NGK 92274 Spark Plug

Reliable Ignition Performance for Select Japanese and American Vehicles

The NGK Ruthenium HX High Ignitability Spark Plug 92274 is engineered to deliver consistent ignition and efficient combustion for a range of vehicles including Honda Accord, Toyota Corolla, Nissan Altima, and Subaru Forester. Designed with advanced materials and precise specifications, this spark plug supports optimal engine performance and fuel efficiency.

• Dual fine ground electrode tip design for high ignitability
• Ruthenium center electrode tip for enhanced durability and stable spark
• Copper core center electrode for improved conductivity
• Standard ground configuration with nickel ground electrode core
• Non-removable nut electrical terminal type for secure connection
• Pre-gap size of 0.044 inches for precise spark gap
• Flat seat type with 12 mm thread diameter and 26.5 mm reach
• Manufacturer heat range rating of 7 suitable for moderate engine temperatures
• Hex size 14 mm for easy installation

About the NGK Ruthenium HX High Ignitability Spark Plug Line

The Ruthenium HX High Ignitability Spark Plug line from NGK focuses on delivering improved ignition performance through the use of ruthenium-tipped electrodes. This design enhances spark stability and longevity compared to conventional plugs. The 92274 part number belongs to this line, offering a balance of durability and ignitability suitable for a variety of vehicles including Acura, Lexus, Mazda, and Infiniti models.

Technical Details and Compatibility

This spark plug features a copper core center electrode with a ruthenium tip, which provides excellent electrical conductivity and resistance to wear. The ground electrode is made from nickel with a dual fine electrode tip design, improving ignition reliability. The plug’s resistance is rated at 5000 ohms, helping to reduce electrical noise and interference. With a flat seat and a reach of 26.5 mm, it fits securely in compatible engines. The part number Lkar7ahx-s corresponds to NGK’s internal stock number 92274.

Applications and Common Issues Addressed

• Improves ignition stability in Honda Civic and Toyota Camry engines
• Reduces misfires and rough idling in Nissan Altima and Subaru Outback
• Enhances fuel efficiency and throttle response in Mazda CX-5 and Lexus RX models
• Supports smooth engine start-up in Acura TLX and Infiniti Q50
• Helps maintain consistent combustion in Scion xD and Pontiac Vibe

Installation Notes and Tips

Ensure the engine is cool before installation to avoid damage. Use a torque wrench to tighten the spark plug to manufacturer specifications, typically around 18-22 Nm for this size. Verify the pre-gap of 0.044 inches before installation, adjusting if necessary. The 14 mm hex size allows for standard spark plug sockets. Avoid over-tightening to prevent thread damage in the cylinder head.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards and undergo rigorous testing for durability and performance. The Ruthenium HX High Ignitability Spark Plug 92274 is designed for long service life under normal operating conditions. Warranty coverage details should be confirmed with the vehicle manufacturer or parts distributor.