Masterbuilt 9904210004 Gravity 800 & 1050 Hopper Top Assembly Kit

What Problem This Part Solves

A damaged or warped hopper top can allow moisture and debris into the pellet supply, leading to pellet swelling, bridged pellets, and feed issues. This replacement restores the hopper’s top structure to protect pellets, maintain consistent flow, and support reliable smoker performance.

Key Features 

• Hopper top assembly compatible with Gravity 800 & 1050 smokers

• Provides structural top support for pellet hopper

• Durable, outdoor-rated construction

• Helps protect pellets from moisture and debris

• Direct OEM replacement part for proper fit

Compatibility / Fits Models

Fits Masterbuilt Gravity 800 pellet smokers
Fits Masterbuilt Gravity 1050 pellet smokers
Fits most Gravity 800 & 1050 configurations—confirm model before ordering.

Fits Models
CGP30G1D, MB20040122, MB20040221, MB20041220, MB20041320, MB20042221

Installation / Use Instructions (1–3 steps)

1. Power Off & Empty Hopper: Unplug the smoker and remove pellets from the hopper.

2. Remove Old Hopper Top: Disassemble the hopper and remove the damaged top section.

3. Install Replacement: Position the 9904210004 hopper top assembly and secure it with original mounting hardware.

Refer to your Gravity Series manual for exact disassembly procedures and safety guidelines.

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FAQ Section (5 questions & answers)

1. Does this fit my grill?
Yes — this hopper top assembly fits Masterbuilt Gravity 800 and Gravity 1050 pellet smokers. Confirm your specific model before ordering.

2. What is this part made of?
It’s constructed from outdoor-rated metal designed to withstand pellet weight, weather exposure, and frequent use.

3. How long should this part last?
With proper installation and normal use, this hopper top should last many grilling seasons.

4. How do I install this part?
Disconnect power, empty the hopper, remove the old hopper top, and install the replacement using the original mounting hardware per your smoker’s manual.

5. Why choose this OEM replacement over others?
This is a genuine Masterbuilt part engineered for exact fit, durability, and protection—ensuring reliable pellet storage and performance compared to generic alternatives.