Knobs

BTRAC offers a wide selection of A/C and heater control knobs built to handle the demands of heavy-duty trucks, off-road equipment, buses, and specialty vehicles. Designed for precise control and long-lasting durability, our knobs make it easy to adjust fan speed, temperature, and airflow in any cab environment.

Whether you’re replacing worn or missing knobs or customizing your HVAC control panel, we carry OEM-quality replacements compatible with popular Red Dot, ProAir, and custom systems. Each knob is built to withstand vibration, heat, and daily use, ensuring dependable performance in demanding applications.

From simple temperature selectors to multifunction control dials, BTRAC’s climate control knobs deliver the right fit and feel for your heavy-duty A/C and heating systems.