I used a BritPart window motor on my Discovery 4 and had no problems. However, a window motor is fitted out of sight - I cannot comment on the finish on a BritPart stalk.

Looking on Land-Rover forums, there seem to be as many negative comments on Lucas as there are on BritPart.

Paul
Costock, UK
2014 4/4 Rolls Royce Garnet Red
Disco 5
Teddy - 17h1 Irish Draught cross