The NEW AC Heater Climate Control Module for Chevy with Improved Design 599-211XD is a durable and reliable HVAC control module designed for effortless installation. Featuring a bolt-on mounting style with a black plastic construction, this module comes with 24 terminals in 2 plugs for a secure connection. With a 1-year manufacturer warranty and no drilling or modifications needed for installation, this control module is a convenient and efficient replacement for your vehicle's HVAC system. Upgrade to this automatic control module for improved functionality and peace of mind on the road.