Mercedes W116 W123 R107 alternator. The part number is AL80. Please make sure this matches yours.
Fits
74-78 230.
74-83 240D.
73-76 280.
73-76 280C.
78-81 280CE.
77-81 280E.
75-76 280S.
77-80 280SE.
78-81 300CD.
75-81 300D.
78-80 300SD.
79-80 300TD.
73-76 450SE.
73-80 450SEL.
73-80 450SL/SLC
Fits
74-78 230.
74-83 240D.
73-76 280.
73-76 280C.
78-81 280CE.
77-81 280E.
75-76 280S.
77-80 280SE.
78-81 300CD.
75-81 300D.
78-80 300SD.
79-80 300TD.
73-76 450SE.
73-80 450SEL.
73-80 450SL/SLC