3W2 – HARD START KIT (3 WIRE, 3.5-5 TON)
Supco 3W2 hard start kit for 3.5-5 ton compressors. 3-wire design with potential relay and start capacitor. Built for larger residential and light commercial AC.
Walk in. We test every part free at the counter. Open to homeowners, contractors, and multifamily — no account or minimum order.
Popular: 45/5 capacitor ECM blower Honeywell ignitor 24V contactor Hard start kit

Ten departments, organized the way our counter is. Every category is on the shelf today.
Bring your old part. We'll diagnose it, find the replacement, and bench-test the new one at the counter before you leave — so you only make one trip.

¿Buscas partes de HVAC en Dallas?
Visita nuestra página en español — mismas partes, mismo mostrador, atendido en español.
Ver página en español →Showing 21–30 of 1291 results

Supco 3W2 hard start kit for 3.5-5 ton compressors. 3-wire design with potential relay and start capacitor. Built for larger residential and light commercial AC.

20″ aluminum 3-blade condenser fan blade. 28° pitch, CW rotation, hubless (no hub). Replacement for HVAC condenser and heat pump units.

4″ x 4″ x 4″ galvanized duct wye. Splits one 4″ round duct into two equal 4″ branches. Standard fitting for residential HVAC ductwork.

24V triple-stacked heat sequencer for Lennox electric furnaces. Thermal time delay relay that stages heating elements and fan activation.

20″ aluminum 4-blade condenser fan blade. 29° pitch, CW rotation, hubless (no hub). Replacement for HVAC condenser and heat pump units.

Manual reset micro limit switch, opens at 135°F. Push-button reset after trip. Universal replacement for Supco SRL135 and Packard PRL135. Common in furnaces and unit heaters.

Clean Comfort AMP-11-2025-45 replacement filter for Honeywell 20×25 air cleaners. MERV 11, 4.5″ deep. Replaces Honeywell FC100A1037 and X6673.

Hilmor service hex key adapter for 3/16″ and 5/16″ hex valves. Makes opening liquid and suction service valves quick and easy without fumbling for Allen keys.

270-324 MFD 330V start capacitor with bleed resistor. Gives the compressor an extra boost on startup. Resistor is built in — no separate wiring needed.

3/8″ ACR copper 90° long radius street elbow (FTG x C). One end fits inside a fitting, the other accepts pipe. Wrot copper for brazing.