Does the duramax diesel have glow plugs?

Yes, the Duramax diesel engine has glow plugs. Glow plugs are used to heat the air in the cylinders of a diesel engine before starting, which assists in the ignition of the fuel. The Duramax diesel engine typically uses between four and eight glow plugs, depending on the model and year of the engine. The glow plugs are controlled by a glow plug controller, which determines when and for how long the glow plugs should be activated.