New Surplus Cessna Airbox Assembly p/n 2250097-6 Cessna TR182. We found these in an inventory we purchased. Airbox has never been installed. Does NOT come with any paperwork. We measured all the inlets and outlets on this and they are as follows, 3 inches OD (See second picture), 2.5 inches wide by 1 inch high (See fourth picture), larger hole 3 inches OD, smaller hole 2.5 inches OD (see fifth picture) 3.25 inches high by 2.5 inches wide (see sixth picture). We believe that this airbox will fit on Cessna Aircraft Model TR182 with serial numbers R18200584 and on.