Glow plug with the pressure sensor! This is an original part made and used by a wide variety of TDI Engines on Audi, VW, Skoda, Seat and Some Porches so Please See if your Part Number Matches With Any of the listed below (If you are unsure please message us and we will be happy to help). Manufacture/Compatiple Part Numbers are Listed Below. Only sing Genuine original glow plugs for your vehicle is highly recommended to ensure the highest quality, longevity and most importantly compatibility! (With those cheaper knock off chinese brands/ replacements, they may say that the product will fit however since they're not genuine products they will ever so slightly be the wrong size and certainly will not peform the same as these genuine products do).