Genuine NOS.This set includes 4 Magneti Marelli TIX7A glow plugs designed for Land Rover, Range Rover, and Alfa Romeo vehicles. The glow plugs are pencil-type with a rated voltage of 11 and a tightening torque ranging from 15 to 25. The thread size is M12 x 1.25 with a cone pitch of 63, suitable for fitting depths of 30mm. The plugs have a length of 75mm and require a 12mm spanner size for installation, featuring an M5 port/connector type. This set provides essential components for the ignition system of compatible vehicles.