Comparison

Agitator vs Impeller Washer: How Each One Cleans (October 2026)

Updated on · By the Keen Wash team

Choose an agitator washer for a center post that moves clothes, or an impeller washer for a low-profile plate that creates motion in the basket. The difference affects basket space and how you load laundry, so match the design to the items you wash.

On this page (6 sections)
  1. Agitator vs impeller washer: how does each one clean?
  2. What are the pros and cons of agitator washers?
  3. What are the pros and cons of impeller washers?
  4. Does an agitator or impeller washer handle bulky loads better?
  5. Which washer is easier to use and maintain?
  6. Which washer should you choose?

Choose an agitator washer for a center post that moves clothes, or an impeller washer for a low-profile plate and a more open basket. The agitator vs impeller washer difference is mainly how each design moves laundry and how much room the center of the basket leaves for loading.

An agitator has a vertical post in the basket. An impeller sits low at the bottom, so you can load items without working around a tall post.

Neither style wins every load. Your usual laundry, bulky items, preferred loading pattern and the exact cycle options matter more than the mechanism's name.

Kenmore 4.4 Cu Ft Top Load Washer with AgitatorBest for a center-post wash

Kenmore 4.4 Cu Ft Top Load Washer with Agitator

8.9/10Our score

See it on Amazon

Kenmore 4.5 Cu Ft Top Load Washer with ImpellerBest for more open basket space

Kenmore 4.5 Cu Ft Top Load Washer with Impeller

8.8/10Our score

See it on Amazon

Agitator vs impeller washer: how does each one clean?

An agitator moves clothes around a center post; an impeller moves them from a low-profile plate at the basket floor. These are two different ways to create motion in a top-load washer.

The post in an agitator washer takes up some space in the middle. Clothes move around it as the washer runs, and some models combine that action with other wash features.

An impeller has no tall center post. Its plate moves laundry through the wash basket while leaving more of the center open for loading.

The Kenmore examples in this comparison add other actions to either mechanism. Both the 4.4 cu ft agitator and 4.5 cu ft impeller models describe spraying action and wash basket movement as part of their Triple Action design.

What is the difference between a washer agitator and impeller?

The main difference is the shape and location of the part that creates motion. An agitator is a post; an impeller is a low-profile plate.

That distinction affects how you place clothes in the basket. A post can help you picture the wash motion, while an open center can make it simpler to fit bulky or awkward items around the middle.

Don't judge cleaning from the shape alone. Load size, cycle selection, fabric type and detergent all influence how a wash goes.

What are the pros and cons of agitator washers?

An agitator washer suits you if you want a visible center post and a familiar top-load layout. Its main tradeoff is that the post occupies basket space.

The post provides a clear reference point when loading: spread clothes around it rather than piling everything on one side. Many models also offer cycles for different fabrics and soil levels, so check the cycle list instead of choosing by mechanism alone.

A center post can make loading a large blanket less convenient. The item may need to wrap around the post, and you still need enough capacity and room for it to move during the wash.

When does an agitator make sense?

Choose an agitator if most of your laundry is everyday clothing, towels and smaller household items. The center post won't take up as much practical room when the load consists of pieces that fit easily around it.

The Kenmore 4.4 cu ft agitator washer has 10 cycles, including Heavy Duty, Towels, Delicates and Express. Its Triple Action system combines agitator motion with basket movement and spraying action.

For a smaller-capacity option, the Kenmore 4.1 cu ft agitator model also has 10 cycles, including Bulky and Delicates. Its listed dimensions are 25.5 in wide, 27 in deep and 42.1 in high, so measure your space and delivery route before deciding.

What should you consider before choosing one?

Think about the largest item you wash at home, not only your weekly clothing load. If bulky bedding is common, compare basket space and capacity, then check the model's instructions for that item.

You can also compare cycle choices. A Delicates cycle may matter for your wardrobe, while Heavy Duty or Bulky options may be more relevant for household loads.

Our guide to washer size can help you estimate capacity from household needs. For a comforter-specific check, see what size washer fits a king comforter.

What are the pros and cons of impeller washers?

An impeller washer suits you if you want a more open basket without a tall center post. Its low-profile design can simplify loading larger pieces, but the open space doesn't guarantee that every bulky item will fit.

You still need to follow the washer's load guidance. An oversized or uneven load can restrict movement, regardless of the wash mechanism.

The Kenmore 4.5 cu ft impeller model has a Triple Action Impeller, plus spraying and wash basket actions. It includes 10 cycles such as Heavy Duty, Towels, Delicates and Express.

When does an impeller make sense?

Choose an impeller when you want to load bulky items without arranging them around a center post. It can also suit you if you prefer a less obstructed basket when adding or removing laundry.

The Kenmore impeller example has 4.5 cu ft capacity, slightly more than the 4.4 cu ft agitator example. That difference is modest, so compare actual dimensions and how the basket shape works for your items.

If you're comparing top-load layouts with a different washer format, our top-load vs front-load washer guide covers access, space and loading style. For energy and cycle terminology, read high-efficiency washer vs regular washer.

What should you watch for with an impeller?

A more open center isn't a reason to overload the basket. Leave room for clothes to move, and follow the cycle guidance for bulky or delicate items.

Also check how the model's cycles fit your routine. The Kenmore impeller model includes Express, Delicates, Towels and Heavy Duty cycles, but another model may offer a different set.

Does an agitator or impeller washer handle bulky loads better?

An impeller can leave more usable space around the basket center, while an agitator may require you to arrange bulky items around its post. Fit still depends on the specific washer and the item's size and care instructions.

Compare capacity, basket shape and the manufacturer's guidance for comforters, blankets and other large items. Don't rely on a generic rule that all items of a certain type fit a particular capacity.

The 4.5 cu ft Kenmore impeller has slightly more capacity than the 4.4 cu ft agitator. The 4.1 cu ft agitator is smaller than both, so it may be less suitable if large bedding is a frequent load.

Measure any item you plan to wash and consider how it will sit inside the basket. For a broader look at available layouts, see our full-size washer guide.

Which washer is easier to use and maintain?

Both styles use a top-opening basket, so the biggest day-to-day difference is how you place laundry around the wash mechanism. Choose the layout that feels simpler for the loads you do most often.

With an agitator, distribute items around the post and avoid wrapping clothes tightly around it. With an impeller, spread items around the basket floor and keep the load balanced.

The Kenmore models listed here each include 10 cycles and four temperature options where specified for the 4.4 and 4.5 cu ft examples. Their soft-close lids and LED displays show cycle status and remaining time.

Maintenance depends on the model's care instructions, not the presence of a post or plate. Keep the basket clean, use the recommended detergent amount and follow the manual for washer-cleaning cycles.

Which washer should you choose?

Pick an agitator if you want a center post and mostly wash everyday loads; pick an impeller if an open basket better suits bulky items. Compare capacity and cycles for the exact model before you decide.

The Kenmore 4.4 cu ft agitator gives you the center-post design with 10 cycles and a Triple Action wash system. The 4.5 cu ft impeller offers a low-profile plate and slightly more capacity, while the 4.1 cu ft agitator is a smaller option.

Start with your largest regular load, then check dimensions, cycle options and installation space. If you're still deciding among washer types, use the full-size washer guide to compare models and layouts.

Frequently asked questions

What is the main difference between an agitator and an impeller washer?

An agitator washer has a post in the center of the basket that moves clothes in a circular pattern. An impeller washer uses a lower-profile plate at the basket floor, leaving more open space above it.

Both designs move laundry through water, but the shape changes how clothes fit and circulate.

Is an agitator or impeller better for bulky bedding?

An impeller's open basket can make it easier to place bulky items without working around a center post. Check the washer's capacity and instructions for the specific item, then load it loosely enough to move.

A larger capacity alone doesn't guarantee that a comforter will fit well.

Do agitator washers clean better than impeller washers?

Neither design is automatically better for every load. Agitators move clothes around a central post, while impellers create motion from the basket floor.

Soil level, load size, detergent and cycle choice also affect results, so compare the full cycle options and follow the care label.

Does an impeller washer use less water?

Water use depends on the exact washer and selected cycle, not just whether it has an impeller. Check the model's energy information and use the recommended load size.

Avoid assuming that a particular wash mechanism guarantees lower water use or a specific utility bill.

Can you wash delicate clothes in an agitator washer?

Yes, if the washer has a suitable delicate cycle and the garment's care label allows machine washing. Use the cycle and temperature recommended for the fabric, and avoid packing the basket tightly.

The Kenmore agitator examples here include a Delicates cycle.