Four Seasons 37805 HVAC Blower Switch Case IH International HD Navistar

The Four Seasons 37805 is a replacement HVAC system switch designed for heavy-duty commercial and agricultural applications. This blower/fan control switch restores proper climate control operation in Case, Case IH, International HD, and Navistar vehicles and equipment from the 1993–1997 model years.

Key Features:

• Direct OEM-replacement fit for Case, Case IH, International HD, and Navistar applications (1993–1997)
• Controls blower motor speed and HVAC fan operation
• Manufactured by Four Seasons, a trusted name in thermal management and HVAC components
• Designed to meet or exceed original equipment specifications for reliable, long-term performance
• Plug-and-play installation — no modification required

Four Seasons has been a leading supplier of HVAC components for automotive, commercial truck, and heavy equipment markets for decades. The 37805 switch is engineered to restore full climate control functionality and is an ideal solution for fleet maintenance, farm equipment service, and commercial vehicle repair.