Overview

The World American WA907-20-8646 HVAC air inlet (blend) door actuator is engineered for heavy-duty heating and air conditioning systems in commercial and industrial vehicles. Measuring 4.45 in (L) x 3.20 in (W) x 3.05 in (H) and weighing 0.33 lb, this compact unit regulates the air inlet door to balance fresh and recirculated airflow. The result is consistent cabin temperature, responsive defrost, and predictable HVAC performance under demanding duty cycles.

Design and Compatibility

Purpose-built for the heavy-duty aftermarket, the WA907-20-8646 combines a small footprint with straightforward serviceability, helping technicians work efficiently in space-constrained HVAC modules. It manages door positioning to support efficient heating and cooling output and is cross-referenced to Newstar part IH-3542-606-C, offering sourcing flexibility across mixed fleets. The lightweight design aids handling during preventive maintenance and field replacements without adding complexity to the HVAC assembly.

Service Advantage

For fleet maintenance teams, this actuator provides a reliable replacement path to correct symptoms such as erratic airflow direction, weak defrost, or poor transition between fresh and recirculated air. Stocked through established heavy-duty channels with immediate availability, it supports rapid turnaround on HVAC repairs and helps keep vehicles in service. Use it to restore proper blend door function without replacing the entire HVAC unit.