Disclosed is an internal combustion engine component which is made of an aluminum alloy and comprises at least one area that is subjected to a great thermal load during operation of the internal combustion engine. For sealing a connection of each fuel injector to the respective connecting piece of the fuel distributor line, a ring-shaped seal support is provided for each, having an inner sleeve which is guided by a guide section of the inlet section, and having an outer sleeve which radially surrounds the inner sleeve and is elastically connected to the inner sleeve radially. Optionally, the vacuum pump can be reversible for blowing instead of sucking air in pneumatic communication with the hair processor. The light source module includes a light guide element, a first reflective sheet, a second reflective sheet, at least one light source and a fluorescence member.