GE GDT550PYRFS Top Control with Plastic Interior vs WD21X31906 Dishwasher Electronic Control Board
Updated July 2026 — GE GDT550PYRFS Top Control with Plastic Interior wins on height and depth, WD21X31906 Dishwasher Electronic Control Board wins on rank.
The GE GDT550PYRFS is a comprehensive dishwasher with advanced features, while the WD21X31906 is a cost-effective replacement part. The GE model is the clear winner for those needing a full appliance.
Why GE GDT550PYRFS Top Control with Plastic Interior is better
Full Appliance
The GE model is a complete dishwasher.
Advanced Features
Includes features like Dry Boost and AutoSense.
Brand Reputation
GE is a well-established brand in appliances.
Why WD21X31906 Dishwasher Electronic Control Board is better
Lower Price
The control board is significantly cheaper.
Specific Use
Essential for repairs of existing dishwashers.
OEM Part
Genuine replacement part for specific models.
Overall score
Specifications
| Spec | GE GDT550PYRFS Top Control with Plastic Interior | WD21X31906 Dishwasher Electronic Control Board |
|---|---|---|
| Price | $429.00 | $183.99 |
| Sales Rank | 1176 | 4067 |
| Energy Star | Yes | No |
| Wash Cycles | 4 | N/A |
| Control Type | Electronic | Electronic |
Dimension comparison
Overview of Products
In this comparison, we will look at the GE GDT550PYRFS Top Control with Plastic Interior Dishwasher with Sanitize Cycle and the WD21X31906 Dishwasher Electronic Control Board. The GE dishwasher retails for $429.00, while the Allstar control board is priced at $183.99. This makes the control board about 57% cheaper than the dishwasher, catering to different needs in kitchen appliance management.
The GE GDT550PYRFS is designed as a full dishwasher unit with multiple features aimed at efficient cleaning, while the WD21X31906 is a specific electronic control board meant for repair and replacement purposes. Understanding their distinct roles and pricing will help clarify which product might be more suitable for your kitchen needs.
Product Functionality
The GE GDT550PYRFS offers comprehensive functionality with its four wash cycles and the ability to accommodate up to 14 place settings. This versatility is ideal for families and individuals who frequently use dishwashers. In contrast, the WD21X31906 is a component part, specifically an electronic control board that manages the dishwasher’s operations.
While the dishwasher boasts features like Dry Boost and AutoSense Wash Cycle, enhancing its cleaning efficiency, the control board's role is more about repair and maintenance. This distinction makes the GE dishwasher suitable for those looking for a complete appliance, while the Allstar control board serves those needing a specific replacement part.
Performance and Efficiency
The GE GDT550PYRFS is equipped with a Soil Sensor and an Energy Star certification, indicating that it operates efficiently while effectively cleaning dishes. This model also includes a Sanitize Cycle and Steam + Sani feature, which are particularly useful for ensuring thorough cleaning, especially for items that may harbor bacteria.
On the other hand, the WD21X31906 does not have performance metrics like energy efficiency or cleaning capabilities, as it is not an appliance but rather a component essential for the dishwasher's operation. Therefore, if you're looking for performance in terms of cleaning dishes, the GE dishwasher is the clear choice, while the control board's performance is tied to its role in maintaining the dishwasher's functionality.
Design and Build Quality
The GE GDT550PYRFS features a sleek design with a fingerprint-resistant stainless steel finish, making it visually appealing and easy to maintain. It has dimensions of 33 3/8 H x 23 3/4 W x 24 D, allowing it to fit seamlessly into a standard kitchen layout.
In contrast, the WD21X31906, being an electronic control board, is designed for functionality rather than aesthetics. Its build is tailored to perform under the hood, and thus it lacks a consumer-facing design. Potential buyers should note that while the GE dishwasher enhances kitchen décor, the control board is an essential part for those needing repairs without any visual impact.
Installation and Maintenance
Installing the GE GDT550PYRFS is a significant undertaking, as it involves integrating a full-sized dishwasher into your kitchen. However, it is designed to be user-friendly, with features that facilitate maintenance, such as a hard food disposer and a delay start function.
On the other hand, the WD21X31906 requires a more specialized installation process, as it must be matched correctly to existing components in the dishwasher. The manufacturer warns that if the part does not match, it should not be installed, emphasizing the need for careful selection. This aspect could pose a challenge for DIY enthusiasts who may not have the technical expertise to ensure proper installation.
Price Comparison
The GE GDT550PYRFS is priced at $429.00, which reflects its status as a complete dishwasher with numerous features. In contrast, the WD21X31906 is priced at $183.99, making it significantly cheaper. The difference in price is about $245.01, which is a substantial amount considering the GE model offers a full appliance versus a single electronic component.
This pricing structure makes the control board an appealing choice for those looking to save on repair costs, while the dishwasher is a larger investment aimed at enhancing overall kitchen functionality.
Brand Reputation
GE is a well-established brand in the appliance industry, known for producing reliable and high-quality products. The GE GDT550PYRFS, with a sales rank of 1,176, reflects its popularity and consumer trust.
Conversely, the WD21X31906, manufactured by Allstar Appliance Parts, also has its own reputation but is primarily recognized within the context of appliance repair and parts replacement. With a sales rank of 4,067, it indicates a solid market presence, though it doesn't match the prominence of the GE dishwasher. Brand reputation may influence buyer decisions, particularly for those prioritizing reliability and service.
Which should you buy?
Deciding between the GE GDT550PYRFS and the WD21X31906 largely depends on your specific needs. If you are in the market for a full dishwasher that offers advanced features like a Sanitize Cycle and energy efficiency, the GE model is the clear winner at $429.00. Its performance and design cater to users looking for a reliable and aesthetically pleasing kitchen appliance.
However, if you are looking to replace an existing control board or need a specific part for maintenance, the WD21X31906 at $183.99 is a practical choice. It offers significant savings and is essential for those needing to repair their dishwasher without the cost of a new unit. Ultimately, each product serves a unique purpose, making your choice dependent on whether you need a new appliance or a replacement part.

