Hi John
If yours is a 3.9 plus 8 it should be the same as mine. I’ve taken the advice on Gomog and from Rich8 and ordered from amazon a Gates 6PK 1025 - the standard belt is a 7PK 1025 though these are prone to squeal when wet, the 6/7 apparently refers to the width, the 6PK being slightly narrower and thus not rubbing on the sides of the pulley which is where the squeal originates. £18.61 delivered to France
