Jason,
Sorry for the delayed response. I was trying to catch up with all the weekend requests and also double checking on the warranty information.
The warranty is based on the original product and not the replacement product. The replacement product does not add or no take away time from the original warranty. So the replacement pump is only covered for the time in which the original pump was covered. At this time, the original purchased item is out of warranty so both the original and replacement pumps are out of warranty.
We do sell the impellers on our website and you can purchase them directly if you would like. Here is the direct link:
http://www.coralvue.com/reef-octopus-bubble-blaster-3000-skimmer-pump
Kind regards,
Carlos Chacon
CoralVue