Samsung Dishwasher Drain Pump Assembly Parts — Models & Compatibility

If your Samsung dishwasher won't drain properly or makes grinding noises during the drain cycle, you're likely dealing with a failed drain pump assembly. This hub covers the DD81-02635A drain pump — the factory replacement for over 20 Samsung dishwasher models experiencing poor drainage, unusual noises, leaks, or blockages. Whether you've got a DW80N3030 series or a DW80R2031 model, this is the OEM part that restores proper drainage.

Is This the Right Part for Your Model?

Check your dishwasher's model number against our compatibility list below. You'll find the model plate inside the door frame along the top edge or on the left side panel. Samsung model numbers typically start with "DW" followed by numbers and letters — for example, DW80N3030UB/AA or DW80R2031US/AC. If your model matches, this DD81-02635A pump assembly is a direct fit.

About This Replacement Part

The DD81-02635A is Samsung's OEM drain pump assembly that handles the critical job of evacuating water from your dishwasher's tub during and after wash cycles. This pump typically fails due to wear and tear on the impeller, blockages from food debris or broken glass, or damage to the pump's gasket seal. When it goes, you'll notice standing water at the bottom of your dishwasher, slow drainage that extends cycle times, or a loud grinding noise as the motor tries to push water through a jammed impeller. Some owners also report leaks underneath the unit when the gasket deteriorates. Installation is straightforward — you'll disconnect the old pump from the sump housing, detach the electrical connector and drain hoses, then reverse the process with your new assembly. Most repairs take 30-45 minutes once you've removed the lower dish rack and spray arm to access the sump area.

Common Failure Symptoms

• Poor drainage: Water pools at the bottom after cycles complete
• Unusual noises: Grinding, humming, or rattling during drain phase
• Leaks: Water escaping from underneath the dishwasher
• Blockages: Pump can't move water due to debris in impeller

Compatible Samsung Dishwasher Models

This drain pump assembly (DD81-02635A, also replaces AP6807450, PS12593038, and B20-3A01) fits the following Samsung dishwasher models:

• DW80N3030UB/AA, DW80N3030UB/AA-00
• DW80N3030US/AA, DW80N3030US/AA-00
• DW80N3030UW/AA, DW80N3030UW/AA-00
• DW80R2031US/AA, DW80R2031US/AA-00
• DW80R2031US/AC, DW80R2031US/AC-00
• DW80R2031UG/AA, DW80R2031UG/AA-00

This part works across Samsung's DW80N and DW80R series dishwashers manufactured between 2017-2021. If you don't see your exact model suffix listed, check the model plate — variations with different color codes (UB=black, US=stainless, UW=white, UG=graphite) use the same pump assembly.

Installation Overview

Replacing the drain pump requires access to the dishwasher's sump area at the bottom of the tub. You'll need to remove the lower dish rack, unscrew the spray arm, and take out the filter assembly to expose the pump housing. Disconnect the wire harness, loosen the hose clamps on the drain line, and remove the mounting screws holding the pump to the sump. Installation is the reverse process — the new pump fits into the same mounting points with fresh gasket sealing. Samsung's design makes this a DIY-friendly repair if you're comfortable working with basic hand tools.

Why Choose the OEM Part?

The DD81-02635A is Samsung's factory-spec drain pump, not an aftermarket substitute. You get the exact impeller design, motor specs, and gasket materials that Samsung engineers specified for your dishwasher. Aftermarket pumps often use weaker motors or cheaper plastic housings that fail prematurely. At $191.99, this OEM assembly costs more upfront but delivers the reliability and longevity you'd expect from a Samsung original part. It's the same component a service technician would install.