Browse capacitors at Stockpile Express and find crucial components for efficient HVAC systems. Featuring internal terminals connected by metal plates, a capacitor is an electrical device that releases energy right away or stores it to distribute over time. Find start and dual-run capacitors for outdoor air conditioning units and heat pumps, and single-run capacitors most frequently found in furnaces. To simplify your search for AC capacitors, use our helpful filters to narrow the results by material, horsepower, and size. Explore reliable capacitors from trusted makers, including Mars, Source 1, and Copeland, at Stockpile Express, and find the right match for your HVAC/R system.