Samsung Dishwasher Drain Pump Parts — Models & Compatibility

When your Samsung dishwasher won't drain and you're left with a pool of dirty water at the bottom, the drain pump is usually the culprit. This hub covers DD31-00005A drain pump compatibility across Samsung's DMR, DMT, and DW80 series dishwashers — the models most prone to drainage failures after 3-5 years of use.

Is This the Right Part for Your Model?

Before ordering, you'll need your exact model number. On Samsung dishwashers, it's typically located on the left or right side of the door frame — open the door fully and look for a white or silver sticker. The model number usually starts with DMR, DMT, or DW80. Cross-reference it against the compatible models list below to confirm DD31-00005A fits your machine.

About This Replacement Drain Pump

The DD31-00005A is Samsung's OEM-spec drain pump that handles the critical job of evacuating wash water during the drain cycle. When it fails, your dishwasher won't drain — the most common symptom reported across Samsung models. This pump replaces older part numbers AP4342621, DD81-01527A, PS4222308, and 1550731, making it backward-compatible with earlier Samsung dishwasher generations. The pump assembly includes the motor, impeller housing, and mounting bracket, so you're getting everything needed for a complete replacement. Most failures happen when debris damages the impeller or when the motor windings burn out after years of heavy use.

Compatible Samsung Dishwasher Models

This drain pump fits the following Samsung dishwasher series and models:

• DMR Series: DMR57LFB, DMR57LFS, DMR57LFW, DMR77LHB, DMR77LHS, DMR77LHW, DMR78AHB, DMR78AHS, DMR78AHW
• DMT Series: DMT300RFB, DMT300RFS, DMT300RFW, DMT400RHB, DMT400RHS, DMT400RHW, DMT610RHB
• DW80 Series: Compatible with select DW80 models (verify your specific model number)

Not sure if your model's on this list? Use the model number lookup tool above or contact us with your full model number for confirmation.

Common Drain Pump Failure Signs

Your Samsung dishwasher needs a new drain pump if you're experiencing:

• Water standing at the bottom of the tub after a cycle completes
• Humming or buzzing noise during the drain cycle, but no water movement
• Error codes related to drainage (typically flashing lights or OE/E1 codes)
• Complete silence when the drain cycle should activate — no motor sound at all

Why Samsung Drain Pumps Fail

These pumps don't last forever. The impeller can crack from hard water deposits or get jammed by broken glass, food debris, or small utensils that slip through the filter. The motor itself wears out from constant start-stop cycles — Samsung dishwashers run 200+ drain cycles per year in typical households. After 4-6 years, the bearings seize or the windings short out. When that happens, you'll smell burning or hear grinding sounds before it quits completely.

What's Included

The DD31-00005A replacement includes the complete pump assembly — motor, impeller housing, inlet/outlet ports, and mounting hardware. You won't need to buy separate components. Just remove the old pump and install this one in its place.

Installation Overview

Replacing a Samsung dishwasher drain pump requires accessing the bottom of the machine. You'll disconnect the drain hose, remove the pump mounting screws, disconnect the wire harness, and reverse the process with the new pump. It's not a beginner-level repair, but it's doable if you're comfortable working with basic hand tools and electrical connections. Budget 45-90 minutes depending on how easily your dishwasher tips back or how tight your installation space is.

Price and Availability

The DD31-00005A drain pump is priced at $116.99 — significantly less than a service call, which typically runs $200-300 including parts and labor. Stock availability varies, so check current inventory before starting your repair.