WPW10605427 W10425238 Washer Drain Pump (OEM) Intended for W

The Verdict

If your Whirlpool washer stopped mid-cycle with an F21 error code and a few inches of water still sitting in the drum, you already know what this is. The WPW10605427 is the OEM replacement drain pump that keeps Whirlpool, Maytag, and Amana front-loaders alive. At 4.7 stars across 235 ratings, it’s clearly doing something right. Here’s what you need to know before you buy.

What you actually get

The box contains the pump assembly with the motor, impeller housing, and integrated drain hose outlet. It’s a direct OEM replacement — the part number cross-references to W10425238, which covers roughly 40 different Whirlpool-built front-load models including the WFW75HEFW series. The pump body is the familiar black ABS plastic with the clear viewing window on the front filter housing. You get the pump itself, nothing else. No screws, no clamps, no o-rings.

Performance and build quality

This pump moves water. The 120V motor spins at 60Hz and pushes roughly 25 gallons per minute through the discharge hose. What stands out in buyer feedback is how quiet it is — one reviewer noted, “I actually had to check if it was running because the old one was so loud.” The rotor is balanced well from the factory, so no vibration at high spin speeds.

The integrated thermal overload protection is a genuine plus. If a sock or coin jams the impeller, the pump shuts down before the motor burns out, then resets automatically once it cools. That’s saved at least a few buyers from buying a second pump a month later.

What buyers consistently praise

The word “perfect fit” appears repeatedly in the reviews. That’s not an accident — this is genuine Whirlpool OEM stock, not a knockoff with slightly-off tolerances. One buyer summed it up: “Exact replacement for the original. Plugged right in, no wire splicing, ran a full cycle and no leaks.” Multiple people mention the install took under an hour with basic hand tools. The wiring harness connector matches the factory plug exactly, so no cutting or crimping.

Where it falls short

Two honest complaints surface. First, the pump ships without mounting hardware. You’ll need to reuse the screws and hose clamps from your old pump. If you tossed the old unit, you’re making a second trip to the hardware store. Second, the inlet port is fixed in one orientation. If your washer has the pump mounted with the inlet rotated 90 degrees from standard, you’ll need a different part number. Check your model’s parts diagram before ordering — this is the one mistake that leads to returns.

Who should buy this

• DIY homeowners with a Whirlpool front-loader throwing F21 or draining slowly — this is a 45-minute fix that’ll save you a $200+ service call.
• Landlords maintaining rental properties with Whirlpool laundry sets need a spare on the shelf.
• Anyone whose original pump failed due to lint buildup or foreign objects — this is the exact same part that came from the factory, so it’ll fit the same way.

Skip it if you need a universal pump that fits multiple brands — this is specifically for Whirlpool-built machines.

FAQ

Q: Will this fit my Maytag washer?
Most Maytag front-loaders built after 2010 share the Whirlpool platform, so yes — but verify your model number against the compatibility list. The W10425238 cross-reference covers most of the lineup.

Q: How long does installation take?
Plan for 30–60 minutes. You’ll need a Phillips screwdriver, a 1/4-inch nut driver, and possibly a pair of pliers for the hose clamps. Tilt the washer back to access the pump from underneath.

Q: Is this actually OEM or a clone?
It’s genuine Whirlpool OEM stock, not an aftermarket reproduction. The part number, packaging, and molded-in markings all match factory parts.

The Verdict

Buy it if your Whirlpool-built washer is throwing F21, draining slowly, or making grinding noises — this is the correct, reliable fix that’ll have your machine running like new.

Skip it if your model needs a rotated inlet port, or if you’re looking for a universal pump to keep in a toolbox for multiple brands.

Rating: 4.6/5 — A solid OEM part that does exactly what it should. The missing mounting hardware and fixed orientation keep it from a perfect score, but for the vast majority of Whirlpool owners, this is the right call.

Where to Buy

👉 Check Price on Amazon →

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.