Denso 3179 Spark Plug

Overview of Denso U-Groove Conventional Spark Plug 3179

The Denso U-Groove Conventional spark plug 3179 is engineered for reliable ignition performance in select Audi, Fiat, and Porsche models. Designed with a unique U-groove ground electrode tip, this spark plug supports efficient combustion and consistent engine operation.

• U-groove ground electrode tip design for improved spark exposure
• Nickel ground electrode core and tip for durability
• Copper center electrode core with nickel tip for optimal conductivity
• Standard ground configuration with a single ground electrode
• Flat seat type with 14.00 mm thread diameter and 19.00 mm reach
• Pre-gap size of 0.9 mm for precise ignition timing
• Hex size of 16.0 mm for standard installation tools
• Manufacturer heat range of 22 suitable for specified vehicle applications

Detailed Product Features and Specifications

The Denso 3179 spark plug features a U-groove ground electrode tip design that enhances spark exposure to the air-fuel mixture, promoting more efficient combustion. The ground electrode and center electrode tips are made of nickel, providing resistance to wear and corrosion. The copper core in the center electrode improves thermal conductivity, helping to maintain optimal operating temperatures. With a standard ground configuration and a single ground electrode, this spark plug balances performance and durability. The flat seat design ensures a secure fit in the combustion chamber, while the 14.00 mm thread diameter and 19.00 mm reach match OEM specifications for compatible vehicles.

About the U-Groove Conventional Product Line

The U-Groove Conventional line from Denso focuses on spark plugs with a distinctive U-groove ground electrode tip. This design aims to increase the spark area and improve ignition efficiency without altering the conventional spark plug form factor. The 3179 model exemplifies this approach, combining traditional materials like nickel and copper with the U-groove innovation to meet the ignition needs of specific European vehicles.

Compatible Vehicles and Common Applications

This spark plug is compatible with various Audi, Fiat, and Porsche models, including the Audi A3 Quattro and TT Quattro, Fiat 500, and Porsche 911. It is designed to address ignition-related issues such as:

• Engine misfires or rough idling
• Difficulty starting the engine
• Reduced fuel efficiency
• Loss of engine power or acceleration
• Increased exhaust emissions

Installation Notes and Tips

When installing the Denso 3179 spark plug, ensure the pre-gap size of 0.9 mm is maintained for optimal ignition performance. Use a 16.0 mm socket wrench to tighten the spark plug to the manufacturer's torque specifications. Verify the flat seat type matches the engine's cylinder head design to prevent compression leaks. It is recommended to inspect the ignition system components and replace spark plugs in sets to maintain balanced engine operation.

Quality Assurance and Warranty

Denso spark plugs, including the 3179 model, are manufactured to meet strict quality standards for durability and performance. The materials used, such as nickel and copper electrodes, are selected for their resistance to wear and thermal stress. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship under normal use.