ACDelco's Professional Glow Plugs meet a wide range of vehicle applications and budgets, making them the perfect choice when it is time to replace your Glow plugs. Product Features:Designed to give diesel engines the heat they need for cold startsThe ACDelco Professional Glow Plugs can function under higher voltages than other glow plugsGN-type regulating coilSelf-regulating to control electrical flow from battery as temperatures rise to avoid overheatingFull range of reaches - from 21mm to 40mm - to meet chamber requirements in a wide variety of applications
