Furnace Plenum Thermostat for Bryant & York, HH12ZB140, 025-29041-005

Gas Limit Furnace Thermostat | SHL505 | Replaces Bryant & York HH12ZB140, 025-29041-005 | OEM-Compatible

Ensure safe and efficient furnace operation with this brand-new SHL505 gas limit thermostat. Designed to replace Bryant® and York® part numbers HH12ZB140 and 025-29041-005, this OEM-style high-limit switch helps protect your heating system from overheating by interrupting power when temperatures exceed safe thresholds. Ideal for residential and light commercial gas furnaces.

Features & Benefits:

• OEM-compatible replacement for HH12ZB140 and 025-29041-005


• 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

Replaces Part Numbers:

HH12ZB140, 025-29041-005

Fits Models:

Compatible with select Bryant and York gas furnace models. Please refer to your units 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

Installation Disclaimer:

This furnace thermostat is intended for use by licensed HVAC technicians or individuals with proper heating system repair experience. Buyer is responsible for verifying compatibility and ensuring safe installation. Improper handling may result in equipment damage, fire hazard, or personal injury. Seller assumes no liability for misuse or incorrect application.

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