NGK 95159 Spark Plug

Overview of NGK Ruthenium HX High Ignitability Spark Plug 95159

The NGK Ruthenium HX High Ignitability Spark Plug (part number 95159) is engineered for reliable ignition performance in a wide range of vehicles including Audi, BMW, Mercedes-Benz, Toyota, and Volkswagen models. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Ruthenium center electrode tip for enhanced ignitability
• Projected square platinum ground electrode for stable spark
• Copper core materials in both center and ground electrodes for optimal 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 and flat seat type for proper fitment
• Compatible with various makes and models including Audi A4, BMW 540i, Mercedes-Benz C230, Toyota Camry, and Volkswagen Golf

Detailed Product Features and Specifications

The NGK Ruthenium HX High Ignitability Spark Plug 95159 features a ruthenium center electrode tip, which provides a high level of ignitability and durability compared to traditional materials. The projected square platinum ground electrode enhances spark stability and ignition efficiency. Both the center and ground electrodes utilize copper cores, ensuring excellent electrical conductivity and heat dissipation. The spark plug has a resistance rating of 5000 ohms, which helps reduce electrical noise and interference. Its standard ground configuration with a single ground electrode and a flat seat type ensures compatibility with a broad range of engines. The pre-gap size is set at 0.032 inches, and the thread diameter measures 14.00 mm with a reach of 0.75 inches, making it suitable for many secondary ignition applications.

About the Ruthenium HX High Ignitability Spark Plug Line

The Ruthenium HX High Ignitability Spark Plug line by NGK is designed to deliver improved ignition performance through the use of ruthenium, a durable and conductive metal, on the center electrode tip. This product line focuses on enhancing spark efficiency and longevity, which can contribute to smoother engine starts and consistent combustion. The 95159 spark plug is part of this line, offering a balance of advanced materials and proven design features tailored for secondary ignition systems.

Applications and Common Issues Addressed

• Replacement for worn or fouled spark plugs in compatible Audi, BMW, Mercedes-Benz, Toyota, and Volkswagen vehicles
• Improves ignition reliability in engines experiencing misfires or rough idling
• Helps restore fuel efficiency by ensuring consistent spark delivery
• Reduces electrical interference due to its 5000 ohm resistance rating
• Supports stable combustion in engines with secondary ignition systems

Installation Notes and Tips

When installing the NGK 95159 spark plug, ensure the engine is cool to prevent damage to the threads or spark plug. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications to avoid over-tightening or under-tightening. Verify the pre-gap size of 0.032 inches before installation, adjusting if necessary to match vehicle requirements. The non-removable nut electrical terminal type requires compatible ignition wires or connectors for proper fitment. Always consult the vehicle’s service manual for specific installation procedures and torque values.

Quality Assurance and Warranty

NGK spark plugs, including the Ruthenium HX High Ignitability Spark Plug 95159, are manufactured to meet strict quality standards for durability and performance. The use of copper core electrodes and premium materials like ruthenium and platinum ensures long service life and consistent ignition. While specific warranty details may vary, NGK products typically come with manufacturer-backed quality assurance to support reliable operation in compatible vehicles.