NGK 4629 Spark Plug

Reliable Ignition with NGK Standard Spark Plug 4629

The NGK Standard Spark Plug 4629 is engineered to deliver 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 rating of 1 ohm for optimal electrical performance
• Standard ground electrode tip and configuration for dependable spark delivery
• Nickel ground electrode core and tip for durability
• Copper center electrode core with nickel tip for effective conductivity
• Pre-gap size of 0.028 inches to ensure proper spark gap
• Single ground electrode design with a 5/8 inch hex size for easy installation
• Flat seat type with 0.5 inch reach and 10 mm thread diameter
• Manufacturer heat range of 7 suitable for moderate engine temperatures
• Electrical terminal type: stud for secure connection

About the NGK Standard Spark Plug Line

The NGK Standard Spark Plug line offers reliable ignition components designed to meet OEM specifications. This product line focuses on providing consistent performance and durability using quality materials such as copper and nickel. The Standard Spark Plug 4629 is part of this line, ensuring compatibility and dependable operation in secondary ignition systems.

Technical Details and Performance

The NGK 4629 spark plug features a copper core center electrode with a nickel tip, which balances conductivity and wear resistance. The single nickel ground electrode with a standard tip design supports stable spark generation. With a pre-gap size of 0.028 inches and a flat seat, this spark plug maintains proper ignition timing and combustion efficiency. The 5/8 inch hex size and stud terminal type facilitate straightforward installation and secure electrical connection. Its heat range of 7 is suitable for engines requiring moderate heat dissipation.

Applications and Problem Solving

• Compatible with vehicles requiring a 10 mm thread diameter and 0.5 inch reach spark plug
• Addresses issues such as misfires caused by worn or damaged spark plugs
• Helps improve cold starts and engine idling stability
• Reduces fouling and electrode wear in standard driving conditions
• Supports consistent ignition in secondary ignition systems

Installation Notes and Tips

Before installation, verify the spark plug gap matches the vehicle manufacturer’s specifications; the NGK 4629 comes pre-gapped at 0.028 inches. Use a torque wrench to tighten the spark plug to the recommended torque to avoid damage to the threads or seat. The 5/8 inch hex size allows compatibility with common spark plug sockets. Ensure the stud terminal is properly connected to the ignition wire for reliable electrical contact.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring consistent performance and durability. The Standard Spark Plug 4629 undergoes rigorous testing to comply with OEM specifications. While specific warranty details are not provided, NGK products typically come with manufacturer-backed quality assurance to support long-term use.