ICP Gas Valve Support Bracket for RGS121HDCB0AAA — OEM 1178238 | Ships Today

Overview

Genuine OEM gas valve support bracket (part #1178238) for the ICP / Tempstar / Heil RGS121HDCB0AAA gas furnace. This bracket secures the main gas valve to the burner assembly, holding it in the correct position so the gas manifold, burner orifices, and inlet/outlet piping remain properly aligned. When the bracket corrodes, cracks, or goes missing, the valve can sag and place stress on the gas line connections — a path to manifold misalignment, rough ignition, or a slow leak at the threaded joints. Installing a fresh OEM bracket restores solid valve support and keeps the entire gas train secure.

Specifications

Compatibility

Engineered for the ICP RGS121HDCB0AAA gas furnace and other RGS-series units sharing the same burner and gas-valve layout. Because ICP, Tempstar, Heil, and Comfortmaker build on common platforms, this bracket fits across those equivalent badges. Verify your existing bracket geometry against the OEM part before ordering.

Installation Guide

1. Safety First — Shut off the gas supply and disconnect electrical power. Verify zero voltage with a multimeter before working.
2. Access — Remove the furnace front service panel to expose the burner box and gas valve.
3. Document — Photograph the gas valve, bracket orientation, and tubing/wiring routing before disconnecting.
4. Remove — Disconnect the gas line union and valve wiring, unbolt the old bracket from the valve and burner assembly, and lift out the valve and bracket.
5. Install — Mount the gas valve to the new bracket, secure the bracket to the burner assembly, and reconnect the gas piping and wiring per your photos.
6. Test — Restore gas and power, leak-check all joints with soap solution, and verify clean ignition with a steady flame.

Signs You Need a Replacement

• Gas valve sagging, tilting, or no longer firmly mounted
• Cracked, bent, or rust-eaten bracket metal
• Stress or small leaks at the gas line threaded connections
• Rattling or vibration noise from the burner area during operation

Shipping & Returns

Ships same day on orders placed before 3 PM CST. 30-day hassle-free returns. Backed by the National HVAC Parts fitment guarantee.