
4711 – 18/5 THERMOSTAT WIRE (250′)
10226 Plano Rd, Suite 104, Dallas TX 75238
Questions? Call or text (214) 340-9421
Mon–Fri 10 am – 7 pm | Sat 10 am – 3 pm
Thermostat wire connects your thermostat to the furnace, air handler, and outdoor unit. 18/5 (18-gauge, 5-conductor) is the standard for most single-stage heating and cooling systems with 5 wires: R, G, Y, W, and C. If you’re running new wire for a thermostat upgrade or replacing damaged wire, this 250-foot roll covers most residential jobs.
Specs: 18 AWG, 5 conductors, 250-foot roll, UV-resistant PVC jacket, solid copper
Replaces: 4711, 47130307, TWR185
Fits: Universal — standard low-voltage thermostat wire for residential HVAC systems
Need help? See our Thermostat Not Working Guide.
In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.
Cross-reference numbers
This part replaces the following OEM and aftermarket numbers:
- 4711
- 47130307
- TWR185
Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.


