The Bulgarian star joined United in the summer and unlike most of the current Old Trafford playing staff is yet to win a title.
Another crown for United this term would see them equal Liverpool's record of 18 domestic championships and Berbatov is determined to help the club claim the historic milestone.
"The players here who have already won it, need it again and again and again," he said.
"I have none of that. When I am here, it is like I need it - I want it.
"With the help of everybody, with the right amount of effort on the pitch and with the team we have, I am pretty sure we can win it again."