Mr. Heater F273117 Tank Top Thermocouple Lead, Copper, 12-1/2-in.

A thermocouple lead is a critical safety component in gas and propane heaters, continuously sensing the flame and signaling the safety valve to permit gas flow. The F273117 is a direct replacement for most Mr. Heater tank top models manufactured prior to 2011, restoring reliable flame detection and safe operation to your heating system.

This 12-1/2-inch copper thermocouple lead is engineered to withstand high temperatures and resist corrosion, ensuring consistent performance season after season. Installation requires no special tools—simply disconnect the failed lead and attach the new one. Using the correct replacement part ensures proper fit within your heater assembly and restores the critical safety link between flame and gas valve.

Features and Benefits

• Precise 12-1/2-inch length: Matches original specifications for seamless drop-in replacement in tank top assemblies.
• Flame-sensing safety: Provides reliable detection of the burner flame, preventing unsafe gas flow and protecting your home.
• High-temperature copper construction: Resists corrosion and wear even in demanding heating environments, delivering stable long-term performance.
• Easy DIY installation: Straightforward replacement with no special tools or technical expertise required.
• Compatible with most Mr. Heater tank top models: Designed as a drop-in replacement for models prior to 2011.

Specifications

• Brand: Mr. Heater
• Model: F273117
• Length: 12-1/2 inches
• Material: Copper
• Application: Most Mr. Heater tank top models (prior to 2011)