Your browser is not supported. For the best experience, you should upgrade to a modern browser with improved speed and security.

Honeywell - Q340A1066/U Thermocouple, 18”, senses pilot flame on gas-fired heating systems.

Item: Q340A1066
MFR: Q340A1066/U

Store Inventory

Sign in to see real-time inventory at the stores closest to you.
What’s the price?
Sign in for pricing.

Frequently Bought Together

Best Sellers

About This Product

Product Info


Honeywell - Thermocouple, 18-inch, 30 millivolt (mV), with 11/32-32 male connector. Senses pilot flame on gas-fired heating systems. Pilot flame heats tip of thermocouple, producing temperature differential between it and base to generate small amount of DC power, measured in millivolts. Push-in clip, split nut, and adapter assembly for easy pilot burner installation. Spade or quick-connect terminals available for millivolt gas control connections. Male nut connector for Pilotstat® safety control power units. Available in variety of lead lengths.


Weight1.25 Pounds (lbs)
Width3.1 Inches (In)
Height0.5 Inches (In)
Country of OriginMEX
Length2.7 Inches (In)
ApplicationThermocouple for Standing Pilot Applications
Ignition TypePilot
IncludesAdapter and Push In Clip
Prop 65No
Temperature Rating78°F to 1400°F (25.5°C to 760°C)


Equipment Part List