In a stunning move, City Council members are mulling even fatter raises for themselves than the 23 percent boost recommended by a mayor-appointed panel, sources told The Post Wednesday.

The 51-member council on Feb. 5 is expected to push through a hefty raise package for all elected city officials that could include boosting council members’ salaries to as high as $150,000, the sources said. The council is also expected to approve Mayor de Blasio’s controversial plan to shrink the carriage-horse industry and move its entire operation within Central Park.

A three-member panel convened by Blasio last month recommended council members’ salaries rise from $112,500 to $138,315 and that Speaker Melissa Mark-Viverito get a 37-percent pay hike to $154,375.

But some council members have privately griped about wanting higher raises — which would be their first since 2006 — because they’re being forced to give up annual “lulu” bonuses of $8,000 to $25,000 each for chairing committees.

The panel’s recommendations, which are purely advisory, also call for council members giving up all outside income and making the position a full-time job.

Council sources said any decision to go above the panel’s recommendations would only come in conjunction with “significant” additional reforms.