Weber 80477 Gas Valve and Regulator Assembly - Weber Q 100 & 120 series

What Problem This Part Solves

A faulty or worn gas valve/regulator can cause low flame, uneven heat, difficulty controlling temperature, or safety issues such as sudden flame drop or gas leaks. Replacing it with the Weber 80477 assembly restores proper propane pressure regulation and burner control—leading to reliable ignition, even heat distribution, and safer grilling.

Key Features

• Genuine Weber OEM gas valve and regulator assembly
• Designed for Weber Q 100 and Q 120 series grills
• Regulates propane pressure for steady heat output
• Integrated control valve for accurate flame adjustment
• Quality construction for reliable outdoor use

Compatibility / Fits Models

Fits Weber Q 100 series propane grills
Fits Weber Q 120 series propane grills

Weber Models

386001, 386002, 396001, 516002, 516501, 516801, Baby Q, Q100, Q120

This regulator does not fit the Q1000 & Q1200 series. For these models, please see valve & regulator assembly 64866

Confirm your exact model number and fuel type before ordering. This assembly is for propane models only.

Installation / Use Instructions

Turn off the propane supply and disconnect the tank.
Remove control knobs and access panels to reach the existing valve/regulator assembly.
Disconnect the old assembly from the gas line and manifold, then install the new Weber 80477 unit.
Reconnect gas lines, reinstall knobs and panels, and perform a gas leak test before use.

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FAQ Section

Does this fit my grill?
This gas valve and regulator assembly fits Weber Q 100 and Weber Q 120 series propane grills. Verify your model number before purchasing.

What is this part made of?
The Weber 80477 assembly includes metal valves and a calibrated regulator designed for outdoor propane grill use.

How long should this part last?
With proper installation and care, a quality OEM valve and regulator can last many grilling seasons. Replace if you notice performance issues or wear.

How do I install it?
Disconnect propane, remove the old valve/regulator assembly, install the new unit using original mounting hardware, reconnect gas lines, reinstall knobs, and test for leaks before use.

Why choose this replacement part over others?
This is a genuine Weber OEM part engineered specifically for Q 100 and Q 120 grills, ensuring correct fit, reliable gas pressure control, and safe grilling performance.