Denso 3395 Spark Plug

Reliable Ignition Performance for Multiple Vehicle Makes

The Denso Iridium Long Life spark plug, part number 3395, is engineered to deliver consistent ignition performance across a wide range of vehicles including Acura, Ford, Honda, Nissan, and Volkswagen models. Designed for secondary ignition systems, this spark plug supports efficient combustion and engine reliability.

• Iridium center electrode tip for enhanced durability and ignition
• Platinum chip ground electrode tip for stable spark and wear resistance
• Copper core center electrode for improved conductivity
• Standard ground configuration with nickel ground electrode core
• Pre-gap size of 1.1 mm for optimal spark gap
• Flat seat type with 14 mm thread diameter and 19 mm reach
• Hex size of 16.0 mm for easy installation
• Manufacturer heat range rating of 16
• Resistance of 5000 ohms to reduce electrical noise

About the Denso Iridium Long Life Product Line

The Iridium Long Life series by Denso is designed to provide extended service life and reliable ignition under various driving conditions. Featuring iridium-tipped center electrodes, these spark plugs offer improved wear resistance and stable performance compared to conventional plugs. The combination of iridium and platinum chip technology in the ground electrode enhances spark consistency and durability, making it suitable for vehicles requiring long-lasting ignition components.

Technical Details and Compatibility

This Denso spark plug 3395 features a copper core center electrode that ensures excellent thermal conductivity and efficient heat dissipation. The ground electrode uses a nickel core with a platinum chip tip, providing a balance of durability and spark stability. The flat seat design and 14 mm thread diameter with a 19 mm reach make it compatible with a variety of engines. The pre-gap size of 1.1 mm is factory set to optimize ignition performance. This spark plug is compatible with many models such as the Honda Civic, Ford Taurus, Nissan 300ZX, Volkswagen Jetta, and Acura TL, among others.

Common Applications and Problem Solving

• Improves engine starting reliability in Acura and Honda vehicles
• Reduces misfires and rough idling in Ford and Nissan models
• Enhances fuel efficiency and combustion stability in Volkswagen and Buick cars
• Addresses spark plug wear and electrode erosion in Chrysler and Dodge engines
• Supports consistent ignition timing in Subaru and Mazda vehicles

Installation Notes and Tips

When installing the Denso Iridium Long Life spark plug 3395, ensure the spark plug gap is checked and adjusted if necessary, although it comes pre-gapped at 1.1 mm. Use a torque wrench to tighten the plug to the manufacturer’s specifications to avoid damage to the threads or improper sealing. The 16 mm hex size allows for standard spark plug socket compatibility. It is recommended to inspect the ignition system and replace spark plugs in sets for balanced engine performance.

Quality Assurance and Warranty

Denso manufactures the Iridium Long Life spark plugs to meet OEM standards, ensuring reliable performance and durability. The use of iridium and platinum materials contributes to extended service intervals. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Always refer to vehicle manufacturer guidelines and warranty terms when installing replacement spark plugs.