Wellman Glow Plugs 2003-2007 Ford 6.0 6.0L Diesel Powerstroke (set of 8) F350 F250 F450 & Excursion Fits Ford 6.0L Diesel Engines 2003-2007 These plugs heat up 20% faster and get 100 deg. hotter than the original plugs 1 Year Warranty Set of 8