I have no idea about disassembling one of these, I did a search and it appears the reman part number is A1 Cardone 32-2403M or new GM part numbers 15928252 ; 215-675; 215675. Not 100% sure on the part numbers, be sure to confirm with a dealer before purchase. Odd looking contraption. Since I was a part of the madness when the pump ingested the salt I would be happy to pitch in for a replacement.