This may be a closer match to the stock inductor:
http://www.mouser.com/ProductDetail/...ZBsTfTG7 Q%3d
It has a maximum current rating of 0.8 amps, still well below what I would have expected the design to require.
There is another Bourns inductor of the same inductance but with a 4 amp capability:
http://www.mouser.com/Search/Product...42-5900-390-RC
I believe this is physically larger than the stock one, although I haven't measured the stock one yet.