crwdns2893792:0crwdne2893792:0 Pravin ,
I got mine from Amazon (http://www.amazon.com/Keurig-Mini-Air-Pump/dp/B00CN0GAKE), it was brand new and I paid $20 with free shipping. Sellers in ebay wanted $12-$14 for a used one. I see the price now in amazon is $30 which it too expensive for a less than dollar motor made in china. If the pump is fine you can probably buy the motor alone from RadioShack and replace it.