Whirlpool Washer Drain Pump Assembly Parts — Models & Compatibility

Your Whirlpool washer's stuck mid-cycle with water pooling at the bottom, or maybe you've noticed that musty smell lingering even after cleaning. The drain pump assembly controls water evacuation during the drain and spin cycles, and when it fails — either from debris clogs or motor burnout — you're left with a tub full of standing water. This hub covers the 280187 drain pump assembly that fits over 100 Whirlpool, Maytag, Kenmore, KitchenAid, and Amana washer models.

Is This the Right Part for Your Model?

Check your washer's model number before ordering. On front-load washers, you'll typically find it inside the door frame or behind the door on the front panel. Top-loaders usually have the model plate under the lid or on the back panel near the top. Match your model against our compatibility list — this pump fits the GHW9100 series, GHW9200 series, GHW9400 series, and dozens of other models across multiple brands.

About This Replacement Pump Assembly

The 280187 is a complete drain pump assembly that replaces part numbers AP3953640, 8181684, 8182819, 8182821, 285998, and 1200164. The most common failure mode isn't always a dead motor — it's actually clogs from coins, bobby pins, lint buildup, or small clothing items that jam the impeller. When the pump can't spin freely, it draws excessive current and eventually burns out the motor windings. If your washer doesn't drain or you're getting that persistent musty smell (even after running cleaning cycles), the pump's likely compromised. The smell happens because stagnant water sits in the pump housing between cycles, creating the perfect environment for mold and bacteria growth.

What You're Getting

This is the complete pump assembly with motor, housing, and inlet/outlet connections. You're not just replacing a motor — you're getting fresh seals and a clean impeller chamber, which matters more than people realize. Old pumps accumulate soap scum and biofilm inside the housing that cleaning cycles can't reach.

Compatible Whirlpool Washer Models

This drain pump fits the following Whirlpool washers (showing 20 of 100+ compatible models):

• GHW9100LQ0 — Whirlpool front-load washer
• GHW9100LW0 — Whirlpool front-load washer
• GHW9150PW0 — Whirlpool front-load washer
• GHW9160PW0 — Whirlpool front-load washer
• GHW9200LQ0 — Whirlpool front-load washer
• GHW9200LW0 — Whirlpool front-load washer
• GHW9250MW0 — Whirlpool front-load washer
• GHW9300PW0 — Whirlpool front-load washer
• GHW9400PW0 — Whirlpool front-load washer
• GHW9400PW4 — Whirlpool front-load washer
• GHW9400SU0 — Whirlpool front-load washer
• GHW9460PW0 — Whirlpool front-load washer
• 7MGHW9100MW0 — Whirlpool front-load washer

Note: This part is compatible with over 100 Whirlpool, Maytag, Kenmore, KitchenAid, and Amana washer models. Verify your specific model number before ordering.

Installation Considerations

This is a moderate-difficulty repair. You'll need to access the pump through either the front panel or bottom of the washer depending on your model type. The pump connects to the drain hose and tub with spring clamps or screw clamps, and has an electrical connector you'll need to transfer from the old pump. Before installing the new pump, inspect the drain hose for kinks or clogs — there's no point putting in a fresh pump if the downstream plumbing's blocked.

Pro tip from the installation notes: If your washer's been smelling, run an Affresh cleaning tablet through it monthly after installing the new pump. That'll keep the fresh pump housing from developing the same biofilm buildup that likely contributed to your old pump's failure.

Why This Pump Fails

Drain pumps don't usually die of old age — something kills them. The three main culprits: foreign objects jamming the impeller (check pockets before washing), excessive detergent creating thick residue that overworks the motor, and running the washer with significant load imbalance that causes vibration damage to the pump mounts. That last one's sneaky because you won't notice it until the pump's wobbled loose enough to leak or the shaft bearings wear out.

Order Your Replacement Pump

The 280187 drain pump assembly is available for $128.99 and includes everything needed for a complete pump replacement. Given that a service call for this repair typically runs $250-350 including parts and labor, you're looking at significant savings doing it yourself. Plus, you'll know the job's done right.