Found the fuel pump connector housing but could not find just the rubber wire seals. This site has replacement pigtails, instead, that fit the Volvo sealed housing setups like that on the fuel pump module. I'm going to splice in two new 2.5mm and two new 1.5mm pigtails into the harness. Once that's done the fuel pump repair will be complete. This repair will cost about $42 excluding hot-melt splices and shrink tubing I'll use.
Dave's Volvo Page. Hard to find Volvo terminals and connectors.