Sharp SDW6506JS 24-inch Stainless Steel vs WD21X31906 Dishwasher Electronic Control Board
Updated July 2026 — Sharp SDW6506JS 24-inch Stainless Steel wins on price and noise level, WD21X31906 Dishwasher Electronic Control Board wins on sales rank.
The Sharp SDW6506JS offers superior features and performance compared to the WD21X31906 control board, making it the better choice for those in need of a dishwasher.
Why Sharp SDW6506JS 24-inch Stainless Steel is better
Complete unit
Sharp is a fully functional dishwasher.
Advanced features
Includes multiple washing cycles and a third rack.
User-friendly
Front touch controls and child lock enhance usability.
Why WD21X31906 Dishwasher Electronic Control Board is better
Lower price
WD21X31906 is significantly cheaper.
OEM part
Genuine replacement part for dishwashers.
Specific function
Designed for electronic control replacement.
Overall score
Specifications
| Spec | Sharp SDW6506JS 24-inch Stainless Steel | WD21X31906 Dishwasher Electronic Control Board |
|---|---|---|
| Brand | Sharp | Allstar Appliance Parts |
| Model | SDW6506JS | WD21X31906 |
| Type | Dishwasher | Control Board |
| Material | Stainless Steel | N/A |
| Control | Touch | Manual |
Dimension comparison
Overview of Products
In this comparison, we examine the Sharp SDW6506JS 24-inch Stainless Steel Dishwasher and the WD21X31906 Dishwasher Electronic Control Board. The Sharp dishwasher is priced at $499.00, while the control board is significantly cheaper at $183.99, making it about 63% less expensive. Each product serves a different purpose, with the former being a complete dishwasher unit and the latter a crucial replacement part for dishwashers.
Design and Build Quality
The design of the Sharp SDW6506JS is sleek and modern, featuring a stainless steel finish that not only enhances the kitchen's aesthetic but also ensures durability. It operates at a quiet noise level of just 49 dB, making it ideal for open-concept living spaces. On the other hand, the WD21X31906 control board is a functional component that lacks a visual design aspect but is essential for the operation of compatible dishwashers. As a genuine OEM part, it is built to meet specific manufacturer standards, ensuring reliability.
Features and Functionality
The Sharp dishwasher comes packed with features that enhance its functionality. It has three racks, including a specialized third rack for silverware, and accommodates up to 12 place settings. The adjustable upper rack is designed to fit taller items, while the half load option conserves water and energy. In contrast, the WD21X31906 control board is designed to replace older or malfunctioning electronic components in dishwashers. Its functionality is limited to controlling the operations of the dishwasher, thereby lacking the diverse capabilities of the Sharp unit.
Cleaning Performance
When it comes to cleaning performance, the Sharp SDW6506JS stands out due to its advanced hybrid tub design and multiple washing sprayers. These features work together to ensure thorough cleaning of dishes, pots, and utensils. The dishwasher offers five washing cycles and options tailored for different types of loads, ensuring versatility in cleaning. The WD21X31906, being a control board, does not directly contribute to cleaning performance but is essential for the coordination of washing cycles in compatible dishwashers.
Ease of Use
The Sharp dishwasher is designed with user convenience in mind. It features front-mounted touch controls, making it easy to operate, and includes a child lock for added safety. The heated dry option ensures dishes come out completely dry, ready for immediate use. In comparison, the WD21X31906 control board requires installation and may not be user-friendly for those unfamiliar with appliance repairs. It is critical to ensure compatibility before installation, as incorrect installation can lead to operational issues.
Price Comparison
The Sharp SDW6506JS is priced at $499.00, while the WD21X31906 is available for $183.99. This makes the control board about 63% cheaper than the dishwasher. While the lower price of the control board may appeal to budget-conscious consumers looking for a replacement part, the value offered by the Sharp dishwasher in terms of features, cleaning performance, and ease of use makes it a worthwhile investment for anyone in need of a new appliance.
Customer Satisfaction
The Sharp SDW6506JS has a solid sales rank of 1524, indicating that it is well-regarded among consumers. Its quiet operation and effective cleaning capabilities contribute to customer satisfaction. The WD21X31906 has a slightly lower sales rank of 4067, which may suggest a more niche market appeal. While both products have their strengths, customer reviews often highlight the importance of the dishwasher's multifunctionality compared to the singular purpose of the control board.
Which should you buy?
Choosing between the Sharp SDW6506JS and the WD21X31906 largely depends on your needs. If you require a complete dishwasher that offers modern features, excellent cleaning performance, and a user-friendly design, the Sharp dishwasher is the clear choice. However, if you need a replacement part for an existing appliance, the WD21X31906 is a reliable option at a significantly lower price. Ultimately, for those seeking a new appliance, the Sharp SDW6506JS represents a comprehensive solution, while the WD21X31906 serves a specific need in appliance maintenance.