NGK sets standards in meeting the highest quality requirements. With advanced technology, NGK ensures a standard of performance for spark plugs that can withstand extreme conditions. Over 90% of all Japanese cars and two-wheelers are factory-fitted with NGK products. Spark plugs from NGK are both tried and tested and advanced. Specialists in action when it comes to maximizing performance while minimizing the burden on the environment.Technical description and delivery data:Spark plug NGK D8EA.NGK is the world's leading manufacturer of spark plugs.State-of-the-art production facilities, large investments in research and development, as well as the strong commitment in racing, from Formula 1 to two-wheel motor racing, make the NGK spark plug so successful.Particularly vibration-proof ATTENTION: If the heat value is too low, it can damage the engine.Therefore always ask the authorized workshop first.Wrench size: 20,8 mm.External thread (in mm): 14 mm.Thread length (in mm): 19 mm.Spark plug connector: removable SAE connection.Spark position (in mm): 3 mm.Spark plug electrode: Nickel center electrode.Spark plug suppression: not suppressed.Spark plug sealing seat: with flat sealing seat.Manufacturer number: 2120.Manufacturer: NGK.