NGK 6490 Spark Plug

Reliable Ignition with NGK Standard Spark Plug 6490

The NGK Standard Spark Plug 6490 is engineered to deliver consistent ignition performance for select Volvo models. 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 three ground electrodes
• Core Materials: Copper center electrode with nickel tip and nickel ground electrode core
• Pre-Gap Size: .024 inches for precise spark gap
• Hex Size: 5/8 inch for easy installation
• Insulator Height: 50.50 mm ensuring proper insulation
• Manufacturer Heat Range: 6 for balanced heat dissipation
• Seat Type: Flat for secure fitment
• Thread Diameter: 14.00 mm and Reach: 26.5 mm for exact fit
• Electrical Terminal Type: Non-removable nut for stable connection

About the NGK Standard Spark Plug Line

The Standard Spark Plug line by NGK is designed to meet OEM specifications for a wide range of vehicles, including Volvo models such as the C30, S40, and V50. This product line focuses on delivering reliable ignition performance with materials and designs that support engine efficiency and longevity. The 6490 part number is part of this line, ensuring compatibility and consistent quality.

Technical Details and Compatibility

The NGK 6490 spark plug features a copper core center electrode with a nickel tip, providing a balance of conductivity and durability. The triple ground electrode design enhances spark stability and combustion efficiency. With a resistance of 5000 ohms, it helps reduce electrical noise and interference. This spark plug is compatible with Volvo C30, S40, and V50 models, making it a suitable replacement for maintaining proper ignition system function.

Common Applications and Issues Addressed

• Restores proper ignition timing and spark delivery
• Reduces misfires and rough idling in Volvo C30, S40, and V50
• Improves fuel efficiency by ensuring complete combustion
• Prevents engine hesitation during acceleration
• Maintains stable engine performance under various driving conditions

Installation Notes and Tips

When installing the NGK Standard Spark Plug 6490, ensure the spark plug gap is set to the specified .024 inches if adjustment is needed. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended torque to avoid damage to the threads or seat. The 5/8 inch hex size allows for standard spark plug socket compatibility. Verify the flat seat type matches your engine’s cylinder head design for proper sealing.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Standard Spark Plug line 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 customer confidence in fitment and function.