indesit d41 spares?

Hi i need a short hose from the recirc pump on my indesit d41. Yet every site i have looked at show these parts as no longer available. Does anyone know where i can get a replacment or failing that is there any restrictions on using some other hose (i.e what is the maximum temperature etc).

I believe the part number is 5031-6893-6491-1

Thanks

Martin