NGK 2120 Spark Plug

Reliable Ignition with NGK Standard Spark Plug 2120

The NGK Standard Spark Plug 2120 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 operation.

• Resistance: 1 ohm for optimal electrical performance
• Ground Electrode Tip and Configuration: Standard design for reliable spark delivery
• Core Materials: Copper center electrode with nickel tip and nickel ground electrode core
• Pre-Gap Size: .028 inches for precise spark gap
• Thread Diameter: 12.00 mm with .75 inch reach and flat seat type
• Hex Size: 18 mm for easy installation and removal
• Manufacturer Heat Range: 8, suitable for moderate engine temperatures
• Electrical Terminal Type: Stud for secure connection

About the NGK Standard Spark Plug Line

The Standard Spark Plug line by NGK is designed to meet original equipment specifications, providing dependable ignition performance for everyday driving conditions. The 2120 part number belongs to this line, offering a balance of durability and efficiency with materials like copper and nickel that support stable combustion and engine longevity.

Technical Details and Performance

The NGK 2120 spark plug features a copper core center electrode with a nickel tip, enhancing conductivity and wear resistance. The single ground electrode with a standard tip design ensures consistent spark generation. Its 1 ohm resistance helps reduce radio frequency interference while maintaining reliable ignition. The pre-gap size of .028 inches is factory set to optimize spark timing and combustion efficiency. With an 18 mm hex size and a 12 mm thread diameter, this spark plug fits securely in compatible engines, providing a flat seat for proper sealing.

Applications and Problem Solving

• Restores engine misfire issues caused by worn or fouled spark plugs
• Improves cold start performance in vehicles requiring a heat range 8 spark plug
• Reduces rough idling and hesitation during acceleration
• Maintains consistent ignition timing for smoother engine operation
• Helps prevent spark plug fouling in standard combustion environments

Installation Notes and Tips

Before installation, verify compatibility with your vehicle’s make and model to ensure proper fitment. Use a torque wrench to tighten the spark plug to manufacturer specifications to avoid damage to the threads or improper sealing. Check the pre-gap size before installation and adjust if necessary to match your engine’s requirements. The 18 mm hex size allows for standard spark plug socket use, and the stud-type electrical terminal ensures a secure connection with ignition wires.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Standard Spark Plug line, including part number 2120, undergoes rigorous testing to comply with OEM specifications. While specific warranty details may vary, NGK products typically come with manufacturer-backed quality assurance to support long-term use in compatible vehicles.