Denso 3216 Spark Plug

Reliable Spark Plug for Mitsubishi Mirage Vehicles

The Denso U-Groove Conventional 3216 spark plug is engineered to deliver consistent ignition performance for Mitsubishi Mirage models. Designed with durable materials and a multi-electrode configuration, this spark plug supports efficient combustion and engine reliability.

• Resistance rating of 5000 ohms for optimal electrical performance
• Multi-electrode ground configuration with two nickel ground electrodes
• Copper center electrode core with nickel tip for enhanced conductivity
• Flat seat type with a 19.00 mm reach and 14.00 mm thread diameter
• Pre-gap size of 1.0 mm for precise spark delivery
• Hex size of 20.6 mm for standard installation tools
• Manufacturer heat range of 16 suitable for typical operating conditions

About the Denso U-Groove Conventional Spark Plug Line

The U-Groove Conventional line by Denso focuses on reliable ignition components featuring a unique multi-electrode design. This configuration improves spark efficiency and durability by distributing the spark across multiple ground electrodes. The 3216 spark plug benefits from this design, providing stable ignition performance tailored for secondary ignition systems in vehicles like the Mitsubishi Mirage.

Technical Details and Performance Features

This Denso spark plug incorporates a copper core center electrode with a nickel tip, which balances thermal conductivity and wear resistance. The dual nickel ground electrodes enhance spark exposure and reduce electrode wear, contributing to longer service life. The 5000 ohm resistance helps suppress electrical noise, protecting sensitive vehicle electronics. With a flat seat and a 19 mm reach, the plug fits securely in the combustion chamber, ensuring proper sealing and heat dissipation.

Common Applications and Problem Solving

• Restores consistent ignition in Mitsubishi Mirage engines
• Reduces misfires caused by worn or damaged spark plugs
• Improves fuel efficiency by ensuring complete combustion
• Minimizes engine hesitation and rough idling
• Supports stable engine performance under normal driving conditions

Installation Notes and Tips

When installing the Denso 3216 spark plug, ensure the pre-gap of 1.0 mm is maintained for optimal spark performance. Use a 20.6 mm socket wrench for proper tightening torque. Verify the flat seat type matches the engine specifications to avoid sealing issues. It is recommended to replace spark plugs at regular maintenance intervals to maintain engine efficiency and prevent ignition problems.

Quality Assurance and Warranty

Denso manufactures the 3216 spark plug to meet strict quality standards, ensuring reliable performance in Mitsubishi Mirage vehicles. The spark plug features durable electrode materials and precise manufacturing tolerances. While specific warranty details are not provided, Denso products typically come with manufacturer-backed quality assurance to support automotive maintenance needs.