NGK 93501 Spark Plug

NGK Iridium IX Spark Plug Overview

The NGK Iridium IX Spark Plug 93501 is engineered for reliable ignition performance in a variety of vehicles including Acura, Honda, Toyota, Nissan, and Subaru models. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Taper cut ground electrode tip design for improved spark exposure
• Standard ground configuration with a single ground electrode
• Iridium center electrode tip with copper core for durability and conductivity
• Non-removable nut electrical terminal type for secure connection
• Pre-gap size of 0.044 inches optimized for ignition efficiency
• Flat seat type with 26.5 mm reach and 12 mm thread diameter
• Hex size of 14 mm for installation with common tools
• Manufacturer heat range rating of 7 suitable for various engine conditions

About the NGK Iridium IX Spark Plug Line

The Iridium IX Spark Plug line from NGK is designed to provide enhanced ignition performance through the use of iridium, a durable and heat-resistant metal. This line focuses on delivering stable sparks and improved throttle response, making it suitable for vehicles requiring precise ignition timing. The 93501 part number belongs to this line, combining iridium tip technology with a copper core center electrode to balance longevity and conductivity.

Technical Details and Compatibility

This spark plug features a taper cut ground electrode tip that increases spark exposure, contributing to more complete combustion. The single ground electrode and flat seat design ensure consistent contact and fitment. With a pre-gap of 0.044 inches, it is optimized for ignition systems in vehicles such as the Honda Accord, Toyota Corolla, Nissan Altima, Subaru Outback, and Acura ILX. The 14 mm hex size and 26.5 mm reach make it compatible with many secondary ignition systems across these makes and models.

Common Applications and Problem Solving

• Restores engine misfire issues caused by worn or fouled spark plugs
• Improves cold start performance in Acura, Honda, and Toyota vehicles
• Enhances fuel efficiency by promoting complete combustion
• Reduces rough idling and hesitation in Nissan and Subaru engines
• Supports stable ignition in high-performance and daily driving conditions

Installation Notes and Tips

When installing the NGK Iridium IX Spark Plug 93501, ensure the spark plug gap is set to the specified 0.044 inches if adjustment is necessary. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended torque to avoid damage to the threads or seat. The 14 mm hex size allows for easy installation with standard spark plug sockets. Always inspect the ignition system components for wear or damage during replacement.

Quality Assurance and Warranty

NGK spark plugs, including the Iridium IX 93501, are manufactured to meet strict quality standards for durability and performance. The use of iridium and copper materials ensures long service life and reliable ignition. While specific warranty details may vary, NGK products typically come with manufacturer-backed quality assurance to support customer confidence in fitment and function.