Hi, does anyone have a part number for either parts 3 and 1? Maybe part 3 doesn't need a gasket but I guess I need the o-ring that is part 2 to seal up part 1. Thanks, Daniel.
Both parts no longer available: https://www.fowlersparts.co.uk/parts/4328281/ay50y-vwxy-y-2000/water-pump-model-ay50wwr