Willys developed a winterization kit for very cold climates. This included a cold-starting stove, crankcase ventilator, primer, hood insulation blanket, radiator blanket, a "body enclosure" kit, defroster/de-icer, and snow chains. These kits were however frequently unavailable, so units took their own measures in the field, particularly improvising various body enclosures, to protect the crew from extreme weather. In addition, two companies fabricated snow-plows for the jeep. Geldhill Road Machinery Company made the 7T1NE plow, an angled single blade, while the JV5.5E was a V-shape design. The Wausau Iron Works built two similar designs, designated as the J and JB snowplows. Neither of these seem to have been commonly issued in combat. Photos of snowplows in use in the European theater mostly show improvised plows, likely adaptations of snowplows locally found at hand.