Front crankshaft seal ring
between front pulley and
crank gear,
will fit old 6 cylinder
single cam engines 65-73,
M108/M114/M123/M129/M130/M180,
W108/W109/W110/W111/W113,
W114/W123
Front crankshaft seal spacer
between front hub and sprocket,
should be replaced when seal
is replaced,
will FIT all single cam
4-cylinder engines 55-68
M115/M121,
OM615/OM621