SHARP SDW6757ES Slide-In Dishwasher, Stainless vs WD21X31906 Dishwasher Electronic Control Board
Updated July 2026 — SHARP SDW6757ES Slide-In Dishwasher, Stainless wins on price and noise level, WD21X31906 Dishwasher Electronic Control Board wins on sales rank.
The SHARP SDW6757ES offers a complete dishwashing solution with advanced features, while the WD21X31906 is a reliable replacement part for specific dishwashers. Choose based on whether you need a new appliance or a repair part.
Why SHARP SDW6757ES Slide-In Dishwasher, Stainless is better
Complete Solution
Offers advanced features for dishwashing.
Design
Sleek stainless steel finish enhances kitchen aesthetics.
Performance
Includes soil sensors for optimized washing cycles.
Why WD21X31906 Dishwasher Electronic Control Board is better
Cost
Lower price for a replacement part.
Specific Use
Essential for repairing certain dishwashers.
OEM Quality
Genuine part ensures compatibility.
Overall score
Specifications
| Spec | SHARP SDW6757ES Slide-In Dishwasher, Stainless | WD21X31906 Dishwasher Electronic Control Board |
|---|---|---|
| Brand | Sharp | Allstar Appliance Parts |
| Type | Dishwasher | Control Board |
| Finish | Stainless Steel | N/A |
| LED Lighting | Yes | No |
| Soil Sensors | Yes | No |
| Half Load | Yes | No |
Dimension comparison
Overview of the SHARP SDW6757ES and WD21X31906
The SHARP SDW6757ES Slide-In Dishwasher offers a comprehensive dishwashing solution, while the WD21X31906 Dishwasher Electronic Control Board serves as a crucial replacement part for specific dishwashers. The SHARP model sells for $598.97, making it a premium appliance designed for efficiency and performance. In contrast, the WD21X31906 is priced at $183.99, targeting those who need a reliable replacement component rather than a complete appliance. This price difference highlights the distinct market segments these products cater to, with the dishwasher focusing on a complete user experience and the control board on maintenance.
Purpose and Functionality
The SHARP SDW6757ES is a fully functioning dishwasher designed to tackle various cleaning challenges, featuring advanced soil sensors that optimize washing cycles. This model includes six washing cycles and versatile options for dishes of all sizes, ensuring effective cleaning, including a dedicated Power Wash Zone for tough stains. Conversely, the WD21X31906 is an electronic control board intended to replace faulty components in certain dishwashers. It addresses the functionality of dishwashers rather than providing a complete washing solution, making it essential for users needing repairs rather than a new appliance.
Design and Aesthetics
In terms of design, the SHARP SDW6757ES boasts a sleek stainless steel finish that not only enhances its aesthetic appeal but also makes it easy to clean. The hidden control panel minimizes distractions and maintains a clean look in your kitchen. The premium white LED interior lighting adds a touch of elegance and functionality, allowing users to easily see the contents inside. On the other hand, the WD21X31906, being a control board, is utilitarian in design, primarily focused on functionality rather than aesthetics. Its effectiveness lies in its compatibility with various dishwashers, rather than visual appeal.
Features and Performance
The SHARP SDW6757ES is equipped with several features designed to enhance its performance. It includes soil sensors that automatically adapt washing cycles to the load, ensuring efficient cleaning. Its heated dry option is faster than conventional condensation drying, and the Half Load feature allows for energy-efficient cleaning of smaller loads. The dishwasher operates quietly at 45 dBA, making it suitable for open-concept living spaces. In contrast, the WD21X31906 offers no performance features but is essential for restoring the functionality of certain dishwashers. Users relying on this part must ensure compatibility with their specific models to avoid installation issues.
Price Comparison
The SHARP SDW6757ES is priced at $598.97, while the WD21X31906 costs $183.99. This means the SHARP model is about 226% more expensive than the control board. The price difference reflects the comprehensive features and utility of a complete dishwasher versus a single replacement part. For those looking to invest in a quality kitchen appliance, the SHARP SDW6757ES offers significant value through its advanced features, while the WD21X31906 provides a cost-effective solution for users needing repairs.
Sales Ranking
The SHARP SDW6757ES holds a sales rank of 2988, indicating its popularity among consumers in the dishwasher category. This ranking suggests that it is well-regarded and frequently purchased, likely due to its features and brand reputation. In comparison, the WD21X31906 ranks at 4067, which, while still respectable, indicates that it appeals to a more niche market focused on repairs rather than new purchases. The sales ranks of both products highlight their respective positions within the market, with the SHARP model benefiting from its comprehensive appeal as a functional household appliance.
User Experience
Users of the SHARP SDW6757ES often cite its efficiency and quiet operation as significant advantages, enhancing the overall dishwashing experience. The responsive wash cycles and Power Wash feature are particularly praised for their effectiveness against stubborn stains. Meanwhile, the WD21X31906, being a replacement part, garners user feedback focused on its compatibility and reliability once installed. However, users must ensure the part aligns with their dishwasher model to avoid installation issues, which can detract from overall satisfaction.
Which should you buy?
Deciding between the SHARP SDW6757ES and the WD21X31906 ultimately hinges on your needs. If you are looking for a complete dishwashing solution with advanced features and elegant design, the SHARP SDW6757ES is the clear choice at $598.97. However, if your goal is to replace a faulty electronic control board in your existing dishwasher, the WD21X31906 represents a cost-effective option at $183.99. Each product serves a distinct purpose, making the choice dependent on whether you require a new appliance or a replacement part.

