Dishwasher Leaking or Not Draining? Whirlpool KitchenAid Sump with Seal W11443104 – Fix Leaks & Drainage Fast

If your KitchenAid, Whirlpool, or Maytag dishwasher is leaking from the bottom, pooling water, or failing to drain completely, a failed sump assembly with seal is the most common root cause. In most KitchenAid, Whirlpool, and Maytag dishwashers, the sump with seal forms the sealed base of the wash system — collecting water, housing the pump inlet, and maintaining a watertight barrier between the tub and the motor assembly. When the sump cracks or the seal deteriorates, water escapes under the dishwasher, drainage becomes incomplete, and standing water accumulates in the tub after every cycle — leading to odours, mould growth, and potential floor damage if left unaddressed. ⚡ Common failure point in KitchenAid, Whirlpool, and Maytag dishwashers built on the shared platform. Part W11443104 is the genuine OEM replacement that restores a fully sealed sump assembly and returns your dishwasher to leak-free, complete-drain operation.

❓ Is This the Right Part?

This is the correct fix if ALL of the following are true:

• ✔ Dishwasher powers on and runs through cycles normally
• ✔ Water supply and inlet valve are confirmed functional
• ✔ Drain hose and air gap are clear of obstructions
• ✔ ONLY problem is water leaking from the base or standing water remaining after the drain cycle

Not sure? Send us your model number — we'll confirm before you order.

🔧 Common Symptoms

• Water pooling on the floor under or in front of the dishwasher after cycles
• Standing water remaining in the tub bottom after the drain cycle completes
• Musty or sour odour from the dishwasher tub between uses
• Visible cracking, warping, or deteriorated seal around the sump base

✔ If these symptoms match, this is the most likely failed component causing the leak or drainage failure.

✔ In most cases, replacing this sump with seal eliminates leaking and restores complete drainage immediately.

📦 Part Details

• Part Number: W11443104
• Type: Dishwasher Sump with Seal — Genuine OEM
• Replaces: W11034556, W11446344, W10879262, W11414076, W11412300, WPW10671941
• Brands: KitchenAid, Whirlpool, Maytag

⚙️ Installation

Skill Level: MODERATE — 45–60 minutes. Disconnect power and water supply before servicing. Remove the lower dish rack and spray arm, then unscrew the sump cover from the tub floor. Disconnect the pump inlet hose and wiring harness from the sump assembly, remove the old sump and seal, and install the new assembly in reverse order. Ensure the seal seats fully around the tub opening before securing. Restore power and water, then run a short cycle to confirm leak-free operation.

✓ Compatible Models

Confirmed compatible with KDFM404KBS0, KDFM404KPS0, KDPM604KBS0, KDPM604KPS0, KDPM704KPS0, KDPM804KBS0, KDPM804KPS0, KDTM404KBS0, KDTM404KPS0, KDTM604KBS0, KDTM604KPS0, KDTM704KPS0, KDTM804KBS0, KDTM804KPS0, MDB4949SKB0, MDB4949SKW0, MDB4949SKZ0, MDB7959SKZ0, MDB7959SKZ1, MDB8959SKB0, MDB8959SKB1, MDB8959SKK0, MDB8959SKW0, MDB8959SKW1, MDB8959SKZ0, MDB8959SKZ1, MDB9959SKZ0, MDB9959SKZ1, MDB9979SKZ0, MDB9979SKZ1 plus additional KitchenAid, Whirlpool, and Maytag dishwasher models. Contact us to verify your model number before ordering.

💡 Pro Tip

🔁 Old Part Numbers & Cross References

This part supersedes and replaces: W11034556, W11446344, W10879262, W11414076, W11412300, WPW10671941. If your service manual, parts diagram, or previous order shows any of these numbers, W11443104 is the current OEM replacement.

📋 Model Number Reference

KDFM404KBS0 | KDFM404KPS0 | KDPM604KBS0 | KDPM604KPS0 | KDPM704KPS0 | KDPM804KBS0 | KDPM804KPS0 | KDTM404KBS0 | KDTM404KPS0 | KDTM604KBS0 | KDTM604KPS0 | KDTM704KPS0 | KDTM804KBS0 | KDTM804KPS0 | MDB4949SKB0 | MDB4949SKW0 | MDB4949SKZ0 | MDB7959SKZ0 | MDB7959SKZ1 | MDB8959SKB0 | MDB8959SKB1 | MDB8959SKK0 | MDB8959SKW0 | MDB8959SKW1 | MDB8959SKZ0 | MDB8959SKZ1 | MDB9959SKZ0 | MDB9959SKZ1 | MDB9979SKZ0 | MDB9979SKZ1

✓ Model-Specific Repair Pages