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- Give your diesel engine the heat it needs for cold starts with an AC Delco Glow Plug
- Capable of functioning under higher voltages than your factory plugs
- Prevents overheating by self-regulating to control electrical flow as temps rise
- Reaches range from 21mm to 40mm to meet chamber requirements in a variety of applications
- Boasts a GN-type regulating coil
- Your AC Delco Diesel Glow Plug carries a 12-month/12,000 mile warranty