How to Replace 611332 Dishwasher Drain Pump on Bosch, Thermador & Kenmore — Step-by-Step

Water pooling at the bottom of your Bosch dishwasher after every cycle isn't just annoying—it's a sign your drain pump has failed. Maybe you've noticed that familiar sour smell too, the one that hits you when you open the door to supposedly clean dishes. The 611332 drain pump handles one critical job: evacuating dirty water from your dishwasher. When it clogs, wears out, or seizes up completely, you're left with standing water and the perfect breeding ground for bacteria.

This replacement fits dozens of Bosch, Thermador, Gaggenau, and Kenmore models including the SHE3AR52UC, SHE3AR55UC, SHE4AM12UC series, and many others. If your model number starts with SHE or you've got a premium Thermador unit, you're likely in the right place.

What You Need Before Starting

Difficulty: Moderate — You'll need to access the pump from underneath the dishwasher, which means some crawling and maneuvering in tight spaces.

Estimated Time: 45-60 minutes

Tools Required:

• Phillips screwdriver
• Torx T20 screwdriver (some models)
• Needle-nose pliers
• Shallow pan or towels for water spillage
• Flashlight or headlamp
• Socket wrench set (optional, for tight spaces)

What You're Getting: The 611332 replaces part numbers 00611332, AP4339596, PS3477702, and 1557816. It's the complete pump assembly with motor.

Safety First

Before touching anything, disconnect power to your dishwasher at the circuit breaker. Don't just turn off the dishwasher—kill the power completely. You'll also need to shut off the water supply valve under your sink. Expect some residual water to spill when you disconnect the pump, so have towels ready. If you've got a hardwired dishwasher instead of a plug-in model, verify power is off with a voltage tester before proceeding.

Step 1: Remove the Lower Dish Rack and Access Panel

Pull out the lower dish rack completely. Remove the spray arm by twisting it counterclockwise (it just unscrews). Now you'll see the filter assembly in the bottom—lift it straight up and set it aside. Beneath that, you'll find a cover plate or sump cover held by 2-4 Torx screws. Remove these screws and lift out the cover to expose the pump housing underneath.

Step 2: Access the Pump from Below

Open your dishwasher door and remove the two screws holding the lower kickplate at the base. The kickplate snaps off once the screws are out. Now you'll need to pull the dishwasher forward slightly—usually 4-6 inches gives you enough room to work. Have someone help tilt it forward gently while you slide a towel underneath to protect your floor. You should now see the pump motor mounted to the bottom of the tub.

Step 3: Disconnect and Remove the Old Pump

Locate the wire harness connected to the pump motor. Press the locking tab and pull the connector straight off—don't yank on the wires themselves. You'll see two hoses: the drain hose and a recirculation hose. Use your pliers to squeeze the spring clamps and slide them back, then twist and pull each hose off. Water will drain out, so position your pan underneath. The pump is held to the sump housing by three screws in a triangular pattern. Remove these screws and carefully twist the entire pump assembly to break it free from the seal. Pull it straight down and out.

Step 4: Install the New 611332 Pump

Check the rubber seal on your new pump—it should be clean and properly seated. Position the pump onto the sump housing, aligning the tabs. Push it up firmly and give it a slight clockwise twist to lock it in place. Thread in the three mounting screws, tightening them in a star pattern to ensure even pressure. Don't overtighten—you're compressing a rubber seal, not metal-to-metal. Reconnect both hoses, sliding the spring clamps back into position about a half-inch from the ends. Push the wire harness connector until you hear it click.

Step 5: Reassemble and Test

Slide the dishwasher back into position carefully. Replace the kickplate and its screws. From inside the tub, reinstall the sump cover with its Torx screws, then the filter assembly and spray arm. Turn your water supply back on and restore power at the breaker. Run a short rinse cycle and watch underneath with your flashlight—you're checking for leaks at the hose connections. If everything's dry after five minutes, you're golden.

Testing After Installation

Run a full normal cycle with the dishwasher empty. Listen for the pump to activate during the drain portions—it should hum smoothly without grinding or squealing. After the cycle completes, open the door and check the bottom. It should be completely dry with no standing water. If you still detect that sour smell even after the new pump is working, the old stagnant water left behind bacteria buildup. Run a cleaning cycle with Affresh dishwasher cleaner (as recommended by Bosch service techs) to eliminate odors and remove soap scum that accumulated while the pump was failing.

Frequently Asked Questions

How do I know if my drain pump is actually bad or if it's just clogged?

Before replacing the pump, check for clogs in the filter and drain hose. Remove the filter assembly and shine a light down into the sump—you're looking for glass shards, twist ties, or food debris. If the pump hums but doesn't drain, it's likely jammed. If it's completely silent when it should be running, the motor has failed and you need the replacement.

Will this pump fit my Thermador dishwasher?

Yes, the 611332 is used across Bosch, Thermador, Gaggenau, and some Kenmore Elite models since these brands share the same parent company and engineering. Check your model number against the compatibility list or look up your current pump's part number—if it's stamped 00611332, AP4339596, or PS3477702, this is your replacement.

Why does my dishwasher still smell bad after replacing the drain pump?

The pump moves water out, but it doesn't clean the interior. Months of standing water created biofilm on the walls, spray arms, and hidden crevices. Use a dishwasher cleaner like Affresh through a full hot cycle, then wipe down the door gasket and interior walls with a vinegar solution. The smell should disappear after 2-3 cleaning cycles.