Denso 3445 Spark Plug

Overview of Denso U-Groove Conventional Spark Plug 3445

The Denso U-Groove Conventional spark plug, part number 3445, is engineered for reliable ignition performance in a variety of vehicles including Acura, Honda, Hyundai, and Volkswagen models. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Resistance: 5000 ohms for optimal electrical performance
• Ground Electrode Tip Design: Standard for reliable spark delivery
• Ground Electrode Core Material: Nickel for durability
• Center Electrode Core Material: Copper for excellent conductivity
• Center Electrode Tip Material: Nickel to withstand high temperatures
• Pre-Gap Size: 0.9 mm for precise spark gap
• Hex Size: 16.0 mm for standard installation tools
• Manufacturer Heat Range: 22 suitable for a wide range of engine conditions
• Seat Type: Flat for secure fitment
• Thread Diameter: 12.00 mm and Reach: 26.50 mm for proper engine compatibility

About the U-Groove Conventional Product Line

The Denso U-Groove Conventional spark plug line features a unique groove design on the center electrode that enhances spark exposure and combustion efficiency. This design helps improve ignition reliability and fuel efficiency in compatible vehicles. The 3445 spark plug benefits from this technology, making it suitable for secondary ignition systems in various passenger cars and light trucks.

Technical Details and Compatibility

Part number 3445 is compatible with a broad range of makes and models, including Acura Accord, Honda Civic, Hyundai Elantra, Volkswagen Passat, Jeep Cherokee, and Dodge Charger among others. The spark plug’s nickel ground electrode and copper center electrode core materials provide a balance of durability and conductivity, essential for maintaining stable ignition under diverse driving conditions. The 5000 ohm resistance helps reduce radio frequency interference, ensuring smooth engine operation.

Common Applications and Problem Solving

• Restores proper ignition in vehicles experiencing misfires
• Improves engine start-up reliability in Acura, Honda, and Hyundai models
• Reduces rough idling and hesitation during acceleration
• Helps maintain fuel efficiency by ensuring complete combustion
• Addresses spark plug wear in vehicles like Volkswagen Passat and Jeep Cherokee

Installation Notes and Tips

When installing the Denso 3445 spark plug, ensure the pre-gap size of 0.9 mm is maintained for optimal performance. Use a 16 mm socket wrench for proper torque application. The flat seat type requires careful tightening to avoid damage to the cylinder head. It is recommended to replace spark plugs in sets to maintain consistent engine performance.

Quality Assurance and Warranty

Denso manufactures the U-Groove Conventional spark plugs to meet strict quality standards. The materials and design specifications ensure durability and reliable ignition performance. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support long-term use in compatible vehicles.