NGK 4578 Spark Plug

Reliable Ignition with NGK Standard Spark Plug 4578

The NGK Standard Spark Plug 4578 (Cr7e) delivers consistent ignition performance for a variety of vehicle applications. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

• Resistance: 5000 ohms for stable electrical flow
• Ground Electrode Tip and Configuration: Standard design with a single ground electrode
• Core Materials: Copper center electrode with nickel tip and nickel ground electrode core
• Electrical Terminal Type: Stud for secure connection
• Pre-Gap Size: 0.032 inches for optimal spark gap
• Hex Size: 5/8 inch for easy installation
• Insulator Height: 50.00 mm with flat seat type
• Thread Diameter: 10.00 mm and reach of 0.75 inches
• Manufacturer Heat Range: 7, suitable for moderate operating temperatures

About the NGK Standard Spark Plug Line

The NGK Standard Spark Plug line is engineered to meet OEM specifications, providing dependable ignition performance for everyday driving conditions. The 4578 part number belongs to this line, offering a balance of durability and efficiency through its copper core center electrode and nickel ground electrode materials. This line is ideal for drivers seeking reliable replacement spark plugs that maintain engine performance without requiring specialized features.

Technical Details and Application

The NGK 4578 spark plug features a copper core center electrode that enhances thermal conductivity, helping to dissipate heat effectively. The nickel tip on the center electrode and the nickel ground electrode core provide corrosion resistance and durability. With a resistance of 5000 ohms, this spark plug reduces radio frequency interference, ensuring stable ignition. The pre-gap size of 0.032 inches is set to optimize spark efficiency, while the flat seat and 5/8 inch hex size facilitate straightforward installation. The heat range 7 rating indicates suitability for engines operating under moderate thermal conditions.

Common Issues Addressed by NGK 4578 Spark Plug

• Misfiring or rough idling due to worn or fouled spark plugs
• Difficulty starting the engine caused by inconsistent spark delivery
• Reduced fuel efficiency from incomplete combustion
• Engine hesitation or loss of power during acceleration
• Excessive emissions linked to poor ignition performance

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 0.032 inches to match engine requirements. Use a 5/8 inch socket wrench for proper torque application, avoiding over-tightening which can damage the threads or seat. The stud-type electrical terminal ensures a secure connection with compatible ignition wires. Always consult the vehicle’s service manual for specific torque specifications and replacement intervals.

Quality Assurance and Warranty

NGK spark plugs, including the Standard Spark Plug 4578, are manufactured to meet strict quality standards. The use of copper and nickel materials ensures durability and consistent performance. While specific warranty details are not provided here, NGK products typically come with manufacturer-backed quality assurance to support reliable operation in compatible vehicles.