NGK 92400 Spark Plug

Reliable Ignition Performance for Acura, Audi, Honda, and More

The NGK Ruthenium HX High Ignitability Spark Plug 92400 is engineered to deliver consistent ignition and improved combustion efficiency. Designed for a range of vehicles including Acura, Audi, Honda, and Volkswagen models, this spark plug supports optimal engine performance and fuel economy.

• Projected square platinum ground electrode for high ignitability
• Ruthenium center electrode tip for enhanced durability
• Copper core materials in both center and ground electrodes for efficient conductivity
• Standard ground configuration with a single ground electrode
• Non-removable nut electrical terminal type for secure connection
• Pre-gap size of 0.032 inches for precise spark delivery
• Flat seat type with 14mm thread diameter and 0.75 inch reach
• Manufacturer heat range rating of 7 suitable for various driving conditions

About the Ruthenium HX High Ignitability Spark Plug Line

The Ruthenium HX High Ignitability Spark Plug line from NGK focuses on delivering improved ignition performance through advanced electrode materials and design. Featuring a ruthenium center electrode tip and a projected square platinum ground electrode, this product line enhances spark efficiency and durability. The 92400 part number exemplifies these qualities, making it suitable for secondary ignition systems in select Acura, Audi, Honda, and Volkswagen vehicles.

Technical Details and Application

This spark plug incorporates copper core materials in both the center and ground electrodes to ensure excellent electrical conductivity and heat dissipation. The projected square platinum ground electrode tip is designed to provide a stable and high ignitability spark, which supports smoother engine starts and consistent combustion. The non-removable nut terminal type ensures a reliable electrical connection, while the flat seat and 14mm thread diameter provide secure installation. With a pre-gap of 0.032 inches and a heat range of 7, this spark plug is optimized for a balance of performance and longevity.

Common Uses and Problem Solving

• Improves ignition reliability in Acura TL, Audi A4, and Honda Civic engines
• Reduces misfires and rough idling in Volkswagen Golf and Jetta models
• Enhances fuel efficiency and throttle response in Chevrolet Cruze and Buick Encore
• Supports consistent spark delivery in Porsche Cayenne and Audi Q5 vehicles
• Addresses ignition-related performance issues in various Quattro and allroad models

Installation Notes and Tips

• Ensure the spark plug gap is set to 0.032 inches before installation
• Use a torque wrench to tighten to manufacturer specifications to avoid damage
• Verify compatibility with your vehicle’s make and model, including Acura, Audi, Honda, and Volkswagen
• Inspect ignition wires and coils for wear during replacement
• Replace spark plugs in sets to maintain balanced engine performance

Quality Assurance and Warranty

NGK spark plugs, including the Ruthenium HX High Ignitability Spark Plug 92400, are manufactured to meet strict quality standards for durability and performance. The use of high-grade materials such as ruthenium and copper ensures long service life and reliable ignition. While specific warranty details may vary, NGK products typically come with manufacturer-backed quality assurance to support professional automotive maintenance.