Masterbuilt 9904200046 Gravity 800 Heat Manifold Kit (Grill)

What Problem This Part Solves
This heat manifold kit solves the problem of uneven heating and hot spots by redistributing heat more uniformly across your Gravity 800 grill’s cooking surface for better results when smoking, grilling, or searing.

Key Features
• Replacement heat manifold for Gravity Series 800 grills
• Promotes even heat distribution across the cooking area
• Durable construction designed for high-temperature grilling
• OEM-spec fit and performance

Compatibility / Fits Models
Fits Masterbuilt Gravity Series 800 grills (Models MB20040122, MB20040221) — confirm your grill’s model number before ordering.

Fits Models
MB20040122, MB20040221

Installation / Use Instructions (1–3 steps)
• Ensure the grill is cool and disconnected from fuel.
• Remove the old manifold assembly per your owner’s manual.
• Install the new heat manifold in the same position, ensuring a secure fit.

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FAQ Section (5 questions & answers)

Does this fit my grill?
This kit fits Masterbuilt Gravity Series 800 models (MB20040122, MB20040221). Confirm your model number before ordering.

What is this part made of?
The heat manifold is made from high-temperature resistant metal to withstand prolonged exposure to grill heat.

How long should this part last?
With normal use and proper installation, this OEM manifold should last many cook cycles and seasons.

How do I install it?
Turn off and cool your grill, remove the old manifold, and replace it with this new kit following the manufacturer’s instructions.

Why choose this replacement part over others?
This OEM manifold kit is engineered specifically for Masterbuilt Gravity 800 grills, offering better fit, durability, and heat distribution compared to generic alternatives.