NGK 4347 Spark Plug

NGK Laser Iridium Spark Plug 4347 for Lamborghini Murcielago

The NGK Laser Iridium Spark Plug 4347 is engineered to deliver reliable ignition performance for your Lamborghini Murcielago. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability and ignition
• Copper core center electrode for improved conductivity
• Standard ground electrode with nickel core material
• Non-removable nut electrical terminal type
• Pre-gap size of 0.030 inches for optimal spark gap
• Flat seat type with 0.75 inch reach and 12.00 mm thread diameter
• Resistor type with 5000 ohm resistance to reduce electrical noise
• Hex size of 5/8 inch for installation compatibility
• Manufacturer heat range rating of 8

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 is tailored for performance vehicles like the Lamborghini Murcielago, offering improved ignition stability and resistance to electrode wear compared to conventional spark plugs.

Detailed Product Description

The NGK Laser Iridium Spark Plug 4347 features a copper core center electrode that enhances electrical conductivity, paired with an iridium tip that resists wear and maintains a stable spark over time. The single ground electrode is constructed from nickel, providing durability under high-temperature conditions. The spark plug includes a 5000 ohm resistor to minimize electromagnetic interference, ensuring smooth operation of onboard electronics. Its flat seat design and 0.75 inch reach ensure proper fitment and sealing in the combustion chamber of the Lamborghini Murcielago. The pre-gap of 0.030 inches is factory set to optimize ignition performance and fuel efficiency.

Applications and Problem Solving

• Restores consistent ignition in Lamborghini Murcielago engines
• Reduces misfires caused by electrode wear or gap erosion
• Minimizes electrical interference affecting vehicle sensors and electronics
• Improves fuel combustion efficiency and engine responsiveness
• Supports high-heat operation typical of performance engines

Installation Notes and Tips

Ensure the spark plug gap is checked before installation, although the pre-gap is factory set at 0.030 inches. Use a 5/8 inch socket for proper torque application. Confirm compatibility with the Lamborghini Murcielago model year and engine specifications before installation. Avoid overtightening to prevent damage to the flat seat and threads.

Quality Assurance

NGK spark plugs are manufactured to strict quality standards to ensure reliable performance and durability. The Laser Iridium Spark Plug 4347 meets OEM specifications for the Lamborghini Murcielago. While no specific warranty information is provided, NGK products are widely recognized for consistent quality and longevity in automotive ignition components.