Product Overview
This document provides essential information for the installation, operation, and maintenance of your Upstart Battery replacement microwave glass plate. This glass plate is designed as a compatible replacement for Sharp R318AV and Sharp 9KC3517203500 microwave glass turntable trays.

Figure 1: Top view of the replacement microwave glass plate. This image shows the circular glass plate from directly above, highlighting its clear material and the three support nubs on its underside.
- Function: An essential component that rotates inside the microwave oven to ensure food is heated or cooked evenly.
- Compatibility: Specifically designed to replace Sharp R318AV and 9KC3517203500 microwave glass turntable trays.
- Quality: Manufactured to provide a functional replacement for your original microwave glass plate.
Compatibility Information
This product is an Upstart Components brand replacement part. It is not an OEM (Original Equipment Manufacturer) product and is not affiliated with any OEM brands. All mentions of brand names or model descriptions, such as Sharp R318AV and 9KC3517203500, are made strictly to illustrate compatibility and assist users in identifying the correct replacement part for their appliance.

Figure 2: Angled view of the replacement microwave glass plate. This perspective highlights the edge thickness of the glass and the design of the three support nubs.
Installation Guide
Proper installation ensures the glass plate functions correctly and safely within your microwave oven.
- Safety First: Before attempting any installation or replacement, ensure your microwave oven is unplugged from the power outlet to prevent electrical hazards.
- Remove Old Plate (if applicable): Carefully remove the existing or broken glass plate from the microwave cavity.
- Clean Cavity: Wipe down the microwave cavity, especially the turntable support area, to remove any food debris or spills.
- Position Turntable Support: Ensure the turntable support ring (the plastic ring with wheels) is correctly seated in the center of the microwave cavity.
- Place New Plate: Carefully place the new replacement glass plate onto the turntable support ring. Ensure the nubs on the bottom of the glass plate align with the center coupler in the microwave. The plate should sit flat and securely on the support.
- Test Functionality: Plug the microwave back into the power outlet. Place a microwave-safe container with a small amount of water on the plate. Close the door and run the microwave for 30 seconds to confirm the plate rotates smoothly and without obstruction.
Operation
The microwave glass plate is designed to rotate during the cooking cycle. This rotation ensures that food placed on the plate receives even microwave energy distribution, leading to more uniformly heated or cooked results. Once installed correctly, the plate will automatically rotate when the microwave oven is in operation.
Care and Maintenance
To ensure the longevity and proper function of your replacement glass plate, follow these care instructions:
- Cleaning: The glass plate can be removed for cleaning. Wash with warm water and a mild dish soap. Rinse thoroughly and dry completely before placing it back into the microwave.
- Avoid Abrasives: Do not use abrasive cleaners, scouring pads, or sharp objects on the glass surface, as these can scratch or damage the plate.
- Handle with Care: Although made of durable glass, the plate can break if dropped or subjected to sudden impacts. Handle with care during removal, cleaning, and reinstallation.
- Temperature Changes: Avoid placing extremely hot items directly onto a cold plate, or vice-versa, as sudden temperature changes can cause stress to the glass.

Figure 3: Alternative top view of the replacement microwave glass plate. This image provides another perspective of the plate's design, focusing on the central coupling mechanism.
Troubleshooting
If you encounter issues with your replacement glass plate, consider the following common solutions:
- Plate Not Rotating:
- Ensure the glass plate is correctly seated on the turntable support ring and the central coupler.
- Check that the turntable support ring itself is properly positioned and its wheels are not obstructed.
- Verify that the microwave oven's motor is functioning (consult your microwave's user manual if other functions are also failing).
- Plate Wobbling or Uneven:
- Confirm the turntable support ring is clean and free of debris that might cause uneven seating.
- Ensure the glass plate is centered and properly aligned with the central coupler.
- Plate is Broken or Chipped:
- A broken or chipped glass plate should be replaced immediately to prevent further damage or injury. Do not operate the microwave with a damaged plate.
Product Specifications
| Attribute | Detail |
|---|---|
| Brand | Upstart Battery (Upstart Components) |
| Model Number | MP-203500-DL67 |
| Compatible With | Sharp R318AV, Sharp 9KC3517203500 |
| Diameter | 11 1/4 inches (285mm) |
| Item Weight | 2 pounds |
| Package Dimensions | 13.5 x 13.5 x 2.5 inches |
Warranty and Support
This product is an Upstart Components brand replacement part. Any warranties for this product are offered solely by Upstart Components. This product is not covered under any warranties offered by the original manufacturers (OEMs).
For support, warranty claims, or further inquiries regarding your replacement glass plate, please contact Upstart Battery directly through their official channels or the retailer from whom the product was purchased. You can visit the Upstart Battery Store on Amazon for more information.





