Denso 3093 Spark Plug

Reliable Ignition Performance with Denso U-Groove Conventional Spark Plug

The Denso 3093 spark plug is engineered to deliver consistent ignition performance for a variety of vehicle makes and models. Featuring a U-groove ground electrode tip design, this spark plug supports efficient combustion and reliable engine operation.

• U-groove ground electrode tip for improved spark exposure
• Standard ground configuration with a single ground electrode
• Nickel ground electrode core and tip for durability
• Copper center electrode core with nickel tip for optimal conductivity
• Pre-gap size of 0.8 mm for precise spark gap
• Flat seat type with 19.00 mm reach and 14.00 mm thread diameter
• Hex size of 20.6 mm for standard installation tools
• Manufacturer heat range rating of 22 for balanced thermal performance

About the U-Groove Conventional Product Line

The Denso U-Groove Conventional spark plug line is designed to provide dependable ignition with a focus on conventional electrode designs enhanced by the U-groove tip. This design increases the spark exposure area, which can contribute to more efficient combustion and smoother engine operation. The 3093 part number is part of this line, combining traditional materials like nickel and copper with the U-groove innovation.

Technical Details and Application

The Denso 3093 spark plug features a nickel ground electrode core and tip, paired with a copper center electrode core and nickel tip, balancing durability and conductivity. The single ground electrode with a U-groove tip enhances spark efficiency by increasing the spark exposure area. With a pre-gap size of 0.8 mm and a flat seat design, this spark plug is suitable for vehicles requiring precise ignition timing and consistent spark delivery. The 19.00 mm reach and 14.00 mm thread diameter ensure compatibility with specific engine designs, while the 20.6 mm hex size allows for straightforward installation using common tools.

Common Uses and Problem Solving

• Restores proper ignition in engines experiencing misfires
• Improves combustion efficiency in vehicles with worn spark plugs
• Addresses rough idling caused by inconsistent spark delivery
• Helps reduce engine hesitation during acceleration
• Supports stable engine performance in compatible makes and models

Installation Notes and Tips

When installing the Denso 3093 spark plug, ensure the pre-gap of 0.8 mm is maintained or adjusted according to the vehicle manufacturer’s specifications. Use a 20.6 mm socket for proper tightening torque to avoid damage to the spark plug or cylinder head. The flat seat design requires careful seating to ensure a proper seal. Always consult the vehicle’s service manual for specific fitment and installation instructions.

Quality Assurance and Warranty

Denso spark plugs, including the 3093 part number, are manufactured to meet strict quality standards for ignition components. The use of nickel and copper materials ensures durability and reliable conductivity. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support long-term engine performance.