The Dorman HVAC Heater Water Shut-Off Valve Actuator is designed to ensure proper control of the heater water shut-off valve in Blue Bird and Peterbilt vehicles. This actuator is designed as a direct replacement for the original and is constructed with durable materials to withstand the demanding conditions of HVAC systems and provide long-lasting durability. Installation is easy and requires no special tools or equipment. With its reliable and consistent performance, this actuator is the perfect solution for keeping your HVAC system running smoothly. FleetPride is your First Click in Heavy Duty®.