Distributor O-Ring. See #6 in second illustration. FITS 1969-1987 XJ6 4.2, 1988-1994 XJ6 3.6 4.0, 1995-1997 XJ6 4.0 1975-1989 XJS with Lucas distributor. This is the oil seal O-ring that goes around the distributor body where it goes into the engine block. Fits 1980-1987 XJ6 Fits XJ6 (2.9, 3.2, 3.6, 4.0) From (V)500001 Up to (V)667828 Fits 4.0 XJS (From (V)139052 up to (V)226645) Fits XJ6 From (V)667829 up to (V)708757) (513682J)
