HOME Product Glow Plugs Glow Plugs Print this page The glow plug is used to assist in the start-up of the diesel engine. Ceramic Type Glow Plugs To the heat generating portion, we adopt ceramic heater which is heat resistance and high-temperature durability. Metal Type Glow Plugs The heating coil is in a heat-resistant metal tube. Glow Controller This auxiliary system is to ensure the startability improvement of diesel engines.