Microwave Ducts and Vents

Fix Number

FIX12071388

Manufacturer Part Number

5304509646

Noticing a cracked or loose vent on your microwave? This black front grille is a simple replacement that helps keep air flowing properly and gives your appliance a clean, finished look. It’s easy to install and fits right into place—just check your model to make sure it’s the right fit. A quick fix that helps your microwave work and look like new again.

Fix Number

FIX12746294

Manufacturer Part Number

5304522808

Fix Number

FIX12709817

Manufacturer Part Number

WB02X32715

This is the replacement damper bracket for your microwave. It is made of plastic and is approximately 11 inches wide and 3 inches long. The damper bracket attaches to the outer cabinet and directs airflow through the vent duct. The main reason you would replace the damper bracket is if it is damaged and will not hold the damper in place properly. This part is sold individually and is a genuine OEM part sourced directly from the manufacturer.

Fix Number

FIX3524148

Manufacturer Part Number

4900W1A001B

This metal vent damper door closes off the exhaust duct when the fan is not running to stop outside air from entering the microwave unit, and opens when the fan turns on to allow air to vent away from the microwave. This vent damper door measures approximately 10 inches long x 3 inches wide and fits LG microwaves.

Fix Number

FIX3523851

Manufacturer Part Number

4810W1A151A

This bracket holds the metal or plastic flapper that closes off the exhaust duct when the fan is not running and opens when the fan turns on. If the exhaust fan on your microwave does not appear to be working, the problem may be with the damper assembly. If the damper does not open and close easily, check for any damage to the bracket, and replace if it is damaged or faulty. This genuine OEM exhaust damper measures approximately 12 inches long by 5 inches wide.

Fix Number

FIX11728088

Manufacturer Part Number

W10843943

This assembly includes the damper door and frame.

Fix Number

FIX1018887

Manufacturer Part Number

WB06X10686

This microwave vent damper assembly helps control airflow by directing exhaust out of the kitchen and preventing outside air, smoke, or odors from flowing back in when the fan is off. Made from durable metal, it can help reduce rattling noises and improve overall ventilation performance. Replacing a worn or damaged damper supports quieter operation and more efficient airflow.

Fix Number

FIX12071325

Manufacturer Part Number

5304509490

This microwave vent grille is designed for over-the-range microwaves to help manage airflow while protecting internal components from grease, dust, and kitchen debris. Positioned at the front of the unit, it supports proper ventilation to regulate internal temperatures and keep electronics operating safely, while also providing a clean, finished appearance to the appliance. Replacing a damaged or missing vent grille helps maintain proper airflow and restores the microwave’s exterior look.

Fix Number

FIX12071321

Manufacturer Part Number

5304509486

This is an OEM vent damper, which works with microwaves.

Fix Number

FIX11753522

Manufacturer Part Number

WPW10351279

This stainless steel bottom oven vent directs heat away from the oven cavity and helps maintain even cooking temperatures. It mounts at the lower front of the oven and replaces damaged or missing vents. Always shut off power and let the oven cool before installation.