• Manufacturer: ELRING. • OEM Numbers: 16 083 781 80--CITROËN,3647147--OPEL,16 083 781 80--PEUGEOT,16 083 781 80--DS. 16 083 781 80: PEUGEOT. • Bolt Head-/Nut Design: Male Torx. The manufacturers' report will be final and we shall have no further liability to you.