Designed to give diesel engines the heat they need for cold starts
The ACDelco Professional Glow Plugs can function under higher voltages than other glow plugs
GN-type regulating coil
Self-regulating to control electrical flow from battery as temperatures rise to avoid overheating
Full range of reaches – from 21 mm to 40 mm – to meet chamber requirements in a wide variety of applications
Manufactured to restore your vehicle’s ignition system
Professional Glow Plug
ACDelco's Professional Spark Plugs meet a wide range of vehicle applications and budgets, making them the perfect choice when it is time to replace your plugs. Choose from our Iridium, Platinum, Conventional, Rapidfire and Marine lines depending on your performance needs. And, diesel drivers also can get the ACDelco advantage with our high-quality Glow Plugs. We've got a plug for almost any vehicle on the road today.
Specially designed to give diesel engines the heat they need for cold starts, these ACDelco Professional Glow Plugs will maintain ignition in all cylinders, improving throttle response and reducing exhaust emissions. For dependability and long-lasting performance, use ACDelco glow plugs.