COMVIEE Replacement Fan & 3 Lid/Door Switches Kit for Masterbuilt Gravity Series 560/800/1050 — High‑Temp Digital Fan & Wiring Har

COMVIEE replacement kit supplies a high-temperature fan, three hopper lid/door safety switches and all wiring needed to restore reliable airflow and safety controls on Masterbuilt Gravity Series 560/800/1050 charcoal grills and smokers.

This complete OEM-fit repair kit is engineered to replace Masterbuilt part numbers 9904190040, 9904190041 and 9904190045, offering a straightforward swap for models MB20040220, MB20041020, MB20041220, MB20041320, MB20040221 and MB20042221. It combines a digitally controlled, heat-resistant fan with CE-certified safety switches and a full wiring harness so your smoker runs consistently and safely without hunting for individual components.

How does the replacement fan improve temperature control?

The included fan is made from high-temp ABS and is digitally controlled to deliver steady airflow into the charcoal hopper and cooking chamber. That steady airflow helps maintain combustion efficiency and reduces temperature swings so you get more predictable cook results.

• Digitally controlled motor for consistent RPM and airflow.
• High-temperature ABS housing resists heat and deformation.
• Screws and mounting points match OEM locations for secure installation.
• Designed to support continuous operation during long smokes.

What safety features do the lid and door switches provide?

This kit includes three CE-certified hopper lid/door safety switches that interrupt operation when a door or lid is open, preventing accidental run-on. They are rated AC 250V/2A and tested for high-temperature durability and wear resistance to uphold reliable shutdown behavior.

• Three switches replace OEM part 9904190041 for full coverage.
• High-temp tolerant construction for stall-free performance near heat sources.
• Mounting screws included for a tool-ready replacement.
• Pre-tested for stable electrical behavior under load.

What wiring and hardware come in the kit, and is installation plug-and-play?

The kit supplies the fan, mounting screws, three door switches with mounting screws, and four labeled wires (fan, cover, hopper cover, gray door) to recreate OEM routing and connections. While designed for direct fitment, basic hand tools and a short read of the grill’s wiring layout will make the swap straightforward for anyone comfortable with light electrical work.

• 9904190040 fan and four fan mounting screws included.
• 9904190041 three door switches plus six mounting screws.
• 9904190045 wiring set: fan wire, cover wire, hopper cover wire, gray door wire.
• Wires are pre-cut to practical lengths and labeled for easier hooking up.

Will this kit match my Masterbuilt model and what support is available?

This COMVIEE kit is manufactured to replace specified Masterbuilt OEM parts and lists direct compatibility with common Gravity Series 560/800/1050 model numbers. The product comes with a one-year warranty and customer support responsive within 24 hours for installation or fitment questions.

• Direct replacement for parts 9904190040, 9904190041, 9904190045.
• Compatible with MB20040220, MB20041020, MB20041220, MB20041320, MB20040221, MB20042221 models.
• One-year warranty and responsive after-sales assistance.
• Manufacturer support for installation or mismatch concerns.

Who is this for: This kit is aimed at Gravity Series owners who want an OEM-fit repair to restore proper airflow and safety interlocks—ideal for hobbyist barbecuers, backyard pitmasters, and anyone maintaining a Masterbuilt 560, 800 or 1050 smoker. If your grill shows erratic temperatures, the fan has failed, or a door/lid no longer cuts power, this kit consolidates the necessary components into a single, heat-rated replacement package to get your smoker back in service.