the first one went bad in January. he replaced it and the new one went bad about 2 months later. Replaced it and that one just went bad the other day. what would be causing this? I found the pumps for him brand new on ebay for about 60 or 70 bucks. Autozone wanted like 300. My brother keeps blaming the cheap ebay parts. The thing is, they are the same brand, just cheaper on ebay. I feel like i tried to save my brother money and now i'm making him spend more money.