NGK 6371 Spark Plug

Overview of NGK Laser Platinum Spark Plug 6371

The NGK Laser Platinum Spark Plug 6371 is engineered for reliable ignition performance in select Nissan and INFINITI vehicles. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Part Number: 6371 (FR5AP-10)
• Compatible with Nissan Altima, Frontier, Pathfinder, Quest, QX4, Xterra, and INFINITI models
• Center electrode tip made of platinum for enhanced durability
• Copper core center electrode for improved conductivity
• Standard ground electrode with nickel core material
• Pre-gap size of 0.040 inches for optimal spark
• Flat seat type and 14mm thread diameter
• Non-removable nut electrical terminal type
• Manufacturer heat range rating of 5

Features of the NGK Laser Platinum Spark Plug

The Laser Platinum Spark Plug line from NGK combines platinum-tipped electrodes with copper cores to balance longevity and electrical performance. The platinum tip reduces electrode wear, while the copper core center electrode enhances heat dissipation and conductivity. This combination supports stable ignition and efficient fuel combustion in compatible Nissan and INFINITI engines.

Technical Specifications and Benefits

This spark plug features a single ground electrode with a standard design and nickel core material, providing reliable grounding and durability. The pre-gap size of 0.040 inches is factory set to ensure optimal spark gap for ignition efficiency. The flat seat design and 14mm thread diameter ensure proper fitment and sealing in the combustion chamber. The non-removable nut terminal type simplifies installation and connection stability. With a heat range of 5, this plug is suited for moderate engine operating temperatures common in the specified vehicle models.

Compatible Vehicles and Applications

• Designed for use in Nissan Altima, Frontier, Pathfinder, Quest, QX4, and Xterra models
• Compatible with select INFINITI vehicles requiring this spark plug specification
• Ideal for secondary ignition system replacement or maintenance
• Helps address issues such as misfires, rough idling, poor fuel economy, hard starting, and engine hesitation

Installation Notes and Tips

• Verify vehicle compatibility using the part number 6371 before installation
• Ensure the spark plug gap is set to 0.040 inches if adjustment is necessary
• Use a torque wrench to tighten the spark plug to manufacturer specifications to avoid damage
• Inspect ignition wires and connectors for wear during replacement
• Replace spark plugs at recommended service intervals for optimal engine performance

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards for durability and performance. The Laser Platinum Spark Plug 6371 undergoes rigorous testing to ensure consistent ignition and longevity. While specific warranty details may vary, NGK typically offers coverage against manufacturing defects. Refer to NGK documentation or vehicle service guidelines for warranty information.