For the drivers side wiper arm.
This is the grommet for the windscreen washer tube also used for the bonnet release cable.
Windscreen wiper wheel box rubber seals pair one left side one right side
Windscreen wipers & Washers switch MK1 For Right Hand Drive up to Commision number LD20000
Windscreen wiper wheel box (Lucas).
Alternative part number: 37H7084