M10x1.0 GLOW PLUG THREAD REPAIR KIT P/n 4010GP. The tools have stops so you cannot hit the seat at the bottom of the glow plug hole in the short versions of this glow plug. Printable instruction sheetKit includes 5 inserts. This kit will repair Long reach glow plugs found in Ford heads Champion p/n CH237
or Dodge sprinter p/n NGK Y-745U
Short reach glow plugs example Volkswagen Champion p/n CH271/ Bosch (80028) 0250202022
blown out spark plug, blown out spark plugs blow out. blown out spark plugs.