I have never done a 400, but it should be very similar to the 500 and fit with little to no modifications to the kit. You could just call Highlifter or triangle atv to confirm.Im new to this forum. Been thinking about putting a snorkel on my 2014 sportsman 400 but cant find a kit for one. Was wondering if a kit from high lifter for a 2011-2013 sportsman 500 ho would work?