9904200043 Controller Compatible with Masterbuilt Gravity Series 800 Digital Charcoal Grill + Smokers, Digital Control Panel (Non-Wifi) for Model: MB20040122, MB20040221 Replacement Part
Condition: New
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
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Availability:
In Stock.
Arrives
Tuesday, Dec 16
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Color: 800 Controller
Features
- COMPATIBLE MODELS- 9904200043 Controller Board (Non-Wifi) Compatible with Masterbuilt Gravity Series 800 Digital Charcoal Grill + Smokers, Control Panel Replacement Parts for Models: MB20040122, MB20040221 (TIPS: TIPS: This Controller DOES NOT SUPPORT WIFI, Sometimes the "Masterbuilt Classic" or " Masterbuilt" APP system is unstable and Bluetooth often connect failure or display "error", If this happen to you, try it a few more times, Or use controller physical push-button to control.)
- EASY TO USE- Easy to install and Concise buttons ensure smooth and simple operation. Set the temperature on the digital control panel and the Digital Fan maintains the desired cooking temperature. You can smoke, grill, sear, bake, roast and so much more, easily get delicious barbecue. Enjoy relaxing time with family and friends.
- HIGH QUALITY- Controller Assembly with LED Digital Display. Control temperature and cook time with the digital control panel, accurate display of the smoker grill internal temperature. High temperature resistance and long service life.
- PACKAGE INCLUDES- 1*Digital Control Panel (NOTE: DOES NOT COME WITH ANTENNA). TIP: Many times a defect in another part can be Causes the controller to display an error temperature or not work. Because the motherboard connects to many other parts (such as Meat probe, Temperature Sensor and Hopper Lid/Door Switch), and their damage can make the control board not working. So please check to see if the other parts are working properly.
- WORRY FREE SERVICE- If you have any questions about Controller, please feel free to contact us, we will definitely provide you with a satisfactory solution. If you are dissatisfied with the product, you can request a replacement or a refund. Contact us! We will show you a sincere attitude!
Brand: COMVIEE
Model Name: Masterbuilt Gravity Series 800 Digital Charcoal Grill + Smokers
Power Source: Charcoal
Color: 800 Controller
Outer Material: Alloy Steel
Fuel Type: Charcoal
Product Dimensions: 8 x 3 x 1.39 inches
Item Weight: 9.1 ounces
Item model number: 9904200043
Date First Available: April 14, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Dec 16
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: 1050-Controller
My control panel stopped working mid cook on Thanksgiving day. Fortunately, I had a pellet grill I was able to finish cooking the turkey in. I was beyond frustrated with MB and their control panel. It rarely work with the app and when it did, it was inconsistent. I noticed the temp control was getting a little weird the last couple of cooks. I had to turn the dial more and more to get the temp to move. Finally, on Thanksgiving day, I was adjusting the temp of the 1050 and it dropped all the way down to 225 and I couldn't adjust it up or down after that. I turned it off and unplugged it for a little bit, hoping that would correct it. Nope, it was done. Anyway, that's my rant about the original 1050 control board. This on was easy to install and works great. I'm not worried about the bluetooth or wireless connectivity, because it never worked on the MB control board anyway.
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Reviewed in the United States on December 9, 2024 by Bryan
Color: MB-3*Switch
used this to replace the lid sensor on a Masterbilt Gravity 1050. The sensor that came from factory gave out shortly after purchasing the unit. got tired of slamming my lid , risking further damage, so I decided to give this a try... approx 48hrs of actual cook time into it... and this sensor is still going strong... we'll see how long they last! But I'm satisfied with the cost and reliability , as of now! :)
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Reviewed in the United States on August 25, 2025 by Matthew c.
Color: 560-Controller
Worked for about 3 months, now completely dead....wont turn on. Probably used it 5 times.
Reviewed in the United States on July 28, 2025 by Graham M.
Color: 1050-Controller
Easy to install after the original’s screen went out. Works well, minus the lack of app connectivity.
Reviewed in the United States on September 23, 2025 by celtictmy
Color: 560-Controller
I’m very happy with this controller for the Masterbuilt 560 because the installation was quick and easy - all the screws and electrical adapters fit perfectly. The original had wifi, but it only worked on 2.4 GHZ, and I had a miserable time trying to separate my router frequencies to accommodate the Masterbuilt. And it’s really not a big deal that the new controller doesn’t have wifi since I use a Bluetooth temperature probe anyway.
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Reviewed in the United States on July 28, 2025 by gr8g8r
Color: MB-3*Switch
Definitely useful for the temp control and easy to replace when my old ones got burnt out
Reviewed in the United States on November 14, 2025 by Johnathan Dopwell
Color: 560-Controller
This controller is adequate to replace a broken OEM unit, but it is not of the same quality. It does work well however, and I been using it for the better part of 2 years.
Reviewed in the United States on January 8, 2025 by Dev Tavares
Color: 800 Controller
Easy replacement for my gravity 800 after it quit working. Seems to hold temperature better than the original that came. Took less than 5 minutes to install
Reviewed in the United States on June 24, 2024 by Eric Russell Eric Russell