NGK 3112 Spark Plug

Reliable Ignition with NGK Standard Spark Plug 3112

The NGK Standard Spark Plug 3112 is engineered to provide consistent ignition performance for a variety of vehicles. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

• Resistance: 1 ohm 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 to enhance conductivity
• Center Electrode Tip Material: Nickel for wear resistance
• Pre-Gap Size: 0.028 inches for precise spark gap
• Hex Size: 13/16 inch for standard installation tools
• Insulator Height: 55.00 mm ensuring proper insulation
• Manufacturer Heat Range: 4 balancing heat dissipation and performance
• Seat Type: Flat for secure sealing
• Thread Diameter: 14.00 mm with 0.46 inch reach
• Electrical Terminal Type: Removable nut for flexible connection

About the NGK Standard Spark Plug Line

The NGK Standard Spark Plug line is designed to meet the needs of everyday driving with dependable ignition components. This product line focuses on delivering consistent performance and durability using quality materials such as copper and nickel. The Standard Spark Plug 3112 fits within this line by offering a balanced heat range and standard electrode design suitable for many common vehicle applications.

Technical Details and Application

The NGK 3112 spark plug features a single ground electrode with a nickel core and tip, paired with a copper core center electrode also tipped with nickel. This combination supports efficient spark generation and longevity under typical operating conditions. The 0.028-inch pre-gap size is factory set to optimize ignition timing and combustion efficiency. With a heat range of 4, this spark plug is suitable for engines requiring moderate heat dissipation. The flat seat type and 14 mm thread diameter with 0.46 inch reach ensure compatibility with many vehicle engines.

Common Issues Addressed by NGK Spark Plug 3112

• Engine misfires due to worn or faulty spark plugs
• Reduced fuel efficiency from incomplete combustion
• Hard starting or rough idling conditions
• Inconsistent engine performance under load
• Ignition system electrical resistance problems

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 0.028 inches as specified. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended torque to avoid damage to the threads or seat. The 13/16 inch hex size allows for standard spark plug sockets. Ensure the removable nut terminal is securely connected to the ignition wire for optimal electrical contact. Inspect the spark plug threads and seat for cleanliness to ensure a proper seal.

Quality Assurance and Warranty

NGK spark plugs are manufactured to strict quality standards to ensure reliable ignition performance. The materials used, including copper and nickel electrodes, are selected for durability and conductivity. While specific warranty details for part number 3112 may vary by distributor, NGK products typically come with a limited warranty against manufacturing defects. Always consult the product documentation or supplier for exact warranty terms.