NGK 4008 Spark Plug

Reliable Ignition with NGK Standard Spark Plug 4008

The NGK Standard Spark Plug 4008 delivers consistent ignition performance for a variety of vehicles. Designed with durable materials and precise specifications, this spark plug supports efficient engine operation and reliable starts.

• Resistance: 5000 ohms for stable electrical flow
• Ground Electrode Tip Design: Standard for dependable spark delivery
• Center Electrode Core Material: Copper for excellent conductivity
• Ground Electrode Core Material: Nickel for durability
• Pre-Gap Size: 0.032 inches optimized for proper spark gap
• Hex Size: 13/16 inch for standard installation tools
• Seat Type: Flat to ensure proper sealing
• Thread Diameter: 14 mm with 0.75 inch reach for common engine fitments
• Electrical Terminal Type: Non-removable nut for secure connection
• Manufacturer Heat Range: 6 suitable for moderate engine temperatures

About the NGK Standard Spark Plug Line

The NGK Standard Spark Plug line is engineered to meet OEM specifications for a wide range of vehicles. These spark plugs provide reliable ignition performance with materials selected for durability and consistent operation. The Standard Spark Plug 4008 is part of this line, offering a balance of quality and value for everyday driving conditions.

Technical Details and Performance

The NGK 4008 spark plug features a copper core center electrode that enhances electrical conductivity, promoting efficient combustion. The nickel ground electrode and tip design provide resistance to wear and corrosion, extending service life. With a resistance rating of 5000 ohms, this spark plug helps reduce radio frequency interference while maintaining stable ignition. The flat seat and 14 mm thread diameter with a 0.75 inch reach ensure compatibility with many common engine designs. The pre-gap size of 0.032 inches is set to optimize spark efficiency and engine performance.

Applications and Problem Solving

• Restores proper ignition in engines experiencing misfires
• Improves cold start reliability in vehicles like Honda Accord and Toyota Camry
• Reduces fouling and electrode wear in moderate driving conditions
• Maintains consistent spark delivery for smooth engine operation
• Helps prevent ignition-related rough idling and hesitation

Installation Notes and Tips

When installing the NGK Standard Spark Plug 4008, ensure the spark plug gap is checked and adjusted if necessary to 0.032 inches. Use a 13/16 inch socket for proper torque application. The non-removable nut terminal type requires a secure connection to the ignition wire. Always follow vehicle manufacturer torque specifications to avoid damage to the spark plug or cylinder head.

Quality Assurance and Warranty

NGK spark plugs are manufactured to strict quality standards to ensure reliable performance and durability. The Standard Spark Plug 4008 undergoes rigorous testing for heat range, resistance, and material integrity. While specific warranty details are not provided, NGK products typically meet or exceed OEM requirements for ignition components.