Replace and upgrade your glow plugs in your 2003-2007 6.0L Powerstroke with a glow plug that is designed to withstand the rigorous demands of your engine with the Bosch replacement glow plugs. This plug features Bosch's patented Duraterm technology that enables the glow plug to reach higher temperatures more quickly for fast engine start up. Nickle plated rolled threads for increased strength and prevents seizure in the head. Twin viton seals promote longer life by protecting the coils against damage caused by exhaust gases. Sold individually.