Ijust replaced all the grommets and the plastic tube that goes across the top
of the tank(it has a white y connection at each end and a black tube in
middle. I also replaced all the hoses and the grommet for the fillet tube.
This was all done on a 84 Westy.

Grommets 3 needed at $3.24 each     PN        N-901-004-01
Plastic tube(incl ends)$27.28           PN          251-201-147-B
Filler seal                    $6.96                PN      251-201-139-A

Also someone asked me the PN for the fuel distibuters which I replaced
PN 025-133-317        $28.18 each

Hope this helps. Any questions hit me back.

Bill M