In order for the engine's air-fuel mixture to ignite perfectly, a stable spark is required at the right time. The correct choice of spark plugs is therefore essential for optimal combustion and power development of the engine. Particular attention should be paid to the manufacturer's specifications regarding the heat range. Since every manufacturer specifies the heat range differently, for example, a Bosch heat range of 3 can correspond to an NGK value of 9. For guidance, the manufacturer's specifications, including alternative spark plugs and their exact designations or type codes, are listed in every vehicle handbook.

We work with official vehicle application lists from manufacturers and offer you exactly the right spark plug for your vehicle.

Caution is advised when using suppressed spark plug connectors; double is not necessarily better. In this case, a suppressed spark plug should not be used, as the total 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 provides excellent corrosion protection

NGK Iridium spark plugs improve throttle response, proactively protect against carbon fouling, increase ignitability, and thus ensure smooth engine operation and prevent misfires and cut-outs. The very high melting point of Iridium is perfectly suited for today's engine technology and ensures excellent acceleration, fuel efficiency, and durability.

The fine Iridium tip ensures a consistently stable spark; additionally, the electrode coating provides excellent corrosion protection.

Technical features:

• Type designation: LMAR8AI-8
• Electrode type: Iridium
• Thread type: especially long thread
• Thread length: 26.5 mm
• Thread diameter: 10.0 mm
• Wrench size: 14.0 mm
• Electrode gap: 0.80 mm
• NGK heat range: 8
• Resistance: Suppressed
• Seat design: Sealing ring
• Scope of delivery: 1 piece

The correct torque for spark plugs:

NGK Spark Plug

With the two brands NGK (ignition) and NTK (sensors) and a comprehensive product range, NGK Spark Plug is the market leader in the fields 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 own products. Through high-quality products and as a globally active original equipment manufacturer for renowned vehicle manufacturers, NGK has been the world market leader in its field for many years.