Will 12 rims fit on a 2014 kawaski mule 4010 without a lift kit?

No, 12-inch rims will not fit on a 2014 Kawasaki Mule 4010 without a lift kit. The stock setup typically accommodates smaller rims, and using larger ones can lead to clearance issues, especially with the tires mounted. It's advisable to consult the manufacturer's specifications or a professional to ensure proper fitment and avoid potential damage.