Supco HVAC Electrical Components in Dallas, TX

From hard-start kits to thermostats to universal replacement parts, Supco is one of the most trusted names in HVAC electrical components. Open To Public HVAC Parts stocks a wide range of Supco products at our Dallas store — the small but critical parts that keep systems running. No wholesale account needed — walk in, find your part, and get back to the job.

Supco Products We Carry

Our Supco inventory includes hard-start kits and potential relays, universal defrost timers and boards, temperature and limit controls, transformers, wire nuts and connectors, universal ignitors, flame sensors, and an assortment of other replacement electrical components. Supco specializes in making universal replacement parts that fit across multiple brands, which means faster repairs with fewer special orders.

Hard-Start Kits

Compressors that struggle to start — especially on hot Dallas summer days when voltage sags — benefit from a Supco hard-start kit. These kits provide an extra boost of starting torque that gets the compressor running quickly and reduces electrical stress. They are one of the most cost-effective upgrades for older systems or units on long electrical runs.

Related Parts & Supplies

Find everything for your electrical repair: capacitors and contactors, relays and pressure switches, motors, and tools and instruments.

Store Location & Hours

Address: 10226 Plano Road, Suite 104, Dallas, TX 75238
Phone: 214-340-9421 (call or text)
Hours: Monday–Friday 10am–7pm | Saturday 10am–3pm | Closed Sunday

Serving Garland, Richardson, Mesquite, Plano, and the greater DFW area.

Frequently Asked Questions

What is a hard-start kit and does my AC need one?

A hard-start kit is a capacitor and relay combination that gives your compressor an extra electrical boost during startup. It is especially useful for older compressors, systems on long electrical runs, or units that struggle to start in extreme heat. If your AC trips the breaker on startup or takes a long time to kick on, a hard-start kit may solve the problem.

Does Supco make parts for my specific furnace or AC brand?

Supco specializes in universal replacement parts designed to work across multiple brands including Rheem, Goodman, Carrier, Lennox, Trane, and others. Bring in your old part or unit model number and we can find the right Supco replacement.