I picked up a spare from these guys
https://www.pegasusautoracing.com/productdetails.asp?RecID=7550When I first installed mine I had problems with the pump cutting out in hot weather.so i made a heat shield from a 3x5 piece of alum. sheet.I cut two slots in it and attached it to the header pipe nearest the pump.I've had no trouble since,45k miles and going strong.