NGK 9998 Spark Plug Wire Set

Reliable Ignition Performance for Nissan D21 and Pathfinder

The NGK Spark Plug Wire Set 9998 is designed specifically for Nissan D21 and Pathfinder models, ensuring precise fitment and optimal ignition performance. Featuring durable silicone insulation and advanced noise suppression, this spark plug wire set supports consistent engine operation under various driving conditions.

• Insulation Color: Blue for easy identification
• High-quality silicone insulation material for heat resistance
• Noise suppression technology to reduce electromagnetic interference
• Magnesium core with variable pitch for efficient spark delivery
• Specific fitment for Nissan D21 and Pathfinder vehicles
• Insulation outside diameter of 8.00 mm for durability
• Part Number Rc-nx87, Stock Number 9998

About the NGK Spark Plug Wire Set Line

The NGK Spark Plug Wire Set line is engineered to provide reliable ignition wire solutions tailored to specific vehicle applications. This product line emphasizes quality materials such as silicone insulation and advanced core designs to maintain consistent spark transmission and reduce noise interference. The NGK Spark Plug Wire Set 9998 is part of this line, offering a precise match for Nissan D21 and Pathfinder models to maintain factory-level ignition system performance.

Product Details and Technical Specifications

This spark plug wire set features a silicone insulation material that withstands high temperatures and environmental stress, ensuring long-lasting durability. The blue insulation color aids in quick identification during installation or maintenance. The magnesium core with variable pitch enhances spark energy transfer, improving ignition efficiency. Noise suppression technology minimizes electromagnetic interference, protecting sensitive electronic components in your Nissan D21 or Pathfinder. The insulation outside diameter of 8.00 mm balances flexibility and protection, making the wires resistant to abrasion and heat.

Common Applications and Issues Addressed

• Replacement for worn or damaged spark plug wires in Nissan D21 and Pathfinder
• Eliminates misfires caused by degraded ignition wires
• Reduces engine noise and radio interference due to noise suppression
• Improves engine starting and overall ignition reliability
• Prevents voltage leaks that can affect engine performance

Installation Notes and Tips

Ensure the engine is cool before beginning installation. Match each wire to its corresponding spark plug and ignition coil terminal to maintain correct firing order. The specific fitment design of the NGK Spark Plug Wire Set 9998 simplifies installation on Nissan D21 and Pathfinder models. Inspect connectors for corrosion and clean spark plug boots before attaching new wires. Secure wires away from hot engine components to prevent premature wear.

Quality Assurance and Warranty

NGK maintains strict quality control standards for its Spark Plug Wire Set line, including the 9998 part number. Each wire set undergoes rigorous testing to meet OEM specifications for fit, durability, and electrical performance. While specific warranty details are not provided here, NGK products typically come with manufacturer-backed warranties to ensure customer confidence and product reliability.