BP18-8 – THERMOSTAT WIRE ROLL (18G, 8W, 250′)

Thermostat wire connects your thermostat to the furnace, air handler, and outdoor unit. 18/8 (18-gauge, 8-conductor) gives you enough wires for multi-stage heating/cooling, heat pump systems, or setups with accessories like humidifiers and dehumidifiers. If you’re running new wire, the extra conductors give you room for future upgrades.

Specs: 18 AWG, 8 conductors, 250-foot roll, moisture-resistant insulation, UV-resistant PVC jacket, solid copper

Replaces: 47160307, BP18-8, SW65676902

Fits: Universal — standard low-voltage thermostat wire for residential and light commercial 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:

• 47160307
• BP18-8
• SW65676902

Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.