Furnace Plenum Thermostat for Bryant & Lennox, HH12ZB150, 47-25349-03

Gas Limit Furnace Thermostat | SHL510 | Replaces Bryant & Lennox HH12ZB150, 47-25349-03 | OEM-Compatible

Ensure safe and efficient furnace operation with this brand-new SHL510 gas limit thermostat. Designed to replace Bryant® and Lennox® part numbers HH12ZB150 and 47-25349-03, this high-limit switch helps protect your heating system from overheating by interrupting power when internal temperatures exceed safe thresholds. Ideal for residential and light commercial gas furnaces, this thermostat offers reliable thermal protection and OEM-grade performance.

⚙️ Features & Benefits:

• ✅ OEM-compatible replacement for HH12ZB150 and 47-25349-03
• Opens at designated high-limit temperature to prevent overheating
• Designed for use in gas furnaces and HVAC systems
• Durable construction with secure mounting tabs
• Brand New – Unused and ready to install
• Compact design for easy replacement and universal fit

Replaces Part Numbers:

HH12ZB150, 47-25349-03

✅ Fits Models:

Compatible with select Bryant and Lennox gas furnace models. Please refer to your unit’s service manual or model tag to confirm compatibility.

️ Installation Tips:

• Disconnect power and shut off gas supply before servicing
• Locate the existing limit thermostat on the furnace heat exchanger or plenum
• Remove mounting screws and disconnect wire terminals
• Install new thermostat in the same orientation and reconnect wires securely
• ✅ Restore power and gas, then test furnace operation and safety cutoff

Reliable protection. OEM-grade safety. Restore your furnace’s performance with this high-limit thermostat replacement.