Weber 66686 Genesis II 400 Series Heat Deflectors

What Problem This Part Solves
These heat deflectors replace rusted, warped, or missing plates that cause uneven heat and expose burners to grease. They restore proper heat reflection and help reduce flare-ups by shielding burners and improving heat distribution. Heat deflectors are critical because they sit below the burners and reflect heat back toward the cooking surface for more efficient grilling.

Key Features
Set of 4 stainless steel heat deflectors
Designed to reflect heat upward toward cooking surface
Each deflector installs below the burners for optimal performance
Approx. 12-1/2" long x 4-1/4" wide per piece
Durable stainless steel construction resists corrosion and high heat

Compatibility / Fits Models
Fits Weber Genesis II 400 series gas grills (2016–present)
Fits Weber Genesis (2022+) 400 series grills
Compatible with models such as

GENESIS 435
GENESIS II 410, GENESIS II 435
GENESIS II LX 440

SUMMIT FS38, SUMMIT FS38X, SUMMIT GC38, SUMMIT SB38

Fits most grills within this series—confirm model number before ordering

Installation / Use Instructions
Allow grill to cool completely
Remove cooking grates and burner tubes if needed
Place deflectors beneath burners in designated slots

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FAQ Section

Does this fit my grill?
This set fits Weber Genesis II 400 series grills (2016+). Confirm your model before ordering.

What is this part made of?
It is made from stainless steel designed to withstand high heat and resist corrosion.

How long should this part last?
With proper maintenance, heat deflectors can last several years depending on usage and cleaning habits.

How do I install it?
Place the deflectors beneath the burners—installation is simple and typically requires no tools.

Why choose this replacement part over others?
This is a genuine Weber part, ensuring proper fit, improved heat distribution, and long-term durability compared to aftermarket alternatives.