NGK 7823 Spark Plug

Reliable Ignition with NGK Standard Spark Plug 7823

The NGK Standard Spark Plug 7823 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: 5000 ohms for optimal electrical performance
• Ground Electrode Tip and Configuration: Standard design with a single nickel core electrode
• Center Electrode: Copper core with nickel tip for balanced conductivity and durability
• Electrical Terminal: Removable nut type for flexible installation
• Pre-Gap Size: Factory set at 0.028 inches for precise spark delivery
• Thread Diameter: 14 mm with a 0.5-inch reach and flat seat type
• Hex Size: 13/16 inch for standard wrench compatibility
• Manufacturer Heat Range: 4, suitable for moderate engine temperatures
• Insulator Height: 55 mm for proper insulation and heat dissipation

About the NGK Standard Spark Plug Line

The Standard Spark Plug line from NGK is designed to meet OEM specifications for a wide range of vehicles. These spark plugs offer reliable ignition performance with materials and designs that balance durability and cost-effectiveness. The 7823 part number is part of this line, providing dependable secondary ignition components for everyday driving conditions.

Technical Details and Performance

The NGK 7823 spark plug features a copper core center electrode with a nickel tip, which ensures efficient heat transfer and consistent spark generation. The single ground electrode made of nickel provides a stable spark gap, while the 5000 ohm resistance helps reduce electrical noise interference. The removable nut terminal type allows for easier installation or replacement in various ignition systems. With a heat range of 4, this spark plug is suitable for engines operating under moderate thermal conditions, making it compatible with many common vehicle makes and models.

Common Applications and Problem Solving

• Restores engine misfire issues caused by worn or fouled spark plugs
• Improves cold start performance and throttle response
• Reduces ignition system electrical interference
• Maintains consistent combustion for fuel efficiency
• Prevents spark plug overheating in moderate heat range engines

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 0.028 inches as specified. Use a 13/16 inch socket wrench to tighten the spark plug to the manufacturer’s torque specifications. The removable nut terminal allows for flexible connection to various ignition wires. Ensure the flat seat type matches the engine’s cylinder head design to maintain proper sealing and heat transfer.

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 7823, undergoes rigorous testing for heat range accuracy, electrical resistance, and material integrity. While specific warranty details vary by distributor, NGK products typically come with manufacturer-backed quality assurance to support long-term use.