DG628 DENSO Glow Plug

The Glow Plug from DENSO (MPN: DG628) is sourced from Italy and has supplier-listed dimensions of 22 x 25 x 95 mm. It is typically used within the Service Parts > Major Service > Glow Plugs category of automotive replacement parts. Dimensions are provided by the supplier and may include packaging dimensions. Glow plugs are heating elements utilized in diesel engines to initiate combustion within cold cylinders. Positioned within the pre-combustion chamber or directly in the cylinder head, they rapidly heat incoming air to facilitate ignition when engine temperatures are low. These metallic heating rods typically employ a resistive heating element sheathed in a high-temperature alloy, energized by the vehicle’s electrical system. Modern glow plugs often incorporate ceramic or metal sheathing for increased durability and faster heat-up times, and are controlled by the engine control unit (ECU) for precise operation. Failure manifests as hard starting, excessive smoke, and potential misfire.