NGK 6481 Spark Plug

NGK Laser Iridium Spark Plug 6481 Overview

The NGK Laser Iridium Spark Plug 6481 is engineered for reliable ignition performance in select Hyundai, Land Rover, Saab, Subaru, and Volvo vehicles. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and engine responsiveness.

• Iridium center electrode tip for enhanced durability
• Copper core center electrode for improved conductivity
• Standard ground electrode with nickel core material
• Non-removable nut electrical terminal type
• Pre-gap size of 0.032 inches for optimal spark
• Flat seat type with 14.00 mm thread diameter and 26.5 mm reach
• Manufacturer heat range rating of 6
• Hex size of 5/8 inch for installation

About the NGK Laser Iridium Spark Plug Line

The Laser Iridium Spark Plug line from NGK combines iridium's high melting point with precise electrode design to provide consistent ignition and long service life. This product line focuses on delivering stable spark performance and resistance to electrode wear, making it suitable for a range of passenger vehicles including models from Hyundai, Land Rover, Saab, Subaru, and Volvo.

Technical Details and Compatibility

The NGK Laser Iridium Spark Plug 6481 features a copper core center electrode with an iridium tip, which enhances electrical conductivity and durability. The ground electrode uses nickel core material with a standard design, ensuring reliable spark gap maintenance. The plug’s resistance is rated at 5000 ohms, helping to reduce electrical noise interference. With a flat seat and a reach of 26.5 mm, it fits specific engine configurations requiring these dimensions. This spark plug is compatible with various models such as the Hyundai Genesis Coupe, Subaru Impreza, Land Rover LR2, Saab 9-2X, and Volvo XC90, among others.

Applications and Problem Solving

• Restores efficient ignition in Hyundai Genesis Coupe and Subaru Forester engines
• Reduces misfires and rough idling in Land Rover LR2 and Volvo S60
• Improves fuel combustion stability in Saab 9-2X and Volvo XC70
• Helps maintain engine performance in Subaru Outback and Legacy models
• Supports consistent spark delivery in Volvo V50 and C30 vehicles

Installation Notes and Tips

• Ensure the spark plug gap is set to the pre-gap size of 0.032 inches before installation
• Use a 5/8 inch socket for proper tightening to avoid damage
• Verify flat seat compatibility with the engine cylinder head
• Apply anti-seize compound sparingly on threads if recommended by the vehicle manufacturer
• Torque to manufacturer specifications to ensure proper sealing and performance

Quality Assurance and Warranty

NGK spark plugs, including the Laser Iridium Spark Plug 6481, are manufactured to meet strict quality standards for durability and performance. The use of iridium and copper materials ensures long service life and consistent ignition. While specific warranty details may vary, NGK products typically come with manufacturer-backed quality assurance to support reliable operation in compatible Hyundai, Land Rover, Saab, Subaru, and Volvo vehicles.