[Lifetime Warranty] DD81-02635A Dishwasher Drain Pump - For Samsung Dishwasher DW80CG4021SRAA DW80CG4051SRAA DW80M2020US/AA DW80N3030UB/AA - Replaces B20-3A01 DD81-02635A 4958703 AP6807450

DD81-02635A Dishwasher Drain Pump for Samsung

Key Features

• High-Efficiency Centrifugal Impeller: Specifically designed to generate high-velocity suction to quickly evacuate dirty water and food particles through the drain hose, preventing "standing water" at the bottom of the tub.
• Triple-Tab Twist-Lock Mount: Features a standardized Samsung mounting interface that allows for a tool-free "twist and click" installation into the sump housing once the locking tab is released.
• Precision-Balanced Motor: Engineered for low-vibration operation, reducing cabinet noise and vibration during the final stages of the wash and rinse cycles.
• Thermal Overload Protection: Includes an internal safety sensor that automatically shuts down the motor if it becomes jammed with debris, preventing electrical shorts and protecting the dishwasher's main control board.
• Viton-Grade Internal Seals: Manufactured with high-performance rubber seals that resist the corrosive effects of concentrated detergents and high-temperature water, ensuring a leak-proof lifespan.

Replaces / Cross-Reference Part Numbers

• Primary Part: DD81-02635A.
• Cross-Reference: B20-3A01.
• Industry Standards: AP6807450, PS12590740.

Compatibility & Fitment

This drain pump is the standard replacement for many modern Samsung "Next-Gen" and "StormWash" series dishwashers. Key compatible models include:

• Samsung DW80CG Series: DW80CG4021SRAA, DW80CG4051SRAA, DW80CG5451SRAA.
• Samsung DW80M Series: DW80M2020US/AA, DW80M2020US, DW80M2020UB.
• Samsung DW80N Series: DW80N3030UB/AA, DW80N3030US/AA, DW80N3030UW/AA.
• Samsung DW80R Series: DW80R2031US, DW80R2031UB.
• Note: Specifically for the Drain Pump (evacuation). If your dishwasher isn't spraying water, you likely need the Circulation (Wash) Pump instead.

When to Replace

• Standing Water in Tub: The wash cycle finishes, but several inches of dirty water remain in the bottom of the dishwasher, indicating the pump is not activating or is jammed.
• "5E" or "SE" Error Code: Samsung dishwashers display this specific code when they detect a drainage failure or an electrical fault in the drain pump circuit.
• Loud Grinding/Humming: A loud mechanical noise during the drain portion of the cycle usually means a piece of glass or a bone has entered the pump and damaged the impeller.
• Pump Leaking: Water is dripping from the motor housing or the twist-lock seal, which can trip your home’s GFCI outlet or damage the kitchen floor.
• Continuous Draining: The pump runs constantly, even when the tub is empty, often caused by a shorted motor or a faulty flood sensor triggered by a pump leak.

Installation Tips

• Safety First: You MUST unplug the dishwasher or turn off the circuit breaker. This pump is located under the unit and requires handling electrical connectors in a potentially wet area.
• The "Towel Ready" Rule: Even if the tub looks empty, there will be about a quart of water trapped in the sump and drain hose. Lay a large towel down before removing the old pump.
• Check for Obstructions: Before installing the new DD81-02635A, stick your finger (carefully) into the sump hole where the pump mounts to ensure no glass shards or cherry pits are waiting to jam the new impeller.
• The Locking Tab: To remove the old pump, you must depress a small plastic locking tab on the sump housing before twisting the pump counter-clockwise. Don't force it, or the sump housing may crack.
• Hose Inspection: While the unit is pulled out, check the Drain Hose for kinks or "clogged grease" buildup. A new pump cannot push water through a blocked hose.