The KitchenAid KDTM604K and KDTM404K are both high-performing dishwashers, but they primarily differ in capacity and price. The KDTM604K is the premium model with a larger 16-place-setting capacity designed for bigger households, while the KDTM404K offers a slightly smaller 14 to 15-place-setting capacity at a more accessible price point, making it a better value for medium-sized families.
Here’s everything you need to know to choose the right KitchenAid dishwasher for your kitchen.
KitchenAid KDTM604K Dishwasher
The KitchenAid KDTM604K is designed as a premium solution for homes that generate a lot of dishes. It combines a substantial capacity with advanced cleaning features and a whisper-quiet operation, making it a top choice for large families, active home cooks, and those who frequently entertain guests.
- What it is: A premium 24-inch built-in dishwasher with a large interior capacity and multiple advanced cleaning cycles.
- Key features: Holds up to 16 place settings, features a FreeFlex™ Third Rack for flexible loading, operates at a quiet 44 dBA, includes specialized cycles like Sanitize and an extended ProDry™ option for superior drying.
- Price: Typically ranges from $1,200 to $1,400.
- Dimensions: Standard 24" width popular for built-in dishwasher installation.
- Materials/Construction: Features a durable stainless steel tub that resists streaks, stains, and odors while retaining heat to improve drying performance.
- Style: Sleek and modern design with a PrintShield™ Finish that resists smudges and fingerprints, integrating seamlessly with contemporary kitchen decor.
- Pros: Excellent capacity for large loads. FreeFlex™ Third Rack provides unmatched loading flexibility. Very quiet operation is ideal for open-concept kitchens. Advanced ProDry™ system ensures dishes come out completely dry.
- Cons: Higher price point. Extra capacity may be unnecessary for smaller households. Might have more features than the average user needs.
The KDTM604K is the perfect fit for anyone who needs maximum dishwasher space and features and is willing to invest in a top-of-the-line appliance.
Shop this product: kitchenaid.com/major-appliances/dishwashers/KDTM604KPS.html
KitchenAid KDTM404K Dishwasher
The KitchenAid KDTM404K offers much of the brand's signature performance and build quality but in a slightly more compact and budget-friendly package. It shares key features with the 604K, like the third rack and quiet operation, making it an exceptional value for medium-sized households that still want a premium dishwasher experience.
- What it is: A high-performance 24-inch built-in dishwasher that balances advanced features with strong value.
- Key features: Accommodates 14-15 place settings, includes a third-level utensil rack, operates at a quiet 44 dBA, features soil sensors to optimize wash cycles, and is ENERGY STAR® certified.
- Price: Generally priced between $900 and $1,200.
- Dimensions: Standard 24" measurement fits most cutout appliance spaces perfectly.
- Materials/Construction: Built with the same durable stainless steel tub as the 604K, ensuring longevity and excellent drying performance.
- Style: Modern exterior with clean lines and a PrintShield™ Finish, designed to match other KitchenAid appliances.
- Pros: Excellent performance and premium features at a lower price point. Still includes a third rack and quiet operation. ENERGY STAR® certified for efficiency. Great value proposition for the cost.
- Cons: Slightly smaller capacity than the KDTM604K. Lacks some of the most advanced drying features of the higher-end model.
The KDTM404K is ideal for those who want quiet operation and high-end features like a third rack without needing the absolute maximum capacity of the KDTM604K.
Shop this product: kitchenaid.com/major-appliances/dishwashers/KDTM404KPS.html
KitchenAid KDTM604K vs. KitchenAid KDTM404K Comparison
Capacity & Loading Flexibility
The most significant difference between the two models is capacity. The KDTM604K boasts a generous 16-place-setting capacity, which is perfect for washing large pots, pans, and serving platters after a big dinner. Its FreeFlex™ Third Rack is designed to fit glasses, mugs, and bowls in addition to flatware.
Comparatively, the KDTM404K holds 14-15 place settings, which is still plenty for a typical medium-sized household. Its third-level utensil rack is focused more on flatware and small utensils. While slightly less versatile than the 604K's third rack, it is still a huge help for organization and cleaning. Both models feature adjustable middle racks and fold-down tines for added flexibility.
Construction & Durability
Both dishwashers are built as part of the high-quality KitchenAid brand and feature identical construction standards. They both include a stainless steel interior tub, which is superior to plastic tubs in durability, stain resistance, and odor prevention. Stainless steel also aids in the drying process by retaining heat, resulting in drier dishes at the end of a cycle. Both models feel sturdy and are designed for long-term, reliable use.
Price & Value
The KDTM604K comes with a premium price tag, starting around $1,200, which reflects its larger size and more advanced feature set, such as the ProDry™ system. This model is an investment in convenience for those who need its high capacity.
The KDTM404K is positioned as the high-value alternative, with prices generally starting around $900. It offers access to sought-after features - a third rack, stainless steel tub, and quiet 44 dBA operation - for several hundred dollars less. For most homeowners, the KDTM404K delivers the best balance of performance and price.
Performance & Features
Both models share the same ultra-quiet 44 dBA noise rating, making them nearly silent during operation. They're excellent choices for kitchens that open into living areas. Their cleaning performance is similarly impressive, thanks to built-in soil sensors that adjust water and energy use for optimal results. The main performance distinction is the drying system. The KDTM604K features KitchenAid's fan-enabled ProDry™ System, which provides superior drying, especially for plastics. The KDTM404K has an effective drying cycle but lacks this advanced fan feature.
Which One Should You Choose?
Both of these dishwashers are excellent choices, but they are tailored to slightly different homes and budgets.
Choose the KDTM604K if:
- You have a big family or frequently host dinner parties.
- Maximum capacity is your primary concern to reduce the number of loads you run.
- You want the best possible drying performance, especially for Tupperware and plastics.
- Your budget allows for a higher-end, feature-rich appliance.
Choose the KDTM404K if:
- You run a small to medium-sized household.
- You want premium features like a third rack and quiet operation without the premium price.
- Excellent value is more important than having the absolute largest capacity.
- A 14-place-setting capacity is sufficient for your daily needs.
Frequently Asked Questions
What's the main difference between the KDTM604K and KDTM404K?
The primary differences are capacity and price. The KDTM604K has a larger capacity (16 place settings), and costs more, while the KDTM404K holds slightly less (14-15 place settings) and is more budget-friendly. The 604K also features a more advanced drying system.
Are both models quiet?
Yes, both dishwashers operate at an incredibly quiet 44 dBA. This rating is considered virtually silent, so you won't hear them running even if your kitchen is adjacent to your main living space.
Do they both have a third rack?
Yes, both models come equipped with a third rack for utensils and small items. The KDTM604K's "FreeFlex" rack is slightly more versatile for loading things like small bowls and cups as well.
Which model is more energy efficient?
Both models are ENERGY STAR® certified, meaning they meet strict standards for energy and water conservation. Their actual usage will depend on the cycles selected, but both are designed to be highly efficient.
Is the stainless steel tub worth it?
Absolutely. A stainless steel tub is more durable, resists stains and odors better than plastic, and improves drying performance by retaining heat. It is a key feature that contributes to the overall quality and longevity of both of these models.
Are the dimensions different?
No, a dishwasher from either model series comes in standard 24" widths that fit perfectly in most existing appliance cutout spaces in kitchens.
Do these models require special installation?
No, both dishwashers are designed to fit into a standard 24-inch under-counter opening. Installation is straightforward for any professional installer or experienced DIYer.
Is the KDTM604K worth the extra cost?
An upgrade is worth it if you will regularly use its extra capacity. For large families, the ability to fit a few more place settings in each load can save time and energy. If the 14-place-setting capacity of the KDTM404K is enough for you, then it offers better overall value.
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