NGK 1406 Spark Plug

Overview of NGK Laser Iridium High Ignitability Spark Plug 1406

The NGK Laser Iridium High Ignitability Spark Plug 1406 is engineered for reliable ignition performance in a range of Nissan and INFINITI vehicles. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Part Number: 1406
• Brand Line: Laser Iridium High Ignitability Spark Plug
• Center Electrode Tip Material: Iridium for enhanced durability
• Ground Electrode Tip Design: Dual fine electrode for high ignitability
• Center Electrode Core Material: Copper for optimal conductivity
• Ground Electrode Core Material: Nickel
• Resistance: 5000 ohms
• Pre-Gap Size: 0.044 inches
• Thread Diameter: 12.00 mm with 26.5 mm reach
• Hex Size: 14 mm
• Seat Type: Flat
• Electrical Terminal Type: Non-removable nut
• Manufacturer Heat Range: 7

Detailed Product Description

The NGK Laser Iridium High Ignitability Spark Plug 1406 features a copper core center electrode with an iridium tip, which provides a balance of excellent electrical conductivity and long-lasting wear resistance. The dual fine ground electrode design improves ignitability, contributing to more efficient combustion and smoother engine performance. The nickel ground electrode core ensures durability under high temperatures and stress. With a resistance of 5000 ohms, this spark plug is optimized to reduce electrical noise and interference. The pre-gap size of 0.044 inches and flat seat type are designed to meet OEM specifications for a precise fit and reliable spark delivery.

This spark plug is compatible with a wide range of Nissan and INFINITI models, including the Nissan 350Z, Altima, Armada, Frontier, Maxima, Murano, Pathfinder, TITAN, and NV series, as well as INFINITI Q50, Q70, FX35, FX50, G35, M35, and QX series vehicles. The part number 1406 ensures correct fitment and performance for these applications.

About the Laser Iridium High Ignitability Spark Plug Line

The Laser Iridium High Ignitability Spark Plug line from NGK is designed to provide enhanced ignition performance through the use of iridium-tipped center electrodes and fine dual ground electrodes. This combination improves spark efficiency and durability, making it suitable for modern engines requiring precise ignition timing and consistent combustion. The 1406 part is a representative model within this line, offering a balance of performance and longevity for secondary ignition systems.

Common Applications and Issues Addressed

• Improves ignition reliability in Nissan and INFINITI engines
• Reduces misfires and rough idling
• Enhances fuel efficiency by promoting complete combustion
• Supports stable engine performance under various driving conditions
• Helps maintain smooth acceleration and power delivery

Installation Notes and Tips

• Ensure the spark plug gap is set to 0.044 inches before installation
• Use a 14 mm socket wrench for proper tightening
• Apply anti-seize compound on threads if recommended by the vehicle manufacturer
• Torque to manufacturer specifications to avoid damage to the spark plug or cylinder head
• Check for proper reach of 26.5 mm to ensure correct seating

Quality Assurance and Warranty

NGK spark plugs, including the Laser Iridium High Ignitability Spark Plug 1406, are manufactured to meet strict quality standards for durability and performance. While specific warranty details may vary, NGK products typically come with a limited warranty against manufacturing defects. Always consult the product documentation or vehicle manufacturer guidelines for warranty coverage and installation instructions.