Winter grille covers are available as an accessory for Select Series X300 and X500 Tractors.
Note: No longer recommended for model year 2014 and newer tractors
*The winter grille cover is recommended only for air-cooled tractors; use of the winter grille cover on a liquid-cooled tractor may cause the engine to overheat, which will cause the PTO to disengage.
Note: To avoid engine damage, the winter grille cover must be removed when outside temperature reaches 40 degrees F (4 degrees C) or higher.
The purpose of the winter grille cover is to seal the side vents on the hood; they need to be blocked completely. The cover must be aligned properly to accomplish this. If the sides are not sealed, carburetor icing may still be a problem.