The NGK Spark Plugs Diesel Glow Plug - 9970 is a high-quality, durable spark plug designed specifically for diesel engines. It is made with advanced technology and materials to ensure reliable starting and smooth engine operation in all weather conditions. This glow plug is compatible with a wide range of diesel vehicles and is known for its long lifespan and excellent performance. It is easy to install and provides a strong spark for efficient combustion, resulting in improved fuel efficiency and reduced emissions. The NGK Spark Plugs Diesel Glow Plug - 9970 is a trusted choice for diesel engine owners looking for a reliable and high-performing spark plug.