Weber 66496 Genesis II 400 & 600 Series Corrugated Main Gas Line

What Problem This Part Solves
This gas line replaces cracked, clogged, or leaking internal gas tubes that can cause uneven flames, weak burner output, or dangerous gas leaks. Since it’s a primary connection between the manifold and burners, replacing it restores safe gas delivery and consistent heat across all burners.

Key Features
Corrugated stainless steel gas line for durability and flexibility
Transfers gas from the manifold to burner tubes for proper operation
Designed specifically for Genesis II 400 & 600 series grills
Resists heat, corrosion, and vibration in high-use environments
OEM fit ensures leak-free and secure connections

Compatibility / Fits Models
Fits Weber Genesis II 400 series gas grills
Fits Weber Genesis II 600 series gas grills
Compatible with models such as E-410, S-410, E-610, and S-610

GENESIS II LX 440, GENESIS II LX 640

Designed for both propane and natural gas configurations (line itself is not fuel-specific)
Fits most grills within this series—confirm model number before ordering

Installation / Use Instructions
Turn off and disconnect gas supply
Remove control panel and access internal gas line
Disconnect old corrugated line from manifold and burner assembly
Install new gas line and tighten fittings securely
Perform a full leak test before operating the grill

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FAQ Section

Does this fit my grill?
This gas line fits Weber Genesis II 400 and 600 series grills. Confirm your model before ordering.

Is this for propane or natural gas?
The gas line itself works with both fuel types—it simply transfers gas within the grill.

What does this part do?
It carries gas from the manifold to the burners, allowing proper ignition and flame distribution.

How do I know if mine is bad?
Signs include uneven flames, gas smell, visible cracks, or poor burner performance.

Is installation difficult?
It requires accessing internal components—basic mechanical skill is needed, and a leak test is essential after installation.