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9904200043 Controller Compatible with Masterbuilt Gravity Series 800 Digital Charcoal Grill + Smokers, Digital Control Panel (Non-Wifi) for Model: MB20040122, MB20040221 Replacement Part

  • Based on 406 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jun 30
Order within 12 hours and 52 minutes
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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


Brand Name: COMVIEE


Model Name: Masterbuilt Gravity Series 800 Digital Charcoal Grill + Smokers


Part Number: 9904200043


Model Number: 9904200043


Power Source: Charcoal


Fuel Type: Charcoal


Color: 800 Controller


Outer Material: Alloy Steel


Inner Material: stainless steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 30

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.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good replacement
Color: 800 Controller
Bought this for my master built gravity series and was an easy replacement. No bluetooth but that's alright
Reviewed in the United States on December 26, 2025 by Taylor

  • Don’t.
Color: 800 Controller
No. Just don’t do it. This is my second one. The first one stopped signaling to the fan to turn on, rendering the smoker unusable. Installed the replacement and it worked perfectly for about three hours. Got my ribs prepped for Super Bowl Sunday, got the smoker fired up and up to temp. I went back out to put the ribs on and the temp was 130 degrees. Again, the unit I replaced today and tested for three hours (working just fine this morning) is not signaling the fan to turn on, rendering my smoker useless. ... show more
Reviewed in the United States on February 9, 2025 by Jen S

  • Cannot connect wi-fi or blutooth
Color: 800 Controller
Wi-fi not connecting I understand, it's in the description but bluetooth will not completing with the app. I can control the temp manually and use external meat temps but bluetooth would've been useful.
Reviewed in the United States on October 11, 2024 by Uchinanchu

  • Quick delivery easy install
Color: 800 Controller
Easy to install
Reviewed in the United States on May 20, 2026 by EskiGirl907

  • Good Replacement Good Replacement
Color: 800 Controller
I wish I read the reviews and realized it wouldn't have Bluetooth for the app but otherwise it works better than the original that was worthless from the beginning.
Reviewed in the United States on July 30, 2024 Reviewed in the United States on July 30, 2024 by Matt Leuschke

  • Works great Works great
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 Reviewed in the United States on June 24, 2024 by Eric Russell

  • Bluetooth Not Working
Color: 800 Controller
Could not get Bluetooth to work with Masterbuilt Classic or Masterbuilt app. It only functions from the external interface.
Reviewed in the United States on July 4, 2025 by Beau

  • Worked only once
Color: 800 Controller
I saw a review about it only working once. Thought the chances of it happening to me would be highly unlikely but I was wrong. That was exactly what happened to me. Worked once just fine, did not work the second time.
Reviewed in the United States on June 22, 2025 by Luis

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