Kenmore Microwave 721.63653300 (72163653300, 721 63653300) Parts

This turntable shaft (MH-8) connects the microwave's turntable motor to the glass tray hub so the tray spins for even heating. Replace it when the tray won't rotate, slips intermittently, or makes grinding/clicking noises.

• Couples the turntable motor to the tray hub to drive rotation
• Helps ensure even cooking and defrosting by keeping the tray moving
• Typical symptoms: tray not turning, intermittent/jerky rotation, grinding or clicking from the cavity floor
• Damage indicators: cracks, melted/rounded drive surfaces, or excessive wobble

• Disconnect power to the microwave at the plug or breaker before servicing
• Remove the glass tray and roller ring to access the shaft
• Lift the old shaft straight up; if stuck, access the turntable motor from below to push it out
• Align and press the new shaft fully onto the motor spindle; reassemble and test rotation

This service manual provides official repair and diagnostic information to help technicians identify issues and complete accurate, safe repairs. It clarifies procedures, wiring, and component details so you can diagnose problems faster. What it does:

• Lists troubleshooting steps and diagnostic procedures to isolate faults
• Shows wiring diagrams and electrical schematics for correct component checks
• Provides parts breakdowns and component locations to guide replacements
• Includes service-mode instructions and common error-code guidance

• For technician use; read fully before attempting repairs
• Disconnect power and follow lockout/tagout procedures before working on the appliance
• Use proper tools and personal protective equipment when testing or replacing parts
• Follow OEM procedures and local codes; replace only with correct parts

The Door Latch Hook is an OEM replacement part for LG microwaves. Located internally on the door frame, this metal hook secures firmly into the microwave's door latch bracket when closed. As a common wear point, the hook can experience minor warping over many years of use.

Causes of a bad door latch hook include normal wear and tear, loss of tension, or deformation from frequent door opening and closing cycles long-term.

Symptoms of a bad latch hook include:

• Door that does not close fully or completely latch in place  
• Gaps forming in the door seal when shut
• Inability to achieve a tight, solid seal around the perimeter 
• Latch hook failing to grasp the bracket securely

This OEM LG part is also compatible with Sears/Kenmore microwaves. 

The holder is an OEM part for LG microwaves. It provides support and stability to the microwave's shelf or rack, allowing you to safely place and heat your food. It ensures that the shelf remains securely in place during operation, preventing any accidents or damage.

A bad shelf holder can occur due to wear and tear over time, accidental mishandling, or damage from excessive weight or impact. If the support becomes loose, cracked, or broken, it can compromise the stability of the microwave shelf, making it unsafe to use.

Symptoms of a bad holder include:

• Unstable or wobbly microwave shelf.
• Inability to properly secure the shelf in place.
• Noticeable cracks or damage to the support.
• Difficulty in placing or removing items from the shelf.

This OEM LG part can also be used on Kenmore/Sears appliances. 

Color: metallic. Measures about 15 inches wide by 8 inches deep.