Its face side which is averted from the glow plug shaft, therefore, protrudes beyond the free end of {HEAD ~ the glow rod} and is pressed onto {TAIL ~ the face} of the filter body 
Its face side which is averted from the glow plug shaft , therefore , protrudes beyond the free end of { HEAD ~ the glow rod } and is pressed onto { TAIL ~ the face } of the filter body
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH