Denso 4114 Spark Plug

Reliable Ignition with Denso U-Groove Conventional Spark Plug 4114

The Denso U-Groove Conventional Spark Plug 4114 is engineered to provide consistent ignition performance for a variety of vehicles. Designed with a U-groove ground electrode tip and durable materials, this spark plug supports efficient combustion and engine reliability.

• U-groove ground electrode tip design 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 0.7 mm for precise spark gap
• Flat seat type with 19.00 mm reach and 12.00 mm thread diameter
• Hex size of 18.0 mm for standard installation tools
• Manufacturer heat range rating of 27 for balanced heat dissipation

About the U-Groove Conventional Product Line

The Denso U-Groove Conventional spark plug line features a unique U-groove ground electrode tip design that enhances spark exposure to the air-fuel mixture. This design supports stable ignition and efficient combustion, making it suitable for conventional ignition systems. The 4114 part number is part of this line, combining traditional materials like nickel and copper to maintain reliable performance in a wide range of automotive applications.

Technical Details and Performance

This spark plug incorporates a nickel ground electrode core and tip, providing resistance to wear and corrosion. The copper center electrode core enhances electrical conductivity, while the nickel tip ensures durability under high temperatures. The 0.7 mm pre-gap size is factory set to optimize spark efficiency. With a flat seat and 19.00 mm reach, the Denso 4114 fits applications requiring these specifications. The 12.00 mm thread diameter and 18.0 mm hex size allow for compatibility with standard spark plug sockets.

Applications and Problem Solving

• Restores proper ignition in vehicles experiencing misfires or rough idling
• Improves fuel combustion efficiency for better engine performance
• Reduces electrode wear in engines with conventional ignition systems
• Helps maintain consistent spark delivery in moderate heat range engines
• Suitable replacement for vehicles requiring a flat seat spark plug with 19 mm reach

Installation Notes and Tips

Ensure the spark plug gap is checked before installation, although the pre-gap is set at 0.7 mm from the factory. Use an 18 mm socket for installation and torque to the vehicle manufacturer’s specifications to avoid damage. The flat seat design requires proper seating to prevent compression leaks. Verify thread diameter and reach compatibility with your vehicle’s engine to ensure proper fitment.

Quality Assurance and Warranty

Denso spark plugs, including the U-Groove Conventional 4114, are manufactured to meet strict quality standards for durability and performance. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support reliable ignition system operation.