In order for the gasoline-air mixture of the engine to ignite perfectly, a stable ignition spark is required at the right time. Therefore, the correct choice of spark plug is essential for optimal combustion and performance development of the engine. Particularly with the heat value, attention should be paid to the manufacturer's specifications. Since each manufacturer defines the heat value differently, for example, a Bosch heat value 3 can correspond to a NGK value of 9. For orientation, each vehicle manual lists the manufacturer's specifications with alternatively usable spark plugs and their exact designations or type codes.

Care must be taken when using suppressed spark plug connectors; double is not always better. In this case, a suppressed spark plug should not be used, as the overall suppression resistance would be too high.

• High-quality aluminum oxide-silicate ceramic, creates a stronger insulator for optimal performance
• 98% pure copper core, provides excellent heat dissipation and conductivity
• Cold-rolled thread, prevents cross-threading and damage to the cylinder head
• Outstanding material coating, offers excellent corrosion protection

Technical Features:

• Type designation: BP4ES
• Thread type: Long thread
• Thread length: 19.0 mm
• Thread diameter: 14.0 mm
• Wrench size: 20.8 mm
• Electrode gap: 0.75 mm
• NGK heat value: 4
• Delivery contents: 1 piece

The right torque for spark plugs:

NGK Spark Plug

With the two brands NGK (Ignition) and NTK (Sensor Technology) and a comprehensive product range, NGK Spark Plug is the market leader in the areas of spark plugs, glow plugs, ignition coils, lambda sensors, spark plug connectors, and ignition cables. The company philosophy "Performance through precision, precision for performance" reflects the high standards for its products. Through high-quality products and as a globally operating original equipment supplier for well-known vehicle manufacturers, NGK has been the world market leader in its field for many years.