John Ward’s men had lost their last four games on the spin before Saturday’s League One trip to stadium:MK but took an unlikely early lead through former Middlesbrough striker Danny Graham.
Unaccustomed to the lead, the Cumbrians failed to capitalise on Graham’s strike and Leven turned the tide with a goal of his own before teeing up Miguel Angel Llera and sealing the win himself.
Cleveland Taylor’s superb third-minute cross picked out Graham and he guided a superb header into the top corner from 12 yards.
Leven drove home a crisp shot from the edge of the box after 38 minutes before centre-half Llera headed in Leven’s superb cross at the back post just after the hour.
Jude Stirling was brought down by Danny Livesey in the 88th minute and Leven blasted his spot-kick straight down the middle for his fifth goal of the season.