Masterbuilt 9904210006 Gravity 800 & 1050 Hopper Bottom Assembly Kit

What Problem This Part Solves

The hopper bottom is exposed to constant heat, burning charcoal, and ash, making it one of the most heavily used components of a Gravity Series grill. Over time it can warp, rust, or burn through, resulting in poor airflow, inconsistent temperatures, and reduced fuel efficiency. Replacing it with the Masterbuilt 9904210006 Hopper Bottom Assembly Kit restores proper airflow through the hopper, helping maintain stable cooking temperatures and reliable grill performance.

Key Features

• Genuine Masterbuilt OEM replacement part
• Complete hopper bottom assembly
• Durable porcelain-coated steel construction
• Designed for Gravity Series® 800 and 1050 grills and smokers
• Restores proper airflow through the charcoal hopper
• Promotes efficient charcoal burning and consistent temperatures
• Direct-fit replacement using factory mounting locations
• Built to withstand high-temperature cooking environments

Compatibility / Fits Models

• Masterbuilt Gravity Series® 800 (MB20040122)
• Masterbuilt Gravity Series® 800 (MB20040221)
• Masterbuilt Gravity Series® 1050 (MB20041220)
• Masterbuilt Gravity Series® 1050 (MB20041320)
• Masterbuilt Gravity Series® XT (CGP30G1D)
• Masterbuilt Gravity Series® XT (MB20042221)

Fits select Masterbuilt Gravity Series® 800 and 1050 charcoal grills and smokers. Confirm your exact model number before ordering.

Installation / Use Instructions

1. Allow the grill to cool completely and empty all charcoal and ash from the hopper.
2. Remove the damaged hopper bottom assembly using the factory hardware.
3. Install the Masterbuilt 9904210006 Hopper Bottom Assembly Kit, tighten all hardware securely, and verify proper alignment before lighting the grill.

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FAQ

Does this fit my grill?
The 9904210006 Hopper Bottom Assembly Kit fits select Masterbuilt Gravity Series® 800 and 1050 models, including MB20040122, MB20040221, MB20041220, MB20041320, CGP30G1D, and MB20042221. Verify your model number before ordering.

What is included in the kit?
The kit includes the genuine Masterbuilt porcelain-coated hopper bottom assembly designed to replace the original lower hopper section.

Why would I need to replace the hopper bottom?
If the original hopper bottom has warped, rusted, cracked, or burned through from prolonged exposure to high temperatures, replacing it restores proper airflow and fuel efficiency.

Is this an OEM Masterbuilt part?
Yes. The 9904210006 is a genuine Masterbuilt OEM replacement part engineered for an exact factory fit and dependable performance.

How difficult is installation?
Installation is straightforward using the original mounting hardware. Empty the hopper, remove the old assembly, install the replacement, and verify proper alignment before using the grill.