15.5 in Microwave Plate Replacement - Flat Borosilicate Glass

In this review of the 15.5 in microwave plate replacement, the bottom line is simple: this flat, borosilicate glass turntable is for anyone who needs a direct, durable replacement for a 15 1/2 in flat-bottom microwave tray. It is best suited to owners who can confirm their roller assembly radius and rotation diameter match the plate's measurements, because the plate is explicitly flat and will not fit ovens that require a raised center. The review focuses on fit, material quality and compatibility to help shoppers decide quickly.

Key Features

• Flat-bottom design: The plate has a flat bottom that fits microwave ovens using a flat roller assembly rather than a raised hub, preventing compatibility surprises when the wrong shape is chosen.
• Precise fit guidance: The plate lists the roller assembly radius of 4 3/4 in and a required rotation diameter between 8 3/8 in and 9 1/2 in, which helps shoppers confirm fit before buying.
• Broad brand compatibility: The part is compatible with many GE, Kenmore, Samsung and Maytag models and specific part numbers like WB49X690 and DE74-20019A, so it often replaces OEM glass without needing model-specific ordering.
• Tempered borosilicate glass: Made from high-quality, heat-resistant borosilicate glass, the plate is dishwasher safe and lead-free for everyday use and easy cleaning.
• Easy replacement option: The plate restores microwave function at low cost and avoids waiting for manufacturer parts, making it a practical repair choice.

Who It's For

This plate is ideal for homeowners or renters whose microwave originally used a flat-bottom 15.5 in turntable and who can verify the roller assembly measurements. It appeals to people who want a quick, low-cost replacement that is dishwasher safe and heat-resistant.

It is not for users whose microwave requires a plate with a raised center or a nonstandard coupling; those shoppers should look for plates explicitly described as raised-bottom or check their model number with a pro service before ordering.

Pros & Cons

Pros

• Durable borosilicate glass construction that is heat-resistant and dishwasher safe.
• Clear measurement guidance (roller radius and rotation diameter) that helps ensure a correct fit.
• Compatible with many GE, Kenmore and Samsung models and specific OEM part numbers listed in the description.

Cons

• Flat-bottom design means it cannot replace plates that require a raised hub, so compatibility must be checked carefully.
• Some customers report mixed glass quality on arrival, including rare instances of breakage in transit.

Specifications

Diameter	15.5 in
Bottom type	Flat-bottom glass
Glass material	Borosilicate, tempered
Roller assembly radius (fits)	4 3/4 in
Recommended rotation diameter	8 3/8 in to 9 1/2 in
Compatible part numbers	WB49X690, WB49X10031, DE74-20019A
Care	Dishwasher safe, heat-resistant

Our Verdict

The 15.5 in microwave plate replacement is a practical, cost-effective solution for owners of compatible microwaves who need a flat-bottom glass tray. With clear measurement requirements and borosilicate construction it offers good value for most repairs, though buyers should confirm their roller assembly and be aware of occasional transit breakage reports.

Frequently Asked Questions

Will this plate fit my microwave?
Check that your microwave uses a flat-bottom plate, that the roller assembly radius is about 4 3/4 in and the rotation diameter falls between 8 3/8 in and 9 1/2 in.

Is the glass dishwasher safe?
Yes, the plate is made from tempered borosilicate glass and is described as dishwasher safe and heat-resistant.

Can this replace a raised-center plate?
No, this is a flat-bottom plate and will not fit models that rely on a raised hub or raised center design.