 mm reach
• Manufacturer heat range rating of 16 for balanced thermal performance
• Hex size of 16.0 mm for standard installation tools
• Resistance rating of 5000 ohms to reduce electrical noise

Advanced Design Features of the Denso Double Platinum 3289 Spark Plug

The Denso Double Platinum line is known for its dual platinum electrodes, which enhance spark plug longevity and ignition stability. The 3289 model incorporates a multi-electrode ground design with platinum chips on each electrode tip, improving spark distribution and reducing misfires. The copper core center electrode ensures efficient heat dissipation, while the nickel ground electrodes provide structural strength. This combination supports consistent ignition in vehicles such as the Toyota Tacoma, Lexus GS300, and Toyota Corolla.

Compatible Vehicles and Applications

This spark plug is compatible with various Lexus and Toyota models, including but not limited to the 4Runner, Corolla, GS300, Paseo, SC300, Sienna, T100, Tacoma, Tercel, and Tundra. It is designed for secondary ignition systems requiring a 14 mm thread diameter and a 19 mm reach.

• Resolves engine misfires and rough idling
• Improves cold start performance
• Reduces ignition system electrical interference
• Maintains stable combustion under varied driving conditions
• Supports fuel efficiency by ensuring proper spark delivery

Installation Notes and Tips

When installing the Denso Double Platinum 3289 spark plug, ensure the correct torque is applied to avoid damage to the flat seat. Use a 16 mm socket for installation and verify the pre-gap size of 1.1 mm before fitting. This spark plug is designed for direct replacement in compatible Lexus and Toyota models without modification.

Quality Assurance and Warranty

Denso manufactures the Double Platinum 3289 spark plug to meet OEM specifications, ensuring reliable performance and durability. The use of platinum and copper materials contributes to extended service life. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support customer confidence.