WD21X31906 Dishwasher Electronic Control Board vs ZLINE 24 in. Top Control Dishwasher in Custom
Updated July 2026 — WD21X31906 Dishwasher Electronic Control Board wins on sales rank, ZLINE 24 in. Top Control Dishwasher in Custom wins on price and noise level.
The WD21X31906 is a cost-effective replacement part, while the ZLINE dishwasher offers advanced features and luxury design.
Why WD21X31906 Dishwasher Electronic Control Board is better
Price
WD21X31906 is significantly cheaper at $183.99.
Ease of Installation
WD21X31906 can be installed by DIY enthusiasts.
Specific Function
WD21X31906 serves a specific need for appliance repair.
Why ZLINE 24 in. Top Control Dishwasher in Custom is better
Features
ZLINE offers 6 wash cycles and smart wash technology.
Design
ZLINE has a modern, customizable panel-ready design.
Performance
ZLINE operates at a low noise level of 52 dBa.
Overall score
Specifications
| Spec | WD21X31906 Dishwasher Electronic Control Board | ZLINE 24 in. Top Control Dishwasher in Custom |
|---|---|---|
| Brand | Allstar Appliance Parts | Z Line Kitchen and Bath |
| Type | Control Board | Dishwasher |
| Material | N/A | Stainless Steel |
| Control Type | N/A | Top Control |
| Energy Efficiency | N/A | Smart Wash |
Dimension comparison
Overview of the Products
The WD21X31906 Dishwasher Electronic Control Board is priced at $183.99, making it a significantly more economical choice compared to the ZLINE 24 in. Top Control Dishwasher, which retails for $714.97. While the control board is designed to replace specific parts in dishwashers, the ZLINE model offers a full dishwasher experience with numerous advanced features.
The WD21X31906 serves as a genuine OEM part aimed at those needing a replacement control board, while the ZLINE dishwasher is a luxury appliance designed to enhance kitchen aesthetics and functionality. With the ZLINE’s higher price point, it also boasts a strong bestseller rank of 3944, indicating its popularity among consumers.
Design and Aesthetics
The ZLINE 24 in. Top Control Dishwasher is designed with a modern, sleek look, featuring hidden controls that contribute to its contemporary aesthetic. This panel-ready design allows homeowners to customize their dishwashers to match their kitchen décor, adding a unique touch.
In contrast, the WD21X31906 is purely functional and lacks design elements as it is an internal component rather than a standalone unit. Its purpose is specific to appliance repair, focusing solely on restoring the dishwasher's functionality rather than enhancing kitchen design. The stark difference in design intentions highlights the ZLINE's commitment to both form and function.
Features and Functionality
The ZLINE dishwasher showcases a range of impressive features, including 6 wash cycles that cater to various cleaning needs, from heavily soiled pots to quick washes. It operates at a minimal noise level of 52 dBa, ensuring a quiet kitchen environment during use.
On the other hand, the WD21X31906 is limited to its role as an electronic control board, focusing on functionality rather than features that enhance user experience. It replaces specific part numbers, ensuring compatibility with various dishwashers, but does not offer the broad functionality found in the ZLINE model. Thus, if you are looking for advanced washing capabilities, the ZLINE is the clear winner.
Performance and Efficiency
Performance is a crucial aspect when selecting a dishwasher. The ZLINE model is engineered with smart wash technology that auto-senses the cycle and pressure needed, optimizing water usage to just 3.5 gallons per load. This efficiency not only conserves resources but also contributes to lower water bills.
The WD21X31906, while essential for operational restoration, does not provide any performance metrics or efficiency ratings, as it is not a complete dishwasher unit. Therefore, if performance and operational efficiency are paramount, the ZLINE's advanced features clearly set it apart from the control board.
Installation Requirements
A significant difference in installation requirements exists between the two products. The ZLINE dishwasher necessitates professional installation to ensure optimal plumbing and electrical performance, which can add to the overall cost and complexity of the purchase.
Conversely, the WD21X31906, being a control board, may be installed by knowledgeable DIY enthusiasts or technicians familiar with dishwasher repairs. This ease of installation can save time and money for those opting for a straightforward replacement rather than a full dishwasher installation. For those who prefer a hands-on approach, the control board may be a more accessible option.
Maintenance and Care
Maintaining a dishwasher can be a concern for many homeowners. The ZLINE dishwasher incorporates a triple-filter cleaning system, which helps separate soiled water and clean water for enhanced performance. This feature reduces the frequency of maintenance and ensures that the dishwasher operates efficiently over time.
In contrast, the WD21X31906 does not require maintenance in the traditional sense, as it is an internal component that functions once installed. However, if it malfunctions, it may necessitate a replacement, which could lead to additional costs and downtime. In terms of ease of care, the ZLINE offers a more user-friendly experience with its self-cleaning capabilities.
Price Comparison
The price difference between the two products is substantial. The WD21X31906 is priced at $183.99, while the ZLINE dishwasher costs $714.97, making the latter about 289% more expensive. This price gap reflects the comprehensive functionality and luxury features of the ZLINE compared to the singular purpose of the WD21X31906.
For consumers with a limited budget looking for a quick fix, the control board is a more economical choice. However, for those willing to invest in a high-quality dishwasher that enhances their kitchen experience, the ZLINE offers features that justify its higher price point.
Which should you buy?
In conclusion, your choice between the WD21X31906 Dishwasher Electronic Control Board and the ZLINE 24 in. Top Control Dishwasher ultimately depends on your specific needs. If you require a replacement part to restore functionality to an existing dishwasher, the WD21X31906 is a cost-effective solution. However, if you're in the market for a high-end dishwasher that combines stylish design with advanced features, the ZLINE is worth the investment. Each product serves distinct purposes, making it essential to align your selection with your requirements.

