ICP Gas Valve Support Bracket for RGS121HEAA0AAAA — OEM 1178238 | Ships Today

Overview

This is the genuine OEM gas valve support bracket (part #1178238) for the ICP / Tempstar / Heil RGS121HEAA0AAAA gas furnace. The bracket mounts the main gas valve to the burner assembly, keeping it rigidly positioned so the gas manifold, burner orifices, and inlet/outlet piping stay in correct alignment. A loose, corroded, or missing bracket lets the valve sag and stress the gas line connections, which can lead to manifold misalignment, noisy ignition, or a small gas leak at the threaded joints. Replacing a damaged bracket restores proper valve support and protects the rest of the gas train.

Specifications

Compatibility

Engineered for the ICP family RGS121HEAA0AAAA gas furnace and other RGS-series units that use the same burner and gas-valve layout. Because ICP, Tempstar, Heil, and Comfortmaker share platforms, this bracket fits across those equivalent badges. Always confirm 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 any wiring/tubing routing before disconnecting.
4. Remove — Disconnect the gas line union and valve wiring, unbolt the old bracket from the valve and burner assembly, then 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 a clean ignition and 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 — if it doesn't fit your unit, we'll make it right.